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    1   /***
    2    *
    3    * Copyright 2004 Protique Ltd
    4    *
    5    * Licensed under the Apache License, Version 2.0 (the "License");
    6    * you may not use this file except in compliance with the License.
    7    * You may obtain a copy of the License at
    8    *
    9    * http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   *
    17   **/
    18  package org.codehaus.activemq.management;
    19
    20  import javax.jms.Message;
    21
    22  /***
    23   * Statistics for a {@link javax.jms.Queue}
    24   *
    25   * @version $Revision: 1.1 $
    26   */
    27  public class JMSQueueStatsImpl extends JMSEndpointStatsImpl implements JMSDestinationStats {
    28      protected TimeStatisticImpl sendMessageRateTime;
    29
    30      public JMSQueueStatsImpl() {
    31          this.sendMessageRateTime = new TimeStatisticImpl("sendMessageRateTime", "Time taken to send a message (publish thoughtput rate)");
    32          addStatistic("sendMessageRateTime", sendMessageRateTime);
    33      }
    34
    35      public JMSQueueStatsImpl(CountStatisticImpl messageCount, CountStatisticImpl pendingMessageCount, CountStatisticImpl expiredMessageCount, TimeStatisticImpl messageWaitTime, TimeStatisticImpl messageRateTime, TimeStatisticImpl sendMessageRateTime) {
    36          super(messageCount, pendingMessageCount, expiredMessageCount, messageWaitTime, messageRateTime);
    37          this.sendMessageRateTime = sendMessageRateTime;
    38          addStatistic("sendMessageRateTime", sendMessageRateTime);
    39      }
    40
    41      public void setPendingMessageCountOnStartup(long count) {
    42          CountStatisticImpl messageCount = (CountStatisticImpl) getPendingMessageCount();
    43          messageCount.setCount(count);
    44      }
    45
    46      public void onMessageSend(Message message) {
    47          long start = pendingMessageCount.getLastSampleTime();
    48          pendingMessageCount.increment();
    49          long end = pendingMessageCount.getLastSampleTime();
    50          sendMessageRateTime.addTime(end - start);
    51      }
    52
    53      public void onMessageAck() {
    54          long start = messageCount.getLastSampleTime();
    55          messageCount.increment();
    56          long end = messageCount.getLastSampleTime();
    57          messageRateTime.addTime(end - start);
    58      }
    59  }