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ResourceLinkFactory.java
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ResourceLinkFactory.java
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/*
* Copyright (c) 1997-2018 Oracle and/or its affiliates. All rights reserved.
* 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.naming.factory;
import java.util.Hashtable;
import java.sql.Driver;
import java.sql.DriverManager;
import javax.naming.Name;
import javax.naming.Context;
import javax.naming.NamingException;
import javax.naming.Reference;
import javax.naming.RefAddr;
import javax.naming.spi.ObjectFactory;
import org.apache.naming.ResourceLinkRef;
/**
* <p>Object factory for resource links.</p>
*
* @author Remy Maucherat
* @version $Revision: 1.2 $ $Date: 2005/12/08 01:29:07 $
*/
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) {
if (globalContext != null)
return;
SecurityManager securityManager = System.getSecurityManager();
if (securityManager != null) {
securityManager.checkPermission(new RuntimePermission(
ResourceLinkFactory.class.getName() + ".setGlobalContext"));
}
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);
}
}