The other day I answered a question on StackOverflow about getting the LGETIME and LPUTIME attributes of queue status command. I figured I should also post the code here for everyone to read & use.

If you have done the runmqsc command for Queue Status of Type ‘Queue’ for all queues of a queue manager as follows:

DIS QSTATUS(*) TYPE(QUEUE)

And you wanted to do the same thing via a program, here is a fully functioning Java MQ example that will connect to a remote queue manager, issue a PCF “Inquire Queue Status” command, get the PCF response messages, loop through the PCF responses and output the information. You can download the source code from here.

For more information about the PCF “Inquire Queue Status” command, go to MQ KnowLedge Center here.

import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Hashtable;

import com.ibm.mq.MQException;
import com.ibm.mq.MQQueueManager;
import com.ibm.mq.constants.CMQC;
import com.ibm.mq.constants.CMQCFC;
import com.ibm.mq.headers.MQDataException;
import com.ibm.mq.headers.pcf.PCFMessage;
import com.ibm.mq.headers.pcf.PCFMessageAgent;

/**
 * Program Name
 *  MQListQueueStatus01
 *
 * Description
 *  This java class issues a PCF "inquire queue status" request message for all ("*") queues 
 *  of a remote queue manager. 
 *
 * Sample Command Line Parameters
 *  -m MQA1 -h 127.0.0.1 -p 1414 -c TEST.CHL -q TEST.Q1 -u UserID -x Password
 *
 * @author Roger Lacroix
 */
public class MQListQueueStatus01
{
   private static final SimpleDateFormat  LOGGER_TIMESTAMP = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss.SSS");

   private Hashtable<String,String> params;
   private Hashtable<String,Object> mqht;
   private String qMgrName;

   public MQListQueueStatus01()
   {
      super();
      params = new Hashtable<String,String>();
      mqht = new Hashtable<String,Object>();
   }

   /**
    * Make sure the required parameters are present.
    * @return true/false
    */
   private boolean allParamsPresent()
   {
      boolean b = params.containsKey("-h") && params.containsKey("-p") &&
                  params.containsKey("-c") && params.containsKey("-m") &&
                  params.containsKey("-u") && params.containsKey("-x");
      if (b)
      {
         try
         {
            Integer.parseInt((String) params.get("-p"));
         }
         catch (NumberFormatException e)
         {
            b = false;
         }
      }

      return b;
   }

   /**
    * Extract the command-line parameters and initialize the MQ HashTable.
    * @param args
    * @throws IllegalArgumentException
    */
   private void init(String[] args) throws IllegalArgumentException
   {
      int port = 1414;
      if (args.length > 0 && (args.length % 2) == 0)
      {
         for (int i = 0; i < args.length; i += 2)
         {
            params.put(args[i], args[i + 1]);
         }
      }
      else
      {
         throw new IllegalArgumentException();
      }

      if (allParamsPresent())
      {
         qMgrName = (String) params.get("-m");
         
         try
         {
            port = Integer.parseInt((String) params.get("-p"));
         }
         catch (NumberFormatException e)
         {
            port = 1414;
         }
         
         mqht.put(CMQC.CHANNEL_PROPERTY, params.get("-c"));
         mqht.put(CMQC.HOST_NAME_PROPERTY, params.get("-h"));
         mqht.put(CMQC.PORT_PROPERTY, new Integer(port));
         mqht.put(CMQC.USER_ID_PROPERTY, params.get("-u"));
         mqht.put(CMQC.PASSWORD_PROPERTY, params.get("-x"));

         // I don't want to see MQ exceptions at the console.
         MQException.log = null;
      }
      else
      {
         throw new IllegalArgumentException();
      }
   }
   
   private void doPCF()
   {
      MQQueueManager qMgr = null;
      PCFMessageAgent agent = null;
      PCFMessage   request = null;
      PCFMessage[] responses = null;
      
      try
      {
         qMgr = new MQQueueManager(qMgrName, mqht);
         MQListQueueStatus01.logger("successfully connected to "+ qMgrName);

         agent = new PCFMessageAgent(qMgr);
         MQListQueueStatus01.logger("successfully created agent");
      
         // https://www.ibm.com/support/knowledgecenter/en/SSFKSJ_9.1.0/com.ibm.mq.ref.adm.doc/q087880_.htm
         request = new PCFMessage(CMQCFC.MQCMD_INQUIRE_Q_STATUS);
         
         /**
          * You can explicitly set a queue name like "TEST.Q1" or
          * use a wild card like "TEST.*"
          */
         request.addParameter(CMQC.MQCA_Q_NAME, "*");
         
         // Add a parameter to select TYPE of QUEUE (rather than HANDLE i.e. MQIACF_Q_HANDLE)
         request.addParameter(CMQCFC.MQIACF_Q_STATUS_TYPE, CMQCFC.MQIACF_Q_STATUS);

