| /* |
| * 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.asterix.runtime.message; |
| |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| |
| import org.apache.asterix.common.api.IAsterixAppRuntimeContext; |
| import org.apache.asterix.common.exceptions.ExceptionUtils; |
| import org.apache.asterix.common.messaging.api.IApplicationMessage; |
| import org.apache.asterix.common.messaging.api.INCMessageBroker; |
| import org.apache.hyracks.api.exceptions.HyracksDataException; |
| import org.apache.hyracks.api.service.IControllerService; |
| import org.apache.hyracks.control.nc.NodeControllerService; |
| |
| public class TakeoverMetadataNodeRequestMessage implements IApplicationMessage { |
| |
| private static final long serialVersionUID = 1L; |
| private static final Logger LOGGER = Logger.getLogger(TakeoverMetadataNodeRequestMessage.class.getName()); |
| |
| @Override |
| public void handle(IControllerService cs) throws HyracksDataException { |
| NodeControllerService ncs = (NodeControllerService) cs; |
| IAsterixAppRuntimeContext appContext = |
| (IAsterixAppRuntimeContext) ncs.getApplicationContext().getApplicationObject(); |
| INCMessageBroker broker = (INCMessageBroker) ncs.getApplicationContext().getMessageBroker(); |
| HyracksDataException hde = null; |
| try { |
| appContext.initializeMetadata(false); |
| appContext.exportMetadataNodeStub(); |
| } catch (Exception e) { |
| LOGGER.log(Level.SEVERE, "Failed taking over metadata", e); |
| hde = new HyracksDataException(e); |
| } finally { |
| TakeoverMetadataNodeResponseMessage reponse = new TakeoverMetadataNodeResponseMessage( |
| appContext.getTransactionSubsystem().getId()); |
| try { |
| broker.sendMessageToCC(reponse); |
| } catch (Exception e) { |
| LOGGER.log(Level.SEVERE, "Failed taking over metadata", e); |
| hde = ExceptionUtils.suppressIntoHyracksDataException(hde, e); |
| } |
| } |
| if (hde != null) { |
| throw hde; |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return TakeoverMetadataNodeRequestMessage.class.getSimpleName(); |
| } |
| } |