jetty-monitor/src/main/java/org/eclipse/jetty/monitor/integration/JavaMonitorTrigger.java

//
//  ========================================================================
//  Copyright (c) 1995-2017 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//      http://www.eclipse.org/legal/epl-v10.html
//
//      The Apache License v2.0 is available at
//      http://www.opensource.org/licenses/apache2.0.php
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//

package org.eclipse.jetty.monitor.integration;

import javax.management.ObjectName;

import org.eclipse.jetty.monitor.triggers.AttrEventTrigger;


/**
 * @param <TYPE> the trigger type
 */
public class JavaMonitorTrigger <TYPE extends Comparable<TYPE>>
    extends AttrEventTrigger<TYPE>
{
    private final String _id;
    private final String _name;
    private final boolean _dynamic;
    private int _count;
    
    /* ------------------------------------------------------------ */
    public JavaMonitorTrigger(ObjectName nameObject, String attributeName, String id, String name, boolean dynamic)
        throws IllegalArgumentException
    {   
        super(nameObject, attributeName);
      
        _id = id;
        _name = name;
        _dynamic = dynamic;
    }
    
    /* ------------------------------------------------------------ */
    /**
     * @see org.eclipse.jetty.monitor.triggers.AttrEventTrigger#match(java.lang.Comparable)
     */
    @Override
    public boolean match(Comparable<TYPE> value)
    {
        return _dynamic ? true : (_count++ < 1);
    }
    
    protected boolean getSaveAll()
    {
        return false;
    }
    
    @Override
    public String getID()
    {
        return _id;
    }
    
    @Override
    public String getNameString()
    {
        return _name;
    }
}