diff --git a/.idea/libraries/Maven__joda_time_joda_time_2_9.xml b/.idea/libraries/Maven__joda_time_joda_time_2_5.xml
similarity index 67%
rename from .idea/libraries/Maven__joda_time_joda_time_2_9.xml
rename to .idea/libraries/Maven__joda_time_joda_time_2_5.xml
index bb6a71f..7eb240e 100644
--- a/.idea/libraries/Maven__joda_time_joda_time_2_9.xml
+++ b/.idea/libraries/Maven__joda_time_joda_time_2_5.xml
@@ -1,13 +1,13 @@
 <component name="libraryTable">
-  <library name="Maven: joda-time:joda-time:2.9">
+  <library name="Maven: joda-time:joda-time:2.5">
     <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/joda-time/joda-time/2.9/joda-time-2.9.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/joda-time/joda-time/2.5/joda-time-2.5.jar!/" />
     </CLASSES>
     <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/joda-time/joda-time/2.9/joda-time-2.9-javadoc.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/joda-time/joda-time/2.5/joda-time-2.5-javadoc.jar!/" />
     </JAVADOC>
     <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/joda-time/joda-time/2.9/joda-time-2.9-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/joda-time/joda-time/2.5/joda-time-2.5-sources.jar!/" />
     </SOURCES>
   </library>
 </component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__net_razorvine_pyrolite_4_9.xml b/.idea/libraries/Maven__net_razorvine_pyrolite_4_4.xml
similarity index 66%
rename from .idea/libraries/Maven__net_razorvine_pyrolite_4_9.xml
rename to .idea/libraries/Maven__net_razorvine_pyrolite_4_4.xml
index 1256ca5..84ff505 100644
--- a/.idea/libraries/Maven__net_razorvine_pyrolite_4_9.xml
+++ b/.idea/libraries/Maven__net_razorvine_pyrolite_4_4.xml
@@ -1,13 +1,13 @@
 <component name="libraryTable">
-  <library name="Maven: net.razorvine:pyrolite:4.9">
+  <library name="Maven: net.razorvine:pyrolite:4.4">
     <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/net/razorvine/pyrolite/4.9/pyrolite-4.9.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/net/razorvine/pyrolite/4.4/pyrolite-4.4.jar!/" />
     </CLASSES>
     <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/net/razorvine/pyrolite/4.9/pyrolite-4.9-javadoc.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/net/razorvine/pyrolite/4.4/pyrolite-4.4-javadoc.jar!/" />
     </JAVADOC>
     <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/net/razorvine/pyrolite/4.9/pyrolite-4.9-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/net/razorvine/pyrolite/4.4/pyrolite-4.4-sources.jar!/" />
     </SOURCES>
   </library>
 </component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__net_sf_py4j_py4j_0_8_2_1.xml b/.idea/libraries/Maven__net_sf_py4j_py4j_0_8_2_1.xml
new file mode 100644
index 0000000..b771ebc
--- /dev/null
+++ b/.idea/libraries/Maven__net_sf_py4j_py4j_0_8_2_1.xml
@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: net.sf.py4j:py4j:0.8.2.1">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/net/sf/py4j/py4j/0.8.2.1/py4j-0.8.2.1.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/net/sf/py4j/py4j/0.8.2.1/py4j-0.8.2.1-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/net/sf/py4j/py4j/0.8.2.1/py4j-0.8.2.1-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__net_sf_py4j_py4j_0_9.xml b/.idea/libraries/Maven__net_sf_py4j_py4j_0_9.xml
deleted file mode 100644
index 67ed84d..0000000
--- a/.idea/libraries/Maven__net_sf_py4j_py4j_0_9.xml
+++ /dev/null
@@ -1,13 +0,0 @@
-<component name="libraryTable">
-  <library name="Maven: net.sf.py4j:py4j:0.9">
-    <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/net/sf/py4j/py4j/0.9/py4j-0.9.jar!/" />
-    </CLASSES>
-    <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/net/sf/py4j/py4j/0.9/py4j-0.9-javadoc.jar!/" />
-    </JAVADOC>
-    <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/net/sf/py4j/py4j/0.9/py4j-0.9-sources.jar!/" />
-    </SOURCES>
-  </library>
-</component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_apache_curator_curator_client_2_6_0.xml b/.idea/libraries/Maven__org_apache_curator_curator_client_2_1_0_incubating.xml
similarity index 50%
rename from .idea/libraries/Maven__org_apache_curator_curator_client_2_6_0.xml
rename to .idea/libraries/Maven__org_apache_curator_curator_client_2_1_0_incubating.xml
index 326a531..f32bd7d 100644
--- a/.idea/libraries/Maven__org_apache_curator_curator_client_2_6_0.xml
+++ b/.idea/libraries/Maven__org_apache_curator_curator_client_2_1_0_incubating.xml
@@ -1,13 +1,13 @@
 <component name="libraryTable">
-  <library name="Maven: org.apache.curator:curator-client:2.6.0">
+  <library name="Maven: org.apache.curator:curator-client:2.1.0-incubating">
     <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/curator/curator-client/2.6.0/curator-client-2.6.0.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/curator/curator-client/2.1.0-incubating/curator-client-2.1.0-incubating.jar!/" />
     </CLASSES>
     <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/curator/curator-client/2.6.0/curator-client-2.6.0-javadoc.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/curator/curator-client/2.1.0-incubating/curator-client-2.1.0-incubating-javadoc.jar!/" />
     </JAVADOC>
     <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/curator/curator-client/2.6.0/curator-client-2.6.0-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/curator/curator-client/2.1.0-incubating/curator-client-2.1.0-incubating-sources.jar!/" />
     </SOURCES>
   </library>
 </component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_apache_spark_spark_catalyst_2_10_1_6_1.xml b/.idea/libraries/Maven__org_apache_spark_spark_catalyst_2_10_1_5_1.xml
similarity index 55%
rename from .idea/libraries/Maven__org_apache_spark_spark_catalyst_2_10_1_6_1.xml
rename to .idea/libraries/Maven__org_apache_spark_spark_catalyst_2_10_1_5_1.xml
index d175fef..b157e29 100644
--- a/.idea/libraries/Maven__org_apache_spark_spark_catalyst_2_10_1_6_1.xml
+++ b/.idea/libraries/Maven__org_apache_spark_spark_catalyst_2_10_1_5_1.xml
@@ -1,13 +1,13 @@
 <component name="libraryTable">
-  <library name="Maven: org.apache.spark:spark-catalyst_2.10:1.6.1">
+  <library name="Maven: org.apache.spark:spark-catalyst_2.10:1.5.1">
     <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-catalyst_2.10/1.6.1/spark-catalyst_2.10-1.6.1.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-catalyst_2.10/1.5.1/spark-catalyst_2.10-1.5.1.jar!/" />
     </CLASSES>
     <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-catalyst_2.10/1.6.1/spark-catalyst_2.10-1.6.1-javadoc.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-catalyst_2.10/1.5.1/spark-catalyst_2.10-1.5.1-javadoc.jar!/" />
     </JAVADOC>
     <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-catalyst_2.10/1.6.1/spark-catalyst_2.10-1.6.1-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-catalyst_2.10/1.5.1/spark-catalyst_2.10-1.5.1-sources.jar!/" />
     </SOURCES>
   </library>
 </component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_apache_spark_spark_core_2_10_1_6_1.xml b/.idea/libraries/Maven__org_apache_spark_spark_core_2_10_1_5_1.xml
similarity index 57%
rename from .idea/libraries/Maven__org_apache_spark_spark_core_2_10_1_6_1.xml
rename to .idea/libraries/Maven__org_apache_spark_spark_core_2_10_1_5_1.xml
index 7fc7b73..f078dfd 100644
--- a/.idea/libraries/Maven__org_apache_spark_spark_core_2_10_1_6_1.xml
+++ b/.idea/libraries/Maven__org_apache_spark_spark_core_2_10_1_5_1.xml
@@ -1,13 +1,13 @@
 <component name="libraryTable">
-  <library name="Maven: org.apache.spark:spark-core_2.10:1.6.1">
+  <library name="Maven: org.apache.spark:spark-core_2.10:1.5.1">
     <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-core_2.10/1.6.1/spark-core_2.10-1.6.1.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-core_2.10/1.5.1/spark-core_2.10-1.5.1.jar!/" />
     </CLASSES>
     <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-core_2.10/1.6.1/spark-core_2.10-1.6.1-javadoc.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-core_2.10/1.5.1/spark-core_2.10-1.5.1-javadoc.jar!/" />
     </JAVADOC>
     <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-core_2.10/1.6.1/spark-core_2.10-1.6.1-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-core_2.10/1.5.1/spark-core_2.10-1.5.1-sources.jar!/" />
     </SOURCES>
   </library>
 </component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_apache_spark_spark_hive_2_10_1_6_1.xml b/.idea/libraries/Maven__org_apache_spark_spark_hive_2_10_1_5_1.xml
similarity index 57%
rename from .idea/libraries/Maven__org_apache_spark_spark_hive_2_10_1_6_1.xml
rename to .idea/libraries/Maven__org_apache_spark_spark_hive_2_10_1_5_1.xml
index b925330..d8dc75e 100644
--- a/.idea/libraries/Maven__org_apache_spark_spark_hive_2_10_1_6_1.xml
+++ b/.idea/libraries/Maven__org_apache_spark_spark_hive_2_10_1_5_1.xml
@@ -1,13 +1,13 @@
 <component name="libraryTable">
-  <library name="Maven: org.apache.spark:spark-hive_2.10:1.6.1">
+  <library name="Maven: org.apache.spark:spark-hive_2.10:1.5.1">
     <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-hive_2.10/1.6.1/spark-hive_2.10-1.6.1.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-hive_2.10/1.5.1/spark-hive_2.10-1.5.1.jar!/" />
     </CLASSES>
     <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-hive_2.10/1.6.1/spark-hive_2.10-1.6.1-javadoc.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-hive_2.10/1.5.1/spark-hive_2.10-1.5.1-javadoc.jar!/" />
     </JAVADOC>
     <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-hive_2.10/1.6.1/spark-hive_2.10-1.6.1-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-hive_2.10/1.5.1/spark-hive_2.10-1.5.1-sources.jar!/" />
     </SOURCES>
   </library>
 </component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_apache_spark_spark_launcher_2_10_1_6_1.xml b/.idea/libraries/Maven__org_apache_spark_spark_launcher_2_10_1_5_1.xml
similarity index 55%
rename from .idea/libraries/Maven__org_apache_spark_spark_launcher_2_10_1_6_1.xml
rename to .idea/libraries/Maven__org_apache_spark_spark_launcher_2_10_1_5_1.xml
index da6bb77..0c6463e 100644
--- a/.idea/libraries/Maven__org_apache_spark_spark_launcher_2_10_1_6_1.xml
+++ b/.idea/libraries/Maven__org_apache_spark_spark_launcher_2_10_1_5_1.xml
@@ -1,13 +1,13 @@
 <component name="libraryTable">
-  <library name="Maven: org.apache.spark:spark-launcher_2.10:1.6.1">
+  <library name="Maven: org.apache.spark:spark-launcher_2.10:1.5.1">
     <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-launcher_2.10/1.6.1/spark-launcher_2.10-1.6.1.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-launcher_2.10/1.5.1/spark-launcher_2.10-1.5.1.jar!/" />
     </CLASSES>
     <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-launcher_2.10/1.6.1/spark-launcher_2.10-1.6.1-javadoc.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-launcher_2.10/1.5.1/spark-launcher_2.10-1.5.1-javadoc.jar!/" />
     </JAVADOC>
     <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-launcher_2.10/1.6.1/spark-launcher_2.10-1.6.1-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-launcher_2.10/1.5.1/spark-launcher_2.10-1.5.1-sources.jar!/" />
     </SOURCES>
   </library>
 </component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_apache_spark_spark_network_common_2_10_1_6_1.xml b/.idea/libraries/Maven__org_apache_spark_spark_network_common_2_10_1_5_1.xml
similarity index 66%
rename from .idea/libraries/Maven__org_apache_spark_spark_network_common_2_10_1_6_1.xml
rename to .idea/libraries/Maven__org_apache_spark_spark_network_common_2_10_1_5_1.xml
index ea0754c..15537c9 100644
--- a/.idea/libraries/Maven__org_apache_spark_spark_network_common_2_10_1_6_1.xml
+++ b/.idea/libraries/Maven__org_apache_spark_spark_network_common_2_10_1_5_1.xml
@@ -1,13 +1,13 @@
 <component name="libraryTable">
-  <library name="Maven: org.apache.spark:spark-network-common_2.10:1.6.1">
+  <library name="Maven: org.apache.spark:spark-network-common_2.10:1.5.1">
     <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-network-common_2.10/1.6.1/spark-network-common_2.10-1.6.1.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-network-common_2.10/1.5.1/spark-network-common_2.10-1.5.1.jar!/" />
     </CLASSES>
     <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-network-common_2.10/1.6.1/spark-network-common_2.10-1.6.1-javadoc.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-network-common_2.10/1.5.1/spark-network-common_2.10-1.5.1-javadoc.jar!/" />
     </JAVADOC>
     <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-network-common_2.10/1.6.1/spark-network-common_2.10-1.6.1-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-network-common_2.10/1.5.1/spark-network-common_2.10-1.5.1-sources.jar!/" />
     </SOURCES>
   </library>
 </component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_apache_spark_spark_network_shuffle_2_10_1_6_1.xml b/.idea/libraries/Maven__org_apache_spark_spark_network_shuffle_2_10_1_5_1.xml
similarity index 66%
rename from .idea/libraries/Maven__org_apache_spark_spark_network_shuffle_2_10_1_6_1.xml
rename to .idea/libraries/Maven__org_apache_spark_spark_network_shuffle_2_10_1_5_1.xml
index f9f01e6..c7748f6 100644
--- a/.idea/libraries/Maven__org_apache_spark_spark_network_shuffle_2_10_1_6_1.xml
+++ b/.idea/libraries/Maven__org_apache_spark_spark_network_shuffle_2_10_1_5_1.xml
@@ -1,13 +1,13 @@
 <component name="libraryTable">
-  <library name="Maven: org.apache.spark:spark-network-shuffle_2.10:1.6.1">
+  <library name="Maven: org.apache.spark:spark-network-shuffle_2.10:1.5.1">
     <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-network-shuffle_2.10/1.6.1/spark-network-shuffle_2.10-1.6.1.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-network-shuffle_2.10/1.5.1/spark-network-shuffle_2.10-1.5.1.jar!/" />
     </CLASSES>
     <JAVADOC>
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+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-network-shuffle_2.10/1.5.1/spark-network-shuffle_2.10-1.5.1-javadoc.jar!/" />
     </JAVADOC>
     <SOURCES>
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+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-network-shuffle_2.10/1.5.1/spark-network-shuffle_2.10-1.5.1-sources.jar!/" />
     </SOURCES>
