import android.content.Context;

import android.content.ContextWrapper;

import android.database.DatabaseErrorHandler;

import android.database.sqlite.SQLiteDatabase;

import com.tbc.android.defaults.app.business.cache.AppUserCache;

import com.tbc.android.defaults.app.utils.AppPathUtil;

import com.tbc.android.mc.storage.ApplicationCache;

import java.io.File;

/**

 * Created by Doraemon

 * Date: 16/5/12

 * Time: 09:22

 * Summary:该类主要用于基于GreenDao框架自定义数据库路径

 */

public class GreenDaoContext extends ContextWrapper {

    private String currentUserId;

    private Context mContext;

    public GreenDaoContext() {

        super(ApplicationCache.context);

        this.mContext = ApplicationCache.context;

        this.currentUserId = AppUserCache.userInfo.getUserId();

    }

    /**

     * 获得数据库路径，如果不存在，则创建对象

     *

     * @param dbName

     */

    @Override

    public File getDatabasePath(String dbName) {

        File baseFile = AppPathUtil.getDbCacheDir(mContext);

        StringBuffer buffer = new StringBuffer();

        buffer.append(baseFile.getPath());

        buffer.append(File.separator);

        buffer.append(currentUserId);

        buffer.append(File.separator);

        buffer.append(dbName);

        return new File(buffer.toString());

    }

    /**

     * 重载这个方法，是用来打开SD卡上的数据库的，android 2.3及以下会调用这个方法。

     *

     * @param name

     * @param mode

     * @param factory

     */

    @Override

    public SQLiteDatabase openOrCreateDatabase(String name, int mode,

                                               SQLiteDatabase.CursorFactory factory) {

        SQLiteDatabase result = SQLiteDatabase.openOrCreateDatabase(getDatabasePath(name), factory);

        return result;

    }

    /**

     * Android 4.0会调用此方法获取数据库。

     *

     * @param name

     * @param mode

     * @param factory

     * @param errorHandler

     * @see android.content.ContextWrapper#openOrCreateDatabase(java.lang.String, int,

     * android.database.sqlite.SQLiteDatabase.CursorFactory,

     * android.database.DatabaseErrorHandler)

     */

    @Override

    public SQLiteDatabase openOrCreateDatabase(String name, int mode, SQLiteDatabase.CursorFactory factory,

                                               DatabaseErrorHandler errorHandler) {

        SQLiteDatabase result = SQLiteDatabase.openOrCreateDatabase(getDatabasePath(name), factory);

        return result;

    }

}

DaoMaster.DevOpenHelper helper = new DaoMaster.DevOpenHelper(new GreenDaoContext(), "app.db", null);

SQLiteDatabase db = helper.getWritableDatabase();

// 注意：该数据库连接属于 DaoMaster，所以多个 Session 指的是相同的数据库连接。

DaoMaster daoMaster = new DaoMaster(db);

DaoSession daoSession = daoMaster.newSession();