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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.tool;
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import android.content.ContentProviderOperation;
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import android.content.ContentProviderResult;
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import android.content.ContentResolver;
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import android.content.ContentUris;
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import android.content.ContentValues;
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import android.content.OperationApplicationException;
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import android.database.Cursor;
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import android.os.RemoteException;
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import android.text.TextUtils;
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import android.util.Log;
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import net.micode.notes.data.Notes;
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import net.micode.notes.data.Notes.CallNote;
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import net.micode.notes.data.Notes.NoteColumns;
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import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute;
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import java.util.ArrayList;
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import java.util.HashSet;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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/**
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* 数据操作工具类
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*
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* 提供便签数据的批量操作、查询和验证功能，包括：
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* 1. 批量删除便签
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* 2. 批量移动便签到指定文件夹
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* 3. 查询文件夹和便签信息
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* 4. 验证数据存在性和唯一性
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*
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* 设计说明：
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* - 所有方法均为静态方法，无需实例化
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* - 使用批量操作提高数据库操作效率
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* - 提供详细的错误日志输出
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*/
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public class DataUtils {
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public static final String TAG = "DataUtils"; // 日志标签
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/**
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* 批量删除便签
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*
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* 使用批量操作（applyBatch）高效删除多个便签，支持以下特性：
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* 1. 自动跳过系统文件夹（如根文件夹）的保护
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* 2. 支持空集合和空参数的检查
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* 3. 使用事务保证数据一致性
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*
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* @param resolver 内容解析器，用于访问ContentProvider
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* @param ids 要删除的便签ID集合，为null或空集合时直接返回成功
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* @return true表示删除成功，false表示删除失败
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*/
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public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) {
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if (ids == null) {
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Log.d(TAG, "the ids is null");
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return true; // 空参数视为成功，无需操作
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}
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if (ids.size() == 0) {
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Log.d(TAG, "no id is in the hashset");
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return true; // 空集合视为成功，无需操作
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}
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ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
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for (long id : ids) {
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if(id == Notes.ID_ROOT_FOLDER) {
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Log.e(TAG, "Don't delete system folder root");
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continue; // 跳过系统根文件夹，防止误删系统数据
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}
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ContentProviderOperation.Builder builder = ContentProviderOperation
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.newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
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operationList.add(builder.build());
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}
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try {
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ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
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if (results == null || results.length == 0 || results[0] == null) {
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Log.d(TAG, "delete notes failed, ids:" + ids.toString());
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return false; // 批量操作返回结果异常
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}
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return true; // 删除成功
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} catch (RemoteException e) {
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Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
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} catch (OperationApplicationException e) {
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Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
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}
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return false; // 异常情况
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}
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/**
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* 字数统计相关方法
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* 用于统计文本中的中文字数、数字和英文字符
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* 统计规则：
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* 1. 中文字符：每个汉字算1个字数
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* 2. 数字：每个数字算1个字数
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* 3. 英文字符：每个英文字母算1个字数
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* 4. 不统计标点符号与空格
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*/
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// 中文字符正则表达式
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private static final Pattern CHINESE_CHAR_PATTERN = Pattern.compile("[\\u4e00-\\u9fa5]");
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// 数字正则表达式
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private static final Pattern NUMBER_PATTERN = Pattern.compile("[0-9]");
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// 英文字符正则表达式
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private static final Pattern ENGLISH_CHAR_PATTERN = Pattern.compile("[a-zA-Z]");
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/**