   </library>
 </component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_apache_spark_spark_sql_2_10_1_6_1.xml b/.idea/libraries/Maven__org_apache_spark_spark_sql_2_10_1_5_1.xml
similarity index 58%
rename from .idea/libraries/Maven__org_apache_spark_spark_sql_2_10_1_6_1.xml
rename to .idea/libraries/Maven__org_apache_spark_spark_sql_2_10_1_5_1.xml
index d5fdaee..05a746e 100644
--- a/.idea/libraries/Maven__org_apache_spark_spark_sql_2_10_1_6_1.xml
+++ b/.idea/libraries/Maven__org_apache_spark_spark_sql_2_10_1_5_1.xml
@@ -1,13 +1,13 @@
 <component name="libraryTable">
-  <library name="Maven: org.apache.spark:spark-sql_2.10:1.6.1">
+  <library name="Maven: org.apache.spark:spark-sql_2.10:1.5.1">
     <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-sql_2.10/1.6.1/spark-sql_2.10-1.6.1.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-sql_2.10/1.5.1/spark-sql_2.10-1.5.1.jar!/" />
     </CLASSES>
     <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-sql_2.10/1.6.1/spark-sql_2.10-1.6.1-javadoc.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-sql_2.10/1.5.1/spark-sql_2.10-1.5.1-javadoc.jar!/" />
     </JAVADOC>
     <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-sql_2.10/1.6.1/spark-sql_2.10-1.6.1-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-sql_2.10/1.5.1/spark-sql_2.10-1.5.1-sources.jar!/" />
     </SOURCES>
   </library>
 </component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_apache_spark_spark_streaming_2_10_1_6_1.xml b/.idea/libraries/Maven__org_apache_spark_spark_streaming_2_10_1_5_1.xml
similarity index 65%
rename from .idea/libraries/Maven__org_apache_spark_spark_streaming_2_10_1_6_1.xml
rename to .idea/libraries/Maven__org_apache_spark_spark_streaming_2_10_1_5_1.xml
index 881bae0..820272a 100644
--- a/.idea/libraries/Maven__org_apache_spark_spark_streaming_2_10_1_6_1.xml
+++ b/.idea/libraries/Maven__org_apache_spark_spark_streaming_2_10_1_5_1.xml
@@ -1,13 +1,13 @@
 <component name="libraryTable">
-  <library name="Maven: org.apache.spark:spark-streaming_2.10:1.6.1">
+  <library name="Maven: org.apache.spark:spark-streaming_2.10:1.5.1">
     <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-streaming_2.10/1.6.1/spark-streaming_2.10-1.6.1.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-streaming_2.10/1.5.1/spark-streaming_2.10-1.5.1.jar!/" />
     </CLASSES>
     <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-streaming_2.10/1.6.1/spark-streaming_2.10-1.6.1-javadoc.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-streaming_2.10/1.5.1/spark-streaming_2.10-1.5.1-javadoc.jar!/" />
     </JAVADOC>
     <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-streaming_2.10/1.6.1/spark-streaming_2.10-1.6.1-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-streaming_2.10/1.5.1/spark-streaming_2.10-1.5.1-sources.jar!/" />
     </SOURCES>
   </library>
 </component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_apache_spark_spark_unsafe_2_10_1_6_1.xml b/.idea/libraries/Maven__org_apache_spark_spark_unsafe_2_10_1_5_1.xml
similarity index 56%
rename from .idea/libraries/Maven__org_apache_spark_spark_unsafe_2_10_1_6_1.xml
rename to .idea/libraries/Maven__org_apache_spark_spark_unsafe_2_10_1_5_1.xml
index f0cc447..b60a3c0 100644
--- a/.idea/libraries/Maven__org_apache_spark_spark_unsafe_2_10_1_6_1.xml
+++ b/.idea/libraries/Maven__org_apache_spark_spark_unsafe_2_10_1_5_1.xml
@@ -1,13 +1,13 @@
 <component name="libraryTable">
-  <library name="Maven: org.apache.spark:spark-unsafe_2.10:1.6.1">
+  <library name="Maven: org.apache.spark:spark-unsafe_2.10:1.5.1">
     <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-unsafe_2.10/1.6.1/spark-unsafe_2.10-1.6.1.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-unsafe_2.10/1.5.1/spark-unsafe_2.10-1.5.1.jar!/" />
     </CLASSES>
     <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-unsafe_2.10/1.6.1/spark-unsafe_2.10-1.6.1-javadoc.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-unsafe_2.10/1.5.1/spark-unsafe_2.10-1.5.1-javadoc.jar!/" />
     </JAVADOC>
     <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-unsafe_2.10/1.6.1/spark-unsafe_2.10-1.6.1-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/apache/spark/spark-unsafe_2.10/1.5.1/spark-unsafe_2.10-1.5.1-sources.jar!/" />
     </SOURCES>
   </library>
 </component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_apache_xbean_xbean_asm5_shaded_4_4.xml b/.idea/libraries/Maven__org_apache_xbean_xbean_asm5_shaded_4_4.xml
deleted file mode 100644
index 9b913be..0000000
--- a/.idea/libraries/Maven__org_apache_xbean_xbean_asm5_shaded_4_4.xml
+++ /dev/null
@@ -1,13 +0,0 @@
-<component name="libraryTable">
-  <library name="Maven: org.apache.xbean:xbean-asm5-shaded:4.4">
-    <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/xbean/xbean-asm5-shaded/4.4/xbean-asm5-shaded-4.4.jar!/" />
-    </CLASSES>
-    <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/xbean/xbean-asm5-shaded/4.4/xbean-asm5-shaded-4.4-javadoc.jar!/" />
-    </JAVADOC>
-    <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/apache/xbean/xbean-asm5-shaded/4.4/xbean-asm5-shaded-4.4-sources.jar!/" />
-    </SOURCES>
-  </library>
-</component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_roaringbitmap_RoaringBitmap_0_5_11.xml b/.idea/libraries/Maven__org_roaringbitmap_RoaringBitmap_0_4_5.xml
similarity index 57%
rename from .idea/libraries/Maven__org_roaringbitmap_RoaringBitmap_0_5_11.xml
rename to .idea/libraries/Maven__org_roaringbitmap_RoaringBitmap_0_4_5.xml
index 9c200b9..171c39e 100644
--- a/.idea/libraries/Maven__org_roaringbitmap_RoaringBitmap_0_5_11.xml
+++ b/.idea/libraries/Maven__org_roaringbitmap_RoaringBitmap_0_4_5.xml
@@ -1,13 +1,13 @@
 <component name="libraryTable">
-  <library name="Maven: org.roaringbitmap:RoaringBitmap:0.5.11">
+  <library name="Maven: org.roaringbitmap:RoaringBitmap:0.4.5">
     <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/roaringbitmap/RoaringBitmap/0.5.11/RoaringBitmap-0.5.11.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/roaringbitmap/RoaringBitmap/0.4.5/RoaringBitmap-0.4.5.jar!/" />
     </CLASSES>
     <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/org/roaringbitmap/RoaringBitmap/0.5.11/RoaringBitmap-0.5.11-javadoc.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/roaringbitmap/RoaringBitmap/0.4.5/RoaringBitmap-0.4.5-javadoc.jar!/" />
     </JAVADOC>
     <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/roaringbitmap/RoaringBitmap/0.5.11/RoaringBitmap-0.5.11-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/roaringbitmap/RoaringBitmap/0.4.5/RoaringBitmap-0.4.5-sources.jar!/" />
     </SOURCES>
   </library>
 </component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_scala_lang_scala_library_2_10_5.xml b/.idea/libraries/Maven__org_scala_lang_scala_library_2_10_4.xml
similarity index 59%
rename from .idea/libraries/Maven__org_scala_lang_scala_library_2_10_5.xml
rename to .idea/libraries/Maven__org_scala_lang_scala_library_2_10_4.xml
index 8d53435..f159907 100644
--- a/.idea/libraries/Maven__org_scala_lang_scala_library_2_10_5.xml
+++ b/.idea/libraries/Maven__org_scala_lang_scala_library_2_10_4.xml
@@ -1,13 +1,13 @@
 <component name="libraryTable">
-  <library name="Maven: org.scala-lang:scala-library:2.10.5">
+  <library name="Maven: org.scala-lang:scala-library:2.10.4">
     <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/scala-lang/scala-library/2.10.5/scala-library-2.10.5.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/scala-lang/scala-library/2.10.4/scala-library-2.10.4.jar!/" />
     </CLASSES>
     <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/org/scala-lang/scala-library/2.10.5/scala-library-2.10.5-javadoc.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/scala-lang/scala-library/2.10.4/scala-library-2.10.4-javadoc.jar!/" />
     </JAVADOC>
     <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/scala-lang/scala-library/2.10.5/scala-library-2.10.5-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/scala-lang/scala-library/2.10.4/scala-library-2.10.4-sources.jar!/" />
     </SOURCES>
   </library>
 </component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_spark_project_hive_hive_cli_1_2_1_spark.xml b/.idea/libraries/Maven__org_spark_project_hive_hive_cli_1_2_1_spark.xml
deleted file mode 100644
index 74af790..0000000
--- a/.idea/libraries/Maven__org_spark_project_hive_hive_cli_1_2_1_spark.xml
+++ /dev/null
@@ -1,13 +0,0 @@
-<component name="libraryTable">
-  <library name="Maven: org.spark-project.hive:hive-cli:1.2.1.spark">
-    <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/spark-project/hive/hive-cli/1.2.1.spark/hive-cli-1.2.1.spark.jar!/" />
-    </CLASSES>
-    <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/org/spark-project/hive/hive-cli/1.2.1.spark/hive-cli-1.2.1.spark-javadoc.jar!/" />
-    </JAVADOC>
-    <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/spark-project/hive/hive-cli/1.2.1.spark/hive-cli-1.2.1.spark-sources.jar!/" />
-    </SOURCES>
-  </library>
-</component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_tachyonproject_tachyon_client_0_8_2.xml b/.idea/libraries/Maven__org_tachyonproject_tachyon_client_0_7_1.xml
similarity index 57%
rename from .idea/libraries/Maven__org_tachyonproject_tachyon_client_0_8_2.xml
rename to .idea/libraries/Maven__org_tachyonproject_tachyon_client_0_7_1.xml
index da6af3b..e14969f 100644
--- a/.idea/libraries/Maven__org_tachyonproject_tachyon_client_0_8_2.xml
+++ b/.idea/libraries/Maven__org_tachyonproject_tachyon_client_0_7_1.xml
@@ -1,13 +1,13 @@
 <component name="libraryTable">
-  <library name="Maven: org.tachyonproject:tachyon-client:0.8.2">
+  <library name="Maven: org.tachyonproject:tachyon-client:0.7.1">
     <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-client/0.8.2/tachyon-client-0.8.2.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-client/0.7.1/tachyon-client-0.7.1.jar!/" />
     </CLASSES>
     <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-client/0.8.2/tachyon-client-0.8.2-javadoc.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-client/0.7.1/tachyon-client-0.7.1-javadoc.jar!/" />
     </JAVADOC>
     <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-client/0.8.2/tachyon-client-0.8.2-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-client/0.7.1/tachyon-client-0.7.1-sources.jar!/" />
     </SOURCES>
   </library>
 </component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_tachyonproject_tachyon_underfs_hdfs_0_8_2.xml b/.idea/libraries/Maven__org_tachyonproject_tachyon_underfs_hdfs_0_7_1.xml
similarity index 65%
rename from .idea/libraries/Maven__org_tachyonproject_tachyon_underfs_hdfs_0_8_2.xml
rename to .idea/libraries/Maven__org_tachyonproject_tachyon_underfs_hdfs_0_7_1.xml
index 4aafe1f..cd16342 100644
--- a/.idea/libraries/Maven__org_tachyonproject_tachyon_underfs_hdfs_0_8_2.xml
+++ b/.idea/libraries/Maven__org_tachyonproject_tachyon_underfs_hdfs_0_7_1.xml
@@ -1,13 +1,13 @@
 <component name="libraryTable">
-  <library name="Maven: org.tachyonproject:tachyon-underfs-hdfs:0.8.2">
+  <library name="Maven: org.tachyonproject:tachyon-underfs-hdfs:0.7.1">
     <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-underfs-hdfs/0.8.2/tachyon-underfs-hdfs-0.8.2.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-underfs-hdfs/0.7.1/tachyon-underfs-hdfs-0.7.1.jar!/" />
     </CLASSES>
     <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-underfs-hdfs/0.8.2/tachyon-underfs-hdfs-0.8.2-javadoc.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-underfs-hdfs/0.7.1/tachyon-underfs-hdfs-0.7.1-javadoc.jar!/" />
     </JAVADOC>
     <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-underfs-hdfs/0.8.2/tachyon-underfs-hdfs-0.8.2-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-underfs-hdfs/0.7.1/tachyon-underfs-hdfs-0.7.1-sources.jar!/" />
     </SOURCES>
   </library>
 </component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_tachyonproject_tachyon_underfs_local_0_8_2.xml b/.idea/libraries/Maven__org_tachyonproject_tachyon_underfs_local_0_7_1.xml
similarity index 65%
rename from .idea/libraries/Maven__org_tachyonproject_tachyon_underfs_local_0_8_2.xml
rename to .idea/libraries/Maven__org_tachyonproject_tachyon_underfs_local_0_7_1.xml
index 745e087..845d2cb 100644
--- a/.idea/libraries/Maven__org_tachyonproject_tachyon_underfs_local_0_8_2.xml
+++ b/.idea/libraries/Maven__org_tachyonproject_tachyon_underfs_local_0_7_1.xml
@@ -1,13 +1,13 @@
 <component name="libraryTable">
-  <library name="Maven: org.tachyonproject:tachyon-underfs-local:0.8.2">
+  <library name="Maven: org.tachyonproject:tachyon-underfs-local:0.7.1">
     <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-underfs-local/0.8.2/tachyon-underfs-local-0.8.2.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-underfs-local/0.7.1/tachyon-underfs-local-0.7.1.jar!/" />
     </CLASSES>
     <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-underfs-local/0.8.2/tachyon-underfs-local-0.8.2-javadoc.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-underfs-local/0.7.1/tachyon-underfs-local-0.7.1-javadoc.jar!/" />
     </JAVADOC>
     <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-underfs-local/0.8.2/tachyon-underfs-local-0.8.2-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-underfs-local/0.7.1/tachyon-underfs-local-0.7.1-sources.jar!/" />
     </SOURCES>
   </library>
 </component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_tachyonproject_tachyon_underfs_s3_0_8_2.xml b/.idea/libraries/Maven__org_tachyonproject_tachyon_underfs_s3_0_8_2.xml
deleted file mode 100644
index e6e68fd..0000000
--- a/.idea/libraries/Maven__org_tachyonproject_tachyon_underfs_s3_0_8_2.xml
+++ /dev/null
@@ -1,13 +0,0 @@
-<component name="libraryTable">
-  <library name="Maven: org.tachyonproject:tachyon-underfs-s3:0.8.2">
-    <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-underfs-s3/0.8.2/tachyon-underfs-s3-0.8.2.jar!/" />
-    </CLASSES>
-    <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-underfs-s3/0.8.2/tachyon-underfs-s3-0.8.2-javadoc.jar!/" />
-    </JAVADOC>
-    <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/tachyonproject/tachyon-underfs-s3/0.8.2/tachyon-underfs-s3-0.8.2-sources.jar!/" />
