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* as indicated by the @author tags. See the copyright.txt file in the
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*
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* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
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*
* This software is distributed in the hope that it will be useful,
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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*/
package org.jboss.ejb3.interceptors.aop;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Arrays;
import javax.interceptor.InvocationContext;
import org.jboss.aop.advice.Interceptor;
import org.jboss.aop.joinpoint.Invocation;
/**
* Chapter 12.3
*
* AroundInvoke methods have the following signature:
* Object <METHOD>(InvocationContext) throws Exception
*
* @author <a href="mailto:carlo.dewolf@jboss.com">Carlo de Wolf</a>
* @version $Revision: 69040 $
*/
public class BusinessMethodInterceptorMethodInterceptor implements Interceptor
{
private static final Class<?> PARAMETER_TYPES[] = { InvocationContext.class };
private Object interceptor;
private Method method;
/**
*
* @param interceptor an spec interceptor
* @param businessMethodInterceptorMethod a business method interceptor on the spec interceptor
*/
public BusinessMethodInterceptorMethodInterceptor(Object interceptor, Method businessMethodInterceptorMethod)
{
assert interceptor != null : "interceptor is null";
assert businessMethodInterceptorMethod != null : "businessMethodInterceptorMethod is null";
assert businessMethodInterceptorMethod.getReturnType() == Object.class : "return type must be Object " + businessMethodInterceptorMethod;
assert Arrays.equals(businessMethodInterceptorMethod.getParameterTypes(), PARAMETER_TYPES) : "wrong parameter signature";
// Ignore throw clause
this.interceptor = interceptor;
this.method = businessMethodInterceptorMethod;
}
public String getName()
{
return "BusinessMethodInterceptorMethodInterceptor";
}
public Object invoke(final Invocation invocation) throws Throwable
{
InvocationContext ctx = InvocationContextInterceptor.getInvocationContext(invocation);
try
{
Object args[] = { ctx };
boolean accessible = method.isAccessible();
method.setAccessible(true);
try
{
return method.invoke(interceptor, args);
}
finally
{
method.setAccessible(accessible);
}
}
catch(InvocationTargetException e)
{
throw e.getCause();
}
}
public String toString()
{
return method.toString();
}
}