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/*
* 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.tuscany.core.monitor;
import org.apache.tuscany.host.MonitorFactory;
import java.util.Map;
/**
* Helper for creating MonitorFactory instances.
*
* @version $$Rev$$ $$Date$$
*/
public final class MonitorFactoryUtil {
/**
* Hide the constructor
*/
private MonitorFactoryUtil() {
}
/**
* Creates a MonitorFactory instance of the specified type.
* @param name fully qualified classname of the desired MonitorFactory type
* @param props collection of initialization properties
* @return a configured MonitorFactory instance, or null if the factory could not be instantiated.
*/
@SuppressWarnings("unchecked")
public static MonitorFactory createMonitorFactory(String name, Map<String, Object> props) {
Class<? extends MonitorFactory> clazz;
try {
clazz = (Class<? extends MonitorFactory>) Class.forName(name);
} catch (ClassNotFoundException cnfe) {
return null;
} catch (ClassCastException cce) {
return null;
}
return createMonitorFactory(clazz, props);
}
/**
* Creates a MonitorFactory instance of the specified type.
* @param mfc class of the desired MonitorFactory type
* @param props collection of initialization properties
* @return a configured MonitorFactory instance, or null if the factory could not be instantiated.
*/
public static MonitorFactory createMonitorFactory(Class<? extends MonitorFactory> mfc, Map<String, Object> props) {
MonitorFactory mf;
try {
mf = mfc.newInstance();
mf.initialize(props);
} catch (InstantiationException e) {
throw new AssertionError(e);
} catch (IllegalAccessException e) {
throw new AssertionError(e);
}
// allow IllegalArgumentException to propogate out
return mf;
}
}
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