hadoop AliyunOSSCopyFileTask 源码
haddop AliyunOSSCopyFileTask 代码
文件路径：/hadoop-tools/hadoop-aliyun/src/main/java/org/apache/hadoop/fs/aliyun/oss/AliyunOSSCopyFileTask.java
/**
* 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
* <p/>
* http://www.apache.org/licenses/LICENSE-2.0
* <p/>
* 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.aliyun.oss;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Used by {@link AliyunOSSFileSystem} as an task that submitted
* to the thread pool to accelerate the copy progress.
* Each AliyunOSSCopyFileTask copies one file from src path to dst path
*/
public class AliyunOSSCopyFileTask implements Runnable {
public static final Logger LOG =
LoggerFactory.getLogger(AliyunOSSCopyFileTask.class);
private AliyunOSSFileSystemStore store;
private String srcKey;
private long srcLen;
private String dstKey;
private AliyunOSSCopyFileContext copyFileContext;
public AliyunOSSCopyFileTask(AliyunOSSFileSystemStore store,
String srcKey, long srcLen,
String dstKey, AliyunOSSCopyFileContext copyFileContext) {
this.store = store;
this.srcKey = srcKey;
this.srcLen = srcLen;
this.dstKey = dstKey;
this.copyFileContext = copyFileContext;
}
@Override
public void run() {
boolean fail = false;
try {
fail = !store.copyFile(srcKey, srcLen, dstKey);
} catch (Exception e) {
LOG.warn("Exception thrown when copy from "
+ srcKey + " to " + dstKey + ", exception: " + e);
fail = true;
} finally {
copyFileContext.lock();
if (fail) {
copyFileContext.setCopyFailure(fail);
}
copyFileContext.incCopiesFinish();
copyFileContext.signalAll();
copyFileContext.unlock();
}
}
}
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