| /** |
| * 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.ozone.om.lock; |
| |
| import org.apache.hadoop.ozone.om.OMMetadataManager; |
| import org.apache.hadoop.ozone.om.request.file.OMFileRequest; |
| |
| import java.io.IOException; |
| |
| import static org.apache.hadoop.ozone.om.lock.OzoneManagerLock.Resource.BUCKET_LOCK; |
| |
| /** |
| * Implementation of OzoneLockStrategy interface. Concrete strategy for regular |
| * BUCKET_LOCK. |
| */ |
| public class RegularBucketLockStrategy implements OzoneLockStrategy { |
| |
| @Override |
| public boolean acquireWriteLock(OMMetadataManager omMetadataManager, |
| String volumeName, String bucketName, |
| String keyName) throws IOException { |
| boolean acquiredLock; |
| |
| acquiredLock = omMetadataManager.getLock() |
| .acquireWriteLock(BUCKET_LOCK, volumeName, bucketName); |
| OMFileRequest.validateBucket(omMetadataManager, volumeName, bucketName); |
| |
| return acquiredLock; |
| } |
| |
| @Override |
| public void releaseWriteLock(OMMetadataManager omMetadataManager, |
| String volumeName, String bucketName, |
| String keyName) { |
| omMetadataManager.getLock() |
| .releaseWriteLock(BUCKET_LOCK, volumeName, bucketName); |
| |
| return; |
| } |
| |
| @Override |
| public boolean acquireReadLock(OMMetadataManager omMetadataManager, |
| String volumeName, String bucketName, |
| String keyName) throws IOException { |
| boolean acquiredLock; |
| |
| acquiredLock = omMetadataManager.getLock() |
| .acquireReadLock(BUCKET_LOCK, volumeName, bucketName); |
| OMFileRequest.validateBucket(omMetadataManager, volumeName, bucketName); |
| |
| return acquiredLock; |
| } |
| |
| @Override |
| public void releaseReadLock(OMMetadataManager omMetadataManager, |
| String volumeName, String bucketName, |
| String keyName) { |
| omMetadataManager.getLock() |
| .releaseReadLock(BUCKET_LOCK, volumeName, bucketName); |
| |
| return; |
| } |
| } |