-    </SOURCES>
-  </library>
-</component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_xerial_snappy_snappy_java_1_1_2.xml b/.idea/libraries/Maven__org_xerial_snappy_snappy_java_1_1_1_7.xml
similarity index 58%
rename from .idea/libraries/Maven__org_xerial_snappy_snappy_java_1_1_2.xml
rename to .idea/libraries/Maven__org_xerial_snappy_snappy_java_1_1_1_7.xml
index a93559a..61c0f2b 100644
--- a/.idea/libraries/Maven__org_xerial_snappy_snappy_java_1_1_2.xml
+++ b/.idea/libraries/Maven__org_xerial_snappy_snappy_java_1_1_1_7.xml
@@ -1,13 +1,13 @@
 <component name="libraryTable">
-  <library name="Maven: org.xerial.snappy:snappy-java:1.1.2">
+  <library name="Maven: org.xerial.snappy:snappy-java:1.1.1.7">
     <CLASSES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/xerial/snappy/snappy-java/1.1.2/snappy-java-1.1.2.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/xerial/snappy/snappy-java/1.1.1.7/snappy-java-1.1.1.7.jar!/" />
     </CLASSES>
     <JAVADOC>
-      <root url="jar://$MAVEN_REPOSITORY$/org/xerial/snappy/snappy-java/1.1.2/snappy-java-1.1.2-javadoc.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/xerial/snappy/snappy-java/1.1.1.7/snappy-java-1.1.1.7-javadoc.jar!/" />
     </JAVADOC>
     <SOURCES>
-      <root url="jar://$MAVEN_REPOSITORY$/org/xerial/snappy/snappy-java/1.1.2/snappy-java-1.1.2-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/xerial/snappy/snappy-java/1.1.1.7/snappy-java-1.1.1.7-sources.jar!/" />
     </SOURCES>
   </library>
 </component>
\ No newline at end of file
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 66a2579..f1dce1c 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -2,7 +2,52 @@
 <project version="4">
   <component name="ChangeListManager">
     <list default="true" id="a7505764-040b-48e2-b2fc-8c5b579e595f" name="Default" comment="">
+      <change beforePath="" afterPath="$PROJECT_DIR$/.idea/libraries/Maven__net_sf_py4j_py4j_0_8_2_1.xml" />
+      <change beforePath="" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/constant/Constants.java" />
+      <change beforePath="" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/TaskDao.java" />
+      <change beforePath="" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/factory/DaoFactory.java" />
+      <change beforePath="" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/impl/TaskDaoImpl.java" />
+      <change beforePath="" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/demo/Singleton.java" />
+      <change beforePath="" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/domain/Task.java" />
+      <change beforePath="" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/jdbc/JDBCHelper.java" />
+      <change beforePath="" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/mockData/MockData.java" />
+      <change beforePath="" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/session/SessionAggrStatAccumulator.java" />
+      <change beforePath="" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java" />
+      <change beforePath="" afterPath="$PROJECT_DIR$/src/test/java/cn/edu/hust/dao/TaskDaoTest.java" />
+      <change beforePath="" afterPath="$PROJECT_DIR$/src/test/java/cn/edu/hust/jdbc/JDBCHelperTest.java" />
+      <change beforePath="" afterPath="$PROJECT_DIR$/src/test/java/cn/edu/hust/json/FastJsonTest.java" />
+      <change beforePath="" afterPath="$PROJECT_DIR$/src/test/java/cn/edu/hust/utils/ParamUtilsTest.java" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__joda_time_joda_time_2_9.xml" afterPath="$PROJECT_DIR$/.idea/libraries/Maven__joda_time_joda_time_2_5.xml" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__net_razorvine_pyrolite_4_9.xml" afterPath="$PROJECT_DIR$/.idea/libraries/Maven__net_razorvine_pyrolite_4_4.xml" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__net_sf_py4j_py4j_0_9.xml" afterPath="" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_curator_curator_client_2_6_0.xml" afterPath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_curator_curator_client_2_1_0_incubating.xml" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_spark_spark_catalyst_2_10_1_6_1.xml" afterPath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_spark_spark_launcher_2_10_1_5_1.xml" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_spark_spark_core_2_10_1_6_1.xml" afterPath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_spark_spark_hive_2_10_1_5_1.xml" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_spark_spark_hive_2_10_1_6_1.xml" afterPath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_spark_spark_core_2_10_1_5_1.xml" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_spark_spark_launcher_2_10_1_6_1.xml" afterPath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_spark_spark_catalyst_2_10_1_5_1.xml" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_spark_spark_network_common_2_10_1_6_1.xml" afterPath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_spark_spark_network_common_2_10_1_5_1.xml" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_spark_spark_network_shuffle_2_10_1_6_1.xml" afterPath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_spark_spark_network_shuffle_2_10_1_5_1.xml" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_spark_spark_sql_2_10_1_6_1.xml" afterPath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_spark_spark_sql_2_10_1_5_1.xml" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_spark_spark_streaming_2_10_1_6_1.xml" afterPath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_spark_spark_streaming_2_10_1_5_1.xml" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_spark_spark_unsafe_2_10_1_6_1.xml" afterPath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_spark_spark_unsafe_2_10_1_5_1.xml" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__org_apache_xbean_xbean_asm5_shaded_4_4.xml" afterPath="" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__org_roaringbitmap_RoaringBitmap_0_5_11.xml" afterPath="$PROJECT_DIR$/.idea/libraries/Maven__org_roaringbitmap_RoaringBitmap_0_4_5.xml" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__org_scala_lang_scala_library_2_10_5.xml" afterPath="$PROJECT_DIR$/.idea/libraries/Maven__org_scala_lang_scala_library_2_10_4.xml" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__org_spark_project_hive_hive_cli_1_2_1_spark.xml" afterPath="" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__org_tachyonproject_tachyon_client_0_8_2.xml" afterPath="$PROJECT_DIR$/.idea/libraries/Maven__org_tachyonproject_tachyon_client_0_7_1.xml" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__org_tachyonproject_tachyon_underfs_hdfs_0_8_2.xml" afterPath="$PROJECT_DIR$/.idea/libraries/Maven__org_tachyonproject_tachyon_underfs_hdfs_0_7_1.xml" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__org_tachyonproject_tachyon_underfs_local_0_8_2.xml" afterPath="$PROJECT_DIR$/.idea/libraries/Maven__org_tachyonproject_tachyon_underfs_local_0_7_1.xml" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__org_tachyonproject_tachyon_underfs_s3_0_8_2.xml" afterPath="" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Maven__org_xerial_snappy_snappy_java_1_1_2.xml" afterPath="$PROJECT_DIR$/.idea/libraries/Maven__org_xerial_snappy_snappy_java_1_1_1_7.xml" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" afterPath="$PROJECT_DIR$/.idea/workspace.xml" />
+      <change beforePath="$PROJECT_DIR$/README.md" afterPath="$PROJECT_DIR$/README.md" />
+      <change beforePath="$PROJECT_DIR$/UserActionAnalyzePlatform.iml" afterPath="$PROJECT_DIR$/UserActionAnalyzePlatform.iml" />
+      <change beforePath="$PROJECT_DIR$/pom.xml" afterPath="$PROJECT_DIR$/pom.xml" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/cn/edu/hust/conf/ConfigurationManager.java" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/conf/ConfigurationManager.java" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/cn/edu/hust/util/DateUtils.java" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/util/DateUtils.java" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/cn/edu/hust/util/StringUtils.java" afterPath="$PROJECT_DIR$/src/main/java/cn/edu/hust/util/StringUtils.java" />
+      <change beforePath="$PROJECT_DIR$/src/main/resources/conf.properties" afterPath="$PROJECT_DIR$/src/main/resources/conf.properties" />
+      <change beforePath="$PROJECT_DIR$/target/classes/conf.properties" afterPath="$PROJECT_DIR$/target/classes/conf.properties" />
     </list>
     <ignored path="$PROJECT_DIR$/out/" />
     <ignored path="$PROJECT_DIR$/target/" />
@@ -14,36 +59,42 @@
     <option name="LAST_RESOLUTION" value="IGNORE" />
   </component>
   <component name="FileEditorManager">
-    <leaf>
-      <file leaf-file-name="ConfigurationManager.java" pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/conf/ConfigurationManager.java">
+    <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
+      <file leaf-file-name="UserVisitAnalyze.java" pinned="false" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="429">
-              <caret line="29" column="22" lean-forward="false" selection-start-line="29" selection-start-column="22" selection-end-line="29" selection-end-column="22" />
+            <state relative-caret-position="400">
+              <caret line="304" column="26" lean-forward="false" selection-start-line="304" selection-start-column="26" selection-end-line="304" selection-end-column="26" />
               <folding>
                 <element signature="imports" expanded="true" />
-                <element signature="e#707#708#0" expanded="true" />
-                <element signature="e#751#752#0" expanded="true" />
+                <element signature="e#4523#4748#0" expanded="true" />
+                <element signature="e#4747#4748#0" expanded="true" />
+                <element signature="e#4978#7719#0" expanded="true" />
+                <element signature="e#7718#7719#0" expanded="true" />
+                <element signature="e#7939#8162#0" expanded="true" />
+                <element signature="e#8161#8162#0" expanded="true" />
+                <element signature="e#8415#9429#0" expanded="true" />
+                <element signature="e#9428#9429#0" expanded="true" />
               </folding>
             </state>
           </provider>
         </entry>
       </file>
-      <file leaf-file-name="conf.properties" pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/src/main/resources/conf.properties">
+      <file leaf-file-name="DateUtils.java" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/util/DateUtils.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="19">
-              <caret line="1" column="11" lean-forward="false" selection-start-line="1" selection-start-column="11" selection-end-line="1" selection-end-column="11" />
+            <state relative-caret-position="636">
+              <caret line="138" column="20" lean-forward="false" selection-start-line="138" selection-start-column="20" selection-end-line="138" selection-end-column="20" />
               <folding />
             </state>
           </provider>
         </entry>
       </file>
-      <file leaf-file-name="pom.xml" pinned="false" current-in-tab="true">
-        <entry file="file://$PROJECT_DIR$/pom.xml">
+      <file leaf-file-name="Constants.java" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/constant/Constants.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="1539">
-              <caret line="81" column="0" lean-forward="false" selection-start-line="81" selection-start-column="0" selection-end-line="81" selection-end-column="0" />
+            <state relative-caret-position="587">
+              <caret line="55" column="48" lean-forward="false" selection-start-line="55" selection-start-column="31" selection-end-line="55" selection-end-column="48" />
               <folding />
             </state>
           </provider>
@@ -54,6 +105,7 @@
   <component name="FileTemplateManagerImpl">
     <option name="RECENT_TEMPLATES">
       <list>
+        <option value="Interface" />
         <option value="Class" />
       </list>
     </option>
@@ -70,13 +122,30 @@
     <option name="CHANGED_PATHS">
       <list>
         <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/until/DateUtils.java" />
-        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/util/DateUtils.java" />
         <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/util/NumberUtils.java" />
-        <option value="$PROJECT_DIR$/README.md" />
-        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/conf/ConfigurationManager.java" />
+        <option value="$PROJECT_DIR$/src/test/java/cn/edu/hust/conf/ConfigurationManagerTest.java" />
+        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/demo/Singleton.java" />
+        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/jdbc/JDBCHelper.java" />
+        <option value="$PROJECT_DIR$/src/test/java/cn/edu/hust/jdbc/JDBCHelperTest.java" />
+        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/TaskDao.java" />
+        <option value="$PROJECT_DIR$/src/test/java/cn/edu/hust/dao/dao.java" />
+        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/factory/DaoFactory.java" />
+        <option value="$PROJECT_DIR$/src/test/java/cn/edu/hust/json/FastJsonTest.java" />
         <option value="$PROJECT_DIR$/src/main/resources/conf.properties" />
+        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/conf/ConfigurationManager.java" />
+        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/mockData/MockData.java" />
+        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/domain/Task.java" />
+        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/util/StringUtils.java" />
+        <option value="$PROJECT_DIR$/src/test/java/cn/edu/hust/dao/TaskDaoTest.java" />
+        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/impl/TaskDaoImpl.java" />
+        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/util/ParamUtils.java" />
+        <option value="$PROJECT_DIR$/src/test/java/cn/edu/hust/utils/ParamUtilsTest.java" />
         <option value="$PROJECT_DIR$/pom.xml" />
-        <option value="$PROJECT_DIR$/src/test/java/cn/edu/hust/conf/ConfigurationManagerTest.java" />
