第三次更新

main
一条鱼和xiao 3 months ago
parent a4243f1b7a
commit c4928bf7fc

@ -16,18 +16,36 @@
package net.micode.notes.gtask.exception; package net.micode.notes.gtask.exception;
/**
*
* Google
* RuntimeException
*/
public class ActionFailureException extends RuntimeException { public class ActionFailureException extends RuntimeException {
// 序列化版本UID用于版本控制
private static final long serialVersionUID = 4425249765923293627L; private static final long serialVersionUID = 4425249765923293627L;
/**
*
*/
public ActionFailureException() { public ActionFailureException() {
super(); super();
} }
/**
*
* @param paramString
*/
public ActionFailureException(String paramString) { public ActionFailureException(String paramString) {
super(paramString); super(paramString);
} }
/**
*
* @param paramString
* @param paramThrowable
*/
public ActionFailureException(String paramString, Throwable paramThrowable) { public ActionFailureException(String paramString, Throwable paramThrowable) {
super(paramString, paramThrowable); super(paramString, paramThrowable);
} }
} }

@ -16,18 +16,36 @@
package net.micode.notes.gtask.exception; package net.micode.notes.gtask.exception;
/**
*
* Google
* Exception
*/
public class NetworkFailureException extends Exception { public class NetworkFailureException extends Exception {
// 序列化版本UID用于版本控制
private static final long serialVersionUID = 2107610287180234136L; private static final long serialVersionUID = 2107610287180234136L;
/**
*
*/
public NetworkFailureException() { public NetworkFailureException() {
super(); super();
} }
/**
*
* @param paramString
*/
public NetworkFailureException(String paramString) { public NetworkFailureException(String paramString) {
super(paramString); super(paramString);
} }
/**
*
* @param paramString
* @param paramThrowable
*/
public NetworkFailureException(String paramString, Throwable paramThrowable) { public NetworkFailureException(String paramString, Throwable paramThrowable) {
super(paramString, paramThrowable); super(paramString, paramThrowable);
} }
} }

@ -35,12 +35,23 @@ import java.io.FileOutputStream;
import java.io.IOException; import java.io.IOException;
import java.io.PrintStream; import java.io.PrintStream;
/**
*
*
*/
public class BackupUtils { public class BackupUtils {
// 日志标签,用于在日志中标识此工具类的相关操作
private static final String TAG = "BackupUtils"; private static final String TAG = "BackupUtils";
// Singleton stuff // 单例实例用于确保BackupUtils类只有一个实例存在
private static BackupUtils sInstance; private static BackupUtils sInstance;
/**
* BackupUtils
*
*
* @param context 访
* @return BackupUtils
*/
public static synchronized BackupUtils getInstance(Context context) { public static synchronized BackupUtils getInstance(Context context) {
if (sInstance == null) { if (sInstance == null) {
sInstance = new BackupUtils(context); sInstance = new BackupUtils(context);
@ -49,43 +60,74 @@ public class BackupUtils {
} }
/** /**
* Following states are signs to represents backup or restore *
* status *
*/ */
// Currently, the sdcard is not mounted // 外部存储设备如SD卡未挂载
public static final int STATE_SD_CARD_UNMOUONTED = 0; public static final int STATE_SD_CARD_UNMOUONTED = 0;
// The backup file not exist // 备份文件不存在
public static final int STATE_BACKUP_FILE_NOT_EXIST = 1; public static final int STATE_BACKUP_FILE_NOT_EXIST = 1;
// The data is not well formated, may be changed by other programs // 数据格式不正确,可能被其他程序修改过
public static final int STATE_DATA_DESTROIED = 2; public static final int STATE_DATA_DESTROIED = 2;
// Some run-time exception which causes restore or backup fails // 运行时异常导致备份或恢复失败
public static final int STATE_SYSTEM_ERROR = 3; public static final int STATE_SYSTEM_ERROR = 3;
// Backup or restore success // 备份或恢复成功
public static final int STATE_SUCCESS = 4; public static final int STATE_SUCCESS = 4;
// 文本导出工具类实例,用于实际的文本导出操作
private TextExport mTextExport; private TextExport mTextExport;
/**
*
*
* @param context TextExport
*/
private BackupUtils(Context context) { private BackupUtils(Context context) {
mTextExport = new TextExport(context); mTextExport = new TextExport(context);
} }
/**
*
*
* @return truefalse
*/
private static boolean externalStorageAvailable() { private static boolean externalStorageAvailable() {
return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState()); return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
} }
/**
*
* TextExportexportToText
*
* @return STATE_SUCCESS
*/
public int exportToText() { public int exportToText() {
return mTextExport.exportToText(); return mTextExport.exportToText();
} }
/**
*
*
* @return
*/
public String getExportedTextFileName() { public String getExportedTextFileName() {
return mTextExport.mFileName; return mTextExport.mFileName;
} }
/**
*
*
* @return
*/
public String getExportedTextFileDir() { public String getExportedTextFileDir() {
return mTextExport.mFileDirectory; return mTextExport.mFileDirectory;
} }
/**
