/**
* 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.geronimo.connector;
import java.util.Set;
import javax.resource.spi.ResourceAdapterAssociation;
import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;
import javax.validation.Validator;
import javax.validation.ValidatorFactory;
/**
* Wrapper around AdminObject that manages the AdminObject lifecycle.
*
* @version $Rev: 1005848 $ $Date: 2010-10-08 22:44:55 +0800 (Fri, 08 Oct 2010) $
*/
public class AdminObjectWrapper {
private final String adminObjectInterface;
private final String adminObjectClass;
protected ResourceAdapterWrapper resourceAdapterWrapper;
protected Object adminObject;
private final ValidatorFactory validatorFactory;
/**
* Normal managed constructor.
*
* @param adminObjectInterface Interface the proxy will implement.
* @param adminObjectClass Class of admin object to be wrapped.
* @throws IllegalAccessException
* @throws InstantiationException
*/
public AdminObjectWrapper(final String adminObjectInterface,
final String adminObjectClass,
final ResourceAdapterWrapper resourceAdapterWrapper,
final ClassLoader cl,
final ValidatorFactory validatorFactory) throws IllegalAccessException, InstantiationException, ClassNotFoundException {
this.adminObjectInterface = adminObjectInterface;
this.adminObjectClass = adminObjectClass;
this.resourceAdapterWrapper = resourceAdapterWrapper;
this.validatorFactory = validatorFactory;
Class clazz = cl.loadClass(adminObjectClass);
adminObject = clazz.newInstance();
}
public String getAdminObjectInterface() {
return adminObjectInterface;
}
/**
* Returns class of wrapped AdminObject.
* @return class of wrapped AdminObject
*/
public String getAdminObjectClass() {
return adminObjectClass;
}
/**
* Starts the AdminObject. This will validate the instance and register the object instance
* with its ResourceAdapter
*
* @throws Exception if the target failed to start; this will cause a transition to the failed state
*/
public void doStart() throws Exception {
// if we have a validator factory at this point, then validate
// the resource adaptor instance
if (validatorFactory != null) {
Validator validator = validatorFactory.getValidator();
Set generalSet = validator.validate(adminObject);
if (!generalSet.isEmpty()) {
throw new ConstraintViolationException("Constraint violation for AdminObject " + adminObjectClass, generalSet);
}
}
if (adminObject instanceof ResourceAdapterAssociation) {
if (resourceAdapterWrapper == null) {
throw new IllegalStateException("Admin object expects to be registered with a ResourceAdapter, but there is no ResourceAdapter");
}
resourceAdapterWrapper.registerResourceAdapterAssociation((ResourceAdapterAssociation) adminObject);
}
}
/**
* Stops the target. This is a NOP for AdminObjects
*
* @throws Exception if the target failed to stop; this will cause a transition to the failed state
*/
public void doStop() throws Exception {
}
/**
* Fails the target. This is a nop for an AdminObject.
*/
public void doFail() {
}
}