+        <option value="$PROJECT_DIR$/README.md" />
+        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/session/SessionAggrStatAccumulator.java" />
+        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/util/DateUtils.java" />
+        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/constant/Constants.java" />
+        <option value="$PROJECT_DIR$/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java" />
       </list>
     </option>
   </component>
@@ -102,10 +171,9 @@
     <option name="jreName" value="#JAVA_INTERNAL" />
     <option name="vmOptions" value="-DarchetypeCatalog=internal" />
   </component>
-  <component name="ProjectFrameBounds">
-    <option name="y" value="23" />
+  <component name="ProjectFrameBounds" fullScreen="true">
     <option name="width" value="1440" />
-    <option name="height" value="873" />
+    <option name="height" value="900" />
   </component>
   <component name="ProjectInspectionProfilesVisibleTreeState">
     <entry key="Project Default">
@@ -149,7 +217,6 @@
     </navigator>
     <panes>
       <pane id="Scope" />
-      <pane id="Scratches" />
       <pane id="ProjectPane">
         <subPane>
           <expand>
@@ -172,28 +239,50 @@
               <item name="UserActionAnalyzePlatform" type="b2602c69:ProjectViewProjectNode" />
               <item name="UserActionAnalyzePlatform" type="462c0819:PsiDirectoryNode" />
               <item name="src" type="462c0819:PsiDirectoryNode" />
-              <item name="test" type="462c0819:PsiDirectoryNode" />
+              <item name="main" type="462c0819:PsiDirectoryNode" />
+              <item name="java" type="462c0819:PsiDirectoryNode" />
+            </path>
+            <path>
+              <item name="UserActionAnalyzePlatform" type="b2602c69:ProjectViewProjectNode" />
+              <item name="UserActionAnalyzePlatform" type="462c0819:PsiDirectoryNode" />
+              <item name="src" type="462c0819:PsiDirectoryNode" />
+              <item name="main" type="462c0819:PsiDirectoryNode" />
+              <item name="java" type="462c0819:PsiDirectoryNode" />
+              <item name="hust" type="462c0819:PsiDirectoryNode" />
+            </path>
+            <path>
+              <item name="UserActionAnalyzePlatform" type="b2602c69:ProjectViewProjectNode" />
+              <item name="UserActionAnalyzePlatform" type="462c0819:PsiDirectoryNode" />
+              <item name="src" type="462c0819:PsiDirectoryNode" />
+              <item name="main" type="462c0819:PsiDirectoryNode" />
+              <item name="java" type="462c0819:PsiDirectoryNode" />
+              <item name="hust" type="462c0819:PsiDirectoryNode" />
+              <item name="constant" type="462c0819:PsiDirectoryNode" />
             </path>
             <path>
               <item name="UserActionAnalyzePlatform" type="b2602c69:ProjectViewProjectNode" />
               <item name="UserActionAnalyzePlatform" type="462c0819:PsiDirectoryNode" />
               <item name="src" type="462c0819:PsiDirectoryNode" />
-              <item name="test" type="462c0819:PsiDirectoryNode" />
+              <item name="main" type="462c0819:PsiDirectoryNode" />
               <item name="java" type="462c0819:PsiDirectoryNode" />
+              <item name="hust" type="462c0819:PsiDirectoryNode" />
+              <item name="session" type="462c0819:PsiDirectoryNode" />
             </path>
             <path>
               <item name="UserActionAnalyzePlatform" type="b2602c69:ProjectViewProjectNode" />
               <item name="UserActionAnalyzePlatform" type="462c0819:PsiDirectoryNode" />
               <item name="src" type="462c0819:PsiDirectoryNode" />
-              <item name="test" type="462c0819:PsiDirectoryNode" />
+              <item name="main" type="462c0819:PsiDirectoryNode" />
               <item name="java" type="462c0819:PsiDirectoryNode" />
-              <item name="conf" type="462c0819:PsiDirectoryNode" />
+              <item name="hust" type="462c0819:PsiDirectoryNode" />
+              <item name="util" type="462c0819:PsiDirectoryNode" />
             </path>
           </expand>
           <select />
         </subPane>
       </pane>
       <pane id="AndroidView" />
+      <pane id="Scratches" />
       <pane id="PackagesPane" />
     </panes>
   </component>
@@ -206,9 +295,14 @@
     <property name="settings.editor.selected.configurable" value="MavenSettings" />
     <property name="WebServerToolWindowFactoryState" value="false" />
     <property name="aspect.path.notification.shown" value="true" />
+    <property name="SearchEverywhereHistoryKey" value="&#9;FILE&#9;file:///Users/youyujie/Documents/UserActionAnalyzePlatform/src/main/java/cn/edu/hust/jdbc/JDBCHelper.java" />
   </component>
   <component name="RecentsManager">
+    <key name="MoveClassesOrPackagesDialog.RECENTS_KEY">
+      <recent name="cn.edu.hust.dao" />
+    </key>
     <key name="CopyFile.RECENT_KEYS">
+      <recent name="$PROJECT_DIR$/src/main/java/cn/edu/hust/mockData" />
       <recent name="$PROJECT_DIR$" />
       <recent name="$PROJECT_DIR$/src/main/java/cn/edu/hust/until" />
     </key>
@@ -225,7 +319,7 @@
       </list>
     </option>
   </component>
-  <component name="RunManager">
+  <component name="RunManager" selected="Application.UserVisitAnalyze">
     <configuration default="true" type="Applet" factoryName="Applet">
       <option name="HTML_USED" value="false" />
       <option name="WIDTH" value="400" />
@@ -233,6 +327,25 @@
       <option name="POLICY_FILE" value="$APPLICATION_HOME_DIR$/bin/appletviewer.policy" />
       <module />
     </configuration>
+    <configuration name="UserVisitAnalyze" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
+      <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea">
+        <pattern>
+          <option name="PATTERN" value="cn.edu.hust.session.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <option name="MAIN_CLASS_NAME" value="cn.edu.hust.session.UserVisitAnalyze" />
+      <option name="VM_PARAMETERS" />
+      <option name="PROGRAM_PARAMETERS" />
+      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
+      <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
+      <option name="ALTERNATIVE_JRE_PATH" />
+      <option name="ENABLE_SWING_INSPECTOR" value="false" />
+      <option name="ENV_VARIABLES" />
+      <option name="PASS_PARENT_ENVS" value="true" />
+      <module name="UserActionAnalyzePlatform" />
+      <envs />
+    </configuration>
     <configuration default="true" type="Application" factoryName="Application">
       <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
       <option name="MAIN_CLASS_NAME" />
@@ -247,19 +360,94 @@
       <module name="" />
       <envs />
     </configuration>
-    <configuration name="ConfigurationManagerTest.getMethod" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+    <configuration name="FastJsonTest.test1" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea">
+        <pattern>
+          <option name="PATTERN" value="cn.edu.hust.json.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <module name="UserActionAnalyzePlatform" />
+      <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
+      <option name="ALTERNATIVE_JRE_PATH" />
+      <option name="PACKAGE_NAME" value="cn.edu.hust.json" />
+      <option name="MAIN_CLASS_NAME" value="cn.edu.hust.json.FastJsonTest" />
+      <option name="METHOD_NAME" value="test1" />
+      <option name="TEST_OBJECT" value="method" />
+      <option name="VM_PARAMETERS" value="-ea" />
+      <option name="PARAMETERS" />
+      <option name="WORKING_DIRECTORY" value="%MODULE_WORKING_DIR%" />
+      <option name="ENV_VARIABLES" />
+      <option name="PASS_PARENT_ENVS" value="true" />
+      <option name="TEST_SEARCH_SCOPE">
+        <value defaultName="singleModule" />
+      </option>
+      <envs />
+      <patterns />
+    </configuration>
+    <configuration name="JDBCHelperTest.testBatch" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
       <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea">
         <pattern>
-          <option name="PATTERN" value="cn.edu.hust.conf.*" />
+          <option name="PATTERN" value="cn.edu.hust.jdbc.*" />
           <option name="ENABLED" value="true" />
         </pattern>
       </extension>
       <module name="UserActionAnalyzePlatform" />
       <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
       <option name="ALTERNATIVE_JRE_PATH" />
-      <option name="PACKAGE_NAME" value="cn.edu.hust.conf" />
-      <option name="MAIN_CLASS_NAME" value="cn.edu.hust.conf.ConfigurationManagerTest" />
-      <option name="METHOD_NAME" value="getMethod" />
+      <option name="PACKAGE_NAME" value="cn.edu.hust.jdbc" />
+      <option name="MAIN_CLASS_NAME" value="cn.edu.hust.jdbc.JDBCHelperTest" />
+      <option name="METHOD_NAME" value="testBatch" />
+      <option name="TEST_OBJECT" value="method" />
+      <option name="VM_PARAMETERS" value="-ea" />
+      <option name="PARAMETERS" />
+      <option name="WORKING_DIRECTORY" value="%MODULE_WORKING_DIR%" />
+      <option name="ENV_VARIABLES" />
+      <option name="PASS_PARENT_ENVS" value="true" />
+      <option name="TEST_SEARCH_SCOPE">
+        <value defaultName="singleModule" />
+      </option>
+      <envs />
+      <patterns />
+    </configuration>
+    <configuration name="ParamUtilsTest.test2" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea">
+        <pattern>
+          <option name="PATTERN" value="cn.edu.hust.utils.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <module name="UserActionAnalyzePlatform" />
+      <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
+      <option name="ALTERNATIVE_JRE_PATH" />
+      <option name="PACKAGE_NAME" value="cn.edu.hust.utils" />
+      <option name="MAIN_CLASS_NAME" value="cn.edu.hust.utils.ParamUtilsTest" />
+      <option name="METHOD_NAME" value="test2" />
+      <option name="TEST_OBJECT" value="method" />
+      <option name="VM_PARAMETERS" value="-ea" />
+      <option name="PARAMETERS" />
+      <option name="WORKING_DIRECTORY" value="%MODULE_WORKING_DIR%" />
+      <option name="ENV_VARIABLES" />
+      <option name="PASS_PARENT_ENVS" value="true" />
+      <option name="TEST_SEARCH_SCOPE">
+        <value defaultName="singleModule" />
+      </option>
+      <envs />
+      <patterns />
+    </configuration>
+    <configuration name="TaskDaoTest.testDao" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea">
+        <pattern>
+          <option name="PATTERN" value="cn.edu.hust.dao.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <module name="UserActionAnalyzePlatform" />
+      <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
+      <option name="ALTERNATIVE_JRE_PATH" />
+      <option name="PACKAGE_NAME" value="cn.edu.hust.dao" />
+      <option name="MAIN_CLASS_NAME" value="cn.edu.hust.dao.TaskDaoTest" />
+      <option name="METHOD_NAME" value="testDao" />
       <option name="TEST_OBJECT" value="method" />
       <option name="VM_PARAMETERS" value="-ea" />
       <option name="PARAMETERS" />
@@ -332,9 +520,20 @@
       <option name="PROGRAM_PARAMETERS" />
       <predefined_log_file id="idea.log" enabled="true" />
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+    <list size="5">
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@@ -505,7 +831,6 @@
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+    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/factory/DaoFactory.java">
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+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/test/java/cn/edu/hust/json/FastJsonTest.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="133">
+          <caret line="7" column="13" lean-forward="false" selection-start-line="7" selection-start-column="13" selection-end-line="7" selection-end-column="13" />
+          <folding>
+            <element signature="imports" expanded="false" />
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+      </provider>
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+    </entry>
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+    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/dao/TaskDao.java">
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+    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/util/ParamUtils.java">
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+        <state />
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/README.md">
+      <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
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+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/session/SessionAggrStatAccumulator.java">
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+    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/util/DateUtils.java">
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+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/constant/Constants.java">
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+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java">
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   </component>
   <component name="masterDetails">
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diff --git a/README.md b/README.md
index 0c8134e..ab1e746 100644
--- a/README.md
+++ b/README.md
@@ -327,3 +327,6 @@ task_param：最最重要，用来使用JSON的格式，来封装用户提交的
 完成了数据调研、需求分析、技术方案设计、数据设计以后，正式进入编码实现和功能测试阶段。最后才是性能调优阶段。 
 
 
+## 用户访问Session的比较高端技术
+### 自定义Accumulator
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;使用自定义Accumulator降低维护成本，一个就可以搞定很多业务需求
\ No newline at end of file
diff --git a/UserActionAnalyzePlatform.iml b/UserActionAnalyzePlatform.iml
index 8c28597..6e9857d 100644
--- a/UserActionAnalyzePlatform.iml
+++ b/UserActionAnalyzePlatform.iml
@@ -12,7 +12,7 @@
     </content>
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" name="Maven: org.apache.spark:spark-core_2.10:1.6.1" level="project" />
+    <orderEntry type="library" name="Maven: org.apache.spark:spark-core_2.10:1.5.1" level="project" />
     <orderEntry type="library" name="Maven: org.apache.avro:avro-mapred:hadoop2:1.7.7" level="project" />
