| /** |
| * 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.response.key; |
| |
| import org.apache.hadoop.ozone.om.OMMetadataManager; |
| import org.apache.hadoop.ozone.om.helpers.OmKeyInfo; |
| import org.apache.hadoop.ozone.om.response.OMClientResponse; |
| import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos; |
| import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos |
| .OMResponse; |
| import org.apache.hadoop.hdds.utils.db.BatchOperation; |
| |
| import java.io.IOException; |
| import javax.annotation.Nullable; |
| import javax.annotation.Nonnull; |
| |
| /** |
| * Response for RenameKey request. |
| */ |
| public class OMKeyRenameResponse extends OMClientResponse { |
| |
| private final OmKeyInfo renameKeyInfo; |
| private final String toKeyName; |
| private final String fromKeyName; |
| |
| public OMKeyRenameResponse(@Nullable OmKeyInfo renameKeyInfo, |
| String toKeyName, String fromKeyName, @Nonnull OMResponse omResponse) { |
| super(omResponse); |
| this.renameKeyInfo = renameKeyInfo; |
| this.toKeyName = toKeyName; |
| this.fromKeyName = fromKeyName; |
| } |
| |
| @Override |
| public void addToDBBatch(OMMetadataManager omMetadataManager, |
| BatchOperation batchOperation) throws IOException { |
| // For OmResponse with failure, this should do nothing. This method is |
| // not called in failure scenario in OM code. |
| if (getOMResponse().getStatus() == OzoneManagerProtocolProtos.Status.OK) { |
| |
| // If both from and toKeyName are equal do nothing |
| if (!toKeyName.equals(fromKeyName)) { |
| String volumeName = renameKeyInfo.getVolumeName(); |
| String bucketName = renameKeyInfo.getBucketName(); |
| omMetadataManager.getKeyTable().deleteWithBatch(batchOperation, |
| omMetadataManager.getOzoneKey(volumeName, bucketName, fromKeyName)); |
| omMetadataManager.getKeyTable().putWithBatch(batchOperation, |
| omMetadataManager.getOzoneKey(volumeName, bucketName, toKeyName), |
| renameKeyInfo); |
| } |
| } |
| } |
| } |