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The basic runtime tools and interfaces for intarsys components.
There is a newer version: 4.11
/*
 * Copyright (c) 2007, intarsys consulting GmbH
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 *
 * - Neither the name of intarsys nor the names of its contributors may be used
 *   to endorse or promote products derived from this software without specific
 *   prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
package de.intarsys.tools.monitor;

import java.util.Iterator;

/**
 * A simple framework for visiting monitor factories and monitors.
 */
public class MonitorOperator {

	public MonitorOperator() {
		super();
	}

	protected void doEvent(ITrace event) {
		doEventStart(event);
		doEventBody(event);
		doEventEnd(event);
	}

	protected void doEventBody(ITrace event) {
		// do nothing by default
	}

	protected void doEventEnd(ITrace event) {
		// do nothing by default
	}

	protected void doEventStart(ITrace event) {
		// do nothing by default
	}

	protected void doMonitor(IMonitor monitor) {
		doMonitorStart(monitor);
		doMonitorBody(monitor);
		doMonitorEnd(monitor);
	}

	protected void doMonitorBody(IMonitor monitor) {
		Iterator i = monitor.getTraces().iterator();

		if (i == null) {
			return;
		}

		for (; i.hasNext();) {
			ITrace event = (ITrace) i.next();
			doEvent(event);
		}
	}

	protected void doMonitorEnd(IMonitor monitor) {
		//
	}

	protected void doMonitorFactoryBody(IMonitorRegistry registry) {
		for (Iterator i = registry.getMonitors().iterator(); i.hasNext();) {
			IMonitor monitor = (IMonitor) i.next();
			doMonitor(monitor);
		}
	}

	protected void doMonitorFactoryEnd(IMonitorRegistry registry) {
		// do nothing by default
	}

	protected void doMonitorFactoryStart(IMonitorRegistry registry) {
		// do nothing by default
	}

	protected void doMonitorStart(IMonitor monitor) {
		// do nothing by default
	}

	public void process(IMonitorRegistry registry) {
		doMonitorFactoryStart(registry);
		doMonitorFactoryBody(registry);
		doMonitorFactoryEnd(registry);
	}
}