/*
* $Header: /home/cvs/jakarta-tomcat-4.0/catalina/src/share/org/apache/naming/factory/TyrexResourceFactory.java,v 1.1 2002/06/28 12:44:41 remm Exp $
* $Revision: 1.1 $
* $Date: 2002/06/28 12:44:41 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* ====================================================================
*
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* individuals on behalf of the Apache Software Foundation. For more
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*
* [Additional notices, if required by prior licensing conditions]
*
*/
package org.apache.naming.factory;
import java.util.Hashtable;
import java.util.Iterator;
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 java.net.URL;
import org.apache.naming.ResourceRef;
import tyrex.tm.TransactionDomain;
import tyrex.resource.Resources;
import tyrex.resource.ResourceConfig;
/**
* Object factory for Tyrex Resources.<br>
*
* This class retrieves Tyrex resources that are configured in the
* TransactionDomain. The type of Resource returned is specified in
* Tyrex's domain configuration file.
*
* Tyrex is an open-source transaction manager, developed by Assaf Arkin and
* exolab.org. See the <a href="http://tyrex.exolab.org/">Tyrex homepage</a>
* for more details about Tyrex and downloads.
*
* @author David Haraburda
* @version $Revision: 1.1 $ $Date: 2002/06/28 12:44:41 $
*/
public class TyrexResourceFactory
extends TyrexFactory {
// ----------------------------------------------------------- Constructors
// -------------------------------------------------------------- Constants
public static final String RESOURCE_NAME = "name";
public static final String DEFAULT_RESOURCE_NAME = "tomcat";
// ----------------------------------------------------- Instance Variables
// --------------------------------------------------------- Public Methods
// -------------------------------------------------- ObjectFactory Methods
/**
* Create a new Resource instance. The type of Resource is dependant
* upon Tyrex's domain configuration.
*
* @param obj The reference object describing the Resource
*/
public Object getObjectInstance(Object obj, Name name, Context nameCtx,
Hashtable environment)
throws NamingException {
if (obj instanceof ResourceRef) {
Reference ref = (Reference) obj;
if (ref.getClassName().equals("tyrex.resource.Resource")) {
try {
Resources resources =
getTransactionDomain().getResources();
RefAddr nameAddr = ref.get(RESOURCE_NAME);
if (nameAddr != null) {
return resources
.getResource(nameAddr.getContent().toString())
.getClientFactory();
} else {
return resources.getResource(DEFAULT_RESOURCE_NAME)
.getClientFactory();
}
} catch (Throwable t) {
log("Cannot create Tyrex Resource, Exception", t);
throw new NamingException
("Exception creating Tyrex Resource: "
+ t.getMessage());
}
}
}
return null;
}
// -------------------------------------------------------- Private Methods
private void log(String message) {
System.out.print("TyrexResourceFactory: ");
System.out.println(message);
}
private void log(String message, Throwable exception) {
log(message);
exception.printStackTrace(System.out);
}
}