/*
* 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.injection;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import org.apache.tuscany.spi.ObjectCreationException;
import org.apache.tuscany.spi.ObjectFactory;
/**
* Injects a value created by an {@link org.apache.tuscany.spi.ObjectFactory} using a given method
*
* @version $Rev: 430937 $ $Date: 2006-08-11 18:17:56 -0700 (Fri, 11 Aug 2006) $
*/
public class MethodInjector<T> implements Injector<T> {
private final Method method;
private final ObjectFactory<?> objectFactory;
public MethodInjector(Method method, ObjectFactory<?> objectFactory) {
assert method != null;
assert objectFactory != null;
this.method = method;
this.method.setAccessible(true);
this.objectFactory = objectFactory;
}
public void inject(T instance) throws ObjectCreationException {
try {
method.invoke(instance, objectFactory.getInstance());
} catch (IllegalAccessException e) {
throw new AssertionError("Method is not accessible [" + method + "]");
} catch (IllegalArgumentException e) {
ObjectCreationException oce = new ObjectCreationException("Exception thrown by setter", e);
oce.setIdentifier(method.getName());
throw oce;
} catch (InvocationTargetException e) {
ObjectCreationException oce = new ObjectCreationException("Exception thrown by setter", e);
oce.setIdentifier(method.getName());
throw oce;
}
}
}