*
*/
private static class TextExport { private static class TextExport {
// 笔记数据投影,指定查询笔记时需要返回的列
private static final String[] NOTE_PROJECTION = { private static final String[] NOTE_PROJECTION = {
NoteColumns.ID, NoteColumns.ID,
NoteColumns.MODIFIED_DATE, NoteColumns.MODIFIED_DATE,
@ -93,12 +135,16 @@ public class BackupUtils {
NoteColumns.TYPE NoteColumns.TYPE
}; };
// 笔记ID列在NOTE_PROJECTION数组中的索引
private static final int NOTE_COLUMN_ID = 0; private static final int NOTE_COLUMN_ID = 0;
// 笔记修改日期列在NOTE_PROJECTION数组中的索引
private static final int NOTE_COLUMN_MODIFIED_DATE = 1; private static final int NOTE_COLUMN_MODIFIED_DATE = 1;
// 笔记摘要列在NOTE_PROJECTION数组中的索引
private static final int NOTE_COLUMN_SNIPPET = 2; private static final int NOTE_COLUMN_SNIPPET = 2;
// 数据投影,指定查询笔记相关数据时需要返回的列
private static final String[] DATA_PROJECTION = { private static final String[] DATA_PROJECTION = {
DataColumns.CONTENT, DataColumns.CONTENT,
DataColumns.MIME_TYPE, DataColumns.MIME_TYPE,
@ -108,23 +154,39 @@ public class BackupUtils {
DataColumns.DATA4, DataColumns.DATA4,
}; };
// 数据内容列在DATA_PROJECTION数组中的索引
private static final int DATA_COLUMN_CONTENT = 0; private static final int DATA_COLUMN_CONTENT = 0;
// 数据MIME类型列在DATA_PROJECTION数组中的索引
private static final int DATA_COLUMN_MIME_TYPE = 1; private static final int DATA_COLUMN_MIME_TYPE = 1;
// 数据调用日期列在DATA_PROJECTION数组中的索引
private static final int DATA_COLUMN_CALL_DATE = 2; private static final int DATA_COLUMN_CALL_DATE = 2;
// 数据电话号码列在DATA_PROJECTION数组中的索引
private static final int DATA_COLUMN_PHONE_NUMBER = 4; private static final int DATA_COLUMN_PHONE_NUMBER = 4;
private final String [] TEXT_FORMAT; // 文本格式数组,从资源中获取的文本格式字符串数组
private static final int FORMAT_FOLDER_NAME = 0; private final String[] TEXT_FORMAT;
private static final int FORMAT_NOTE_DATE = 1; // 文本格式中文件夹名称的索引
private static final int FORMAT_NOTE_CONTENT = 2; private static final int FORMAT_FOLDER_NAME = 0;
// 文本格式中笔记日期的索引
private static final int FORMAT_NOTE_DATE = 1;
// 文本格式中笔记内容的索引
private static final int FORMAT_NOTE_CONTENT = 2;
// 上下文对象,用于访问资源和内容解析器等
private Context mContext; private Context mContext;
// 导出的文件名
private String mFileName; private String mFileName;
// 导出的文件目录
private String mFileDirectory; private String mFileDirectory;
/**
*
*
* @param context
*/
public TextExport(Context context) { public TextExport(Context context) {
TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note); TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note);
mContext = context; mContext = context;
@ -132,28 +194,36 @@ public class BackupUtils {
mFileDirectory = ""; mFileDirectory = "";
} }
/**
*
*
* @param id TEXT_FORMAT
* @return
*/
private String getFormat(int id) { private String getFormat(int id) {
return TEXT_FORMAT[id]; return TEXT_FORMAT[id];
} }
/** /**
* Export the folder identified by folder id to text *
* exportNoteToText
*
* @param folderId ID
* @param ps
*/ */
private void exportFolderToText(String folderId, PrintStream ps) { private void exportFolderToText(String folderId, PrintStream ps) {
// Query notes belong to this folder // 查询属于该文件夹的笔记
Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI, Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI,
NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] { NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[]{folderId}, null);
folderId
}, null);
if (notesCursor != null) { if (notesCursor != null) {
if (notesCursor.moveToFirst()) { if (notesCursor.moveToFirst()) {
do { do {
// Print note's last modified date // 打印笔记的最后修改日期
ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format( ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
mContext.getString(R.string.format_datetime_mdhm), mContext.getString(R.string.format_datetime_mdhm),
notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
// Query data belong to this note // 查询属于该笔记的数据
String noteId = notesCursor.getString(NOTE_COLUMN_ID); String noteId = notesCursor.getString(NOTE_COLUMN_ID);
exportNoteToText(noteId, ps); exportNoteToText(noteId, ps);
} while (notesCursor.moveToNext()); } while (notesCursor.moveToNext());
@ -163,20 +233,22 @@ public class BackupUtils {
} }
/** /**
* Export note identified by id to a print stream * ID
* MIME
*
* @param noteId ID
* @param ps
*/ */
private void exportNoteToText(String noteId, PrintStream ps) { private void exportNoteToText(String noteId, PrintStream ps) {
Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI,
DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] { DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[]{noteId}, null);
noteId
}, null);
if (dataCursor != null) { if (dataCursor != null) {
if (dataCursor.moveToFirst()) { if (dataCursor.moveToFirst()) {
do { do {
String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE); String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE);
