org.apache.jackrabbit.oak.segment.remote.WriteAccessController Maven / Gradle / Ivy
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/*
* 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.jackrabbit.oak.segment.remote;
public class WriteAccessController {
private volatile boolean isWritingAllowed = false;
private Object lock = new Object();
public void disableWriting() {
this.isWritingAllowed = false;
}
public void enableWriting() {
this.isWritingAllowed = true;
synchronized (lock) {
lock.notifyAll();
}
}
public void checkWritingAllowed() {
while (!isWritingAllowed) {
synchronized (lock) {
if (isWritingAllowed) {
return;
}
try {
lock.wait();
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
throw new RuntimeException("Interrupted while waiting for writing to be allowed", e);
}
}
}
}
}