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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.sca.implementation.java.invocation;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
/**
* Performs an wire on a method of a given instance
*
* @version $Rev$ $Date$
*/
public class MethodEventInvoker<T> implements EventInvoker<T> {
private final Method method;
/**
* Instantiates an invoker for the given method
*/
public MethodEventInvoker(Method method) {
assert method != null;
this.method = method;
}
public void invokeEvent(T instance) throws EventInvocationException {
try {
method.invoke(instance, (Object[]) null);
} catch (IllegalArgumentException e) {
String name = method.getName();
throw new EventInvocationException("Exception thrown by event method [" + name + "]", e.getCause());
} catch (IllegalAccessException e) {
String name = method.getName();
throw new EventInvocationException("Method is not accessible [" + name + "]");
} catch (InvocationTargetException e) {
String name = method.getName();
throw new EventInvocationException("Exception thrown by event method [" + name + "]", e.getCause());
}
}
}
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