| /* |
| * 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.Set; |
| |
| import org.apache.asterix.common.exceptions.ExceptionUtils; |
| import org.apache.asterix.common.messaging.api.IApplicationMessage; |
| import org.apache.asterix.common.messaging.api.ICCMessageBroker; |
| import org.apache.asterix.common.transactions.IAsterixResourceIdManager; |
| import org.apache.asterix.runtime.util.AsterixAppContextInfo; |
| import org.apache.asterix.runtime.util.ClusterStateManager; |
| import org.apache.hyracks.api.exceptions.HyracksDataException; |
| import org.apache.hyracks.api.service.IControllerService; |
| |
| public class ResourceIdRequestMessage implements IApplicationMessage { |
| private static final long serialVersionUID = 1L; |
| private final String src; |
| |
| public ResourceIdRequestMessage(String src) { |
| this.src = src; |
| } |
| |
| @Override |
| public void handle(IControllerService cs) throws HyracksDataException, InterruptedException { |
| try { |
| ICCMessageBroker broker = |
| (ICCMessageBroker) AsterixAppContextInfo.INSTANCE.getCCApplicationContext().getMessageBroker(); |
| ResourceIdRequestResponseMessage reponse = new ResourceIdRequestResponseMessage(); |
| if (!ClusterStateManager.INSTANCE.isClusterActive()) { |
| reponse.setResourceId(-1); |
| reponse.setException(new Exception("Cannot generate global resource id when cluster is not active.")); |
| } else { |
| IAsterixResourceIdManager resourceIdManager = |
| AsterixAppContextInfo.INSTANCE.getResourceIdManager(); |
| reponse.setResourceId(resourceIdManager.createResourceId()); |
| if (reponse.getResourceId() < 0) { |
| reponse.setException(new Exception("One or more nodes has not reported max resource id.")); |
| } |
| requestMaxResourceID(resourceIdManager, broker); |
| } |
| broker.sendApplicationMessageToNC(reponse, src); |
| } catch (Exception e) { |
| throw ExceptionUtils.convertToHyracksDataException(e); |
| } |
| } |
| |
| private void requestMaxResourceID(IAsterixResourceIdManager resourceIdManager, ICCMessageBroker broker) |
| throws Exception { |
| Set<String> getParticipantNodes = ClusterStateManager.INSTANCE.getParticipantNodes(); |
| ReportMaxResourceIdRequestMessage msg = new ReportMaxResourceIdRequestMessage(); |
| for (String nodeId : getParticipantNodes) { |
| if (!resourceIdManager.reported(nodeId)) { |
| broker.sendApplicationMessageToNC(msg, nodeId); |
| } |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return ReportMaxResourceIdRequestMessage.class.getSimpleName(); |
| } |
| } |