/* * 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. */ /** * 文件: DataUtils.java * 描述: 便签数据操作工具类,提供便签数据的批量处理和查询功能 * 作用: 封装对便签数据的各种操作,如批量删除、移动便签、查询便签信息等 */ package net.micode.notes.tool; import android.content.ContentProviderOperation; import android.content.ContentProviderResult; import android.content.ContentResolver; import android.content.ContentUris; import android.content.ContentValues; import android.content.OperationApplicationException; import android.database.Cursor; import android.os.RemoteException; import android.util.Log; import net.micode.notes.data.Notes; import net.micode.notes.data.Notes.CallNote; import net.micode.notes.data.Notes.NoteColumns; import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute; import java.util.ArrayList; import java.util.HashSet; /** * 便签数据操作工具类 * * 提供便签数据的批量操作和查询功能,包括批量删除、移动便签、查询便签信息等 * 所有方法都是静态的,可以直接通过类名调用 */ public class DataUtils { public static final String TAG = "DataUtils"; /** * 批量删除便签 * * @param resolver 内容解析器 * @param ids 要删除的便签ID集合 * @return 删除成功返回true,失败返回false */ public static boolean batchDeleteNotes(ContentResolver resolver, HashSet ids) { // 检查参数有效性 if (ids == null) { Log.d(TAG, "the ids is null"); return true; } if (ids.size() == 0) { Log.d(TAG, "no id is in the hashset"); return true; } // 创建批量操作列表 ArrayList operationList = new ArrayList(); for (long id : ids) { // 不允许删除根文件夹 if(id == Notes.ID_ROOT_FOLDER) { Log.e(TAG, "Don't delete system folder root"); continue; } // 为每个便签ID创建删除操作 ContentProviderOperation.Builder builder = ContentProviderOperation .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); operationList.add(builder.build()); } try { // 执行批量操作 ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); // 检查操作结果 if (results == null || results.length == 0 || results[0] == null) { Log.d(TAG, "delete notes failed, ids:" + ids.toString()); return false; } return true; } catch (RemoteException e) { // 远程异常处理 Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); } catch (OperationApplicationException e) { // 操作应用异常处理 Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); } return false; } /** * 将便签移动到指定文件夹 * * @param resolver 内容解析器 * @param id 便签ID * @param srcFolderId 源文件夹ID * @param desFolderId 目标文件夹ID */ public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) { // 创建更新数据 ContentValues values = new ContentValues(); values.put(NoteColumns.PARENT_ID, desFolderId); // 设置新的父文件夹ID values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId); // 保存原始父文件夹ID values.put(NoteColumns.LOCAL_MODIFIED, 1); // 标记为本地已修改 // 更新便签数据 resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null); } /** * 批量将便签移动到指定文件夹 * * @param resolver 内容解析器 * @param ids 要移动的便签ID集合 * @param folderId 目标文件夹ID * @return 移动成功返回true,失败返回false */ public static boolean batchMoveToFolder(ContentResolver resolver, HashSet ids, long folderId) { // 检查参数有效性 if (ids == null) { Log.d(TAG, "the ids is null"); return true; } // 创建批量操作列表 ArrayList operationList = new ArrayList(); for (long id : ids) { // 为每个便签ID创建更新操作 ContentProviderOperation.Builder builder = ContentProviderOperation .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); builder.withValue(NoteColumns.PARENT_ID, folderId); // 设置新的父文件夹ID builder.withValue(NoteColumns.LOCAL_MODIFIED, 1); // 标记为本地已修改 operationList.add(builder.build()); } try { // 执行批量操作 ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); // 检查操作结果 if (results == null || results.length == 0 || results[0] == null) { Log.d(TAG, "delete notes failed, ids:" + ids.toString()); return false; } return true; } catch (RemoteException e) { // 远程异常处理 Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); } catch (OperationApplicationException e) { // 操作应用异常处理 Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); } return false; } /** * 获取用户文件夹数量(不包括系统文件夹) * * @param resolver 内容解析器 * @return 用户文件夹数量 */ public static int getUserFolderCount(ContentResolver resolver) { // 查询类型为文件夹且不在回收站中的记录数量 Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, new String[] { "COUNT(*)" }, NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?", new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)}, null); int count = 0; if(cursor != null) { if(cursor.moveToFirst()) { try { // 获取查询结果中的计数值 count = cursor.getInt(0); } catch (IndexOutOfBoundsException e) { // 索引越界异常处理 Log.e(TAG, "get folder count failed:" + e.toString()); } finally { // 确保关闭游标 cursor.close(); } } } return count; } /** * 检查指定ID和类型的便签是否可见(不在回收站中) * * @param resolver 内容解析器 * @param noteId 便签ID * @param type 便签类型 * @return 如果便签可见返回true,否则返回false */ public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) { // 查询指定ID和类型的便签,且不在回收站中 Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null, NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER, new String [] {String.valueOf(type)}, null); boolean exist = false; if (cursor != null) { // 如果查询结果不为空,则便签存在且可见 if (cursor.getCount() > 0) { exist = true; } cursor.close(); } return exist; } /** * 检查指定ID的便签是否存在于数据库中 * * @param resolver 内容解析器 * @param noteId 便签ID * @return 如果便签存在返回true,否则返回false */ public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) { // 查询指定ID的便签 Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null, null, null, null); boolean exist = false; if (cursor != null) { // 如果查询结果不为空,则便签存在 if (cursor.getCount() > 0) { exist = true; } cursor.close(); } return exist; } /** * 检查指定ID的数据是否存在于数据库中 * * @param resolver 内容解析器 * @param dataId 数据ID * @return 如果数据存在返回true,否则返回false */ public static boolean existInDataDatabase(ContentResolver resolver, long dataId) { // 查询指定ID的数据 Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null, null, null, null); boolean exist = false; if (cursor != null) { // 如果查询结果不为空,则数据存在 if (cursor.getCount() > 0) { exist = true; } cursor.close(); } return exist; } /** * 检查可见文件夹中是否存在指定名称的文件夹 * * @param resolver 内容解析器 * @param name 文件夹名称 * @return 如果存在返回true,否则返回false */ public static boolean checkVisibleFolderName(ContentResolver resolver, String name) { // 查询类型为文件夹、不在回收站中且名称匹配的记录 Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null, NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + " AND " + NoteColumns.SNIPPET + "=?", new String[] { name }, null); boolean exist = false; if(cursor != null) { // 如果查询结果不为空,则存在同名文件夹 if(cursor.getCount() > 0) { exist = true; } cursor.close(); } return exist; } /** * 获取指定文件夹中的所有小部件属性 * * @param resolver 内容解析器 * @param folderId 文件夹ID * @return 小部件属性集合,如果没有则返回null */ public static HashSet getFolderNoteWidget(ContentResolver resolver, long folderId) { // 查询指定文件夹中便签的小部件ID和类型 Cursor c = resolver.query(Notes.CONTENT_NOTE_URI, new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE }, NoteColumns.PARENT_ID + "=?", new String[] { String.valueOf(folderId) }, null); HashSet set = null; if (c != null) { if (c.moveToFirst()) { // 创建小部件属性集合 set = new HashSet(); do { try { // 提取小部件ID和类型 AppWidgetAttribute widget = new AppWidgetAttribute(); widget.widgetId = c.getInt(0); widget.widgetType = c.getInt(1); set.add(widget); } catch (IndexOutOfBoundsException e) { // 索引越界异常处理 Log.e(TAG, e.toString()); } } while (c.moveToNext()); } c.close(); } return set; } /** * 根据便签ID获取关联的电话号码 * * @param resolver 内容解析器 * @param noteId 便签ID * @return 电话号码字符串,如果没有则返回空字符串 */ public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) { // 查询指定便签ID和MIME类型的通话记录数据 Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI, new String [] { CallNote.PHONE_NUMBER }, CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?", new String [] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE }, null); if (cursor != null && cursor.moveToFirst()) { try { // 返回电话号码 return cursor.getString(0); } catch (IndexOutOfBoundsException e) { // 索引越界异常处理 Log.e(TAG, "Get call number fails " + e.toString()); } finally { // 确保关闭游标 cursor.close(); } } return ""; } /** * 根据电话号码和通话日期获取便签ID * * @param resolver 内容解析器 * @param phoneNumber 电话号码 * @param callDate 通话日期 * @return 便签ID,如果没有找到则返回0 */ public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) { // 查询匹配电话号码和通话日期的便签ID Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI, new String [] { CallNote.NOTE_ID }, CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL(" + CallNote.PHONE_NUMBER + ",?)", new String [] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber}, null); if (cursor != null) { if (cursor.moveToFirst()) { try { // 返回便签ID return cursor.getLong(0); } catch (IndexOutOfBoundsException e) { Log.e(TAG, "Get note id by phone number and call date fails: " + e.toString()); } finally { cursor.close(); } } else { cursor.close(); } } return 0; } /** * 根据便签ID获取便签摘要 * * @param resolver 内容解析器 * @param noteId 便签ID * @return 便签摘要,如果没有则返回空字符串 */ public static String getSnippetById(ContentResolver resolver, long noteId) { // 查询指定便签ID的摘要 Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), new String[] { NoteColumns.SNIPPET }, null, null, null); if (cursor != null) { if (cursor.moveToFirst()) { try { // 返回便签摘要 return cursor.getString(0); } catch (IndexOutOfBoundsException e) { Log.e(TAG, "Get snippet fails: " + e.toString()); } finally { cursor.close(); } } else { cursor.close(); } } return ""; } /** * 格式化便签摘要,处理特殊字符和长度 * * @param snippet 原始摘要 * @return 格式化后的摘要 */ public static String getFormattedSnippet(String snippet) { if (snippet != null) { // 替换换行符为空格 snippet = snippet.replace('\n', ' '); } return snippet; } }