org.jclouds.blobstore.strategy.internal.PutBlobsStrategyImpl.java Source code

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Here is the source code for org.jclouds.blobstore.strategy.internal.PutBlobsStrategyImpl.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.blobstore.strategy.internal;

import static com.google.common.base.Throwables.propagate;
import static org.jclouds.concurrent.FutureIterables.awaitCompletion;

import java.util.Map;
import java.util.concurrent.TimeoutException;

import javax.annotation.Resource;
import javax.inject.Named;
import javax.inject.Singleton;

import org.jclouds.Constants;
import org.jclouds.blobstore.AsyncBlobStore;
import org.jclouds.blobstore.domain.Blob;
import org.jclouds.blobstore.internal.BlobRuntimeException;
import org.jclouds.blobstore.reference.BlobStoreConstants;
import org.jclouds.blobstore.strategy.PutBlobsStrategy;
import org.jclouds.logging.Logger;

import com.google.common.collect.Maps;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.ListeningExecutorService;
import com.google.inject.Inject;

/**
 * 
 * @author Adrian Cole
 */
@Singleton
public class PutBlobsStrategyImpl implements PutBlobsStrategy {

    private final AsyncBlobStore ablobstore;
    private final ListeningExecutorService userExecutor;
    @Resource
    @Named(BlobStoreConstants.BLOBSTORE_LOGGER)
    protected Logger logger = Logger.NULL;
    /**
     * maximum duration of an blob Request
     */
    @Inject(optional = true)
    @Named(Constants.PROPERTY_REQUEST_TIMEOUT)
    protected Long maxTime;

    @Inject
    PutBlobsStrategyImpl(@Named(Constants.PROPERTY_USER_THREADS) ListeningExecutorService userExecutor,
            AsyncBlobStore ablobstore) {
        this.userExecutor = userExecutor;
        this.ablobstore = ablobstore;
    }

    @Override
    public void execute(String containerName, Iterable<? extends Blob> blobs) {
        Map<Blob, ListenableFuture<?>> responses = Maps.newLinkedHashMap();
        for (Blob blob : blobs) {
            responses.put(blob, ablobstore.putBlob(containerName, blob));
        }
        Map<Blob, Exception> exceptions;
        try {
            exceptions = awaitCompletion(responses, userExecutor, maxTime, logger,
                    String.format("putting into containerName: %s", containerName));
        } catch (TimeoutException te) {
            throw propagate(te);
        }
        if (exceptions.size() > 0)
            throw new BlobRuntimeException(
                    String.format("error putting into container %s: %s", containerName, exceptions));
    }

}