main
“zsy”
10 months ago
parent
7a872471ad
commit
51c2f4c9d0
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/*
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* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package net.micode.notes.data; // 包声明
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import android.content.Context; // 导入上下文
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import android.database.Cursor; // 导入游标
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import android.provider.ContactsContract.CommonDataKinds.Phone; // 导入电话数据类
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import android.provider.ContactsContract.Data; // 导入数据类
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import android.telephony.PhoneNumberUtils; // 导入电话号码工具
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import android.util.Log; // 导入日志
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import java.util.HashMap; // 导入哈希表
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// 联系人类
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public class Contact {
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private static HashMap<String, String> sContactCache; // 联系人缓存
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private static final String TAG = "Contact"; // 日志标签
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// 呼叫者ID选择条件
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private static final String CALLER_ID_SELECTION = "PHONE_NUMBERS_EQUAL(" + Phone.NUMBER
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+ ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'"
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+ " AND " + Data.RAW_CONTACT_ID + " IN "
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+ "(SELECT raw_contact_id "
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+ " FROM phone_lookup"
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+ " WHERE min_match = '+')";
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// 获取联系人名称
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public static String getContact(Context context, String phoneNumber) {
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// 初始化联系人缓存
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if(sContactCache == null) {
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sContactCache = new HashMap<String, String>(); // 创建新缓存
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}
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// 如果缓存中已有联系人，直接返回
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if(sContactCache.containsKey(phoneNumber)) {
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return sContactCache.get(phoneNumber); // 从缓存中获取联系人
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}
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// 替换选择条件中的“+”符号
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String selection = CALLER_ID_SELECTION.replace("+",
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PhoneNumberUtils.toCallerIDMinMatch(phoneNumber)); // 更新选择条件
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// 查询联系人数据
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Cursor cursor = context.getContentResolver().query(
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Data.CONTENT_URI, // 内容URI
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new String [] { Phone.DISPLAY_NAME }, // 查询的列
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selection, // 选择条件
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new String[] { phoneNumber }, // 选择参数
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null); // 排序
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// 处理查询结果
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if (cursor != null && cursor.moveToFirst()) {
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try {
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String name = cursor.getString(0); // 获取联系人名称
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sContactCache.put(phoneNumber, name); // 将名称存入缓存
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return name; // 返回联系人名称
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} catch (IndexOutOfBoundsException e) {
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Log.e(TAG, " Cursor get string error " + e.toString()); // 处理索引错误
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return null; // 返回null
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} finally {
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cursor.close(); // 关闭游标
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}
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} else {
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Log.d(TAG, "No contact matched with number:" + phoneNumber); // 无匹配联系人
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return null; // 返回null
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}
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}
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}
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@ -0,0 +1,348 @@
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/*
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* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package net.micode.notes.data;
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import android.content.ContentValues; // 导入内容值类
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import android.content.Context; // 导入上下文类
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import android.database.sqlite.SQLiteDatabase; // 导入SQLite数据库类
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import android.database.sqlite.SQLiteOpenHelper; // 导入SQLiteOpenHelper类
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import android.util.Log; // 导入日志类
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import net.micode.notes.data.Notes.DataColumns; // 导入数据列类
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import net.micode.notes.data.Notes.DataConstants; // 导入数据常量类
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import net.micode.notes.data.Notes.NoteColumns; // 导入笔记列类
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// 笔记数据库帮助类
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public class NotesDatabaseHelper extends SQLiteOpenHelper {
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private static final String DB_NAME = "note.db"; // 数据库名字
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private static final int DB_VERSION = 4; // 数据库版本号
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// 表名接口
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public interface TABLE {
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public static final String NOTE = "note"; // 笔记表名
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public static final String DATA = "data"; // 数据表名
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}
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private static final String TAG = "NotesDatabaseHelper"; // 日志标签
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private static NotesDatabaseHelper mInstance; // 单例实例
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// 创建笔记表的 SQL 语句
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private static final String CREATE_NOTE_TABLE_SQL =
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"CREATE TABLE " + TABLE.NOTE + "(" +
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NoteColumns.ID + " INTEGER PRIMARY KEY," +
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NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
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NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
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NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," +
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NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," +
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NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," +
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NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" +
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")";
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// 创建数据表的 SQL 语句
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private static final String CREATE_DATA_TABLE_SQL =
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"CREATE TABLE " + TABLE.DATA + "(" +
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DataColumns.ID + " INTEGER PRIMARY KEY," +
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DataColumns.MIME_TYPE + " TEXT NOT NULL," +
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DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
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NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
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DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," +
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DataColumns.DATA1 + " INTEGER," +
