| /* |
| * 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.request.upgrade; |
| |
| import org.apache.hadoop.ozone.om.OzoneManager; |
| import org.apache.hadoop.ozone.om.ratis.utils.OzoneManagerDoubleBufferHelper; |
| import org.apache.hadoop.ozone.om.request.OMClientRequest; |
| import org.apache.hadoop.ozone.om.request.util.OmResponseUtil; |
| import org.apache.hadoop.ozone.om.response.OMClientResponse; |
| import org.apache.hadoop.ozone.om.response.upgrade.OMCancelPrepareResponse; |
| import org.apache.hadoop.ozone.om.response.upgrade.OMPrepareResponse; |
| import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.CancelPrepareResponse; |
| import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.OMRequest; |
| import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.OMResponse; |
| |
| import static org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.Type; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.IOException; |
| |
| public class OMCancelPrepareRequest extends OMClientRequest { |
| private static final Logger LOG = |
| LoggerFactory.getLogger(OMCancelPrepareRequest.class); |
| |
| public OMCancelPrepareRequest(OMRequest omRequest) { |
| super(omRequest); |
| } |
| |
| @Override |
| public OMClientResponse validateAndUpdateCache( |
| OzoneManager ozoneManager, long transactionLogIndex, |
| OzoneManagerDoubleBufferHelper ozoneManagerDoubleBufferHelper) { |
| |
| LOG.info("OM {} Received cancel request with log index {}", |
| ozoneManager.getOMNodeId(), transactionLogIndex); |
| |
| OMRequest omRequest = getOmRequest(); |
| OMResponse.Builder responseBuilder = |
| OmResponseUtil.getOMResponseBuilder(omRequest); |
| responseBuilder.setCmdType(Type.CancelPrepare); |
| OMClientResponse response = null; |
| |
| try { |
| // Create response. |
| CancelPrepareResponse omResponse = CancelPrepareResponse.newBuilder() |
| .build(); |
| responseBuilder.setCancelPrepareResponse(omResponse); |
| response = new OMCancelPrepareResponse(responseBuilder.build()); |
| |
| // Deletes on disk marker file, does not update DB and therefore does |
| // not update cache. |
| ozoneManager.getPrepareState().cancelPrepare(); |
| ozoneManagerDoubleBufferHelper.add(response, transactionLogIndex); |
| |
| LOG.info("OM {} prepare state cancelled at log index {}. Returning " + |
| "response {}", |
| ozoneManager.getOMNodeId(), transactionLogIndex, omResponse); |
| } catch (IOException e) { |
| LOG.error("Cancel Prepare Request apply failed in {}. ", |
| ozoneManager.getOMNodeId(), e); |
| response = new OMPrepareResponse( |
| createErrorOMResponse(responseBuilder, e)); |
| } |
| |
| return response; |
| } |
| |
| public static String getRequestType() { |
| return Type.CancelPrepare.name(); |
| } |
| } |