/**
*
* Copyright 2004 The Apache Software Foundation
*
* 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.geronimo.connector;
import java.io.InvalidObjectException;
import java.io.ObjectStreamException;
import java.io.Serializable;
import java.lang.reflect.Method;
import javax.management.ObjectName;
import net.sf.cglib.proxy.MethodInterceptor;
import net.sf.cglib.proxy.MethodProxy;
import org.apache.geronimo.kernel.Kernel;
/**
* MethodInterceptor used by various Proxies. The important part of this class is the
* deserialization in the readResolve method.
*
* @version $Revision: 1.3 $ $Date: 2004/06/12 18:43:31 $
*
* */
public class ConnectorMethodInterceptor implements MethodInterceptor, Serializable {
private final String kernelName;
private final ObjectName targetName;
private transient Object internalProxy;
public ConnectorMethodInterceptor(final String kernelName, final ObjectName targetName) {
this.kernelName = kernelName;
this.targetName = targetName;
}
public Object intercept(final Object o, final Method method, Object[] objects, final MethodProxy methodProxy) throws Throwable {
if (internalProxy == null) {
throw new IllegalStateException("Proxy is not connected");
}
return methodProxy.invoke(internalProxy, objects);
}
public void setInternalProxy(final Object internalProxy) {
this.internalProxy = internalProxy;
}
/**
* Deserializing readResolve method. This uses the stored kernel name and target object name to
* obtain and return the original version of this object that is attached to the actual object of
* interest. This allows serialization of resource-refs and resource-env-refs (admin objects).
* @return
* @throws ObjectStreamException
*/
private Object readResolve() throws ObjectStreamException {
Kernel kernel = Kernel.getKernel(kernelName);
try {
return kernel.invoke(targetName, "getMethodInterceptor");
} catch (Exception e) {
throw (InvalidObjectException)new InvalidObjectException("could not get method interceptor from ManagedConnectionFactoryWrapper").initCause(e);
}
}
}