hadoop CosNCopyFileContext 源码
haddop CosNCopyFileContext 代码
文件路径：/hadoop-cloud-storage-project/hadoop-cos/src/main/java/org/apache/hadoop/fs/cosn/CosNCopyFileContext.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.cosn;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.ReentrantLock;
/**
* The context of the copy task, including concurrency control,
* asynchronous acquisition of copy results and etc.
*/
public class CosNCopyFileContext {
private final ReentrantLock lock = new ReentrantLock();
private Condition readyCondition = lock.newCondition();
private AtomicBoolean copySuccess = new AtomicBoolean(true);
private AtomicInteger copiesFinish = new AtomicInteger(0);
public void lock() {
this.lock.lock();
}
public void unlock() {
this.lock.unlock();
}
public void awaitAllFinish(int waitCopiesFinish) throws InterruptedException {
while (this.copiesFinish.get() != waitCopiesFinish) {
this.readyCondition.await();
}
}
public void signalAll() {
this.readyCondition.signalAll();
}
public boolean isCopySuccess() {
return this.copySuccess.get();
}
public void setCopySuccess(boolean copySuccess) {
this.copySuccess.set(copySuccess);
}
public void incCopiesFinish() {
this.copiesFinish.addAndGet(1);
}
}
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