|
|
/*
|
|
|
* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
|
|
|
*
|
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
|
* you may not use this file except in compliance with the License.
|
|
|
* You may obtain a copy of the License at
|
|
|
*
|
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
|
*
|
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
|
* See the License for the specific language governing permissions and
|
|
|
* limitations under the License.
|
|
|
*/
|
|
|
|
|
|
package net.micode.notes.gtask.data;
|
|
|
|
|
|
import android.content.ContentResolver;
|
|
|
import android.content.ContentUris;
|
|
|
import android.content.ContentValues;
|
|
|
import android.content.Context;
|
|
|
import android.database.Cursor;
|
|
|
import android.net.Uri;
|
|
|
import android.util.Log;
|
|
|
|
|
|
import net.micode.notes.data.Notes;
|
|
|
import net.micode.notes.data.Notes.DataColumns;
|
|
|
import net.micode.notes.data.Notes.DataConstants;
|
|
|
import net.micode.notes.data.Notes.NoteColumns;
|
|
|
import net.micode.notes.data.NotesDatabaseHelper.TABLE;
|
|
|
import net.micode.notes.gtask.exception.ActionFailureException;
|
|
|
|
|
|
import org.json.JSONException;
|
|
|
import org.json.JSONObject;
|
|
|
|
|
|
|
|
|
/**
|
|
|
* 用于操作Sqlite数据库中的Data表
|
|
|
*/
|
|
|
public class SqlData {
|
|
|
private static final String TAG = SqlData.class.getSimpleName();
|
|
|
|
|
|
private static final int INVALID_ID = -99999;
|
|
|
|
|
|
public static final String[] PROJECTION_DATA = new String[] {
|
|
|
DataColumns.ID, DataColumns.MIME_TYPE, DataColumns.CONTENT, DataColumns.DATA1,
|
|
|
DataColumns.DATA3
|
|
|
};
|
|
|
|
|
|
public static final int DATA_ID_COLUMN = 0;
|
|
|
|
|
|
public static final int DATA_MIME_TYPE_COLUMN = 1;
|
|
|
|
|
|
public static final int DATA_CONTENT_COLUMN = 2;
|
|
|
|
|
|
public static final int DATA_CONTENT_DATA_1_COLUMN = 3;
|
|
|
|
|
|
public static final int DATA_CONTENT_DATA_3_COLUMN = 4;
|
|
|
|
|
|
private ContentResolver mContentResolver;
|
|
|
|
|
|
private boolean mIsCreate;
|
|
|
|
|
|
private long mDataId;
|
|
|
|
|
|
private String mDataMimeType;
|
|
|
|
|
|
private String mDataContent;
|
|
|
|
|
|
private long mDataContentData1;
|
|
|
|
|
|
private String mDataContentData3;
|
|
|
|
|
|
private ContentValues mDiffDataValues;
|
|
|
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* SqlData类，表示一个SQLite数据库表中的一行数据
|
|
|
*/
|
|
|
public class SqlData {
|
|
|
private static final String TAG = SqlData.class.getSimpleName();
|
|
|
|
|
|
private static final int INVALID_ID = -99999;
|
|
|
|
|
|
public static final String[] PROJECTION_DATA = new String[] {
|
|
|
DataColumns.ID, DataColumns.MIME_TYPE, DataColumns.CONTENT, DataColumns.DATA1,
|
|
|
DataColumns.DATA3
|
|
|
};
|
|
|
|
|
|
public static final int DATA_ID_COLUMN = 0;
|
|
|
|
|
|
public static final int DATA_MIME_TYPE_COLUMN = 1;
|
|
|
|
|
|
public static final int DATA_CONTENT_COLUMN = 2;
|
|
|
|
|
|
public static final int DATA_CONTENT_DATA_1_COLUMN = 3;
|
|
|
|
|
|
public static final int DATA_CONTENT_DATA_3_COLUMN = 4;
|
|
|
|
|
|
private ContentResolver mContentResolver;
|
|
|
|
|
|
private boolean mIsCreate;
