org.jclouds.cloudfiles.blobstore.config.CloudFilesBlobStoreContextModule.java Source code

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Here is the source code for org.jclouds.cloudfiles.blobstore.config.CloudFilesBlobStoreContextModule.java

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/*
 * 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.cloudfiles.blobstore.config;

import java.net.URI;
import java.util.concurrent.TimeUnit;

import javax.inject.Singleton;

import org.jclouds.cloudfiles.CloudFilesClient;
import org.jclouds.cloudfiles.blobstore.CloudFilesAsyncBlobStore;
import org.jclouds.cloudfiles.blobstore.CloudFilesBlobStore;
import org.jclouds.cloudfiles.blobstore.functions.CloudFilesObjectToBlobMetadata;
import org.jclouds.cloudfiles.domain.ContainerCDNMetadata;
import org.jclouds.openstack.swift.blobstore.SwiftAsyncBlobStore;
import org.jclouds.openstack.swift.blobstore.SwiftBlobStore;
import org.jclouds.openstack.swift.blobstore.config.SwiftBlobStoreContextModule;
import org.jclouds.openstack.swift.blobstore.functions.ObjectToBlobMetadata;

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 CloudFilesBlobStoreContextModule extends SwiftBlobStoreContextModule {

    @Provides
    @Singleton
    protected LoadingCache<String, URI> cdnContainer(final CloudFilesClient client) {
        return CacheBuilder.newBuilder().expireAfterWrite(30, TimeUnit.SECONDS)
                .build(new CacheLoader<String, URI>() {
                    @Override
                    public URI load(String container) {
                        ContainerCDNMetadata md = client.getCDNMetadata(container);
                        return md != null ? md.getCDNUri() : null;
                    }

                    @Override
                    public String toString() {
                        return "getCDNMetadata()";
                    }
                });
    }

    @Override
    protected void configure() {
        super.configure();
        bind(SwiftBlobStore.class).to(CloudFilesBlobStore.class);
        bind(SwiftAsyncBlobStore.class).to(CloudFilesAsyncBlobStore.class);
        bind(ObjectToBlobMetadata.class).to(CloudFilesObjectToBlobMetadata.class);
    }
}