/**
* Licensed to jclouds, Inc. (jclouds) under one or more
* contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. jclouds 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.aws.s3.blobstore;
import static org.jclouds.s3.domain.ObjectMetadata.StorageClass.REDUCED_REDUNDANCY;
import java.util.Set;
import javax.inject.Inject;
import javax.inject.Provider;
import org.jclouds.aws.s3.AWSS3ApiMetadata;
import org.jclouds.aws.s3.AWSS3Client;
import org.jclouds.aws.s3.blobstore.options.AWSS3PutObjectOptions;
import org.jclouds.aws.s3.blobstore.options.AWSS3PutOptions;
import org.jclouds.aws.s3.blobstore.strategy.MultipartUploadStrategy;
import org.jclouds.blobstore.BlobStoreContext;
import org.jclouds.blobstore.domain.Blob;
import org.jclouds.blobstore.domain.PageSet;
import org.jclouds.blobstore.domain.StorageMetadata;
import org.jclouds.blobstore.functions.BlobToHttpGetOptions;
import org.jclouds.blobstore.options.PutOptions;
import org.jclouds.blobstore.strategy.internal.FetchBlobMetadata;
import org.jclouds.blobstore.util.BlobUtils;
import org.jclouds.collect.Memoized;
import org.jclouds.domain.Location;
import org.jclouds.s3.blobstore.S3BlobStore;
import org.jclouds.s3.blobstore.functions.BlobToObject;
import org.jclouds.s3.blobstore.functions.BucketToResourceList;
import org.jclouds.s3.blobstore.functions.ContainerToBucketListOptions;
import org.jclouds.s3.blobstore.functions.ObjectToBlob;
import org.jclouds.s3.blobstore.functions.ObjectToBlobMetadata;
import org.jclouds.s3.domain.AccessControlList;
import org.jclouds.s3.domain.BucketMetadata;
import org.jclouds.s3.domain.CannedAccessPolicy;
import org.jclouds.s3.domain.ObjectMetadata;
import com.google.common.base.Function;
import com.google.common.base.Supplier;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
/**
* Provide AWS S3 specific extensions.
*
* @author Tibor Kiss, Andrei Savu
*/
public class AWSS3BlobStore extends S3BlobStore {
private final Provider<MultipartUploadStrategy> multipartUploadStrategy;
private final LoadingCache<String, AccessControlList> bucketAcls;
private final BlobToObject blob2Object;
@Inject
AWSS3BlobStore(BlobStoreContext context, BlobUtils blobUtils, Supplier<Location> defaultLocation,
@Memoized Supplier<Set<? extends Location>> locations, AWSS3Client sync,
Function<Set<BucketMetadata>, PageSet<? extends StorageMetadata>> convertBucketsToStorageMetadata,
ContainerToBucketListOptions container2BucketListOptions, BucketToResourceList bucket2ResourceList,
ObjectToBlob object2Blob, BlobToHttpGetOptions blob2ObjectGetOptions, BlobToObject blob2Object,
ObjectToBlobMetadata object2BlobMd, Provider<FetchBlobMetadata> fetchBlobMetadataProvider,
LoadingCache<String, AccessControlList> bucketAcls,
Provider<MultipartUploadStrategy> multipartUploadStrategy) {
super(context, blobUtils, defaultLocation, locations, sync, convertBucketsToStorageMetadata,
container2BucketListOptions, bucket2ResourceList, object2Blob, blob2ObjectGetOptions, blob2Object,
object2BlobMd, fetchBlobMetadataProvider, bucketAcls);
this.multipartUploadStrategy = multipartUploadStrategy;
this.bucketAcls = bucketAcls;
this.blob2Object = blob2Object;
}
@Override
public String putBlob(String container, Blob blob, PutOptions options) {
if (options.isMultipart()) {
// need to use a provider if the strategy object is stateful
return multipartUploadStrategy.get().execute(container, blob);
} else if ((options instanceof AWSS3PutOptions) &&
(((AWSS3PutOptions) options).getStorageClass() == REDUCED_REDUNDANCY)) {
return putBlobWithReducedRedundancy(container, blob);
} else {
return super.putBlob(container, blob, options);
}
}
private String putBlobWithReducedRedundancy(String container, Blob blob) {
AWSS3PutObjectOptions options = new AWSS3PutObjectOptions();
try {
AccessControlList acl = bucketAcls.getUnchecked(container);
if (acl != null && acl.hasPermission(AccessControlList.GroupGranteeURI.ALL_USERS,
AccessControlList.Permission.READ)) {
options.withAcl(CannedAccessPolicy.PUBLIC_READ);
}
options.storageClass(ObjectMetadata.StorageClass.REDUCED_REDUNDANCY);
} catch (CacheLoader.InvalidCacheLoadException e) {
// nulls not permitted from cache loader
}
return getContext().unwrap(AWSS3ApiMetadata.CONTEXT_TOKEN).getApi().putObject(container, blob2Object.apply(blob),
options);
}
}