backup.store.s3.S3BackupStoreUtil.java Source code

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Here is the source code for backup.store.s3.S3BackupStoreUtil.java

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/*
 * Copyright 2016 Fortitude Technologies LLC
 * 
 * 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 backup.store.s3;

import java.util.List;

import com.amazonaws.auth.DefaultAWSCredentialsProviderChain;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.model.ObjectListing;
import com.amazonaws.services.s3.model.S3ObjectSummary;

public class S3BackupStoreUtil {

    public static void removeBucket(String bucketName) throws Exception {
        removeAllObjects(bucketName);
        AmazonS3Client client = new AmazonS3Client(new DefaultAWSCredentialsProviderChain());
        client.deleteBucket(bucketName);
    }

    public static void removeAllObjects(String bucketName) throws Exception {
        AmazonS3Client client = new AmazonS3Client(new DefaultAWSCredentialsProviderChain());
        ObjectListing listObjects = client.listObjects(bucketName);
        List<S3ObjectSummary> objectSummaries = listObjects.getObjectSummaries();
        for (S3ObjectSummary objectSummary : objectSummaries) {
            String key = objectSummary.getKey();
            client.deleteObject(bucketName, key);
        }
    }

    public static void removeAllObjects(String bucketName, String prefix) throws Exception {
        AmazonS3Client client = new AmazonS3Client(new DefaultAWSCredentialsProviderChain());
        ObjectListing listObjects = client.listObjects(bucketName);
        List<S3ObjectSummary> objectSummaries = listObjects.getObjectSummaries();
        for (S3ObjectSummary objectSummary : objectSummaries) {
            String key = objectSummary.getKey();
            if (key.startsWith(prefix)) {
                client.deleteObject(bucketName, key);
            }
        }
    }

    public static boolean exists(String bucketName) throws Exception {
        AmazonS3Client client = new AmazonS3Client(new DefaultAWSCredentialsProviderChain());
        return client.doesBucketExist(bucketName);
    }

    public static void createBucket(String bucketName) throws Exception {
        AmazonS3Client client = new AmazonS3Client(new DefaultAWSCredentialsProviderChain());
        client.createBucket(bucketName);
    }
}