|
|
|
|
|
|
private long mDataId;
|
|
|
|
|
|
private String mDataMimeType;
|
|
|
|
|
|
private String mDataContent;
|
|
|
|
|
|
private long mDataContentData1;
|
|
|
|
|
|
private String mDataContentData3;
|
|
|
|
|
|
private ContentValues mDiffDataValues;
|
|
|
|
|
|
/**
|
|
|
* 构造函数，创建一个新的SqlData对象
|
|
|
* @param context 上下文对象
|
|
|
*/
|
|
|
public SqlData(Context context) {
|
|
|
mContentResolver = context.getContentResolver();
|
|
|
mIsCreate = true;
|
|
|
mDataId = INVALID_ID;
|
|
|
mDataMimeType = DataConstants.NOTE;
|
|
|
mDataContent = "";
|
|
|
mDataContentData1 = 0;
|
|
|
mDataContentData3 = "";
|
|
|
mDiffDataValues = new ContentValues();
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 构造函数，创建一个新的SqlData对象，并从数据库查询结果Cursor中加载数据
|
|
|
* @param context 上下文对象
|
|
|
* @param c 查询结果Cursor对象
|
|
|
*/
|
|
|
public SqlData(Context context, Cursor c) {
|
|
|
mContentResolver = context.getContentResolver();
|
|
|
mIsCreate = false;
|
|
|
loadFromCursor(c);
|
|
|
mDiffDataValues = new ContentValues();
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 从查询结果Cursor对象中加载数据到当前SqlData对象中
|
|
|
* @param c 查询结果Cursor对象
|
|
|
*/
|
|
|
private void loadFromCursor(Cursor c) {
|
|
|
mDataId = c.getLong(DATA_ID_COLUMN);
|
|
|
mDataMimeType = c.getString(DATA_MIME_TYPE_COLUMN);
|
|
|
mDataContent = c.getString(DATA_CONTENT_COLUMN);
|
|
|
mDataContentData1 = c.getLong(DATA_CONTENT_DATA_1_COLUMN);
|
|
|
mDataContentData3 = c.getString(DATA_CONTENT_DATA_3_COLUMN);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 根据传入的JSON对象设置当前SqlData对象的各个属性值
|
|
|
* @param js JSON对象
|
|
|
* @throws JSONException 如果JSON对象不符合要求，则抛出JSONException异常
|
|
|
*/
|
|
|
/**
|
|
|
* 设置内容，根据给定的JSONObject对象进行设置
|
|
|
* @param js 包含需要设置的属性的JSONObject对象
|
|
|
* @throws JSONException 如果在解析JSONObject对象时出现异常，则抛出此异常
|
|
|
*/
|
|
|
public void setContent(JSONObject js) throws JSONException {
|
|
|
// 获取DataColumns.ID，如果不存在则设置为INVALID_ID
|
|
|
long dataId = js.has(DataColumns.ID) ? js.getLong(DataColumns.ID) : INVALID_ID;
|
|
|
// 如果mIsCreate为true或者mDataId与dataId不相等，则将DataColumns.ID添加到mDiffDataValues中
|
|
|
if (mIsCreate || mDataId != dataId) {
|
|
|
mDiffDataValues.put(DataColumns.ID, dataId);
|
|
|
}
|
|
|
mDataId = dataId;
|
|
|
|
|
|
// 获取DataColumns.MIME_TYPE，如果不存在则设置为DataConstants.NOTE
|
|
|
String dataMimeType = js.has(DataColumns.MIME_TYPE) ? js.getString(DataColumns.MIME_TYPE)
|
|
|
: DataConstants.NOTE;
|
|
|
// 如果mIsCreate为true或者mDataMimeType与dataMimeType不相等，则将DataColumns.MIME_TYPE添加到mDiffDataValues中
|
|
|
if (mIsCreate || !mDataMimeType.equals(dataMimeType)) {
|
|
|
mDiffDataValues.put(DataColumns.MIME_TYPE, dataMimeType);
|
|
|
}
|
|
|
mDataMimeType = dataMimeType;
|
|
|
|
|
|
// 获取DataColumns.CONTENT，如果不存在则设置为空字符串
|
|
|
String dataContent = js.has(DataColumns.CONTENT) ? js.getString(DataColumns.CONTENT) : "";
|
|
|
// 如果mIsCreate为true或者mDataContent与dataContent不相等，则将DataColumns.CONTENT添加到mDiffDataValues中
|
|
|
if (mIsCreate || !mDataContent.equals(dataContent)) {
|
|
|
mDiffDataValues.put(DataColumns.CONTENT, dataContent);
|
|
|
}
|
|
|
mDataContent = dataContent;
|
|
|
|
|
|
// 获取DataColumns.DATA1，如果不存在则设置为0
|
|
|