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DataColumns.DATA2 + " INTEGER," +
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DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," +
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DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," +
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DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" +
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")";
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// 创建数据表的 NOTE_ID 索引的 SQL 语句
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private static final String CREATE_DATA_NOTE_ID_INDEX_SQL =
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"CREATE INDEX IF NOT EXISTS note_id_index ON " +
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TABLE.DATA + "(" + DataColumns.NOTE_ID + ");";
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// 增加文件夹笔记计数的触发器 SQL 语句
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private static final String NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
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"CREATE TRIGGER increase_folder_count_on_update " +
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" AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
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" BEGIN " +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
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" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
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" END";
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// 减少文件夹笔记计数的触发器 SQL 语句
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private static final String NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
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"CREATE TRIGGER decrease_folder_count_on_update " +
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" AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
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" BEGIN " +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
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" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
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" AND " + NoteColumns.NOTES_COUNT + ">0" + ";" +
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" END";
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// 插入新笔记时增加文件夹笔记计数的触发器 SQL 语句
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private static final String NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER =
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"CREATE TRIGGER increase_folder_count_on_insert " +
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" AFTER INSERT ON " + TABLE.NOTE +
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" BEGIN " +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
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" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
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" END";
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// 从文件夹中删除笔记时减少文件夹笔记计数的触发器 SQL 语句
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private static final String NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER =
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"CREATE TRIGGER decrease_folder_count_on_delete " +
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" AFTER DELETE ON " + TABLE.NOTE +
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" BEGIN " +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
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" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
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" AND " + NoteColumns.NOTES_COUNT + ">0;" +
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" END";
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// 插入数据时更新笔记内容的触发器 SQL 语句
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private static final String DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER =
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"CREATE TRIGGER update_note_content_on_insert " +
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" AFTER INSERT ON " + TABLE.DATA +
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" WHEN new." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
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" BEGIN" +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
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" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
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" END";
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// 更新数据时更新笔记内容的触发器 SQL 语句
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private static final String DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER =
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"CREATE TRIGGER update_note_content_on_update " +
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" AFTER UPDATE ON " + TABLE.DATA +
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" WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
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" BEGIN" +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
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" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
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" END";
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// 删除数据时更新笔记内容的触发器 SQL 语句
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private static final String DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER =
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"CREATE TRIGGER update_note_content_on_delete " +
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" AFTER delete ON " + TABLE.DATA +
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" WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
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" BEGIN" +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.SNIPPET + "=''" +
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" WHERE " + NoteColumns.ID + "=old." + DataColumns.NOTE_ID + ";" +
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" END";
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// 删除已删除笔记的数据的触发器 SQL 语句
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private static final String NOTE_DELETE_DATA_ON_DELETE_TRIGGER =
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"CREATE TRIGGER delete_data_on_delete " +
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" AFTER DELETE ON " + TABLE.NOTE +
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" BEGIN" +
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" DELETE FROM " + TABLE.DATA +
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" WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" +
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" END";
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// 删除已删除文件夹中的笔记的触发器 SQL 语句
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private static final String FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER =
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"CREATE TRIGGER folder_delete_notes_on_delete " +
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" AFTER DELETE ON " + TABLE.NOTE +
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" BEGIN" +
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" DELETE FROM " + TABLE.NOTE +
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" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
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" END";
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// 移动到回收站文件夹的笔记的触发器 SQL 语句
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private static final String FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER =
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"CREATE TRIGGER folder_move_notes_on_trash " +
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" AFTER UPDATE ON " + TABLE.NOTE +
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" WHEN new." + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
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" BEGIN" +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
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" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
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" END";
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// 构造函数
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public NotesDatabaseHelper(Context context) {
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super(context, DB_NAME, null, DB_VERSION); // 调用父类构造函数
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}
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// 创建笔记表
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public void createNoteTable(SQLiteDatabase db) {
