|
|
/*
|
|
|
* 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.tool;
|
|
|
|
|
|
import android.content.Context;
|
|
|
import android.database.Cursor;
|
|
|
import android.os.Environment;
|
|
|
import android.text.TextUtils;
|
|
|
import android.text.format.DateFormat;
|
|
|
import android.util.Log;
|
|
|
|
|
|
import net.micode.notes.R;
|
|
|
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 java.io.File;
|
|
|
import java.io.FileNotFoundException;
|
|
|
import java.io.FileOutputStream;
|
|
|
import java.io.IOException;
|
|
|
import java.io.PrintStream;
|
|
|
|
|
|
/**
|
|
|
* 备份工具类，用于将笔记数据导出为文本文件
|
|
|
*/
|
|
|
public class BackupUtils {
|
|
|
private static final String TAG = "BackupUtils";
|
|
|
// 单例模式相关
|
|
|
private static BackupUtils sInstance;
|
|
|
|
|
|
/**
|
|
|
* 获取BackupUtils实例（单例模式）
|
|
|
* @param context 上下文对象
|
|
|
* @return BackupUtils实例
|
|
|
*/
|
|
|
public static synchronized BackupUtils getInstance(Context context) {
|
|
|
if (sInstance == null) {
|
|
|
sInstance = new BackupUtils(context);
|
|
|
}
|
|
|
return sInstance;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 定义备份或恢复操作的状态码
|
|
|
*/
|
|
|
// SD卡未挂载
|
|
|
public static final int STATE_SD_CARD_UNMOUONTED = 0;
|
|
|
// 备份文件不存在
|
|
|
public static final int STATE_BACKUP_FILE_NOT_EXIST = 1;
|
|
|
// 数据被破坏（可能被其他程序修改）
|
|
|
public static final int STATE_DATA_DESTROIED = 2;
|
|
|
// 系统错误导致备份或恢复失败
|
|
|
public static final int STATE_SYSTEM_ERROR = 3;
|
|
|
// 备份或恢复成功
|
|
|
public static final int STATE_SUCCESS = 4;
|
|
|
|
|
|
private TextExport mTextExport; // 文本导出工具
|
|
|
|
|
|
/**
|
|
|
* 私有构造函数
|
|
|
* @param context 上下文对象
|
|
|
*/
|
|
|
private BackupUtils(Context context) {
|
|
|
mTextExport = new TextExport(context);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 检查外部存储是否可用
|
|
|
* @return 外部存储是否可用
|
|
|
*/
|
|
|
private static boolean externalStorageAvailable() {
|
|
|
return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 导出数据到文本文件
|
|
|
* @return 操作状态码
|
|
|
*/
|
|
|
public int exportToText() {
|
|
|
return mTextExport.exportToText();
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 获取导出的文本文件名
|
|
|
* @return 文件名
|
|
|
*/
|
|
|
public String getExportedTextFileName() {
|
|
|
return mTextExport.mFileName;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 获取导出的文本文件目录
|
|
|
* @return 文件目录
|
|
|
*/
|
|
|
public String getExportedTextFileDir() {
|
|
|
return mTextExport.mFileDirectory;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 内部类：文本导出工具
|
|
|
*/
|
|
|
private static class TextExport {
|
|
|
// 笔记查询的列名数组
|
|
|
private static final String[] NOTE_PROJECTION = {
|
|
|
NoteColumns.ID,
|
|
|
NoteColumns.MODIFIED_DATE,
|
|
|
NoteColumns.SNIPPET,
|
|
|
NoteColumns.TYPE
|
|
|
};
|
|
|
|
|
|
// 笔记ID列索引
|
|
|
private static final int NOTE_COLUMN_ID = 0;
|
|
|
// 笔记修改日期列索引
|
|
|
private static final int NOTE_COLUMN_MODIFIED_DATE = 1;
|
|
|
// 笔记片段列索引
|
|
|
private static final int NOTE_COLUMN_SNIPPET = 2;
|
|
|
|
|
|
// 数据查询的列名数组
|
|
|
private static final String[] DATA_PROJECTION = {
|
|
|
DataColumns.CONTENT,
|
|
|
DataColumns.MIME_TYPE,
|
|
|
DataColumns.DATA1,
|
|
|
DataColumns.DATA2,
|
|
|
DataColumns.DATA3,
|
|
|
DataColumns.DATA4,
|
|
|
};
|
|
|
|
|
|
// 数据内容列索引
|
|
|
private static final int DATA_COLUMN_CONTENT = 0;
|
|
|
// MIME类型列索引
|
|
|
private static final int DATA_COLUMN_MIME_TYPE = 1;
|
|
|
// 通话日期列索引
|
|
|
private static final int DATA_COLUMN_CALL_DATE = 2;
|
|
|
// 电话号码列索引
|
|
|
private static final int DATA_COLUMN_PHONE_NUMBER = 4;
|
|
|
|
|
|
// 文本格式数组（从资源文件中获取）
|
|
|
private final String [] TEXT_FORMAT;
|
|
|
// 文本格式索引常量
|
|
|
private static final int FORMAT_FOLDER_NAME = 0; // 文件夹名称格式
|
|
|
private static final int FORMAT_NOTE_DATE = 1; // 笔记日期格式
|
|
|
