org.apache.naming.factory.ResourceLinkFactory Maven / Gradle / Ivy
/*
* 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.naming.factory;
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.Name;
import javax.naming.NamingException;
import javax.naming.RefAddr;
import javax.naming.Reference;
import javax.naming.spi.ObjectFactory;
import org.apache.naming.ResourceLinkRef;
/**
* Object factory for resource links.
*
* @author Remy Maucherat
* @version $Id: ResourceLinkFactory.java 939311 2010-04-29 14:01:02Z kkolinko $
*/
public class ResourceLinkFactory
implements ObjectFactory {
// ----------------------------------------------------------- Constructors
// ------------------------------------------------------- Static Variables
/**
* Global naming context.
*/
private static Context globalContext = null;
// --------------------------------------------------------- Public Methods
/**
* Set the global context (note: can only be used once).
*
* @param newGlobalContext new global context value
*/
public static void setGlobalContext(Context newGlobalContext) {
globalContext = newGlobalContext;
}
// -------------------------------------------------- ObjectFactory Methods
/**
* Create a new DataSource instance.
*
* @param obj The reference object describing the DataSource
*/
public Object getObjectInstance(Object obj, Name name, Context nameCtx,
Hashtable environment)
throws NamingException {
if (!(obj instanceof ResourceLinkRef))
return null;
// Can we process this request?
Reference ref = (Reference) obj;
// Read the global ref addr
String globalName = null;
RefAddr refAddr = ref.get(ResourceLinkRef.GLOBALNAME);
if (refAddr != null) {
globalName = refAddr.getContent().toString();
Object result = null;
result = globalContext.lookup(globalName);
// FIXME: Check type
return result;
}
return (null);
}
}