content: /*
   *                         Vortex OpenSplice
   *
   *   This software and documentation are Copyright 2006 to TO_YEAR ADLINK
   *   Technology Limited, its affiliated companies and licensors. All rights
   *   reserved.
   *
   *   Licensed 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.
   *
   */
  
  import DDS.ANY_INSTANCE_STATE;
  import DDS.ANY_SAMPLE_STATE;
  import DDS.ANY_VIEW_STATE;
  import DDS.DataReader;
  import DDS.LENGTH_UNLIMITED;
  import DDS.QueryCondition;
  import DDS.ReadCondition;
  import DDS.SampleInfoSeqHolder;
  import StockMarket.StockDataReader;
  import StockMarket.StockDataReaderHelper;
  import StockMarket.StockSeqHolder;
  import StockMarket.StockTypeSupport;
  
  public class QueryConditionDataSubscriber {
  
      public static void main(String[] args) {
          String stkToSubscribe = null;
          if (args.length > 0) {
              stkToSubscribe = args[0];
          } else {
              System.out.println("Invalid Arguments \n");
              System.out.println("Expected argument MSFT or GE");
              System.exit(-1);
          }
  
          DDSEntityManager mgr = new DDSEntityManager();
          String partitionName = "QueryCondition example";
  
          // create Domain Participant
          mgr.createParticipant(partitionName);
  
          // create Type
          StockTypeSupport msgTS = new StockTypeSupport();
          mgr.registerType(msgTS);
  
          // create Topic
          mgr.createTopic("StockTrackerExclusive");
  
          // create Subscriber
          mgr.createSubscriber();
          mgr.createReader(false);
  
          // Read Events
          String[] params = new String[1];
          params[0] = new String(stkToSubscribe);
          DataReader dreader = mgr.getReader();
          StockDataReader stockReader = StockDataReaderHelper.narrow(dreader);
          QueryCondition qc = stockReader.create_querycondition(
                  ANY_SAMPLE_STATE.value, ANY_VIEW_STATE.value,
                  ANY_INSTANCE_STATE.value, "ticker=%0", params);
          ErrorHandler.checkHandle(qc, "create_querycondition");
  
          StockSeqHolder msgSeq = new StockSeqHolder();
          SampleInfoSeqHolder infoSeq = new SampleInfoSeqHolder();
          boolean terminate = false;
          int count = 0;
          System.out.println("Ready");
          while (!terminate && count < 1500) { // We dont want the example to run indefinitely
              stockReader.take_w_condition(msgSeq, infoSeq,
                      LENGTH_UNLIMITED.value, qc);
  
              for (int i = 0; i < msgSeq.value.length; i++) {
                  if (msgSeq.value[i].price == -1.0f) {
                      terminate = true;
                      break;
                  }
                  System.out.println(msgSeq.value[i].ticker + ": "
                          + msgSeq.value[i].price);
              }
              try
              {
                  Thread.sleep(200);
              }
              catch(InterruptedException ie)
              {
                  // nothing to do
              }
              ++count;
          }
          stockReader.return_loan(msgSeq, infoSeq);
          System.out.println("Market Closed");
  
          // clean up
          stockReader.delete_readcondition(qc);
          mgr.getSubscriber().delete_datareader(stockReader);
          mgr.deleteSubscriber();
          mgr.deleteTopic();
          mgr.deleteParticipant();
      }
  }
  