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     <orderEntry type="library" name="Maven: org.apache.avro:avro-ipc:tests:1.7.7" level="project" />
@@ -23,12 +23,10 @@
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-    <orderEntry type="library" name="Maven: org.apache.spark:spark-network-shuffle_2.10:1.6.1" level="project" />
-    <orderEntry type="library" name="Maven: org.fusesource.leveldbjni:leveldbjni-all:1.8" level="project" />
-    <orderEntry type="library" name="Maven: org.apache.spark:spark-unsafe_2.10:1.6.1" level="project" />
+    <orderEntry type="library" name="Maven: org.apache.spark:spark-launcher_2.10:1.5.1" level="project" />
+    <orderEntry type="library" name="Maven: org.apache.spark:spark-network-common_2.10:1.5.1" level="project" />
+    <orderEntry type="library" name="Maven: org.apache.spark:spark-network-shuffle_2.10:1.5.1" level="project" />
+    <orderEntry type="library" name="Maven: org.apache.spark:spark-unsafe_2.10:1.5.1" level="project" />
     <orderEntry type="library" name="Maven: net.java.dev.jets3t:jets3t:0.7.1" level="project" />
     <orderEntry type="library" name="Maven: org.apache.curator:curator-recipes:2.4.0" level="project" />
     <orderEntry type="library" name="Maven: org.apache.curator:curator-framework:2.4.0" level="project" />
@@ -44,9 +42,9 @@
     <orderEntry type="library" name="Maven: log4j:log4j:1.2.17" level="project" />
     <orderEntry type="library" name="Maven: org.slf4j:slf4j-log4j12:1.7.10" level="project" />
     <orderEntry type="library" name="Maven: com.ning:compress-lzf:1.0.3" level="project" />
-    <orderEntry type="library" name="Maven: org.xerial.snappy:snappy-java:1.1.2" level="project" />
+    <orderEntry type="library" name="Maven: org.xerial.snappy:snappy-java:1.1.1.7" level="project" />
     <orderEntry type="library" name="Maven: net.jpountz.lz4:lz4:1.3.0" level="project" />
-    <orderEntry type="library" name="Maven: org.roaringbitmap:RoaringBitmap:0.5.11" level="project" />
+    <orderEntry type="library" name="Maven: org.roaringbitmap:RoaringBitmap:0.4.5" level="project" />
     <orderEntry type="library" name="Maven: commons-net:commons-net:2.2" level="project" />
     <orderEntry type="library" name="Maven: com.typesafe.akka:akka-remote_2.10:2.3.11" level="project" />
     <orderEntry type="library" name="Maven: com.typesafe.akka:akka-actor_2.10:2.3.11" level="project" />
@@ -55,7 +53,7 @@
     <orderEntry type="library" name="Maven: com.google.protobuf:protobuf-java:2.5.0" level="project" />
     <orderEntry type="library" name="Maven: org.uncommons.maths:uncommons-maths:1.2.2a" level="project" />
     <orderEntry type="library" name="Maven: com.typesafe.akka:akka-slf4j_2.10:2.3.11" level="project" />
-    <orderEntry type="library" name="Maven: org.scala-lang:scala-library:2.10.5" level="project" />
+    <orderEntry type="library" name="Maven: org.scala-lang:scala-library:2.10.4" level="project" />
     <orderEntry type="library" name="Maven: org.json4s:json4s-jackson_2.10:3.2.10" level="project" />
     <orderEntry type="library" name="Maven: org.json4s:json4s-core_2.10:3.2.10" level="project" />
     <orderEntry type="library" name="Maven: org.json4s:json4s-ast_2.10:3.2.10" level="project" />
@@ -76,17 +74,17 @@
     <orderEntry type="library" name="Maven: com.thoughtworks.paranamer:paranamer:2.6" level="project" />
     <orderEntry type="library" name="Maven: org.apache.ivy:ivy:2.4.0" level="project" />
     <orderEntry type="library" name="Maven: oro:oro:2.0.8" level="project" />
-    <orderEntry type="library" name="Maven: org.tachyonproject:tachyon-client:0.8.2" level="project" />
+    <orderEntry type="library" name="Maven: org.tachyonproject:tachyon-client:0.7.1" level="project" />
     <orderEntry type="library" name="Maven: commons-lang:commons-lang:2.4" level="project" />
     <orderEntry type="library" name="Maven: commons-io:commons-io:2.4" level="project" />
-    <orderEntry type="library" name="Maven: org.tachyonproject:tachyon-underfs-hdfs:0.8.2" level="project" />
-    <orderEntry type="library" name="Maven: org.tachyonproject:tachyon-underfs-s3:0.8.2" level="project" />
-    <orderEntry type="library" name="Maven: org.tachyonproject:tachyon-underfs-local:0.8.2" level="project" />
-    <orderEntry type="library" name="Maven: net.razorvine:pyrolite:4.9" level="project" />
-    <orderEntry type="library" name="Maven: net.sf.py4j:py4j:0.9" level="project" />
+    <orderEntry type="library" name="Maven: org.apache.curator:curator-client:2.1.0-incubating" level="project" />
+    <orderEntry type="library" name="Maven: org.tachyonproject:tachyon-underfs-hdfs:0.7.1" level="project" />
+    <orderEntry type="library" name="Maven: org.tachyonproject:tachyon-underfs-local:0.7.1" level="project" />
+    <orderEntry type="library" name="Maven: net.razorvine:pyrolite:4.4" level="project" />
+    <orderEntry type="library" name="Maven: net.sf.py4j:py4j:0.8.2.1" level="project" />
     <orderEntry type="library" name="Maven: org.spark-project.spark:unused:1.0.0" level="project" />
-    <orderEntry type="library" name="Maven: org.apache.spark:spark-sql_2.10:1.6.1" level="project" />
-    <orderEntry type="library" name="Maven: org.apache.spark:spark-catalyst_2.10:1.6.1" level="project" />
+    <orderEntry type="library" name="Maven: org.apache.spark:spark-sql_2.10:1.5.1" level="project" />
+    <orderEntry type="library" name="Maven: org.apache.spark:spark-catalyst_2.10:1.5.1" level="project" />
     <orderEntry type="library" name="Maven: org.codehaus.janino:janino:2.7.8" level="project" />
     <orderEntry type="library" name="Maven: org.apache.parquet:parquet-column:1.7.0" level="project" />
     <orderEntry type="library" name="Maven: org.apache.parquet:parquet-common:1.7.0" level="project" />
@@ -95,11 +93,8 @@
     <orderEntry type="library" name="Maven: org.apache.parquet:parquet-hadoop:1.7.0" level="project" />
     <orderEntry type="library" name="Maven: org.apache.parquet:parquet-format:2.3.0-incubating" level="project" />
     <orderEntry type="library" name="Maven: org.apache.parquet:parquet-jackson:1.7.0" level="project" />
-    <orderEntry type="library" name="Maven: org.apache.spark:spark-hive_2.10:1.6.1" level="project" />
+    <orderEntry type="library" name="Maven: org.apache.spark:spark-hive_2.10:1.5.1" level="project" />
     <orderEntry type="library" name="Maven: com.twitter:parquet-hadoop-bundle:1.6.0" level="project" />
-    <orderEntry type="library" name="Maven: org.spark-project.hive:hive-cli:1.2.1.spark" level="project" />
-    <orderEntry type="library" name="Maven: commons-cli:commons-cli:1.2" level="project" />
-    <orderEntry type="library" name="Maven: jline:jline:2.12" level="project" />
     <orderEntry type="library" name="Maven: org.spark-project.hive:hive-exec:1.2.1.spark" level="project" />
     <orderEntry type="library" name="Maven: javolution:javolution:5.5.1" level="project" />
     <orderEntry type="library" name="Maven: log4j:apache-log4j-extras:1.2.17" level="project" />
@@ -114,8 +109,10 @@
     <orderEntry type="library" name="Maven: org.iq80.snappy:snappy:0.2" level="project" />
     <orderEntry type="library" name="Maven: stax:stax-api:1.0.1" level="project" />
     <orderEntry type="library" name="Maven: net.sf.opencsv:opencsv:2.3" level="project" />
+    <orderEntry type="library" name="Maven: jline:jline:2.12" level="project" />
     <orderEntry type="library" name="Maven: org.spark-project.hive:hive-metastore:1.2.1.spark" level="project" />
     <orderEntry type="library" name="Maven: com.jolbox:bonecp:0.8.0.RELEASE" level="project" />
+    <orderEntry type="library" name="Maven: commons-cli:commons-cli:1.2" level="project" />
     <orderEntry type="library" name="Maven: commons-logging:commons-logging:1.1.3" level="project" />
     <orderEntry type="library" name="Maven: org.apache.derby:derby:10.10.2.0" level="project" />
     <orderEntry type="library" name="Maven: org.datanucleus:datanucleus-api-jdo:3.2.6" level="project" />
@@ -135,12 +132,12 @@
     <orderEntry type="library" name="Maven: org.apache.httpcomponents:httpcore:4.3.1" level="project" />
     <orderEntry type="library" name="Maven: org.codehaus.jackson:jackson-mapper-asl:1.9.13" level="project" />
     <orderEntry type="library" name="Maven: commons-codec:commons-codec:1.10" level="project" />
-    <orderEntry type="library" name="Maven: joda-time:joda-time:2.9" level="project" />
+    <orderEntry type="library" name="Maven: joda-time:joda-time:2.5" level="project" />
     <orderEntry type="library" name="Maven: org.jodd:jodd-core:3.5.2" level="project" />
     <orderEntry type="library" name="Maven: org.datanucleus:datanucleus-core:3.2.10" level="project" />
     <orderEntry type="library" name="Maven: org.apache.thrift:libthrift:0.9.2" level="project" />
     <orderEntry type="library" name="Maven: org.apache.thrift:libfb303:0.9.2" level="project" />
-    <orderEntry type="library" name="Maven: org.apache.spark:spark-streaming_2.10:1.6.1" level="project" />
+    <orderEntry type="library" name="Maven: org.apache.spark:spark-streaming_2.10:1.5.1" level="project" />
     <orderEntry type="library" name="Maven: org.apache.hadoop:hadoop-client:2.6.4" level="project" />
     <orderEntry type="library" name="Maven: org.apache.hadoop:hadoop-common:2.6.4" level="project" />
     <orderEntry type="library" name="Maven: xmlenc:xmlenc:0.52" level="project" />
@@ -155,7 +152,6 @@
     <orderEntry type="library" name="Maven: org.apache.directory.server:apacheds-i18n:2.0.0-M15" level="project" />
     <orderEntry type="library" name="Maven: org.apache.directory.api:api-asn1-api:1.0.0-M20" level="project" />
     <orderEntry type="library" name="Maven: org.apache.directory.api:api-util:1.0.0-M20" level="project" />
-    <orderEntry type="library" name="Maven: org.apache.curator:curator-client:2.6.0" level="project" />
     <orderEntry type="library" name="Maven: org.htrace:htrace-core:3.0.4" level="project" />
     <orderEntry type="library" name="Maven: org.apache.hadoop:hadoop-hdfs:2.6.4" level="project" />
     <orderEntry type="library" name="Maven: org.mortbay.jetty:jetty-util:6.1.26" level="project" />
@@ -166,6 +162,7 @@
     <orderEntry type="library" name="Maven: org.apache.hadoop:hadoop-yarn-client:2.6.4" level="project" />
     <orderEntry type="library" name="Maven: org.apache.hadoop:hadoop-yarn-server-common:2.6.4" level="project" />
     <orderEntry type="library" name="Maven: org.apache.hadoop:hadoop-mapreduce-client-shuffle:2.6.4" level="project" />
+    <orderEntry type="library" name="Maven: org.fusesource.leveldbjni:leveldbjni-all:1.8" level="project" />
     <orderEntry type="library" name="Maven: org.apache.hadoop:hadoop-yarn-api:2.6.4" level="project" />
     <orderEntry type="library" name="Maven: org.apache.hadoop:hadoop-mapreduce-client-core:2.6.4" level="project" />
     <orderEntry type="library" name="Maven: org.apache.hadoop:hadoop-yarn-common:2.6.4" level="project" />
diff --git a/pom.xml b/pom.xml
index 276f6bd..9b55150 100644
--- a/pom.xml
+++ b/pom.xml
@@ -16,22 +16,22 @@
         <dependency>
             <groupId>org.apache.spark</groupId>
             <artifactId>spark-core_2.10</artifactId>
-            <version>1.6.1</version>
+            <version>1.5.1</version>
         </dependency>
         <dependency>
             <groupId>org.apache.spark</groupId>
             <artifactId>spark-sql_2.10</artifactId>
-            <version>1.6.1</version>
+            <version>1.5.1</version>
         </dependency>
         <dependency>
             <groupId>org.apache.spark</groupId>
             <artifactId>spark-hive_2.10</artifactId>
-            <version>1.6.1</version>
+            <version>1.5.1</version>
         </dependency>
         <dependency>
             <groupId>org.apache.spark</groupId>
             <artifactId>spark-streaming_2.10</artifactId>
-            <version>1.6.1</version>
+            <version>1.5.1</version>
         </dependency>
         <dependency>
             <groupId>org.apache.hadoop</groupId>
diff --git a/src/main/java/cn/edu/hust/conf/ConfigurationManager.java b/src/main/java/cn/edu/hust/conf/ConfigurationManager.java
index 355ca0d..dbae85b 100644
--- a/src/main/java/cn/edu/hust/conf/ConfigurationManager.java
+++ b/src/main/java/cn/edu/hust/conf/ConfigurationManager.java
@@ -35,4 +35,41 @@ public class ConfigurationManager {
     {
         return prop.getProperty(key);
     }
+
+    /**
+     * 获取整数变量
+     * @param key
+     * @return
+     */
+    public static Integer getInteger(String key)
+    {
+        String value=getProperty(key);
+        try
+        {
+            Integer result=Integer.valueOf(value);
+            return result;
+        }
+        catch (Exception e)
+        {
+
+            e.printStackTrace();
+        }
+        return 0;
+    }
+
+    /**
+     * 获取布尔型
+     * @param key
+     * @return
+     */
+    public static Boolean getBoolean(String key)
+    {
+        String value=getProperty(key);
+        if("false".equals(value))
+        {
+            return false;
+        }
+        return  true;
+    }
+
 }
diff --git a/src/main/java/cn/edu/hust/constant/Constants.java b/src/main/java/cn/edu/hust/constant/Constants.java
new file mode 100644
index 0000000..361b9b5
--- /dev/null
+++ b/src/main/java/cn/edu/hust/constant/Constants.java
@@ -0,0 +1,59 @@
+package cn.edu.hust.constant;
+
+public class Constants {
+    /**
+     * 项目配置常量
+     */
+    public static final String JDBC_DRIVER="jdbc.driver";
+    public static final String JDBC_URL="jdbc.url";
+    public static final String JDBC_USERNAME="jdbc.username";
+    public static final String JDBC_PSSWORD="jdbc.password";
+    public static final String JDBC_ACTIVE="jdbc.active";
+
+    /**
+     * Spark作业相关常量
+     */
+    public static final String APP_NAME_SESSION="UserVisitAnalyze";
+    public static final String SPARK_LOCAL="spark_local";
+    public static final String FIELD_SESSIONID="sessionId";
+    public static final String FIELD_SERACH_KEYWORDS="searchKeywords";
+    public static final String FIELD_CLICK_CATEGORYIDS="clickCategoryIds";
+    public static final String FIELD_AGE="age";
+    public static final String FIELD_CITY="city";
