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/*
* 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.jackrabbit.servlet.remote;
import javax.jcr.RepositoryException;
import org.apache.jackrabbit.rmi.client.ClientAdapterFactory;
import org.apache.jackrabbit.rmi.client.LocalAdapterFactory;
import org.apache.jackrabbit.servlet.AbstractRepositoryServlet;
/**
* Abstract base class for servlets that make a remote repository available
* locally in the servlet context.
*
* The supported initialization parameters of this servlet are:
*
* - javax.jcr.Repository
* -
* Name of the servlet context attribute to put the repository in.
* The default value is "
javax.jcr.Repository".
*
* - org.apache.jackrabbit.rmi.client.LocalAdapterFactory
* -
* Name of the local adapter factory class used to create the local
* adapter for the remote repository. The configured class should have
* public constructor that takes no arguments.
*
*
*
* This servlet can also be mapped to the URL space. See
* {@link AbstractRepositoryServlet} for the details.
*
* @since 1.4
*/
public abstract class RemoteRepositoryServlet
extends AbstractRepositoryServlet {
/**
* Instantiates and returns the configured local adapter factory.
*
* @return local adapter factory
* @throws RepositoryException if the factory could not be instantiated
*/
protected LocalAdapterFactory getLocalAdapterFactory()
throws RepositoryException {
String name = getInitParameter(
LocalAdapterFactory.class.getName(),
ClientAdapterFactory.class.getName());
try {
Class factoryClass = Class.forName(name);
return (LocalAdapterFactory) factoryClass.newInstance();
} catch (ClassNotFoundException e) {
throw new RepositoryException(
"Local adapter factory class not found: " + name, e);
} catch (InstantiationException e) {
throw new RepositoryException(
"Failed to instantiate the adapter factory: " + name, e);
} catch (IllegalAccessException e) {
throw new RepositoryException(
"Adapter factory constructor is not public: " + name, e);
} catch (ClassCastException e) {
throw new RepositoryException(
"Invalid local adapter factory class: " + name, e);
}
}
}