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* 统计文本总字数
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* @param text 要统计的文本
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* @return 总字数
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*/
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public static int getTotalWordCount(String text) {
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if (TextUtils.isEmpty(text)) {
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return 0;
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}
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int chineseCount = countChineseCharacters(text);
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int numberCount = countNumbers(text);
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int englishCount = countEnglishCharacters(text);
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return chineseCount + numberCount + englishCount;
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}
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/**
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* 统计中文字符数
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* @param text 要统计的文本
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* @return 中文字符数
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*/
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private static int countChineseCharacters(String text) {
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Matcher matcher = CHINESE_CHAR_PATTERN.matcher(text);
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int count = 0;
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while (matcher.find()) {
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count++;
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}
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return count;
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}
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/**
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* 统计数字字符数
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* @param text 要统计的文本
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* @return 数字字符数
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*/
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private static int countNumbers(String text) {
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Matcher matcher = NUMBER_PATTERN.matcher(text);
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int count = 0;
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while (matcher.find()) {
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count++;
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}
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return count;
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}
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/**
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* 统计英文字符数
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* @param text 要统计的文本
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* @return 英文字符数
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*/
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private static int countEnglishCharacters(String text) {
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Matcher matcher = ENGLISH_CHAR_PATTERN.matcher(text);
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int count = 0;
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while (matcher.find()) {
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count++;
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}
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return count;
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}
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/**
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* 移动单个便签到指定文件夹
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*
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* 更新便签的父文件夹ID，并记录原始父文件夹ID以便撤销操作
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*
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* @param resolver 内容解析器
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* @param id 要移动的便签ID
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* @param srcFolderId 原始文件夹ID
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* @param desFolderId 目标文件夹ID
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*/
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public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) {
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ContentValues values = new ContentValues();
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values.put(NoteColumns.PARENT_ID, desFolderId); // 设置新父文件夹
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// 只有当移动到回收站时，才记录原始父文件夹ID
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// 从回收站恢复时，保留原始的ORIGIN_PARENT_ID，以便递归恢复子项
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if (desFolderId == Notes.ID_TRASH_FOLER) {
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values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId); // 记录原始父文件夹，用于撤销
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}
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values.put(NoteColumns.LOCAL_MODIFIED, 1); // 标记为本地已修改，需要同步
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resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null);
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}
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/**
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* 批量移动便签到指定文件夹
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*
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* 使用批量操作高效移动多个便签，支持以下特性：
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* 1. 支持空集合的检查
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* 2. 使用事务保证数据一致性
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* 3. 自动标记为本地修改，触发同步
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* 4. 移动到回收站时记录原始父文件夹ID
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*
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* @param resolver 内容解析器
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* @param ids 要移动的便签ID集合
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* @param folderId 目标文件夹ID
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* @return true表示移动成功，false表示移动失败
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*/
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public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids,
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long folderId) {
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if (ids == null) {
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Log.d(TAG, "the ids is null");
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return true; // 空参数视为成功
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}
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ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
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for (long id : ids) {
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ContentProviderOperation.Builder builder = ContentProviderOperation
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.newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
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// 如果是移动到回收站，记录原始父文件夹ID
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if (folderId == Notes.ID_TRASH_FOLER) {
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// 首先查询当前父文件夹ID
