/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.jclouds.examples.blobstore.osgi;
import org.jclouds.blobstore.BlobStore;
import org.jclouds.blobstore.BlobStoreContext;
import org.jclouds.blobstore.BlobStoreContextFactory;
import org.jclouds.blobstore.domain.Blob;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
public class BlobStoreServiceImpl implements BlobStoreService {
private static final Logger logger = LoggerFactory.getLogger(BlobStoreServiceImpl.class);
private String accessKeyId;
private String secretKey;
private String provider;
private BlobStoreContext context;
/**
* Constructor
*/
public BlobStoreServiceImpl() {
}
public Object read(String bucket, String blobName) {
Object result = null;
ObjectInputStream ois = null;
context = new BlobStoreContextFactory().createContext(provider, accessKeyId, secretKey);
if (context != null) {
BlobStore blobStore = context.getBlobStore();
blobStore.createContainerInLocation(null, bucket);
InputStream is = blobStore.getBlob(bucket, blobName).getPayload().getInput();
try {
ois = new ObjectInputStream(is);
result = ois.readObject();
} catch (IOException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} finally {
if (ois != null) {
try {
ois.close();
} catch (IOException e) {
}
}
if (is != null) {
try {
is.close();
} catch (IOException e) {
}
}
}
} else logger.warn("Blob store context is null.");
return result;
}
public void write(String bucket, String blobName, Object object) {
context = new BlobStoreContextFactory().createContext(provider, accessKeyId, secretKey);
if (context != null) {
BlobStore blobStore = context.getBlobStore();
Blob blob = blobStore.blobBuilder(blobName).build();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutputStream oos = null;
try {
oos = new ObjectOutputStream(baos);
oos.writeObject(object);
blob.setPayload(baos.toByteArray());
blobStore.putBlob(bucket, blob);
} catch (IOException e) {
logger.error("Error while writing blob", e);
} finally {
if (oos != null) {
try {
oos.close();
} catch (IOException e) {
}
}
if (baos != null) {
try {
baos.close();
} catch (IOException e) {
}
}
}
} else logger.warn("Blob store context is null.");
}
public String getSecretKey() {
return secretKey;
}
public void setSecretKey(String secretKey) {
this.secretKey = secretKey;
}
public String getAccessKeyId() {
return accessKeyId;
}
public void setAccessKeyId(String accessKeyId) {
this.accessKeyId = accessKeyId;
}
public String getProvider() {
return provider;
}
public void setProvider(String provider) {
this.provider = provider;
}
}