+    public static final String FIELD_SEX="sex";
+    public static final String FIELD_PROFESSIONAL="professional";
+    public static final String FIELD_VISIT_LENGTH="visitLength";
+    public static final String FIELD_STEP_LENGTH="stepLength";
+
+    /**
+     * Spark任务相关厂常量
+     */
+    public static final String PARAM_STARTTIME ="startDate";
+    public static final String PARAM_ENDTIME ="endDate";
+    public static final String PARAM_STARTAGE ="startAge";
+    public static final String PARAM_ENDAGE ="endAge";
+    public static final String PARAM_PROFESSONALS ="professionals";
+    public static final String PARAM_CIYTIES ="cities";
+    public static final String PARAM_SEX ="sex";
+    public static final String PARAM_SERACH_KEYWORDS="searchKeywords";
+    public static final String PARAM_CLICK_CATEGORYIDS="clickCategoryIds";
+
+    public static final String SESSION_COUNT = "session_count";
+    public static final String TIME_PERIOD_1s_3s = "1s_3s";
+    public static final String TIME_PERIOD_4s_6s = "4s_6s";
+    public static final String TIME_PERIOD_7s_9s = "7s_9s";
+    public static final String TIME_PERIOD_10s_30s = "10s_30s";
+    public static final String TIME_PERIOD_30s_60s = "30s_60s";
+    public static final String TIME_PERIOD_1m_3m = "1m_3m";
+    public static final String TIME_PERIOD_3m_10m = "3m_10m";
+    public static final String TIME_PERIOD_10m_30m = "10m_30m";
+    public static final String TIME_PERIOD_30m = "30m";
+
+    public static final String STEP_PERIOD_1_3 = "1_3";
+    public static final String STEP_PERIOD_4_6 = "4_6";
+    public static final String STEP_PERIOD_7_9 = "7_9";
+    public static final String STEP_PERIOD_10_30 = "10_30";
+    public static final String STEP_PERIOD_30_60 = "30_60";
+    public static final String STEP_PERIOD_60 = "60";
+
+}
diff --git a/src/main/java/cn/edu/hust/dao/TaskDao.java b/src/main/java/cn/edu/hust/dao/TaskDao.java
new file mode 100644
index 0000000..b96ec25
--- /dev/null
+++ b/src/main/java/cn/edu/hust/dao/TaskDao.java
@@ -0,0 +1,7 @@
+package cn.edu.hust.dao;
+
+import cn.edu.hust.domain.Task;
+
+public interface TaskDao {
+    Task findTaskById(Long id);
+}
diff --git a/src/main/java/cn/edu/hust/dao/factory/DaoFactory.java b/src/main/java/cn/edu/hust/dao/factory/DaoFactory.java
new file mode 100644
index 0000000..dc4cade
--- /dev/null
+++ b/src/main/java/cn/edu/hust/dao/factory/DaoFactory.java
@@ -0,0 +1,15 @@
+package cn.edu.hust.dao.factory;
+
+import cn.edu.hust.dao.TaskDao;
+import cn.edu.hust.dao.impl.TaskDaoImpl;
+
+public class DaoFactory {
+    /**
+     * 使用工厂模式
+     * @return
+     */
+    public static TaskDao getTaskDao()
+    {
+        return new TaskDaoImpl();
+    }
+}
diff --git a/src/main/java/cn/edu/hust/dao/impl/TaskDaoImpl.java b/src/main/java/cn/edu/hust/dao/impl/TaskDaoImpl.java
new file mode 100644
index 0000000..f8623d7
--- /dev/null
+++ b/src/main/java/cn/edu/hust/dao/impl/TaskDaoImpl.java
@@ -0,0 +1,38 @@
+package cn.edu.hust.dao.impl;
+
+import cn.edu.hust.dao.TaskDao;
+import cn.edu.hust.domain.Task;
+import cn.edu.hust.jdbc.JDBCHelper;
+
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+public class TaskDaoImpl implements TaskDao{
+    @Override
+    public Task findTaskById(Long id) {
+        String sql="select * from task where task_id=?";
+        final Task task=new Task();
+        JDBCHelper.getInstance().excuteQuery(sql, new Object[]{id}, new JDBCHelper.QueryCallBack() {
+            @Override
+            public void process(ResultSet rs) {
+                try {
+                    if(rs.next())
+                    {
+                        Long id=rs.getLong(1);
+                        String taskName=rs.getString(2);
+                        String createTime=rs.getString(3);
+                        String startTime=rs.getString(4);
+                        String finishTime=rs.getString(5);
+                        String taskType=rs.getString(6);
+                        String taskStatus=rs.getString(7);
+                        String taskParam=rs.getString(8);
+                        task.set(id,taskName,createTime,startTime,finishTime,taskType,taskStatus,taskParam);
+                    }
+                } catch (SQLException e) {
+                    e.printStackTrace();
+                }
+            }
+        });
+        return task;
+    }
+}
diff --git a/src/main/java/cn/edu/hust/demo/Singleton.java b/src/main/java/cn/edu/hust/demo/Singleton.java
new file mode 100644
index 0000000..900bb7a
--- /dev/null
+++ b/src/main/java/cn/edu/hust/demo/Singleton.java
@@ -0,0 +1,59 @@
+package cn.edu.hust.demo;
+
+/**
+ * 单例模式几种实现方式
+ */
+public class Singleton {
+
+    /**
+     * 饿汉模式实现单例模式，线程安全
+     */
+    /**
+    private static Singleton instance=new Singleton();
+    private Singleton()
+    {
+
+    }
+    public static Singleton getInstance()
+    {
+        return instance;
+    }*/
+
+    /**
+     * 懒汉模式实现单例模式 线程不安全的写法
+
+    private static Singleton instance=null;
+    private Singleton()
+    {
+
+    }
+    public static Singleton getInstance()
+    {
+        if(instance==null) instance=new Singleton();
+        return instance;
+    }*/
+
+    /**
+     * 懒汉模式线程安全的写法
+     */
+    private static Singleton instance=null;
+    private Singleton()
+    {
+
+    }
+    public static Singleton getInstance()
+    {
+        if(instance==null)
+        {
+            synchronized (Singleton.class)
+            {
+                if(instance==null)
+                {
+                    instance=new Singleton();
+                }
+            }
+
+        }
+        return instance;
+    }
+}
diff --git a/src/main/java/cn/edu/hust/domain/Task.java b/src/main/java/cn/edu/hust/domain/Task.java
new file mode 100644
index 0000000..bef5826
--- /dev/null
+++ b/src/main/java/cn/edu/hust/domain/Task.java
@@ -0,0 +1,92 @@
+package cn.edu.hust.domain;
+
+import java.io.Serializable;
+
+public class Task implements Serializable{
+    private Long taskId;
+    private String taskName;
+    private String createTime;
+    private String startTime;
+    private String finishTime;
+    private String taskType;
+    private String taskStatus;
+    private String taskParam;
+
+    public Task() {
+    }
+
+    public void set(Long taskId, String taskName, String createTime, String startTime, String finishTime, String taskType, String taskStatus, String taskParam) {
+        this.taskId = taskId;
+        this.taskName = taskName;
+        this.createTime = createTime;
+        this.startTime = startTime;
+        this.finishTime = finishTime;
+        this.taskType = taskType;
+        this.taskStatus = taskStatus;
+        this.taskParam = taskParam;
+    }
+
+    public Long getTaskId() {
+        return taskId;
+    }
+
+    public void setTaskId(Long taskId) {
+        this.taskId = taskId;
+    }
+
+    public String getTaskName() {
+        return taskName;
+    }
+
+    public void setTaskName(String taskName) {
+        this.taskName = taskName;
+    }
+
+    public String getCreateTime() {
+        return createTime;
+    }
+
+    public void setCreateTime(String createTime) {
+        this.createTime = createTime;
+    }
+
+    public String getStartTime() {
+        return startTime;
+    }
+
+    public void setStartTime(String startTime) {
+        this.startTime = startTime;
+    }
+
+    public String getFinishTime() {
+        return finishTime;
+    }
+
+    public void setFinishTime(String finishTime) {
+        this.finishTime = finishTime;
+    }
+
+    public String getTaskType() {
+        return taskType;
+    }
+
+    public void setTaskType(String taskType) {
+        this.taskType = taskType;
+    }
+
+    public String getTaskStatus() {
+        return taskStatus;
+    }
+
+    public void setTaskStatus(String taskStatus) {
+        this.taskStatus = taskStatus;
+    }
+
+    public String getTaskParam() {
+        return taskParam;
+    }
+
+    public void setTaskParam(String taskParam) {
+        this.taskParam = taskParam;
+    }
+}
diff --git a/src/main/java/cn/edu/hust/jdbc/JDBCHelper.java b/src/main/java/cn/edu/hust/jdbc/JDBCHelper.java
new file mode 100644
index 0000000..c414e52
--- /dev/null
+++ b/src/main/java/cn/edu/hust/jdbc/JDBCHelper.java
@@ -0,0 +1,195 @@
+package cn.edu.hust.jdbc;
+
+import cn.edu.hust.conf.ConfigurationManager;
+import cn.edu.hust.constant.Constants;
+
+import java.sql.*;
+import java.util.List;
+import java.util.concurrent.ArrayBlockingQueue;
+import java.util.concurrent.LinkedBlockingQueue;
+
+public class JDBCHelper {
+    private static JDBCHelper instance=new JDBCHelper();
+    //使用阻塞队列
+    private LinkedBlockingQueue<Connection> queue=new LinkedBlockingQueue<Connection>();
+    static{
+        try {
+            Class.forName(ConfigurationManager.getProperty(Constants.JDBC_DRIVER));
+        }
+        catch (Exception e)
+        {
+            e.printStackTrace();
+        }
+    }
+    /**
+     *  在构造函数创建数据库连接池
+     *  结合单例模式，确保数据库连接池单例
+     */
+    private JDBCHelper(){
+        int dataSourceSize=ConfigurationManager.getInteger(Constants.JDBC_ACTIVE);
+        String url=ConfigurationManager.getProperty(Constants.JDBC_URL);
+        String username=ConfigurationManager.getProperty(Constants.JDBC_USERNAME);
+        String passward=ConfigurationManager.getProperty(Constants.JDBC_PSSWORD);
+        try
+        {
+            for(int i=0;i<dataSourceSize;i++)
+            {
+                Connection connection=DriverManager.getConnection(url,username,passward);
+                queue.put(connection);
+            }
+        }
+        catch (Exception e)
+        {
+            e.printStackTrace();
+        }
+
+    };
+
+    public static JDBCHelper getInstance()
+    {
+        return instance;
+    }
+
+    /**
+     * 获取数据库连接
+     * 使用阻塞队列
+     * @return
+     */
+    public Connection getConnection()
+    {
+        try {
+            return queue.take();
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    /**
+     * 更新数据
+     * @param sql
+     * @param params
+     * @return
+     */
+    public int excuteUpdate(String sql,Object[] params)
+    {
+          int re=0;
+          Connection conn=null;
+          PreparedStatement statement=null;
+          try
+          {
+              conn=getConnection();
+              statement=conn.prepareStatement(sql);
+              for (int i = 0; i < params.length; i++) {
+                  statement.setObject(i+1,params[i]);
+              }
+              re=statement.executeUpdate();
+              return re;
+          }
+          catch (Exception e)
+          {
+              e.printStackTrace();
+          }
+          finally {
+
+              if(conn!=null)
+              {
+                  try {
+                      queue.put(conn);
+                  } catch (InterruptedException e) {
+                      e.printStackTrace();
+                  }
+              }
+          }
+          return  re;
+    }
+
+
+    public static interface QueryCallBack
+    {
+        void process(ResultSet rs);
+    }
+
+    /**
+     * 查询数据的处理
+     * 使用接口回掉，根据用户的自定义接口来进行处理
+     * @param sql
+     * @param params
+     * @param queryCallBack
+     */
+    public void excuteQuery(String sql,Object[] params,QueryCallBack queryCallBack)
+    {
+        Connection conn=null;
+        PreparedStatement statement=null;
+        try
+        {
+            conn=getConnection();
+            statement=conn.prepareStatement(sql);
+            for (int i = 0; i < params.length; i++) {
+                statement.setObject(i+1,params[i]);
+            }
+            ResultSet rs=statement.executeQuery();
+            queryCallBack.process(rs);
+        }catch (Exception e)
+        {
+
+        }
+        finally {
+            if(conn!=null)
+            {
+                try {
+                    queue.put(conn);
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+    /**
+     * 批量执行sql语句
+     * @param sql
+     * @param params
+     * @return
+     */
+    public int[] excuteBatch(String sql,List<Object[]> params)
+    {
+        Connection connection=null;
+        PreparedStatement statement=null;
+        int[] res=null;
+        try
+        {
+            connection=getConnection();
+            statement=connection.prepareStatement(sql);
+            //1.取消自动提交
+            connection.setAutoCommit(false);
+            //2.设置参数
+            for (Object[] param:
+                 params) {
+                for (int i = 0; i < param.length; i++) {
+                    statement.setObject(i+1,param[i]);
+                }
+                statement.addBatch();
+            }
+            //3.批量执行
+            res=statement.executeBatch();
+            //4.最后一步提交
+            connection.commit();
+            return res;
+
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+        finally {
+            if(connection!=null)
+            {
+                try {
+                    queue.put(connection);
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+        return res;
+    }
+}
diff --git a/src/main/java/cn/edu/hust/mockData/MockData.java b/src/main/java/cn/edu/hust/mockData/MockData.java
new file mode 100644
index 0000000..f6d6387
--- /dev/null
+++ b/src/main/java/cn/edu/hust/mockData/MockData.java
@@ -0,0 +1,147 @@
+package cn.edu.hust.mockData;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Random;
+import java.util.UUID;
+
+import cn.edu.hust.util.DateUtils;
+import cn.edu.hust.util.StringUtils;
+import org.apache.spark.api.java.JavaRDD;
+import org.apache.spark.api.java.JavaSparkContext;
+import org.apache.spark.sql.DataFrame;
+import org.apache.spark.sql.Row;
+import org.apache.spark.sql.RowFactory;
+import org.apache.spark.sql.SQLContext;
+import org.apache.spark.sql.types.DataTypes;
+import org.apache.spark.sql.types.StructType;
+
+
+/**
+ * 模拟数据程序
+ * @author Administrator
+ *
+ */
+public class MockData {
+
+	/**
+	 * 弄你数据
+	 * @param sc
+	 * @param sqlContext
+	 */
+	public static void mock(JavaSparkContext sc,
+			SQLContext sqlContext) {
+		List<Row> rows = new ArrayList<Row>();
+		
+		String[] searchKeywords = new String[] {"火锅", "蛋糕", "重庆辣子鸡", "重庆小面",
+				"呷哺呷哺", "新辣道鱼火锅", "国贸大厦", "太古商场", "日本料理", "温泉"};
