hadoop AliyunOSSCopyFileContext 源码
haddop AliyunOSSCopyFileContext 代码
文件路径：/hadoop-tools/hadoop-aliyun/src/main/java/org/apache/hadoop/fs/aliyun/oss/AliyunOSSCopyFileContext.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 java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.ReentrantLock;
/**
* Used by {@link AliyunOSSFileSystem} and {@link AliyunOSSCopyFileTask}
* as copy context. It contains some variables used in copy process.
*/
public class AliyunOSSCopyFileContext {
private final ReentrantLock lock = new ReentrantLock();
private Condition readyCondition = lock.newCondition();
private boolean copyFailure;
private int copiesFinish;
public AliyunOSSCopyFileContext() {
copyFailure = false;
copiesFinish = 0;
}
public void lock() {
lock.lock();
}
public void unlock() {
lock.unlock();
}
public void awaitAllFinish(int copiesToFinish) throws InterruptedException {
while (this.copiesFinish != copiesToFinish) {
readyCondition.await();
}
}
public void signalAll() {
readyCondition.signalAll();
}
public boolean isCopyFailure() {
return copyFailure;
}
public void setCopyFailure(boolean copyFailure) {
this.copyFailure = copyFailure;
}
public void incCopiesFinish() {
++copiesFinish;
}
}
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