MentionWeiboTimeLineDBTask.java

package com.jasonchen.microlang.database;

import android.database.Cursor;
import android.database.DatabaseUtils;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.text.TextUtils;

import com.google.gson.Gson;
import com.google.gson.JsonSyntaxException;
import com.jasonchen.microlang.beans.MessageBean;
import com.jasonchen.microlang.beans.MessageListBean;
import com.jasonchen.microlang.database.table.RepostsTable;
import com.jasonchen.microlang.debug.AppLogger;
import com.jasonchen.microlang.utils.AppConfig;

import java.util.ArrayList;
import java.util.List;

/**
 * jasonchen
 * 2015/04/10
 */
public class MentionWeiboTimeLineDBTask {

    private MentionWeiboTimeLineDBTask() {

    }

    private static SQLiteDatabase getWsd() {

        DatabaseHelper databaseHelper = DatabaseHelper.getInstance();
        return databaseHelper.getWritableDatabase();
    }

    private static SQLiteDatabase getRsd() {
        DatabaseHelper databaseHelper = DatabaseHelper.getInstance();
        return databaseHelper.getReadableDatabase();
    }

    public static MessageListBean getRepostLineMsgList(String accountId, int total) {

        Gson gson = new Gson();
        MessageListBean result = new MessageListBean();

        int limit = AppConfig.DEFAULT_MSG_COUNT_50;

        List<MessageBean> msgList = new ArrayList<MessageBean>();
        String sql = "select * from " + RepostsTable.RepostDataTable.TABLE_NAME + " where "
                + RepostsTable.RepostDataTable.ACCOUNTID + "  = "
                + accountId + " order by " + RepostsTable.RepostDataTable.MBLOGID + " desc limit "
                + limit;
        Cursor c = getRsd().rawQuery(sql, null);
        while (c.moveToNext()) {
            String json = c.getString(c.getColumnIndex(RepostsTable.RepostDataTable.JSONDATA));
            if (!TextUtils.isEmpty(json)) {
                try {
                    MessageBean value = gson.fromJson(json, MessageBean.class);
                    if (!value.isMiddleUnreadItem()) {
                        value.getListViewSpannableString();
                    }
                    msgList.add(value);
                } catch (JsonSyntaxException e) {
                    AppLogger.e(e.getMessage());
                }
            } else {
                msgList.add(null);
            }
        }

        result.setStatuses(msgList);
        c.close();

        return result;
    }

    public static void addRepostLineMsg(MessageListBean list, String accountId) {
        Gson gson = new Gson();
        List<MessageBean> msgList = list.getItemList();
        int size = msgList.size();

        DatabaseUtils.InsertHelper ih = new DatabaseUtils.InsertHelper(getWsd(),
                RepostsTable.RepostDataTable.TABLE_NAME);
        final int mblogidColumn = ih.getColumnIndex(RepostsTable.RepostDataTable.MBLOGID);
        final int accountidColumn = ih.getColumnIndex(RepostsTable.RepostDataTable.ACCOUNTID);
        final int jsondataColumn = ih.getColumnIndex(RepostsTable.RepostDataTable.JSONDATA);

        try {
            getWsd().beginTransaction();
            for (int i = 0; i < size; i++) {

                MessageBean msg = msgList.get(i);
                ih.prepareForInsert();
                if (msg != null) {
                    ih.bind(mblogidColumn, msg.getId());
                    ih.bind(accountidColumn, accountId);
                    String json = gson.toJson(msg);
                    ih.bind(jsondataColumn, json);
                } else {
                    ih.bind(mblogidColumn, "-1");
                    ih.bind(accountidColumn, accountId);
                    ih.bind(jsondataColumn, "");
                }
                ih.execute();
            }
            getWsd().setTransactionSuccessful();
        } catch (SQLException e) {
        } finally {
            getWsd().endTransaction();
            ih.close();
        }
        reduceRepostTable(accountId);
    }

    public static int getTotalNumber(String accountId){
        String searchCount = "select count(" + RepostsTable.RepostDataTable.ID + ") as total"
                + " from " + RepostsTable.RepostDataTable.TABLE_NAME + " where "
                + RepostsTable.RepostDataTable.ACCOUNTID
                + " = " + accountId;
        int total = 0;
        Cursor c = getWsd().rawQuery(searchCount, null);
        if (c.moveToNext()) {
            total = c.getInt(c.getColumnIndex("total"));
        }

        c.close();
        return total;
    }

    private static void reduceRepostTable(String accountId) {
        String searchCount = "select count(" + RepostsTable.RepostDataTable.ID + ") as total"
                + " from " + RepostsTable.RepostDataTable.TABLE_NAME + " where "
                + RepostsTable.RepostDataTable.ACCOUNTID
                + " = " + accountId;
        int total = 0;
        Cursor c = getWsd().rawQuery(searchCount, null);
        if (c.moveToNext()) {
            total = c.getInt(c.getColumnIndex("total"));
        }

        c.close();