if (DataConstants.CALL_NOTE.equals(mimeType)) { if (DataConstants.CALL_NOTE.equals(mimeType)) {
// Print phone number // 打印电话号码
String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER); String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER);
long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE); long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE);
String location = dataCursor.getString(DATA_COLUMN_CONTENT); String location = dataCursor.getString(DATA_COLUMN_CONTENT);
@ -185,11 +257,11 @@ public class BackupUtils {
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
phoneNumber)); phoneNumber));
} }
// Print call date // 打印通话日期
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat
.format(mContext.getString(R.string.format_datetime_mdhm), .format(mContext.getString(R.string.format_datetime_mdhm),
callDate))); callDate)));
// Print call attachment location // 打印通话附件位置
if (!TextUtils.isEmpty(location)) { if (!TextUtils.isEmpty(location)) {
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
location)); location));
@ -205,9 +277,9 @@ public class BackupUtils {
} }
dataCursor.close(); dataCursor.close();
} }
// print a line separator between note // 打印笔记之间的分隔符
try { try {
ps.write(new byte[] { ps.write(new byte[]{
Character.LINE_SEPARATOR, Character.LETTER_NUMBER Character.LINE_SEPARATOR, Character.LETTER_NUMBER
}); });
} catch (IOException e) { } catch (IOException e) {
@ -216,7 +288,10 @@ public class BackupUtils {
} }
/** /**
* Note will be exported as text which is user readable *
*
*
* @return STATE_SUCCESS
*/ */
public int exportToText() { public int exportToText() {
if (!externalStorageAvailable()) { if (!externalStorageAvailable()) {
@ -229,7 +304,7 @@ public class BackupUtils {
Log.e(TAG, "get print stream error"); Log.e(TAG, "get print stream error");
return STATE_SYSTEM_ERROR; return STATE_SYSTEM_ERROR;
} }
// First export folder and its notes // 先导出文件夹及其笔记
Cursor folderCursor = mContext.getContentResolver().query( Cursor folderCursor = mContext.getContentResolver().query(
Notes.CONTENT_NOTE_URI, Notes.CONTENT_NOTE_URI,
NOTE_PROJECTION, NOTE_PROJECTION,
@ -240,9 +315,9 @@ public class BackupUtils {
if (folderCursor != null) { if (folderCursor != null) {
if (folderCursor.moveToFirst()) { if (folderCursor.moveToFirst()) {
do { do {
// Print folder's name // 打印文件夹名称
String folderName = ""; String folderName = "";
if(folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) { if (folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) {
folderName = mContext.getString(R.string.call_record_folder_name); folderName = mContext.getString(R.string.call_record_folder_name);
} else { } else {
folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET); folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET);
@ -257,11 +332,11 @@ public class BackupUtils {
folderCursor.close(); folderCursor.close();
} }
// Export notes in root's folder // 导出根文件夹中的笔记
Cursor noteCursor = mContext.getContentResolver().query( Cursor noteCursor = mContext.getContentResolver().query(
Notes.CONTENT_NOTE_URI, Notes.CONTENT_NOTE_URI,
NOTE_PROJECTION, NOTE_PROJECTION,
NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID NoteColumns.TYPE + "=" + Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID
+ "=0", null, null); + "=0", null, null);
if (noteCursor != null) { if (noteCursor != null) {
@ -270,7 +345,7 @@ public class BackupUtils {
ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format( ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
mContext.getString(R.string.format_datetime_mdhm), mContext.getString(R.string.format_datetime_mdhm),
noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
// Query data belong to this note // 查询属于该笔记的数据
String noteId = noteCursor.getString(NOTE_COLUMN_ID); String noteId = noteCursor.getString(NOTE_COLUMN_ID);
exportNoteToText(noteId, ps); exportNoteToText(noteId, ps);
} while (noteCursor.moveToNext()); } while (noteCursor.moveToNext());
@ -283,7 +358,10 @@ public class BackupUtils {
} }
/** /**
* Get a print stream pointed to the file {@generateExportedTextFile} *
*
*
* @return null
*/ */
private PrintStream getExportToTextPrintStream() { private PrintStream getExportToTextPrintStream() {
File file = generateFileMountedOnSDcard(mContext, R.string.file_path, File file = generateFileMountedOnSDcard(mContext, R.string.file_path,
@ -310,7 +388,13 @@ public class BackupUtils {
} }
/** /**
* Generate the text file to store imported data *
*
*
* @param context
* @param filePathResId ID
* @param fileNameFormatResId ID
* @return null
*/ */
private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) { private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) {
StringBuilder sb = new StringBuilder(); StringBuilder sb = new StringBuilder();
@ -339,6 +423,4 @@ public class BackupUtils {
return null; return null;
} }
} }
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