com.sun.enterprise.transaction.monitoring.TransactionServiceStatsProvider Maven / Gradle / Ivy

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
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 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
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 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
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package com.sun.enterprise.transaction.monitoring;

import org.glassfish.api.statistics.CountStatistic;
import org.glassfish.api.statistics.impl.CountStatisticImpl;
import org.glassfish.probe.provider.annotations.*;
import org.glassfish.gmbal.Description;
import org.glassfish.gmbal.ManagedAttribute;
import org.glassfish.gmbal.ManagedObject;

/**
 * Collects the Transaction Service monitoring data and provides it to the callers.
 *
 * @author Marina Vatkina
 */
@ManagedObject
@Description("Transaction Service Statistics")
public class TransactionServiceStatsProvider {

    private CountStatisticImpl activeCount = new CountStatisticImpl("ActiveCount", "count", 
            "Provides the number of transactions that are currently active.");

    private CountStatisticImpl committedCount = new CountStatisticImpl("CommittedCount", "count", 
            "Provides the number of transactions that have been committed.");

    private CountStatisticImpl rolledbackCount = new CountStatisticImpl("RolledbackCount", "count", 
            "Provides the number of transactions that have been rolled back.");

    private boolean isFrozen = false;

    @ManagedAttribute(id="activecount")
    @Description( "Provides the number of transactions that are currently active." )
    public CountStatistic getActiveCount() {
        return activeCount.getStatistic();
    }

    @ManagedAttribute(id="committedcount")
    @Description( "Provides the number of transactions that have been committed." )
    public CountStatistic getCommittedCount() {
        return committedCount.getStatistic();
    }

    @ManagedAttribute(id="rolledbackcount")
    @Description( "Provides the number of transactions that have been rolled back." )
    public CountStatistic getRolledbackCount() {
        return rolledbackCount.getStatistic();
    }
    
    @ManagedAttribute(id="state")
    @Description( "Indicates if the transaction service has been frozen." )
    public String getState() {
        return (isFrozen)? "True": "False";
    }
    
    @ProbeListener("glassfish:transaction:transaction-service:activated")
    public void transactionActivatedEvent() {
        activeCount.increment();
    }

    @ProbeListener("glassfish:transaction:transaction-service:deactivated")
    public void transactionDeactivatedEvent() {
        activeCount.decrement();
    }

    @ProbeListener("glassfish:transaction:transaction-service:committed")
    public void transactionCommittedEvent() {
        committedCount.increment();
        activeCount.decrement();
    }

    @ProbeListener("glassfish:transaction:transaction-service:rolledback")
    public void transactionRolledbackEvent() {
        rolledbackCount.increment();
        activeCount.decrement();
    }

    @ProbeListener("glassfish:transaction:transaction-service:freeze")
    public void freezeEvent(@ProbeParam("isFrozen") boolean b) {
        isFrozen = b;
    }
}