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Cursor cursor = resolver.query(
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ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id),
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new String[]{NoteColumns.PARENT_ID},
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null,
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null,
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null);
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if (cursor != null) {
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if (cursor.moveToFirst()) {
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long currentParentId = cursor.getLong(0);
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// 保存原始父文件夹ID
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builder.withValue(NoteColumns.ORIGIN_PARENT_ID, currentParentId);
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}
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cursor.close();
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}
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}
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builder.withValue(NoteColumns.PARENT_ID, folderId); // 设置新父文件夹
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builder.withValue(NoteColumns.LOCAL_MODIFIED, 1); // 标记为本地修改
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operationList.add(builder.build());
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}
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try {
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ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
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if (results == null || results.length == 0 || results[0] == null) {
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Log.d(TAG, "delete notes failed, ids:" + ids.toString());
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return false;
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}
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return true;
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} catch (RemoteException e) {
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Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
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} catch (OperationApplicationException e) {
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Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
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}
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return false;
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}
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/**
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* 获取指定文件夹下的所有直接子项（包括便签和子文件夹）
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*
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* @param resolver 内容解析器
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* @param folderId 文件夹ID
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* @return 子项ID集合，没有子项时返回空集合
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*/
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public static HashSet<Long> getFolderItems(ContentResolver resolver, long folderId) {
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HashSet<Long> items = new HashSet<Long>();
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Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI,
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new String[]{NoteColumns.ID},
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NoteColumns.PARENT_ID + "=?",
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new String[]{String.valueOf(folderId)},
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null);
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if (cursor != null) {
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if (cursor.moveToFirst()) {
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do {
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long id = cursor.getLong(0);
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items.add(id);
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} while (cursor.moveToNext());
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}
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cursor.close();
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}
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return items;
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}
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/**
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* 获取用户文件夹数量（排除系统文件夹）
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*
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* 统计用户创建的自定义文件夹数量，不包括系统文件夹和回收站
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*
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* @param resolver 内容解析器
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* @return 用户文件夹数量，查询失败时返回0
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*/
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public static int getUserFolderCount(ContentResolver resolver) {
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Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI,
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new String[] { "COUNT(*)" },
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NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?",
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new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)},
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null);
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int count = 0;
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if(cursor != null) {
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if(cursor.moveToFirst()) {
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try {
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count = cursor.getInt(0);
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} catch (IndexOutOfBoundsException e) {
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Log.e(TAG, "get folder count failed:" + e.toString());
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} finally {
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cursor.close();
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}
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}
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}
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return count;
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}
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/**
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* 检查指定类型便签在数据库中是否可见（不在回收站中）
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*
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* 用于验证便签是否存在于数据库中且未被放入回收站
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*
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* @param resolver 内容解析器
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* @param noteId 要检查的便签ID
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* @param type 便签类型（Notes.TYPE_NOTE或Notes.TYPE_FOLDER）
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* @return true表示便签存在且不在回收站中，false表示不存在或在回收站中
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*/
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public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
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// 根文件夹永远可见
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if (noteId == Notes.ID_ROOT_FOLDER) {
