| /* |
| * 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.glacier.blobstore.strategy.internal; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| import org.jclouds.blobstore.domain.Blob; |
| import org.jclouds.glacier.GlacierClient; |
| import org.jclouds.glacier.blobstore.strategy.MultipartUploadStrategy; |
| import org.jclouds.glacier.blobstore.strategy.PayloadSlice; |
| import org.jclouds.glacier.blobstore.strategy.SlicingStrategy; |
| |
| import com.google.common.collect.ImmutableMap; |
| import com.google.common.hash.HashCode; |
| import com.google.inject.Inject; |
| import com.google.inject.Singleton; |
| |
| /** |
| * Base implementation of MultipartUploadStrategy. |
| * This implementation uploads the parts sequentially. |
| */ |
| @Singleton |
| public class SequentialMultipartUploadStrategy implements MultipartUploadStrategy { |
| private final GlacierClient client; |
| private final SlicingStrategy slicer; |
| |
| @Inject |
| public SequentialMultipartUploadStrategy(GlacierClient client, SlicingStrategy slicer) { |
| this.client = checkNotNull(client, "client"); |
| this.slicer = checkNotNull(slicer, "slicer"); |
| } |
| |
| @Override |
| public String execute(String container, Blob blob) { |
| slicer.startSlicing(blob.getPayload()); |
| String uploadId = client.initiateMultipartUpload(container, slicer.getPartSizeInMB(), |
| blob.getMetadata().getName()); |
| try { |
| ImmutableMap.Builder<Integer, HashCode> hashes = ImmutableMap.builder(); |
| while (slicer.hasNext()) { |
| PayloadSlice slice = slicer.nextSlice(); |
| hashes.put(slice.getPart(), |
| client.uploadPart(container, uploadId, slice.getRange(), slice.getPayload())); |
| } |
| return client.completeMultipartUpload(container, uploadId, hashes.build(), |
| blob.getPayload().getContentMetadata().getContentLength()); |
| } catch (RuntimeException exception) { |
| client.abortMultipartUpload(container, uploadId); |
| throw exception; |
| } |
| } |
| } |