0.8.1-rc1/resource/src/main/java/org/apache/oodt/cas/resource/monitor/ganglia/GangliaResourceMonitorFactory.java

/*
 * 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.oodt.cas.resource.monitor.ganglia;

//JDK imports
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;



//OODT imports
import org.apache.oodt.cas.resource.monitor.Monitor;
import org.apache.oodt.cas.resource.monitor.MonitorFactory;
import org.apache.oodt.cas.resource.monitor.ganglia.loadcalc.LoadCalculator;
import org.apache.oodt.cas.resource.structs.ResourceNode;
import org.apache.oodt.cas.resource.util.GenericResourceManagerObjectFactory;

/**
 * @author rajith
 * @version $Revision$
 */
public class GangliaResourceMonitorFactory implements MonitorFactory {

	private static final Logger LOG = Logger
			.getLogger(GangliaResourceMonitorFactory.class.getName());

	@Override
	public Monitor createMonitor() {
		try {
			String loadCalculatorFactoryStr = System
					.getProperty("org.apache.oodt.cas.resource.monitor.loadcalc.factory");
			String nodeRepoFactoryStr = System
					.getProperty("org.apache.oodt.cas.resource.nodes.repo.factory");
			
			String gmetadHost = System
                     .getProperty("org.apache.oodt.cas.resource.monitor.ganglia.gemtad.host.address");
			
			int gmetadPort = Integer.valueOf(System
		                .getProperty("org.apache.oodt.cas.resource.monitor.ganglia.gemtad.host.port"));

			LoadCalculator loadCalculator = GenericResourceManagerObjectFactory
					.getLoadCalculatorFromServiceFactory(loadCalculatorFactoryStr);

			return new GangliaResourceMonitor(loadCalculator, gmetadHost, gmetadPort);
		} catch (Exception e) {
			LOG.log(Level.SEVERE,
					"Failed to create Resource Monitor : " + e.getMessage(), e);
			return null;
		}
	}

}