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 /*
  * JBoss, Home of Professional Open Source
  * Copyright 2012, Red Hat, Inc., and individual contributors
  * by the @authors tag. See the copyright.txt in the distribution for a
  * full listing of individual contributors.
  *
  * 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.jboss.weld.annotated.runtime;
import static org.jboss.weld.util.reflection.Reflections.cast;
An implementation of javax.enterprise.inject.spi.AnnotatedMethod used at runtime for invoking Java methods.

Author(s):
Jozef Hartinger
public class InvokableAnnotatedMethod<T> extends ForwardingAnnotatedMethod<T> {
    public static <T> InvokableAnnotatedMethod<T> of(AnnotatedMethod<T> delegate) {
        return new InvokableAnnotatedMethod<T>(delegate);
    }
    private final AnnotatedMethod<T> annotatedMethod;
    private volatile Map<Class<?>, Methodmethods;
    public InvokableAnnotatedMethod(AnnotatedMethod<T> annotatedMethod) {
        this. = annotatedMethod;
        this. = Collections.<Class<?>, Method>singletonMap(annotatedMethod.getJavaMember().getDeclaringClass(), annotatedMethod.getJavaMember());
        SecurityActions.ensureAccessible(annotatedMethod.getJavaMember()); // TODO: make sure this instance does not leak
    }

    
Invokes the method

Parameters:
instance The instance to invoke
parameters The method parameters
Returns:
A reference to the instance
    public <X> X invoke(Object instanceObject... parametersthrows IllegalArgumentExceptionIllegalAccessExceptionInvocationTargetException {
        return cast(.getJavaMember().invoke(instanceparameters));
    }

    
Invokes the method on the class of the passed instance, not the declaring class. Useful with proxies

Parameters:
instance The instance to invoke
manager The Bean manager
Returns:
A reference to the instance
        final Map<Class<?>, Methodmethods = this.;
        Method method = methods.get(instance.getClass());
        if (method == null) {
            // the same method may be written to the map twice, but that is ok
            // lookupMethod is very slow
            Method delegate = .getJavaMember();
            method = SecurityActions.lookupMethod(instance.getClass(), delegate.getName(), delegate.getParameterTypes());
            SecurityActions.ensureAccessible(method);
            synchronized (this) {
                final Map<Class<?>, MethodnewMethods = new HashMap<Class<?>, Method>(methods);
                newMethods.put(instance.getClass(), method);
                this. = Collections.unmodifiableMap(newMethods);
            }
        }
        return cast(method.invoke(instanceparameters));
    }
    @Override
    public AnnotatedMethod<T> delegate() {
        return ;
    }
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