com.dongli.model.MyAWSStorage.java Source code

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Here is the source code for com.dongli.model.MyAWSStorage.java

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/** File:      MyAWSStorage.java
 ** Author:      Dongli Zhang
 ** Contact:   dongli.zhang0129@gmail.com
 **
 ** Copyright (C) Dongli Zhang 2014
 **
 ** This program is free software;  you can redistribute it and/or modify
 ** it under the terms of the GNU General Public License as published by
 ** the Free Software Foundation; either version 2 of the License, or
 ** (at your option) any later version.
 **
 ** This program is distributed in the hope that it will be useful,
 ** but WITHOUT ANY WARRANTY;  without even the implied warranty of
 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
 ** the GNU General Public License for more details.
 **
 ** You should have received a copy of the GNU General Public License
 ** along with this program;  if not, write to the Free Software 
 ** Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

/* 
 * This is a singleton class to maintain a persistent AmazonS3Client instance.
 */

package com.dongli.model;

import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.services.s3.AmazonS3Client;

public class MyAWSStorage {
    private static MyAWSStorage myAWSStorage;
    private AWSCredentials myCredentials;
    // This s3client will be used by other classes
    public AmazonS3Client s3client;

    private MyAWSStorage() {
        myCredentials = new BasicAWSCredentials(MyConfiguration.getInstance().accessKey,
                MyConfiguration.getInstance().secretKey);
        s3client = new AmazonS3Client(myCredentials);
    }

    public static MyAWSStorage getInstance() {
        if (myAWSStorage == null)
            myAWSStorage = new MyAWSStorage();
        return myAWSStorage;
    }
}