//        AppLogger.e("total=" + total);
//
//        int needDeletedNumber = total - AppConfig.DEFAULT_MENTIONS_WEIBO_DB_CACHE_COUNT;
//
//        if (needDeletedNumber > 0) {
//            AppLogger.e("" + needDeletedNumber);
//            String sql = " delete from " + RepostsTable.RepostDataTable.TABLE_NAME + " where " + RepostsTable.RepostDataTable.ID + " in "
//                    + "( select " + RepostsTable.RepostDataTable.ID + " from " + RepostsTable.RepostDataTable.TABLE_NAME + " where "
//                    + RepostsTable.RepostDataTable.ACCOUNTID
//                    + " in " + "(" + accountId + ") order by " + RepostsTable.RepostDataTable.ID + " asc limit " + needDeletedNumber + " ) ";
//
//            getWsd().execSQL(sql);
//        }
    }

    private static void replaceRepostLineMsg(MessageListBean list, String accountId) {

        deleteAllReposts(accountId);

        //need modification
//        wsd.execSQL("DROP TABLE IF EXISTS " + RepostsTable.RepostDataTable.TABLE_NAME);
//        wsd.execSQL(DatabaseHelper.CREATE_REPOSTS_TABLE_SQL);

        addRepostLineMsg(list, accountId);
    }

    static void deleteAllReposts(String accountId) {
        String sql = "delete from " + RepostsTable.RepostDataTable.TABLE_NAME + " where "
                + RepostsTable.RepostDataTable.ACCOUNTID + " in " + "(" + accountId + ")";

        getWsd().execSQL(sql);
    }
/*
    public static void asyncUpdatePosition(final TimeLinePosition position,
            final String accountId) {
        if (position == null) {
            return;
        }
        Runnable runnable = new Runnable() {
            @Override
            public void run() {
                updatePosition(position, accountId);
            }
        };

        new Thread(runnable).start();
    }

    private static void updatePosition(TimeLinePosition position, String accountId) {
        String sql = "select * from " + RepostsTable.TABLE_NAME + " where " + RepostsTable.ACCOUNTID
                + "  = "
                + accountId;
        Cursor c = getRsd().rawQuery(sql, null);
        Gson gson = new Gson();
        if (c.moveToNext()) {
            try {
                String[] args = {accountId};
                ContentValues cv = new ContentValues();
                cv.put(RepostsTable.TIMELINEDATA, gson.toJson(position));
                getWsd().update(RepostsTable.TABLE_NAME, cv, RepostsTable.ACCOUNTID + "=?", args);
            } catch (JsonSyntaxException e) {

            }
        } else {

            ContentValues cv = new ContentValues();
            cv.put(RepostsTable.ACCOUNTID, accountId);
            cv.put(RepostsTable.TIMELINEDATA, gson.toJson(position));
            getWsd().insert(RepostsTable.TABLE_NAME,
                    RepostsTable.ID, cv);
        }
    }

    public static TimeLinePosition getPosition(String accountId) {
        String sql = "select * from " + RepostsTable.TABLE_NAME + " where " + RepostsTable.ACCOUNTID
                + "  = "
                + accountId;
        Cursor c = getRsd().rawQuery(sql, null);
        Gson gson = new Gson();
        while (c.moveToNext()) {
            String json = c.getString(c.getColumnIndex(RepostsTable.TIMELINEDATA));
            if (!TextUtils.isEmpty(json)) {
                try {
                    TimeLinePosition value = gson.fromJson(json, TimeLinePosition.class);
                    c.close();
                    return value;
                } catch (JsonSyntaxException e) {
                    e.printStackTrace();
                }
            }
        }
        c.close();
        return TimeLinePosition.empty();
    }*/

    public static void asyncReplace(final MessageListBean list, final String accountId) {
        final MessageListBean data = new MessageListBean();
        data.replaceData(list);
        new Thread(new Runnable() {
            @Override
            public void run() {
                deleteAllReposts(accountId);
                addRepostLineMsg(data, accountId);
            }
        }).start();
    }
}