private static final int FORMAT_NOTE_CONTENT = 2; // 笔记内容格式
|
|
|
|
|
|
private Context mContext; // 上下文对象
|
|
|
private String mFileName; // 导出文件名
|
|
|
private String mFileDirectory; // 导出文件目录
|
|
|
|
|
|
/**
|
|
|
* 构造函数
|
|
|
* @param context 上下文对象
|
|
|
*/
|
|
|
public TextExport(Context context) {
|
|
|
// 从资源文件中获取文本格式
|
|
|
TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note);
|
|
|
mContext = context;
|
|
|
mFileName = "";
|
|
|
mFileDirectory = "";
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 获取指定格式的文本
|
|
|
* @param id 格式索引
|
|
|
* @return 格式文本
|
|
|
*/
|
|
|
private String getFormat(int id) {
|
|
|
return TEXT_FORMAT[id];
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 将指定文件夹的笔记导出为文本
|
|
|
* @param folderId 文件夹ID
|
|
|
* @param ps 打印流
|
|
|
*/
|
|
|
private void exportFolderToText(String folderId, PrintStream ps) {
|
|
|
// 查询属于该文件夹的所有笔记
|
|
|
Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI,
|
|
|
NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] {
|
|
|
folderId
|
|
|
}, null);
|
|
|
|
|
|
if (notesCursor != null) {
|
|
|
if (notesCursor.moveToFirst()) {
|
|
|
do {
|
|
|
// 打印笔记的最后修改日期
|
|
|
ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
|
|
|
mContext.getString(R.string.format_datetime_mdhm),
|
|
|
notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)));
|
|
|
// 查询属于该笔记的所有数据
|
|
|
String noteId = notesCursor.getString(NOTE_COLUMN_ID);
|
|
|
exportNoteToText(noteId, ps);
|
|
|
} while (notesCursor.moveToNext());
|
|
|
}
|
|
|
notesCursor.close();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 将指定笔记导出为文本
|
|
|
* @param noteId 笔记ID
|
|
|
* @param ps 打印流
|
|
|
*/
|
|
|
private void exportNoteToText(String noteId, PrintStream ps) {
|
|
|
Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI,
|
|
|
DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] {
|
|
|
noteId
|
|
|
}, null);
|
|
|
|
|
|
if (dataCursor != null) {
|
|
|
if (dataCursor.moveToFirst()) {
|
|
|
do {
|
|
|
String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE);
|
|
|
if (DataConstants.CALL_NOTE.equals(mimeType)) {
|
|
|
// 打印电话号码
|
|
|
String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER);
|
|
|
long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE);
|
|
|
String location = dataCursor.getString(DATA_COLUMN_CONTENT);
|
|
|
|
|
|
if (!TextUtils.isEmpty(phoneNumber)) {
|
|
|
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
|
|
|
phoneNumber));
|
|
|
}
|
|
|
// 打印通话日期
|
|
|
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat
|
|
|
.format(mContext.getString(R.string.format_datetime_mdhm),
|
|
|
callDate)));
|
|
|
// 打印通话附件位置
|
|
|
if (!TextUtils.isEmpty(location)) {
|
|
|
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
|
|
|
location));
|
|
|
}
|
|
|
} else if (DataConstants.NOTE.equals(mimeType)) {
|
|
|
String content = dataCursor.getString(DATA_COLUMN_CONTENT);
|
|
|
if (!TextUtils.isEmpty(content)) {
|
|
|
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
|
|
|
content));
|
|
|
}
|
|
|
}
|
|
|
} while (dataCursor.moveToNext());
|
|
|
}
|
|
|
dataCursor.close();
|
|
|
}
|
|
|
// 在笔记之间打印分隔线
|
|
|
try {
|
|
|
ps.write(new byte[] {
|
|
|
Character.LINE_SEPARATOR, Character.LETTER_NUMBER
|
|
|
});
|
|
|
} catch (IOException e) {
|
|
|
Log.e(TAG, e.toString());
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 将笔记导出为用户可读的文本文件
|
|
|
* @return 操作状态码
|
|
|
*/
|
|
|
public int exportToText() {
|
|
|
// 检查SD卡是否可用
|
|
|
if (!externalStorageAvailable()) {
|
|
|
Log.d(TAG, "Media was not mounted");
|
|
|
return STATE_SD_CARD_UNMOUONTED;
|
|
|
}
|
|
|
|
|
|
// 获取打印流
|
|
|
PrintStream ps = getExportToTextPrintStream();
|
|
|
if (ps == null) {
|
|
|
Log.e(TAG, "get print stream error");
|
|
|
return STATE_SYSTEM_ERROR;
|
|
|
}
|
|
|
|
|
|
