/*
* 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.hpcloud.objectstorage.blobstore.config;
import static com.google.common.base.Preconditions.checkArgument;
import java.net.URI;
import java.util.NoSuchElementException;
import java.util.concurrent.TimeUnit;
import javax.annotation.Resource;
import javax.inject.Inject;
import javax.inject.Singleton;
import org.jclouds.blobstore.AsyncBlobStore;
import org.jclouds.blobstore.BlobStore;
import org.jclouds.blobstore.attr.ConsistencyModel;
import org.jclouds.hpcloud.objectstorage.HPCloudObjectStorageApi;
import org.jclouds.hpcloud.objectstorage.blobstore.HPCloudObjectStorageAsyncBlobStore;
import org.jclouds.hpcloud.objectstorage.blobstore.HPCloudObjectStorageBlobStore;
import org.jclouds.hpcloud.objectstorage.blobstore.functions.HPCloudObjectStorageObjectToBlobMetadata;
import org.jclouds.hpcloud.objectstorage.domain.CDNContainer;
import org.jclouds.hpcloud.objectstorage.extensions.CDNContainerApi;
import org.jclouds.http.HttpResponseException;
import org.jclouds.logging.Logger;
import org.jclouds.openstack.swift.blobstore.config.SwiftBlobStoreContextModule;
import org.jclouds.openstack.swift.blobstore.functions.ObjectToBlobMetadata;
import com.google.common.annotations.Beta;
import com.google.common.base.Optional;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import com.google.inject.Provides;
/**
*
* @author Adrian Cole
*/
public class HPCloudObjectStorageBlobStoreContextModule extends SwiftBlobStoreContextModule {
@Beta
@Singleton
public static final class GetCDNMetadata extends CacheLoader<String, URI> {
@Resource
protected Logger logger = Logger.NULL;
private final HPCloudObjectStorageApi client;
@Inject
public GetCDNMetadata(HPCloudObjectStorageApi client) {
this.client = client;
}
@Override
public URI load(String container) {
Optional<CDNContainerApi> cdnExtension = client.getCDNExtension();
checkArgument(cdnExtension.isPresent(), "CDN is required, but the extension is not available!");
try {
CDNContainer md = cdnExtension.get().get(container);
return md != null ? md.getCDNUri() : null;
} catch (HttpResponseException e) {
// TODO: this is due to beta status
logger.trace("couldn't get cdn metadata for %s: %s", container, e.getMessage());
return null;
} catch (NoSuchElementException e) {
logger.trace("CDN may not be enabled. Couldn't get cdn metadata for %s: %s", container, e.getMessage());
return null;
}
}
@Override
public String toString() {
return "get()";
}
}
@Provides
@Singleton
protected LoadingCache<String, URI> cdnContainer(GetCDNMetadata loader) {
return CacheBuilder.newBuilder().expireAfterWrite(30, TimeUnit.SECONDS).build(loader);
}
@Override
protected void configure() {
bind(ConsistencyModel.class).toInstance(ConsistencyModel.STRICT);
bind(AsyncBlobStore.class).to(HPCloudObjectStorageAsyncBlobStore.class);
bind(BlobStore.class).to(HPCloudObjectStorageBlobStore.class);
bind(ObjectToBlobMetadata.class).to(HPCloudObjectStorageObjectToBlobMetadata.class);
}
}