/**
 *
 *  Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
 *
 *  Licensed 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.injection;

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;

    /**
     * Intantiates an  invoker for the given method
     */
    public MethodEventInvoker(Method method) {
        this.method = method;
    }

    public void invokeEvent(T instance) throws ObjectCallbackException {
        try {
            method.invoke(instance, (Object[]) null);
        } catch (IllegalAccessException e) {
            throw new AssertionError("Method is not accessible [" + method + "]");
        } catch (InvocationTargetException e) {
            throw new ObjectCallbackException("Exception thrown by callback method [" + method + "]", e);
        }
    }

}