         // Add a parameter that selects all of the attributes we want
         request.addParameter(CMQCFC.MQIACF_Q_STATUS_ATTRS,
                              new int [] { CMQC.MQCA_Q_NAME,
                                           CMQC.MQIA_CURRENT_Q_DEPTH,
                                           CMQC.MQIA_OPEN_INPUT_COUNT,
                                           CMQC.MQIA_OPEN_OUTPUT_COUNT,
                                           CMQCFC.MQCACF_LAST_PUT_DATE,
                                           CMQCFC.MQCACF_LAST_PUT_TIME,
                                           CMQCFC.MQCACF_LAST_GET_DATE,
                                           CMQCFC.MQCACF_LAST_GET_TIME,
                                         });
         /**
          * Other attributes that can be used for TYPE(QUEUE)
          * - MQIA_MONITORING_Q
          * - MQCACF_MEDIA_LOG_EXTENT_NAME
          * - MQIACF_OLDEST_MSG_AGE
          * - MQIACF_Q_TIME_INDICATOR
          * - MQIACF_UNCOMMITTED_MSGS
          */

         responses = agent.send(request);
         
         for (int i = 0; i < responses.length; i++)
         {
            if ( ((responses[i]).getCompCode() == CMQC.MQCC_OK) &&
                 ((responses[i]).getParameterValue(CMQC.MQCA_Q_NAME) != null) )
            {
               String name = responses[i].getStringParameterValue(CMQC.MQCA_Q_NAME);
               if (name != null)
                  name = name.trim();

               int depth = responses[i].getIntParameterValue(CMQC.MQIA_CURRENT_Q_DEPTH);
               int iprocs = responses[i].getIntParameterValue(CMQC.MQIA_OPEN_INPUT_COUNT);
               int oprocs = responses[i].getIntParameterValue(CMQC.MQIA_OPEN_OUTPUT_COUNT);
               
               String lastPutDate = responses[i].getStringParameterValue(CMQCFC.MQCACF_LAST_PUT_DATE);
               if (lastPutDate != null)
                  lastPutDate = lastPutDate.trim();

               String lastPutTime = responses[i].getStringParameterValue(CMQCFC.MQCACF_LAST_PUT_TIME);
               if (lastPutTime != null)
                  lastPutTime = lastPutTime.trim();

               String lastGetDate = responses[i].getStringParameterValue(CMQCFC.MQCACF_LAST_GET_DATE);
               if (lastGetDate != null)
                  lastGetDate = lastGetDate.trim();

               String lastGetTime = responses[i].getStringParameterValue(CMQCFC.MQCACF_LAST_GET_TIME);
               if (lastGetTime != null)
                  lastGetTime = lastGetTime.trim();

               MQListQueueStatus01.logger("Name="+name + " : depth="+depth + " : iprocs="+iprocs+" : oprocs="+oprocs+" : lastPutDate='"+lastPutDate+"' : lastPutTime='"+lastPutTime+"' : lastGetDate='"+lastGetDate+"' : lastGetTime='"+lastGetTime+"'");
            }
         }
      }
      catch (MQException e)
      {
         MQListQueueStatus01.logger("CC=" +e.completionCode + " : RC=" + e.reasonCode);
      }
      catch (IOException e)
      {
         MQListQueueStatus01.logger("IOException:" +e.getLocalizedMessage());
      }
      catch (MQDataException e)
      {
         MQListQueueStatus01.logger("MQDataException:" +e.getLocalizedMessage());
      }
      finally
      {
         try
         {
            if (agent != null)
            {
               agent.disconnect();
               MQListQueueStatus01.logger("disconnected from agent");
            }
         }
         catch (MQDataException e)
         {
            MQListQueueStatus01.logger("CC=" +e.completionCode + " : RC=" + e.reasonCode);
         }

         try
         {
            if (qMgr != null)
            {
               qMgr.disconnect();
               MQListQueueStatus01.logger("disconnected from "+ qMgrName);
            }
         }
         catch (MQException e)
         {
            MQListQueueStatus01.logger("CC=" +e.completionCode + " : RC=" + e.reasonCode);
         }
      }
   }

   /**
    * A simple logger method
    * @param data
    */
   public static void logger(String data)
   {
      String className = Thread.currentThread().getStackTrace()[2].getClassName();

      // Remove the package info.
      if ( (className != null) && (className.lastIndexOf('.') != -1) )
         className = className.substring(className.lastIndexOf('.')+1);

      System.out.println(LOGGER_TIMESTAMP.format(new Date())+" "+className+": "+Thread.currentThread().getStackTrace()[2].getMethodName()+": "+data);
   }

   public static void main(String[] args)
   {
      MQListQueueStatus01 mqlqs = new MQListQueueStatus01();
      
      try
      {
         mqlqs.init(args);
         mqlqs.doPCF();
      }
      catch (IllegalArgumentException e)
      {
         MQListQueueStatus01.logger("Usage: java MQListQueueStatus01 -m QueueManagerName -h host -p port -c channel -u UserID -x Password");
         System.exit(1);
      }

      System.exit(0);
   }
}

Regards,
Roger Lacroix
Capitalware Inc.