content: /*
   * 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 org.apache.asterix.common.cluster.IClusterStateManager;
  import org.apache.asterix.common.dataflow.ICcApplicationContext;
  import org.apache.asterix.common.messaging.api.ICCMessageBroker;
  import org.apache.asterix.common.messaging.api.ICcAddressedMessage;
  import org.apache.asterix.common.transactions.IResourceIdManager;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  
  public class ResourceIdRequestMessage implements ICcAddressedMessage {
      private static final long serialVersionUID = 2L;
      private final String src;
      private final int blockSize;
  
      public ResourceIdRequestMessage(String src, int blockSize) {
          this.src = src;
          this.blockSize = blockSize;
      }
  
      @Override
      public void handle(ICcApplicationContext appCtx) throws HyracksDataException, InterruptedException {
          try {
              ICCMessageBroker broker = (ICCMessageBroker) appCtx.getServiceContext().getMessageBroker();
              ResourceIdRequestResponseMessage response = new ResourceIdRequestResponseMessage();
              IClusterStateManager clusterStateManager = appCtx.getClusterStateManager();
              IResourceIdManager resourceIdManager = appCtx.getResourceIdManager();
              response.setResourceIdBlock(resourceIdManager.createResourceIdBlock(blockSize), blockSize);
              if (response.getResourceId() < 0) {
                  if (!(clusterStateManager.isClusterActive())) {
                      response.setException(
                              new Exception("Cannot generate global resource id(s) when cluster is not active."));
                  } else {
                      response.setException(new Exception("One or more nodes has not reported max resource id."));
                  }
              }
              broker.sendRealTimeApplicationMessageToNC(response, src);
          } catch (Exception e) {
              throw HyracksDataException.create(e);
          }
      }
  
      @Override
      public String toString() {
          return ResourceIdRequestMessage.class.getSimpleName();
      }
  }
  