ActiveMQ example source code file (JMSSessionStatsImpl.java)

This example ActiveMQ source code file (JMSSessionStatsImpl.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - ActiveMQ tags/keywords

activemqmessageconsumer, activemqmessageproducer, countstatisticimpl, countstatisticimpl, jmsconsumerstatsimpl, jmsconsumerstatsimpl, jmsproducerstatsimpl, jmsproducerstatsimpl, list, number, object, time, timestatisticimpl, timestatisticimpl, util

The ActiveMQ JMSSessionStatsImpl.java source code

/**
 * 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.management;

import java.util.List;

import org.apache.activemq.ActiveMQMessageConsumer;
import org.apache.activemq.ActiveMQMessageProducer;
import org.apache.activemq.util.IndentPrinter;

/**
 * Statistics for a JMS session
 * 
 * 
 */
public class JMSSessionStatsImpl extends StatsImpl {
    private List producers;
    private List consumers;
    private CountStatisticImpl messageCount;
    private CountStatisticImpl pendingMessageCount;
    private CountStatisticImpl expiredMessageCount;
    private TimeStatisticImpl messageWaitTime;
    private CountStatisticImpl durableSubscriptionCount;

    private TimeStatisticImpl messageRateTime;

    public JMSSessionStatsImpl(List producers, List consumers) {
        this.producers = producers;
        this.consumers = consumers;
        this.messageCount = new CountStatisticImpl("messageCount", "Number of messages exchanged");
        this.pendingMessageCount = new CountStatisticImpl("pendingMessageCount", "Number of pending messages");
        this.expiredMessageCount = new CountStatisticImpl("expiredMessageCount", "Number of expired messages");
        this.messageWaitTime = new TimeStatisticImpl("messageWaitTime",
                                                     "Time spent by a message before being delivered");
        this.durableSubscriptionCount = new CountStatisticImpl("durableSubscriptionCount",
                                                               "The number of durable subscriptions");
        this.messageWaitTime = new TimeStatisticImpl("messageWaitTime",
                                                     "Time spent by a message before being delivered");
        this.messageRateTime = new TimeStatisticImpl("messageRateTime",
                                                     "Time taken to process a message (thoughtput rate)");

        // lets add named stats
        addStatistic("messageCount", messageCount);
        addStatistic("pendingMessageCount", pendingMessageCount);
        addStatistic("expiredMessageCount", expiredMessageCount);
        addStatistic("messageWaitTime", messageWaitTime);
        addStatistic("durableSubscriptionCount", durableSubscriptionCount);
        addStatistic("messageRateTime", messageRateTime);
    }

    public JMSProducerStatsImpl[] getProducers() {
        // lets make a snapshot before we process them
        Object[] producerArray = producers.toArray();
        int size = producerArray.length;
        JMSProducerStatsImpl[] answer = new JMSProducerStatsImpl[size];
        for (int i = 0; i < size; i++) {
            ActiveMQMessageProducer producer = (ActiveMQMessageProducer)producerArray[i];
            answer[i] = producer.getProducerStats();
        }
        return answer;
    }

    public JMSConsumerStatsImpl[] getConsumers() {
        // lets make a snapshot before we process them
        Object[] consumerArray = consumers.toArray();
        int size = consumerArray.length;
        JMSConsumerStatsImpl[] answer = new JMSConsumerStatsImpl[size];
        for (int i = 0; i < size; i++) {
            ActiveMQMessageConsumer consumer = (ActiveMQMessageConsumer)consumerArray[i];
            answer[i] = consumer.getConsumerStats();
        }
        return answer;
    }

    public void reset() {
        super.reset();
        JMSConsumerStatsImpl[] cstats = getConsumers();
        int size = cstats.length;
        for (int i = 0; i < size; i++) {
            cstats[i].reset();
        }
        JMSProducerStatsImpl[] pstats = getProducers();
        size = pstats.length;
        for (int i = 0; i < size; i++) {
            pstats[i].reset();
        }
    }

    /**
     * @param enabled the enabled to set
     */
    public void setEnabled(boolean enabled) {
        super.setEnabled(enabled);
        JMSConsumerStatsImpl[] cstats = getConsumers();
        int size = cstats.length;
        for (int i = 0; i < size; i++) {
            cstats[i].setEnabled(enabled);
        }
        JMSProducerStatsImpl[] pstats = getProducers();
        size = pstats.length;
        for (int i = 0; i < size; i++) {
            pstats[i].setEnabled(enabled);
        }

    }

    public CountStatisticImpl getMessageCount() {
        return messageCount;
    }

    public CountStatisticImpl getPendingMessageCount() {
        return pendingMessageCount;
    }

    public CountStatisticImpl getExpiredMessageCount() {
        return expiredMessageCount;
    }

    public TimeStatisticImpl getMessageWaitTime() {
        return messageWaitTime;
    }

    public CountStatisticImpl getDurableSubscriptionCount() {
        return durableSubscriptionCount;
    }

    public TimeStatisticImpl getMessageRateTime() {
        return messageRateTime;
    }

    public String toString() {
        StringBuffer buffer = new StringBuffer(" ");
        buffer.append(messageCount);
        buffer.append(" ");
        buffer.append(messageRateTime);
        buffer.append(" ");
        buffer.append(pendingMessageCount);
        buffer.append(" ");
        buffer.append(expiredMessageCount);
        buffer.append(" ");
        buffer.append(messageWaitTime);
        buffer.append(" ");
        buffer.append(durableSubscriptionCount);

        buffer.append(" producers{ ");
        JMSProducerStatsImpl[] producerArray = getProducers();
        for (int i = 0; i < producerArray.length; i++) {
            if (i > 0) {
                buffer.append(", ");
            }
            buffer.append(Integer.toString(i));
            buffer.append(" = ");
            buffer.append(producerArray[i]);
        }
        buffer.append(" } consumers{ ");
        JMSConsumerStatsImpl[] consumerArray = getConsumers();
        for (int i = 0; i < consumerArray.length; i++) {
            if (i > 0) {
                buffer.append(", ");
            }
            buffer.append(Integer.toString(i));
            buffer.append(" = ");
            buffer.append(consumerArray[i]);
        }
        buffer.append(" }");
        return buffer.toString();
    }

    public void dump(IndentPrinter out) {
        out.printIndent();
        out.println(messageCount);
        out.printIndent();
        out.println(messageRateTime);
        out.printIndent();
        out.println(pendingMessageCount);
        out.printIndent();
        out.println(expiredMessageCount);
        out.printIndent();
        out.println(messageWaitTime);
        out.printIndent();
        out.println(durableSubscriptionCount);
        out.println();

        out.printIndent();
        out.println("producers {");
        out.incrementIndent();
        JMSProducerStatsImpl[] producerArray = getProducers();
        for (int i = 0; i < producerArray.length; i++) {
            JMSProducerStatsImpl producer = (JMSProducerStatsImpl)producerArray[i];
            producer.dump(out);
        }
        out.decrementIndent();
        out.printIndent();
        out.println("}");

        out.printIndent();
        out.println("consumers {");
        out.incrementIndent();
        JMSConsumerStatsImpl[] consumerArray = getConsumers();
        for (int i = 0; i < consumerArray.length; i++) {
            JMSConsumerStatsImpl consumer = (JMSConsumerStatsImpl)consumerArray[i];
            consumer.dump(out);
        }
        out.decrementIndent();
        out.printIndent();
        out.println("}");
    }

    public void onCreateDurableSubscriber() {
        durableSubscriptionCount.increment();
    }

    public void onRemoveDurableSubscriber() {
        durableSubscriptionCount.decrement();
    }
}