| /** |
| * 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.hadoop.ozone.om.lock; |
| |
| import static org.apache.hadoop.ozone.OzoneConsts.OM_KEY_PREFIX; |
| import static org.apache.hadoop.ozone.OzoneConsts.OM_PREFIX; |
| import static org.apache.hadoop.ozone.OzoneConsts.OM_S3_PREFIX; |
| import static org.apache.hadoop.ozone.OzoneConsts.OM_S3_SECRET; |
| import static org.apache.hadoop.ozone.OzoneConsts.OM_USER_PREFIX; |
| |
| /** |
| * Utility class contains helper functions required for OM lock. |
| */ |
| final class OzoneManagerLockUtil { |
| |
| |
| private OzoneManagerLockUtil() { |
| } |
| |
| /** |
| * Generate resource lock name for the given resource name. |
| * |
| * @param resource |
| * @param resourceName |
| */ |
| public static String generateResourceLockName( |
| OzoneManagerLock.Resource resource, String resourceName) { |
| |
| if (resource == OzoneManagerLock.Resource.S3_BUCKET_LOCK) { |
| return OM_S3_PREFIX + resourceName; |
| } else if (resource == OzoneManagerLock.Resource.VOLUME_LOCK) { |
| return OM_KEY_PREFIX + resourceName; |
| } else if (resource == OzoneManagerLock.Resource.USER_LOCK) { |
| return OM_USER_PREFIX + resourceName; |
| } else if (resource == OzoneManagerLock.Resource.S3_SECRET_LOCK) { |
| return OM_S3_SECRET + resourceName; |
| } else if (resource == OzoneManagerLock.Resource.PREFIX_LOCK) { |
| return OM_PREFIX + resourceName; |
| } else { |
| // This is for developers who mistakenly call this method with resource |
| // bucket type, as for bucket type we need bucket and volumeName. |
| throw new IllegalArgumentException("Bucket resource type is passed, " + |
| "to get BucketResourceLockName, use generateBucketLockName method"); |
| } |
| |
| } |
| |
| /** |
| * Generate bucket lock name. |
| * @param volumeName |
| * @param bucketName |
| */ |
| public static String generateBucketLockName(String volumeName, |
| String bucketName) { |
| return OM_KEY_PREFIX + volumeName + OM_KEY_PREFIX + bucketName; |
| |
| } |
| |
| } |