yzy_502/src/tool/DataUtils.java

/*
 * 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.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;


public class DataUtils {
    public static final String TAG = "DataUtils";

    /**
     * 批量删除笔记方法
     *
     * @param resolver ContentResolver对象，用于访问应用数据
     * @param ids      要删除的笔记的ID集合
     * @return         删除是否成功，成功返回true，否则返回false
     */
    public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) {
        // 检查输入的ids是否为null
        if (ids == null) {
            Log.d(TAG, "ids 为 null");
            return true;
        }
        // 检查ids集合是否为空
        if (ids.size() == 0) {
            Log.d(TAG, "哈希集合中没有 id");
            return true;
        }

        // 准备ContentProviderOperation集合，用于批量处理删除操作
        ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
        for (long id : ids) {
            // 检查是否为系统文件夹根目录，如果是则跳过
            if (id == Notes.ID_ROOT_FOLDER) {
                Log.e(TAG, "不要删除系统文件夹根目录");
                continue;
            }
            // 创建删除笔记的ContentProviderOperation.Builder对象
            ContentProviderOperation.Builder builder = ContentProviderOperation
                    .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
            // 将删除操作添加到集合中
            operationList.add(builder.build());
        }
        try {
            // 应用批量操作
            ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
            // 检查删除是否成功
            if (results == null || results.length == 0 || results[0] == null) {
                Log.d(TAG, "删除笔记失败，ids:" + ids.toString());
                return false;
            }
            return true;
        } catch (RemoteException e) {
            Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
        } catch (OperationApplicationException e) {
            Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
        }
        return false;
    }

    /**
     * 将笔记移动到指定文件夹方法
     *
     * @param resolver     ContentResolver对象，用于访问应用数据
     * @param id           要移动的笔记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) {
        // 准备ContentValues对象，用于更新笔记的父文件夹信息
        ContentValues values = new ContentValues();
        values.put(NoteColumns.PARENT_ID, desFolderId);
        values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId);
        values.put(NoteColumns.LOCAL_MODIFIED, 1);
        // 执行更新操作
        resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null);
    }
}


    /**
     * Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}}
     */
    /**
     * 获取用户文件夹的数量
     *
     * @param resolver ContentResolver对象，用于访问应用数据
     * @return 用户文件夹的数量
     */
    public static int getUserFolderCount(ContentResolver resolver) {
        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 {
                    count = cursor.getInt(0);
                } catch (IndexOutOfBoundsException e) {
                    Log.e(TAG, "获取文件夹数量失败：" + e.toString());
                } finally {
                    cursor.close();
                }
            }
        }
        return count;
    }

    /**
     * 检查笔记是否在数据库中可见
     *
     * @param resolver ContentResolver对象，用于访问应用数据
     * @param noteId   笔记的ID
     * @param type     笔记的类型
     * @return 笔记是否在数据库中可见
     */
    public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
        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) {
            if (cursor.getCount() > 0) {
                exist = true;
            }
            cursor.close();
        }
        return exist;
    }

    /**
     * 检查笔记是否存在于数据库中
     *
     * @param resolver ContentResolver对象，用于访问应用数据
     * @param noteId   笔记的ID
     * @return 笔记是否存在于数据库中
     */
    public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) {
        Cursor cursor = resolver.query(
                ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
                null,
                null,
                null,
                null
        );

        boolean exist = false;
        if (cursor != null) {
            if (cursor.getCount() > 0) {
                exist = true;
            }
            cursor.close();
        }
        return exist;
    }


    /**
     * 判断给定的数据ID是否存在于数据数据库中。
     *
     * @param resolver 用于访问ContentProvider的ContentResolver对象。
     * @param dataId 要检查的数据ID。
     * @return 如果数据存在则返回true，否则返回false。
     */
    public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {
        // 通过ContentUris构建带有指定数据ID的URI，并查询相应的数据。
        Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId),
                null, null, null, null);

        boolean exist = false;
        if (cursor != null) {
            // 如果查询到的数据行数大于0，则说明数据存在。
            if (cursor.getCount() > 0) {
                exist = true;
            }
            cursor.close();
        }
        return exist;
    }

    /**
     * 检查给定名称的可见文件夹是否存在。
     *
     * @param resolver 用于访问ContentProvider的ContentResolver对象。
     * @param name 要检查的文件夹名称。
     * @return 如果文件夹存在则返回true，否则返回false。
     */
    public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {
        // 查询所有类型为文件夹、非在垃圾桶中的，并且具有指定名称的便签。
        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) {
            // 如果查询到的数据行数大于0，则说明文件夹存在。
            if(cursor.getCount() > 0) {
                exist = true;
            }
            cursor.close();
        }
        return exist;
    }


    /**
     * 获取文件夹笔记小部件信息。
     *
     * @param resolver 用于访问ContentProvider的ContentResolver对象。
     * @param folderId 要检索小部件信息的文件夹ID。
     * @return 包含小部件属性的HashSet集合，如果没有数据则返回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;
    }

    /**
     * 通过笔记ID获取通话号码。
     *
     * @param resolver 用于访问ContentProvider的ContentResolver对象。
     * @param noteId 要检索通话号码的笔记ID。
     * @return 笔记相关的通话号码，如果没有找到则返回空字符串。
     */
    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, "获取通话号码失败 " + e.toString());
            } finally {
                cursor.close();
            }
        }
        return "";
    }

    public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) {
        // 查询通话笔记的数据
        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 {
                    // 获取通话笔记的ID并返回
                    return cursor.getLong(0);
                } catch (IndexOutOfBoundsException e) {
                    // 处理异常，记录错误日志
                    Log.e(TAG, "Get call note id fails " + e.toString());
                }
            }
            cursor.close();
        }
        // 如果没有匹配的通话笔记，则返回0
        return 0;
    }

    public static String getSnippetById(ContentResolver resolver, long noteId) {
        // 根据通话笔记的ID查询相应的摘要信息
        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()) {
                // 获取摘要信息并返回
                snippet = cursor.getString(0);
            }
            cursor.close();
            return snippet;
        }
        // 如果未找到匹配的通话笔记，则抛出异常
        throw new IllegalArgumentException("Note is not found with id: " + noteId);
    }

    public static String getFormattedSnippet(String snippet) {
        // 格式化摘要信息，去除首尾空格并截取第一行
        if (snippet != null) {
            snippet = snippet.trim();
            int index = snippet.indexOf('\n');
            if (index != -1) {
                snippet = snippet.substring(0, index);
            }
        }
        return snippet;
    }