+		String date = DateUtils.getTodayDate();
+		String[] actions = new String[]{"search", "click", "order", "pay"};
+		Random random = new Random();
+		
+		for(int i = 0; i < 100; i++) {
+			long userid = random.nextInt(100);    
+			
+			for(int j = 0; j < 10; j++) {
+				String sessionid = UUID.randomUUID().toString().replace("-", "");  
+				String baseActionTime = date + " " + random.nextInt(23);
+				  
+				for(int k = 0; k < random.nextInt(100); k++) {
+					long pageid = random.nextInt(10);    
+					String actionTime = baseActionTime + ":" + StringUtils.fulfuill(String.valueOf(random.nextInt(59))) + ":" + StringUtils.fulfuill(String.valueOf(random.nextInt(59)));
+					String searchKeyword = null;
+					Long clickCategoryId = null;
+					Long clickProductId = null;
+					String orderCategoryIds = null;
+					String orderProductIds = null;
+					String payCategoryIds = null;
+					String payProductIds = null;
+					
+					String action = actions[random.nextInt(4)];
+					if("search".equals(action)) {
+						searchKeyword = searchKeywords[random.nextInt(10)];   
+					} else if("click".equals(action)) {
+						clickCategoryId = Long.valueOf(String.valueOf(random.nextInt(100)));    
+						clickProductId = Long.valueOf(String.valueOf(random.nextInt(100)));  
+					} else if("order".equals(action)) {
+						orderCategoryIds = String.valueOf(random.nextInt(100));  
+						orderProductIds = String.valueOf(random.nextInt(100));
+					} else if("pay".equals(action)) {
+						payCategoryIds = String.valueOf(random.nextInt(100));  
+						payProductIds = String.valueOf(random.nextInt(100));
+					}
+					
+					Row row = RowFactory.create(date, userid, sessionid, 
+							pageid, actionTime, searchKeyword,
+							clickCategoryId, clickProductId,
+							orderCategoryIds, orderProductIds,
+							payCategoryIds, payProductIds);
+					rows.add(row);
+				}
+			}
+		}
+		
+		JavaRDD<Row> rowsRDD = sc.parallelize(rows);
+		
+		StructType schema = DataTypes.createStructType(Arrays.asList(
+				DataTypes.createStructField("date", DataTypes.StringType, true),
+				DataTypes.createStructField("user_id", DataTypes.LongType, true),
+				DataTypes.createStructField("session_id", DataTypes.StringType, true),
+				DataTypes.createStructField("page_id", DataTypes.LongType, true),
+				DataTypes.createStructField("action_time", DataTypes.StringType, true),
+				DataTypes.createStructField("search_keyword", DataTypes.StringType, true),
+				DataTypes.createStructField("click_category_id", DataTypes.LongType, true),
+				DataTypes.createStructField("click_product_id", DataTypes.LongType, true),
+				DataTypes.createStructField("order_category_ids", DataTypes.StringType, true),
+				DataTypes.createStructField("order_product_ids", DataTypes.StringType, true),
+				DataTypes.createStructField("pay_category_ids", DataTypes.StringType, true),
+				DataTypes.createStructField("pay_product_ids", DataTypes.StringType, true)));
+		
+		DataFrame df = sqlContext.createDataFrame(rowsRDD, schema);
+		
+		df.registerTempTable("user_visit_action");  
+		for(Row _row : df.take(1)) {
+			System.out.println(_row);  
+		}
+		
+		/**
+		 * ==================================================================
+		 */
+		
+		rows.clear();
+		String[] sexes = new String[]{"male", "female"};
+		for(int i = 0; i < 100; i ++) {
+			long userid = i;
+			String username = "user" + i;
+			String name = "name" + i;
+			int age = random.nextInt(60);
+			String professional = "professional" + random.nextInt(100);
+			String city = "city" + random.nextInt(100);
+			String sex = sexes[random.nextInt(2)];
+			
+			Row row = RowFactory.create(userid, username, name, age, 
+					professional, city, sex);
+			rows.add(row);
+		}
+		
+		rowsRDD = sc.parallelize(rows);
+		
+		StructType schema2 = DataTypes.createStructType(Arrays.asList(
+				DataTypes.createStructField("user_id", DataTypes.LongType, true),
+				DataTypes.createStructField("username", DataTypes.StringType, true),
+				DataTypes.createStructField("name", DataTypes.StringType, true),
+				DataTypes.createStructField("age", DataTypes.IntegerType, true),
+				DataTypes.createStructField("professional", DataTypes.StringType, true),
+				DataTypes.createStructField("city", DataTypes.StringType, true),
+				DataTypes.createStructField("sex", DataTypes.StringType, true)));
+		
+		DataFrame df2 = sqlContext.createDataFrame(rowsRDD, schema2);
+		for(Row _row : df2.take(1)) {
+			System.out.println(_row);  
+		}
+		
+		df2.registerTempTable("user_info");  
+	}
+	
+}
diff --git a/src/main/java/cn/edu/hust/session/SessionAggrStatAccumulator.java b/src/main/java/cn/edu/hust/session/SessionAggrStatAccumulator.java
new file mode 100644
index 0000000..ac54bce
--- /dev/null
+++ b/src/main/java/cn/edu/hust/session/SessionAggrStatAccumulator.java
@@ -0,0 +1,51 @@
+package cn.edu.hust.session;
+
+import cn.edu.hust.constant.Constants;
+import cn.edu.hust.util.StringUtils;
+import org.apache.spark.AccumulatorParam;
+
+public class SessionAggrStatAccumulator implements AccumulatorParam<String>{
+    @Override
+    public String addAccumulator(String s, String t1) {
+        return add(s,t1);
+    }
+
+
+    @Override
+    public String addInPlace(String s, String r1) {
+        return add(s,r1);
+    }
+
+    //主要用于数据的初始化，这里主要返回一个值就是所有范围区间得的数量
+    @Override
+    public String zero(String s) {
+        return Constants.SESSION_COUNT + "=0|"
+                + Constants.TIME_PERIOD_1s_3s + "=0|"
+                + Constants.TIME_PERIOD_4s_6s + "=0|"
+                + Constants.TIME_PERIOD_7s_9s + "=0|"
+                + Constants.TIME_PERIOD_10s_30s + "=0|"
+                + Constants.TIME_PERIOD_30s_60s + "=0|"
+                + Constants.TIME_PERIOD_1m_3m + "=0|"
+                + Constants.TIME_PERIOD_3m_10m + "=0|"
+                + Constants.TIME_PERIOD_10m_30m + "=0|"
+                + Constants.TIME_PERIOD_30m + "=0|"
+                + Constants.STEP_PERIOD_1_3 + "=0|"
+                + Constants.STEP_PERIOD_4_6 + "=0|"
+                + Constants.STEP_PERIOD_7_9 + "=0|"
+                + Constants.STEP_PERIOD_10_30 + "=0|"
+                + Constants.STEP_PERIOD_30_60 + "=0|"
+                + Constants.STEP_PERIOD_60 + "=0";
+    }
+
+    private String add(String v1,String v2)
+    {
+        if(StringUtils.isEmpty(v1)) return v2;
+        String value=StringUtils.getFieldFromConcatString(v1,"\\|",v2);
+        if(value!=null)
+        {
+            int newValue=Integer.valueOf(value)+1;
+            StringUtils.setFieldInConcatString(v1,"\\|",v2,String.valueOf(newValue));
+        }
+        return v1;
+    }
+}
diff --git a/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java b/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java
new file mode 100644
index 0000000..e03867b
--- /dev/null
+++ b/src/main/java/cn/edu/hust/session/UserVisitAnalyze.java
@@ -0,0 +1,352 @@
+package cn.edu.hust.session;
+
+import cn.edu.hust.conf.ConfigurationManager;
+import cn.edu.hust.constant.Constants;
+import cn.edu.hust.dao.TaskDao;
+import cn.edu.hust.dao.factory.DaoFactory;
+import cn.edu.hust.domain.Task;
+import cn.edu.hust.mockData.MockData;
+import cn.edu.hust.util.DateUtils;
+import cn.edu.hust.util.ParamUtils;
+import cn.edu.hust.util.StringUtils;
+import cn.edu.hust.util.ValidUtils;
+import com.alibaba.fastjson.JSONObject;
+import org.apache.spark.Accumulator;
+import org.apache.spark.AccumulatorParam;
+import org.apache.spark.SparkConf;
+import org.apache.spark.SparkContext;
+import org.apache.spark.api.java.JavaPairRDD;
+import org.apache.spark.api.java.JavaRDD;
+import org.apache.spark.api.java.JavaSparkContext;
+import org.apache.spark.api.java.function.Function;
+import org.apache.spark.api.java.function.PairFunction;
+import org.apache.spark.sql.DataFrame;
+import org.apache.spark.sql.Row;
+import org.apache.spark.sql.SQLContext;
+import org.apache.spark.sql.hive.HiveContext;
+import org.joda.time.DateTime;
+import scala.Tuple2;
+
+import java.util.Date;
+
+/**
+ * 用户可以查询的范围包含
+ * 1。用户的职业
+ * 2。用户的性别
+ * 3。用户城市
+ * 4。用户年龄
+ * 5。获取搜索词
+ * 6。获取点击品类
+ */
+public class UserVisitAnalyze {
+    public static void main(String[] args)
+    {
+        /**
+         * 构建spark上下文
+         */
+        SparkConf conf=new SparkConf().setAppName(Constants.APP_NAME_SESSION).setMaster("local[3]");
+        JavaSparkContext context=new JavaSparkContext(conf);
+        SQLContext sc=getSQLContext(context.sc());
+        //生成模拟数据
+        mock(context,sc);
+
+        //拿到相应的Dao组建
+        TaskDao dao= DaoFactory.getTaskDao();
+        //从外部传入的参数获取任务的id
+        Long taskId=ParamUtils.getTaskIdFromArgs(args);
+        //从数据库中查询出相应的task
+        Task task=dao.findTaskById(taskId);
+        JSONObject jsonObject=JSONObject.parseObject(task.getTaskParam());
+
+        //获取指定范围内的Sesssion
+        JavaRDD<Row> sessionRangeDate=getActionRDD(sc,jsonObject);
+        //按照Sesson进行聚合
+        JavaPairRDD<String,String> sesssionAggregateInfoRDD=aggregateBySessionId(sc,sessionRangeDate);
+
+        //通过条件对RDD进行筛选
+        // 重构，同时统计
+        Accumulator<String> sessionAggrStatAccumulator=context.accumulator("",new SessionAggrStatAccumulator());
+
+        JavaPairRDD<String,String> filteredSessionRDD=filterSessionAndAggrStat(sesssionAggregateInfoRDD,jsonObject,sessionAggrStatAccumulator);
+
+        //session聚合统计，统计出访问时长和访问步长的各个区间所占的比例
+        /**
+         * 重构实现的思路：
+         * 1。不要去生成任何的新RDD
+         * 2。不要去单独遍历一遍sesion的数据
+         * 3。可以在聚合数据的时候可以直接计算session的访问时长和访问步长
+         * 4。在以前的聚合操作中，可以在以前的基础上进行计算加上自己实现的Accumulator来进行一次性解决
+         * 开发Spark的经验准则
+         * 1。尽量少生成RDD
+         * 2。尽量少对RDD进行蒜子操作，如果可能，尽量在一个算子里面，实现多个需求功能
+         * 3。尽量少对RDD进行shuffle算子操作，比如groupBykey、reduceBykey、sortByKey
+         *         shuffle操作，会导致大量的磁盘读写，严重降低性能
+         *         有shuffle的算子，和没有shuffle的算子，甚至性能相差极大
+         *         有shuffle的算子，很容易造成性能倾斜，一旦数据倾斜，简直就是性能杀手
+         * 4。无论做什么功能，性能第一
+         *         在大数据项目中，性能最重要。主要是大数据以及大数据项目的特点，决定了大数据的程序和项目速度，都比较满
+         *         如果不考虑性能的话，就会导致一个大数据处理程序运行长达数个小时，甚至是数个小时，对用户的体验，简直是
+         *         一场灾难。
+         */
+
+        //关闭spark上下文
+        context.close();
+    }
+
+
+
+    /**
+     * 用于判断是否是生产环境
+     * @param sc
+     * @return
+     */
+    public static SQLContext getSQLContext(SparkContext sc)
+    {
+        boolean local= ConfigurationManager.getBoolean(Constants.SPARK_LOCAL);
+        if(local)
+        {
+            return new SQLContext(sc);
+        }
+        return new HiveContext(sc);
+    }
+
+    private static void mock(JavaSparkContext context,SQLContext sc)
+    {
+        boolean local= ConfigurationManager.getBoolean(Constants.SPARK_LOCAL);
+        if(local)
+        {
+            MockData.mock(context,sc);
+        }
+
+    }
+
+    /**
+     * 获取指定日期范围内的数据
+     * @param sc
+     * @param taskParam
+     * @return
+     */
+    private static JavaRDD<Row> getActionRDD(SQLContext sc, JSONObject taskParam)
+    {
+        String startTime=ParamUtils.getParam(taskParam,Constants.PARAM_STARTTIME);
+        String endTime=ParamUtils.getParam(taskParam,Constants.PARAM_ENDTIME);
+        String sql="select *from user_visit_action where date>='"+startTime+"' and date<='"+endTime+"'";
+        DataFrame df=sc.sql(sql);
+        return df.javaRDD();
+    }
+
+    private static JavaPairRDD<String,String> aggregateBySessionId(SQLContext sc, JavaRDD<Row> sessionRangeDate) {
+        /**
+         * 先将数据映射成map格式
+         */
+        JavaPairRDD<String,Row> sessionActionPair=sessionRangeDate.mapToPair(new PairFunction<Row, String,Row>() {
+            @Override
+            public Tuple2<String, Row> call(Row row) throws Exception {
+                return new Tuple2<String, Row>(row.getString(2),row);
+            }
+        });
+        /**
+         * 根据sessionId进行分组
+         */
+        JavaPairRDD<String,Iterable<Row>> sessionActionGrouped=sessionActionPair.groupByKey();
+
+        JavaPairRDD<Long,String> sessionPartInfo=sessionActionGrouped.mapToPair(new PairFunction<Tuple2<String, Iterable<Row>>, Long, String>() {
+            @Override
+            public Tuple2<Long, String> call(Tuple2<String, Iterable<Row>> stringIterableTuple2) throws Exception {
+                String sessionId=stringIterableTuple2._1;
+                Iterable<Row> rows=stringIterableTuple2._2;
+                StringBuffer searchKeywords=new StringBuffer();
+                StringBuffer clickCategoryIds=new StringBuffer();
+                Long userId=null;
+                Date startTime=null;
+                Date endTime=null;
+                int stepLength=0;
+                for (Row row:rows)
+                {
+                    if(userId==null)
+                        userId=row.getLong(1);
+                    String searchKeyword=row.getString(5);
+                    Long clickCategoryId=row.getLong(6);
+                    //判断是否需要拼接
+                    if(StringUtils.isNotEmpty(searchKeyword))
+                    {
+                        if(!searchKeywords.toString().contains(searchKeyword))
+                            searchKeywords.append(searchKeyword+",");
+                    }
+
+                    if(clickCategoryId!=null)
+                    {
+                        if(!clickCategoryId.toString().contains(String.valueOf(clickCategoryId)))
+                            clickCategoryIds.append(String.valueOf(clickCategoryId)+",");
+                    }
+
+                    //计算session开始时间和结束时间
+                    Date actionTime= DateUtils.parseTime(row.getString(4));
+                    if(startTime==null)
+                        startTime=actionTime;
+                    if(endTime==null)
+                        endTime=null;
+                    if(actionTime.before(startTime))
+                    {
+                        startTime=actionTime;
+                    }
+                    if(actionTime.after(endTime))
+                    {
+                        endTime=actionTime;
+                    }
+                        stepLength++;
+                }
+                //访问时长(s)
+                Long visitLengtth=(endTime.getTime()-startTime.getTime())/1000;
+
+                String searchKeywordsInfo=StringUtils.trimComma(searchKeywords.toString());
