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.activemq.store.kahadb.scheduler;
  
  import java.io.DataInput;
  import java.io.DataOutput;
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.activemq.store.kahadb.disk.util.VariableMarshaller;
  
  /**
   * A VariableMarshaller instance that performs the read and write of a list of
   * JobLocation objects using the JobLocation's built in read and write methods.
   */
  class JobLocationsMarshaller extends VariableMarshaller<List<JobLocation>> {
      static JobLocationsMarshaller INSTANCE = new JobLocationsMarshaller();
  
      @Override
      public List<JobLocation> readPayload(DataInput dataIn) throws IOException {
          List<JobLocation> result = new ArrayList<JobLocation>();
          int size = dataIn.readInt();
          for (int i = 0; i < size; i++) {
              JobLocation jobLocation = new JobLocation();
              jobLocation.readExternal(dataIn);
              result.add(jobLocation);
          }
          return result;
      }
  
      @Override
      public void writePayload(List<JobLocation> value, DataOutput dataOut) throws IOException {
          dataOut.writeInt(value.size());
          for (JobLocation jobLocation : value) {
              jobLocation.writeExternal(dataOut);
          }
      }
  }