long dataContentData1 = js.has(DataColumns.DATA1) ? js.getLong(DataColumns.DATA1) : 0;
|
|
|
// 如果mIsCreate为true或者mDataContentData1与dataContentData1不相等，则将DataColumns.DATA1添加到mDiffDataValues中
|
|
|
if (mIsCreate || mDataContentData1 != dataContentData1) {
|
|
|
mDiffDataValues.put(DataColumns.DATA1, dataContentData1);
|
|
|
}
|
|
|
mDataContentData1 = dataContentData1;
|
|
|
|
|
|
// 获取DataColumns.DATA3，如果不存在则设置为空字符串
|
|
|
String dataContentData3 = js.has(DataColumns.DATA3) ? js.getString(DataColumns.DATA3) : "";
|
|
|
// 如果mIsCreate为true或者mDataContentData3与dataContentData3不相等，则将DataColumns.DATA3添加到mDiffDataValues中
|
|
|
if (mIsCreate || !mDataContentData3.equals(dataContentData3)) {
|
|
|
mDiffDataValues.put(DataColumns.DATA3, dataContentData3);
|
|
|
}
|
|
|
mDataContentData3 = dataContentData3;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
|
|
|
获取笔记内容的JSON对象
|
|
|
@return 笔记内容的JSON对象，如果该笔记还未在数据库中创建，则返回null
|
|
|
@throws JSONException 如果JSON操作出现异常，则抛出该异常
|
|
|
*/
|
|
|
public JSONObject getContent() throws JSONException {
|
|
|
if (mIsCreate) {
|
|
|
Log.e(TAG, "似乎该笔记尚未在数据库中创建");
|
|
|
return null;
|
|
|
}
|
|
|
JSONObject js = new JSONObject();
|
|
|
js.put(DataColumns.ID, mDataId);
|
|
|
js.put(DataColumns.MIME_TYPE, mDataMimeType);
|
|
|
js.put(DataColumns.CONTENT, mDataContent);
|
|
|
js.put(DataColumns.DATA1, mDataContentData1);
|
|
|
js.put(DataColumns.DATA3, mDataContentData3);
|
|
|
return js;
|
|
|
}
|
|
|
/**
|
|
|
|
|
|
提交数据更改
|
|
|
|
|
|
@param noteId 笔记ID
|
|
|
|
|
|
@param validateVersion 是否验证版本
|
|
|
|
|
|
@param version 版本号
|
|
|
|
|
|
@throws ActionFailureException 如果创建笔记失败，则抛出该异常
|
|
|
*/
|
|
|
public void commit(long noteId, boolean validateVersion, long version) throws ActionFailureException {
|
|
|
|
|
|
if (mIsCreate) {
|
|
|
if (mDataId == INVALID_ID && mDiffDataValues.containsKey(DataColumns.ID)) {
|
|
|
mDiffDataValues.remove(DataColumns.ID);
|
|
|
}
|
|
|
mDiffDataValues.put(DataColumns.NOTE_ID, noteId);
|
|
|
Uri uri = mContentResolver.insert(Notes.CONTENT_DATA_URI, mDiffDataValues);
|
|
|
try {
|
|
|
mDataId = Long.valueOf(uri.getPathSegments().get(1));
|
|
|
} catch (NumberFormatException e) {
|
|
|
Log.e(TAG, "获取笔记ID出错：" + e.toString());
|
|
|
throw new ActionFailureException("创建笔记失败");
|
|
|
}
|
|
|
} else {
|
|
|
if (mDiffDataValues.size() > 0) {
|
|
|
int result = 0;
|
|
|
if (!validateVersion) {
|
|
|
result = mContentResolver.update(ContentUris.withAppendedId(
|
|
|
Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues, null, null);
|
|
|
} else {
|
|
|
result = mContentResolver.update(ContentUris.withAppendedId(
|
|
|
Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues,
|
|
|
" ? in (SELECT " + NoteColumns.ID + " FROM " + TABLE.NOTE
|
|
|
+ " WHERE " + NoteColumns.VERSION + "=?)", new String[]{
|
|
|
String.valueOf(noteId), String.valueOf(version)
|
|
|
});
|
|
|
}
|
|
|
if (result == 0) {
|
|
|
Log.w(TAG, "没有更新。也许用户在同步时更新了笔记");
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
mDiffDataValues.clear();
|
|
|
mIsCreate = false;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
|
|
|
获取笔记ID
|
|
|
@return 笔记ID
|
|
|
*/
|
|
|
public long getId() {
|
|
|
return mDataId;
|
|
|
} |