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return true;
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}
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Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
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null,
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NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER,
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new String [] {String.valueOf(type)},
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null);
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boolean exist = false;
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if (cursor != null) {
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if (cursor.getCount() > 0) {
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exist = true;
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}
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cursor.close();
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}
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return exist;
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}
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/**
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* 检查便签是否存在于数据库中
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*
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* 不检查便签是否在回收站中，只验证ID是否存在
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*
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* @param resolver 内容解析器
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* @param noteId 要检查的便签ID
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* @return true表示便签ID存在，false表示不存在
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*/
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public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) {
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Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
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null, null, null, null);
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boolean exist = false;
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if (cursor != null) {
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if (cursor.getCount() > 0) {
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exist = true;
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}
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cursor.close();
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}
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return exist;
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}
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/**
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* 检查数据记录是否存在于数据表中
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*
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* 用于验证数据ID是否可用，避免ID冲突
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*
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* @param resolver 内容解析器
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* @param dataId 要检查的数据记录ID
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* @return true表示数据ID存在，false表示不存在
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*/
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public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {
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Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId),
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null, null, null, null);
|
|
|
|
|
|
boolean exist = false;
|
|
|
if (cursor != null) {
|
|
|
if (cursor.getCount() > 0) {
|
|
|
exist = true;
|
|
|
}
|
|
|
cursor.close();
|
|
|
}
|
|
|
return exist;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 检查指定文件夹名称是否已存在（在可见文件夹中）
|
|
|
*
|
|
|
* 用于创建新文件夹时的名称重复性检查，不检查回收站中的文件夹
|
|
|
*
|
|
|
* @param resolver 内容解析器
|
|
|
* @param name 要检查的文件夹名称
|
|
|
* @return true表示同名文件夹已存在，false表示不存在
|
|
|
*/
|
|
|
public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {
|
|
|
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) {
|
|
|
if(cursor.getCount() > 0) {
|
|
|
exist = true;
|
|
|
}
|
|
|
cursor.close();
|
|
|
}
|
|
|
return exist;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 获取指定文件夹下所有便签关联的小部件属性
|
|
|
*
|
|
|
* 用于文件夹删除或移动时，更新关联的小部件显示
|
|
|
*
|
|
|
* @param resolver 内容解析器
|
|
|
* @param folderId 文件夹ID
|
|
|
* @return 小部件属性集合，没有关联小部件时返回null
|
|
|
*/
|
|
|
public static HashSet<AppWidgetAttribute> getFolderNoteWidget(ContentResolver resolver, long folderId) {
|
|
|
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<AppWidgetAttribute> set = null;
|
|
|
if (c != null) {
|
|
|
if (c.moveToFirst()) {
|
|
|
set = new HashSet<AppWidgetAttribute>();
|
|
|
do {
|
|
|
try {
|
|
|
AppWidgetAttribute widget = new AppWidgetAttribute();
|
|
|
widget.widgetId = c.getInt(0);
|
|
|
widget.widgetType = c.getInt(1);
|
|
|
set.add(widget);
|
|
|
} catch (IndexOutOfBoundsException e) {
|
|
|
Log.e(TAG, e.toString());
|
|
|
}
|
|
|
} while (c.moveToNext());
|
|
|
}
|
|
|
c.close();
|
|
|
}
|
|
|
return set;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 根据便签ID获取关联的通话记录电话号码
|
|
|
*
|
|
|
* 用于通话记录便签的显示和查询
|
|
|
*
|
|
|
* @param resolver 内容解析器
|
|
|
* @param noteId 便签ID
|
|
|
* @return 电话号码字符串，未找到时返回空字符串
|
|
|
*/
|
|
|
public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) {
|
|
|
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 {
|
|
|
return cursor.getString(0);
|
|
|
} catch (IndexOutOfBoundsException e) {
|
|
|
Log.e(TAG, "Get call number fails " + e.toString());
|
|
|
} finally {
|
|
|
cursor.close();
|
|
|
}
|
|
|
}
|
|
|
return ""; // 未找到通话记录或查询失败
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 根据电话号码和通话时间获取便签ID
|
|
|
*
|
|
|
* 用于检查是否存在相同通话记录，避免重复创建
|
|
|
* 使用自定义SQL函数PHONE_NUMBERS_EQUAL进行电话号码匹配
|
|
|
*
|
|
|
* @param resolver 内容解析器
|
|
|
* @param phoneNumber 电话号码
|
|
|
* @param callDate 通话时间戳
|
|
|
* @return 便签ID，未找到时返回0
|
|
|
*/
|
|
|
public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) {
|
|
|
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 {
|
|
|
return cursor.getLong(0);
|
|
|
} catch (IndexOutOfBoundsException e) {
|
|
|
Log.e(TAG, "Get call note id fails " + e.toString());
|
|
|
}
|
|
|
}
|
|
|
cursor.close();
|
|
|
}
|
|
|
return 0; // 未找到匹配的通话记录
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 根据便签ID获取便签片段（snippet）
|
|
|
*
|
|
|
* 便签片段通常用于列表显示，是便签内容的摘要
|
|
|
*
|
|
|
* @param resolver 内容解析器
|
|
|
* @param noteId 便签ID
|
|
|
* @return 便签片段字符串
|
|
|
* @throws IllegalArgumentException 当便签ID不存在时抛出
|
|
|
*/
|
|
|
public static String getSnippetById(ContentResolver resolver, long noteId) {
|
|
|
Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI,
|
|
|
new String [] { NoteColumns.SNIPPET },
|
|
|
NoteColumns.ID + "=?",
|
|
|
new String [] { String.valueOf(noteId)},
|
|
|
null);
|
|
|
|
|
|
if (cursor != null) {
|
|
|
String snippet = "";
|
|
|
if (cursor.moveToFirst()) {
|
|
|
snippet = cursor.getString(0);
|
|
|
}
|
|
|
cursor.close();
|
|
|
return snippet;
|
|
|
}
|
|
|
throw new IllegalArgumentException("Note is not found with id: " + noteId);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 格式化便签片段
|
|
|
*
|
|
|
* 处理便签片段，使其适合在UI中显示：
|
|
|
* 1. 去除首尾空格
|
|
|
* 2. 截取到第一个换行符处（如果存在）
|
|
|
*
|
|
|
* @param snippet 原始便签片段
|
|
|
* @return 格式化后的便签片段
|
|
|
*/
|
|
|
public static String getFormattedSnippet(String snippet) {
|
|
|
if (snippet != null) {
|
|
|
snippet = snippet.trim(); // 去除首尾空格
|
|
|
int index = snippet.indexOf('\n');
|
|
|
if (index != -1) {
|
|
|
snippet = snippet.substring(0, index); // 截取到第一个换行符
|
|
|
}
|
|
|
}
|
|
|
return snippet;
|
|
|
}
|
|
|
} |