// 首先导出文件夹及其笔记
|
|
|
Cursor folderCursor = mContext.getContentResolver().query(
|
|
|
Notes.CONTENT_NOTE_URI,
|
|
|
NOTE_PROJECTION,
|
|
|
"(" + NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + " AND "
|
|
|
+ NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + ") OR "
|
|
|
+ NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER, null, null);
|
|
|
|
|
|
if (folderCursor != null) {
|
|
|
if (folderCursor.moveToFirst()) {
|
|
|
do {
|
|
|
// 打印文件夹名称
|
|
|
String folderName = "";
|
|
|
if(folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) {
|
|
|
folderName = mContext.getString(R.string.call_record_folder_name);
|
|
|
} else {
|
|
|
folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET);
|
|
|
}
|
|
|
if (!TextUtils.isEmpty(folderName)) {
|
|
|
ps.println(String.format(getFormat(FORMAT_FOLDER_NAME), folderName));
|
|
|
}
|
|
|
String folderId = folderCursor.getString(NOTE_COLUMN_ID);
|
|
|
exportFolderToText(folderId, ps);
|
|
|
} while (folderCursor.moveToNext());
|
|
|
}
|
|
|
folderCursor.close();
|
|
|
}
|
|
|
|
|
|
// 导出根文件夹中的笔记
|
|
|
Cursor noteCursor = mContext.getContentResolver().query(
|
|
|
Notes.CONTENT_NOTE_URI,
|
|
|
NOTE_PROJECTION,
|
|
|
NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID
|
|
|
+ "=0", null, null);
|
|
|
|
|
|
if (noteCursor != null) {
|
|
|
if (noteCursor.moveToFirst()) {
|
|
|
do {
|
|
|
ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
|
|
|
mContext.getString(R.string.format_datetime_mdhm),
|
|
|
noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)));
|
|
|
// 查询属于该笔记的所有数据
|
|
|
String noteId = noteCursor.getString(NOTE_COLUMN_ID);
|
|
|
exportNoteToText(noteId, ps);
|
|
|
} while (noteCursor.moveToNext());
|
|
|
}
|
|
|
noteCursor.close();
|
|
|
}
|
|
|
ps.close();
|
|
|
|
|
|
return STATE_SUCCESS;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 获取指向导出文本文件的打印流
|
|
|
* @return 打印流
|
|
|
*/
|
|
|
private PrintStream getExportToTextPrintStream() {
|
|
|
// 生成SD卡上的文件
|
|
|
File file = generateFileMountedOnSDcard(mContext, R.string.file_path,
|
|
|
R.string.file_name_txt_format);
|
|
|
if (file == null) {
|
|
|
Log.e(TAG, "create file to exported failed");
|
|
|
return null;
|
|
|
}
|
|
|
mFileName = file.getName();
|
|
|
mFileDirectory = mContext.getString(R.string.file_path);
|
|
|
PrintStream ps = null;
|
|
|
try {
|
|
|
FileOutputStream fos = new FileOutputStream(file);
|
|
|
ps = new PrintStream(fos);
|
|
|
} catch (FileNotFoundException e) {
|
|
|
e.printStackTrace();
|
|
|
return null;
|
|
|
} catch (NullPointerException e) {
|
|
|
e.printStackTrace();
|
|
|
return null;
|
|
|
}
|
|
|
return ps;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 在SD卡上生成用于存储导出数据的文本文件
|
|
|
* @param context 上下文对象
|
|
|
* @param filePathResId 文件路径资源ID
|
|
|
* @param fileNameFormatResId 文件名格式资源ID
|
|
|
* @return 生成的文件对象
|
|
|
*/
|
|
|
private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) {
|
|
|
StringBuilder sb = new StringBuilder();
|
|
|
// 获取外部存储目录
|
|
|
sb.append(Environment.getExternalStorageDirectory());
|
|
|
// 添加文件路径
|
|
|
sb.append(context.getString(filePathResId));
|
|
|
File filedir = new File(sb.toString());
|
|
|
// 添加文件名（包含当前日期）
|
|
|
sb.append(context.getString(
|
|
|
fileNameFormatResId,
|
|
|
DateFormat.format(context.getString(R.string.format_date_ymd),
|
|
|
System.currentTimeMillis())));
|
|
|
File file = new File(sb.toString());
|
|
|
|
|
|
try {
|
|
|
// 如果目录不存在则创建
|
|
|
if (!filedir.exists()) {
|
|
|
filedir.mkdir();
|
|
|
}
|
|
|
// 如果文件不存在则创建
|
|
|
if (!file.exists()) {
|
|
|
file.createNewFile();
|
|
|
}
|
|
|
return file;
|
|
|
} catch (SecurityException e) {
|
|
|
e.printStackTrace();
|
|
|
} catch (IOException e) {
|
|
|
e.printStackTrace();
|
|
|
}
|
|
|
|
|
|
return null;
|
|
|
}
|
|
|
} |