+                String clickCategoryIdsInfo=StringUtils.trimComma(clickCategoryIds.toString());
+                String info=Constants.FIELD_SESSIONID+"="+sessionId+"|"+Constants.FIELD_SERACH_KEYWORDS+"="+searchKeywordsInfo+"|"
+                        +Constants.FIELD_CLICK_CATEGORYIDS+"="+clickCategoryIdsInfo+Constants.FIELD_VISIT_LENGTH+"="+visitLengtth+"|"
+                        +Constants.FIELD_STEP_LENGTH+"="+stepLength;
+                return new Tuple2<Long, String>(userId,info);
+            }
+        });
+
+        //查询所有的用户数据
+         String sql="select * from user_info";
+         JavaRDD<Row> userInfoRDD=sc.sql(sql).javaRDD();
+         //将用户信息映射成map
+         JavaPairRDD<Long,Row> userInfoPariRDD=userInfoRDD.mapToPair(new PairFunction<Row, Long, Row>() {
+             @Override
+             public Tuple2<Long, Row> call(Row row) throws Exception {
+                 return new Tuple2<Long, Row>(row.getLong(0),row);
+             }
+         });
+         //将两个信息join在一起
+        JavaPairRDD<Long,Tuple2<String,Row>> tuple2JavaPairRDD=sessionPartInfo.join(userInfoPariRDD);
+
+        /**
+         * 拿到所需的session
+         */
+        JavaPairRDD<String,String> sessionInfo=tuple2JavaPairRDD.mapToPair(new PairFunction<Tuple2<Long,Tuple2<String,Row>>, String, String>() {
+            @Override
+            public Tuple2<String, String> call(Tuple2<Long, Tuple2<String, Row>> longTuple2Tuple2) throws Exception {
+                String sessionPartInfo=longTuple2Tuple2._2._1;
+                Row userInfo=longTuple2Tuple2._2._2;
+                //拿到需要的用户信息
+                int age=userInfo.getInt(3);
+                String professional=userInfo.getString(4);
+                String city=userInfo.getString(5);
+                String sex=userInfo.getString(6);
+                //拼接字符串
+                String fullInfo=sessionPartInfo+"|"+Constants.FIELD_AGE+"="+age+"|"
+                        +Constants.FIELD_PROFESSIONAL+"="+professional+"|"+Constants.FIELD_CITY+"="+city+"|"+Constants.FIELD_SEX+"="+sex;
+                String session=StringUtils.getFieldFromConcatString(sessionPartInfo,"\\|",Constants.FIELD_SESSIONID);
+                return new Tuple2<String, String>(session,fullInfo);
+            }
+        });
+
+        return sessionInfo;
+    }
+
+
+    /**
+     * 根据条件进行session的筛选
+     * @param sessionInfoRDD
+     * @param taskParam
+     * @param sessionAggrStatAccumulator
+     * @return
+     */
+    private static JavaPairRDD<String,String> filterSessionAndAggrStat(JavaPairRDD<String, String> sessionInfoRDD, final JSONObject taskParam, final Accumulator<String> sessionAggrStatAccumulator){
+        //得到条件
+        String startAge=ParamUtils.getParam(taskParam,Constants.PARAM_STARTAGE);
+        String endAge=ParamUtils.getParam(taskParam,Constants.PARAM_ENDAGE);
+        String professionals=ParamUtils.getParam(taskParam,Constants.PARAM_PROFESSONALS);
+        String cities=ParamUtils.getParam(taskParam,Constants.PARAM_CIYTIES);
+        String sex= ParamUtils.getParam(taskParam,Constants.PARAM_SEX);
+        String keyWords=ParamUtils.getParam(taskParam,Constants.PARAM_SERACH_KEYWORDS);
+        String categoryIds=ParamUtils.getParam(taskParam,Constants.PARAM_CLICK_CATEGORYIDS);
+
+        //拼接时间
+        String _paramter=(startAge!=null?Constants.PARAM_STARTAGE+"="+startAge+"|":"")+
+                (endAge!=null?Constants.PARAM_ENDAGE+"="+endAge+"|":"")+(professionals!=null?Constants.PARAM_PROFESSONALS+"="+professionals+"|":"")+
+                (cities!=null?Constants.PARAM_CIYTIES+"="+cities+"|":"")+(sex!=null?Constants.PARAM_SEX+"="+sex+"|":"")+
+                (keyWords!=null?Constants.PARAM_SERACH_KEYWORDS+"="+keyWords+"|":"")+(categoryIds!=null?Constants.PARAM_CLICK_CATEGORYIDS+"="+categoryIds+"|":"");
+
+
+        if(_paramter.endsWith("\\|"))
+            _paramter=_paramter.substring(0,_paramter.length()-1);
+
+        final String paramter=_paramter;
+
+        JavaPairRDD<String,String> filteredSessionRDD=sessionInfoRDD.filter(new Function<Tuple2<String, String>, Boolean>() {
+            @Override
+            public Boolean call(Tuple2<String, String> tuple2) throws Exception {
+                String sessionInfo=tuple2._2;
+                //按照条件进行过滤
+                //按照年龄进行过滤
+                if(!ValidUtils.between(sessionInfo,Constants.FIELD_AGE,paramter,Constants.PARAM_STARTAGE,Constants.PARAM_ENDAGE))
+                    return  false;
+                //按照职业进行过滤
+                if(!ValidUtils.in(sessionInfo,Constants.FIELD_PROFESSIONAL,paramter,Constants.PARAM_PROFESSONALS))
+                    return false;
+                //按照城市进行过滤
+                if(!ValidUtils.in(sessionInfo,Constants.FIELD_CITY,paramter,Constants.PARAM_CIYTIES))
+                    return false;
+                //按照性别进行筛选
+                if(!ValidUtils.equal(sessionInfo,Constants.FIELD_SEX,paramter,Constants.PARAM_SEX))
+                    return false;
+                //按照搜索词进行过滤，只要有一个搜索词即可
+                if(!ValidUtils.in(sessionInfo,Constants.FIELD_SERACH_KEYWORDS,paramter,Constants.PARAM_PROFESSONALS))
+                    return false;
+                if(!ValidUtils.in(sessionInfo,Constants.FIELD_CLICK_CATEGORYIDS,paramter,Constants.FIELD_CLICK_CATEGORYIDS))
+                    return false;
+                //如果经过了之前的所有的过滤条件，也就是满足用户筛选条件
+                sessionAggrStatAccumulator.add(Constants.SESSION_COUNT);
+                //计算出访问时长和访问步长的范围并进行相应的累加
+                Long visitLength=Long.valueOf(StringUtils.getFieldFromConcatString(sessionInfo,"\\|",Constants.FIELD_VISIT_LENGTH));
+                Long stepLength=Long.valueOf(StringUtils.getFieldFromConcatString(sessionInfo,"\\|",Constants.FIELD_STEP_LENGTH));
+                //使用函数进行统计
+                calculateVisitLength(visitLength);
+                calculateStepLength(stepLength);
+                return true;
+            }
+
+            //统计访问时长的数量
+            private void calculateVisitLength(Long visitLegth)
+            {
+                if(visitLegth>=1&&visitLegth<=3)
+                    sessionAggrStatAccumulator.add(Constants.TIME_PERIOD_1s_3s);
+                else if(visitLegth>=4&&visitLegth<=6)
+                    sessionAggrStatAccumulator.add(Constants.TIME_PERIOD_4s_6s);
+                else if(visitLegth>=7&&visitLegth<=9)
+                    sessionAggrStatAccumulator.add(Constants.TIME_PERIOD_7s_9s);
+                else if(visitLegth>=10&&visitLegth<=30)
+                    sessionAggrStatAccumulator.add(Constants.TIME_PERIOD_10s_30s);
+                else if(visitLegth>30&&visitLegth<=60)
+                    sessionAggrStatAccumulator.add(Constants.TIME_PERIOD_30s_60s);
+                else if(visitLegth>60&&visitLegth<=180)
+                    sessionAggrStatAccumulator.add(Constants.TIME_PERIOD_1m_3m);
+                else if(visitLegth>180&&visitLegth<=600)
+                    sessionAggrStatAccumulator.add(Constants.TIME_PERIOD_3m_10m);
+                else if(visitLegth>600&&visitLegth<=1800)
+                    sessionAggrStatAccumulator.add(Constants.TIME_PERIOD_10m_30m);
+                else if(visitLegth>1800)
+                    sessionAggrStatAccumulator.add(Constants.TIME_PERIOD_30m);
+            }
+            //统计访问步长的数量
+            private void calculateStepLength(Long stepLength)
+            {
+                if(stepLength>=1&&stepLength<=3)
+                    sessionAggrStatAccumulator.add(Constants.STEP_PERIOD_1_3);
+                else if(stepLength>=4&&stepLength<=6)
+                    sessionAggrStatAccumulator.add(Constants.STEP_PERIOD_4_6);
+                else if(stepLength>=7&&stepLength<=9)
+                    sessionAggrStatAccumulator.add(Constants.STEP_PERIOD_7_9);
+                else if(stepLength>=10&&stepLength<=30)
+                    sessionAggrStatAccumulator.add(Constants.STEP_PERIOD_10_30);
+                else if(stepLength>30&&stepLength<=60)
+                    sessionAggrStatAccumulator.add(Constants.STEP_PERIOD_30_60);
+                else if(stepLength>60)
+                sessionAggrStatAccumulator.add(Constants.STEP_PERIOD_60);
+            }
+        });
+        return filteredSessionRDD;
+    }
+}
diff --git a/src/main/java/cn/edu/hust/util/DateUtils.java b/src/main/java/cn/edu/hust/util/DateUtils.java
index 7f1292d..306f6e2 100644
--- a/src/main/java/cn/edu/hust/util/DateUtils.java
+++ b/src/main/java/cn/edu/hust/util/DateUtils.java
@@ -1,5 +1,6 @@
 package cn.edu.hust.util;
 
+import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.util.Calendar;
 import java.util.Date;
@@ -127,5 +128,15 @@ public class DateUtils {
 	public static String formatTime(Date date) {
 		return TIME_FORMAT.format(date);
 	}
+
+	public static Date parseTime(String time)
+	{
+		try {
+			return TIME_FORMAT.parse(time);
+		} catch (ParseException e) {
+			e.printStackTrace();
+		}
+		return null;
+	}
 	
 }
diff --git a/src/main/java/cn/edu/hust/util/StringUtils.java b/src/main/java/cn/edu/hust/util/StringUtils.java
index 76b8104..0919d52 100644
--- a/src/main/java/cn/edu/hust/util/StringUtils.java
+++ b/src/main/java/cn/edu/hust/util/StringUtils.java
@@ -64,10 +64,12 @@ public class StringUtils {
 			String delimiter, String field) {
 		String[] fields = str.split(delimiter);
 		for(String concatField : fields) {
-			String fieldName = concatField.split("=")[0];
-			String fieldValue = concatField.split("=")[1];
-			if(fieldName.equals(field)) {
-				return fieldValue;
+			if(concatField.split("=").length==2) {
+				String fieldName = concatField.split("=")[0];
+				String fieldValue = concatField.split("=")[1];
+				if (fieldName.equals(field)) {
+					return fieldValue;
+				}
 			}
 		}
 		return null;
diff --git a/src/main/resources/conf.properties b/src/main/resources/conf.properties
index f995a3b..97b31cb 100644
--- a/src/main/resources/conf.properties
+++ b/src/main/resources/conf.properties
@@ -1,2 +1,6 @@
-key1=value1
-key2=value2
\ No newline at end of file
+jdbc.driver=com.mysql.jdbc.Driver
+jdbc.url=jdbc:mysql://10.211.55.16:3306/BigDataPlatm?useUnicode=true&&characterEncoding=UTF-8
+jdbc.username=root
+jdbc.password=root
+jdbc.active=10
+spark.local=true;
diff --git a/src/test/java/cn/edu/hust/dao/TaskDaoTest.java b/src/test/java/cn/edu/hust/dao/TaskDaoTest.java
new file mode 100644
index 0000000..8709594
--- /dev/null
+++ b/src/test/java/cn/edu/hust/dao/TaskDaoTest.java
@@ -0,0 +1,14 @@
+package cn.edu.hust.dao;
+
+import cn.edu.hust.dao.factory.DaoFactory;
+import cn.edu.hust.domain.Task;
+import org.junit.Test;
+
+public class TaskDaoTest {
+    @Test
+    public void testDao()
+    {
+        Task task=DaoFactory.getTaskDao().findTaskById(1L);
+        System.out.println(task.getTaskName()+":"+task.getTaskParam());
+    };
+}
diff --git a/src/test/java/cn/edu/hust/jdbc/JDBCHelperTest.java b/src/test/java/cn/edu/hust/jdbc/JDBCHelperTest.java
new file mode 100644
index 0000000..dbcc9ae
--- /dev/null
+++ b/src/test/java/cn/edu/hust/jdbc/JDBCHelperTest.java
@@ -0,0 +1,49 @@
+package cn.edu.hust.jdbc;
+
+import org.junit.Test;
+
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.List;
+
+public class JDBCHelperTest {
+    @Test
+    public void testUpdate()
+    {
+        String sql="insert into user(username,age) values(?,?)";
+        Object[] params={"zhangsan",12};
+        JDBCHelper.getInstance().excuteUpdate(sql,params);
+    }
+
+
+    @Test
+    public void testBatch()
+    {
+        String sql="insert into user(username,age) values(?,?)";
+        List<Object[]> params=new ArrayList();
+        params.add(new Object[]{"lisi",23});
+        params.add(new Object[]{"wangwu",28});
+        JDBCHelper.getInstance().excuteBatch(sql,params);
+    }
+
+    @Test
+    public void testQuery()
+    {
+        String sql="select * from user where username=?";
+        Object[] params={"zhangsan"};
+        JDBCHelper.getInstance().excuteQuery(sql, params, new JDBCHelper.QueryCallBack() {
+            @Override
+            public void process(ResultSet rs) {
+                try {
+                    if(rs.next())
+                    {
+                        System.out.println("结果是"+rs.getInt(2));
+                    }
+                } catch (SQLException e) {
+                    e.printStackTrace();
+                }
+            }
+        });
+    }
+}
diff --git a/src/test/java/cn/edu/hust/json/FastJsonTest.java b/src/test/java/cn/edu/hust/json/FastJsonTest.java
new file mode 100644
index 0000000..e532d22
--- /dev/null
+++ b/src/test/java/cn/edu/hust/json/FastJsonTest.java
@@ -0,0 +1,17 @@
+package cn.edu.hust.json;
+
+import com.alibaba.fastjson.JSONArray;
+import org.junit.Test;
+
+public class FastJsonTest {
+    /**
+     * Json测试
+     */
+    @Test
+    public void test1()
+    {
+        String json="[{'name':'Tom','age':23},{'name':'LiLi','age':24}]";
+        JSONArray array=JSONArray.parseArray(json);
+        System.out.println(array.getJSONObject(0).get("name"));
+    }
+}
diff --git a/src/test/java/cn/edu/hust/utils/ParamUtilsTest.java b/src/test/java/cn/edu/hust/utils/ParamUtilsTest.java
new file mode 100644
index 0000000..215dd1a
--- /dev/null
+++ b/src/test/java/cn/edu/hust/utils/ParamUtilsTest.java
@@ -0,0 +1,16 @@
+package cn.edu.hust.utils;
+
+import cn.edu.hust.util.ParamUtils;
+import com.alibaba.fastjson.JSONObject;
+import org.junit.Test;
+
+public class ParamUtilsTest {
+    @Test
+    public void test2()
+    {
+        String json="{\"startAge\":[\"10\"],\"endAge\":[\"34\"],\"startDate\":[\"2018-06-22\"],\"endDate\":[\"2018-06-22\"]}";
+        JSONObject param=JSONObject.parseObject(json);
+        //param.getJSONArray("startAge");
+        System.out.println(ParamUtils.getParam(param,"startDate"));
+    }
+}
diff --git a/target/classes/conf.properties b/target/classes/conf.properties
index f995a3b..97b31cb 100644
--- a/target/classes/conf.properties
+++ b/target/classes/conf.properties
@@ -1,2 +1,6 @@
-key1=value1
-key2=value2
\ No newline at end of file
+jdbc.driver=com.mysql.jdbc.Driver
+jdbc.url=jdbc:mysql://10.211.55.16:3306/BigDataPlatm?useUnicode=true&&characterEncoding=UTF-8
+jdbc.username=root
+jdbc.password=root
+jdbc.active=10
+spark.local=true;