| /* |
| * 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.apache.hadoop.fs.s3a; |
| |
| import com.amazonaws.event.ProgressEvent; |
| import com.amazonaws.event.ProgressEventType; |
| import com.amazonaws.event.ProgressListener; |
| import com.amazonaws.services.s3.transfer.Upload; |
| import org.apache.hadoop.util.Progressable; |
| import org.slf4j.Logger; |
| |
| import static com.amazonaws.event.ProgressEventType.TRANSFER_COMPLETED_EVENT; |
| import static com.amazonaws.event.ProgressEventType.TRANSFER_PART_STARTED_EVENT; |
| |
| /** |
| * Listener to progress from AWS regarding transfers. |
| */ |
| public class ProgressableProgressListener implements ProgressListener { |
| private static final Logger LOG = S3AFileSystem.LOG; |
| private final S3AFileSystem fs; |
| private final String key; |
| private final Progressable progress; |
| private long lastBytesTransferred; |
| private final Upload upload; |
| |
| /** |
| * Instantiate. |
| * @param fs filesystem: will be invoked with statistics updates |
| * @param key key for the upload |
| * @param upload source of events |
| * @param progress optional callback for progress. |
| */ |
| public ProgressableProgressListener(S3AFileSystem fs, |
| String key, |
| Upload upload, |
| Progressable progress) { |
| this.fs = fs; |
| this.key = key; |
| this.upload = upload; |
| this.progress = progress; |
| this.lastBytesTransferred = 0; |
| } |
| |
| @Override |
| public void progressChanged(ProgressEvent progressEvent) { |
| if (progress != null) { |
| progress.progress(); |
| } |
| |
| // There are 3 http ops here, but this should be close enough for now |
| ProgressEventType pet = progressEvent.getEventType(); |
| if (pet == TRANSFER_PART_STARTED_EVENT || |
| pet == TRANSFER_COMPLETED_EVENT) { |
| fs.incrementWriteOperations(); |
| } |
| |
| long transferred = upload.getProgress().getBytesTransferred(); |
| long delta = transferred - lastBytesTransferred; |
| fs.incrementPutProgressStatistics(key, delta); |
| lastBytesTransferred = transferred; |
| } |
| |
| /** |
| * Method to invoke after upload has completed. |
| * This can handle race conditions in setup/teardown. |
| * @return the number of bytes which were transferred after the notification |
| */ |
| public long uploadCompleted() { |
| long delta = upload.getProgress().getBytesTransferred() - |
| lastBytesTransferred; |
| if (delta > 0) { |
| LOG.debug("S3A write delta changed after finished: {} bytes", delta); |
| fs.incrementPutProgressStatistics(key, delta); |
| } |
| return delta; |
| } |
| |
| } |