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db.execSQL(CREATE_NOTE_TABLE_SQL); // 执行创建笔记表的 SQL
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reCreateNoteTableTriggers(db); // 重新创建笔记表触发器
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createSystemFolder(db); // 创建系统文件夹
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Log.d(TAG, "note table has been created"); // 打印日志
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}
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// 重新创建笔记表触发器
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private void reCreateNoteTableTriggers(SQLiteDatabase db) {
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db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_update"); // 删除触发器
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db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_update"); // 删除触发器
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db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_delete"); // 删除触发器
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db.execSQL("DROP TRIGGER IF EXISTS delete_data_on_delete"); // 删除触发器
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db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_insert"); // 删除触发器
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db.execSQL("DROP TRIGGER IF EXISTS folder_delete_notes_on_delete"); // 删除触发器
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db.execSQL("DROP TRIGGER IF EXISTS folder_move_notes_on_trash"); // 删除触发器
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db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER); // 创建触发器
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db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER); // 创建触发器
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db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER); // 创建触发器
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db.execSQL(NOTE_DELETE_DATA_ON_DELETE_TRIGGER); // 创建触发器
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db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER); // 创建触发器
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db.execSQL(FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER); // 创建触发器
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db.execSQL(FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER); // 创建触发器
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}
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// 创建系统文件夹
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private void createSystemFolder(SQLiteDatabase db) {
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ContentValues values = new ContentValues(); // 创建内容值对象
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// 通话记录文件夹的记录
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values.put(NoteColumns.ID, Notes.ID_CALL_RECORD_FOLDER);
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values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); // 系统类型
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db.insert(TABLE.NOTE, null, values); // 插入到笔记表
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// 默认根文件夹
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values.clear(); // 清空内容值对象
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values.put(NoteColumns.ID, Notes.ID_ROOT_FOLDER);
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values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); // 系统类型
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db.insert(TABLE.NOTE, null, values); // 插入到笔记表
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// 临时文件夹用于移动笔记
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values.clear(); // 清空内容值对象
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values.put(NoteColumns.ID, Notes.ID_TEMPARAY_FOLDER);
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values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); // 系统类型
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db.insert(TABLE.NOTE, null, values); // 插入到笔记表
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// 创建回收站文件夹
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values.clear(); // 清空内容值对象
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values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER);
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values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); // 系统类型
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db.insert(TABLE.NOTE, null, values); // 插入到笔记表
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}
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// 创建数据表
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public void createDataTable(SQLiteDatabase db) {
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db.execSQL(CREATE_DATA_TABLE_SQL); // 执行创建数据表的 SQL
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reCreateDataTableTriggers(db); // 重新创建数据表触发器
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db.execSQL(CREATE_DATA_NOTE_ID_INDEX_SQL); // 创建数据表索引
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Log.d(TAG, "data table has been created"); // 打印日志
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}
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// 重新创建数据表触发器
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private void reCreateDataTableTriggers(SQLiteDatabase db) {
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db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_insert"); // 删除触发器
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db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_update"); // 删除触发器
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db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_delete"); // 删除触发器
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db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER); // 创建触发器
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db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER); // 创建触发器
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db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER); // 创建触发器
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}
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// 获取单例实例
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static synchronized NotesDatabaseHelper getInstance(Context context) {
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if (mInstance == null) { // 如果实例为空
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mInstance = new NotesDatabaseHelper(context); // 创建新实例
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}
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return mInstance; // 返回实例
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}
|
||||
|
||||
@Override
|
||||
public void onCreate(SQLiteDatabase db) {
|
||||
createNoteTable(db); // 创建笔记表
|
||||
createDataTable(db); // 创建数据表
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
|
||||
boolean reCreateTriggers = false; // 触发器是否需要重建
|
||||
boolean skipV2 = false; // 是否跳过 V2 升级
|
||||
|
||||
if (oldVersion == 1) {
|
||||
upgradeToV2(db); // 升级到 V2
|
||||
skipV2 = true; // 标记为跳过 V2 升级
|
||||
oldVersion++; // 增加版本号
|
||||
}
|
||||
|
||||
if (oldVersion == 2 && !skipV2) {
|
||||
upgradeToV3(db); // 升级到 V3
|
||||
reCreateTriggers = true; // 标记为需要重建触发器
|
||||
oldVersion++; // 增加版本号
|
||||
}
|
||||
|
||||
if (oldVersion == 3) {
|
||||
upgradeToV4(db); // 升级到 V4
|
||||
oldVersion++; // 增加版本号
|
||||
}
|
||||
|
||||
if (reCreateTriggers) {
|
||||
reCreateNoteTableTriggers(db); // 重新创建笔记表触发器
|
||||
reCreateDataTableTriggers(db); // 重新创建数据表触发器
|
||||
}
|
||||
|
||||
if (oldVersion != newVersion) {
|
||||
throw new IllegalStateException("Upgrade notes database to version " + newVersion
|
||||
+ " fails"); // 抛出异常
|
||||
}
|
||||
}
|
||||
|
||||
// 升级到 V2
|
||||
private void upgradeToV2(SQLiteDatabase db) {
|
||||
db.execSQL("DROP TABLE IF EXISTS " + TABLE.NOTE); // 删除笔记表
|
||||
db.execSQL("DROP TABLE IF EXISTS " + TABLE.DATA); // 删除数据表
|
||||
createNoteTable(db); // 创建笔记表
|
||||
createDataTable(db); // 创建数据表
|
||||
}
|
||||
|
||||
// 升级到 V3
|
||||
private void upgradeToV3(SQLiteDatabase db) {
|
||||
// 删除未使用的触发器
|
||||
db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_insert");
|
||||
db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_delete");
|
||||
db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_update");
|
||||
// 添加 gtask id 列
|
||||
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.GTASK_ID
|
||||
+ " TEXT NOT NULL DEFAULT ''");
|
||||
// 添加回收站系统文件夹
|
||||
ContentValues values = new ContentValues(); // 创建内容值对象
|
||||
values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER); // 设置文件夹 ID
|
||||
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); // 系统类型
|
||||
db.insert(TABLE.NOTE, null, values); // 插入到笔记表
|
||||
}
|
||||
|
||||
// 升级到 V4
|
||||
private void upgradeToV4(SQLiteDatabase db) {
|
||||
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION
|
||||
+ " INTEGER NOT NULL DEFAULT 0"); // 添加版本列
|
||||
}
|
||||
}
|
||||
Loading…
Reference in new issue