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/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package javax.xml.soap;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.logging.Logger;
/** A factory for creating SOAPConnection objects. Implementation of this class
* is optional. If SOAPConnectionFactory.newInstance() throws an
* UnsupportedOperationException then the implementation does not support the
* SAAJ communication infrastructure. Otherwise SOAPConnection objects can be
* created by calling createConnection() on the newly created
* SOAPConnectionFactory object.
*
* @author Scott.Stark@jboss.org
* @author Thomas.Diesler@jboss.org
* @version $Revision: 3576 $
*/
public abstract class SOAPConnectionFactory
{
// provide logging
private static Logger log = Logger.getLogger(SOAPConnectionFactory.class.getName());
private static final String DEFAULT_SOAP_CONNECTION_FACTORY = "org.jboss.ws.core.soap.SOAPConnectionFactoryImpl";
private static final String[] alternativeFactories = new String[] { "org.jboss.webservice.soap.SOAPConnectionFactoryImpl",
"org.jboss.axis.soap.SOAPConnectionFactoryImpl" };
/** Creates an instance of the default SOAPConnectionFactory object.
*
* @return
* @throws SOAPException
* @throws UnsupportedOperationException
*/
public static SOAPConnectionFactory newInstance() throws SOAPException, UnsupportedOperationException
{
PrivilegedAction action = new PropertyAccessAction(SOAPConnectionFactory.class.getName(), DEFAULT_SOAP_CONNECTION_FACTORY);
String factoryName = (String)AccessController.doPrivileged(action);
ClassLoader loader = Thread.currentThread().getContextClassLoader();
try
{
try
{
Class factoryClass = loader.loadClass(factoryName);
return (SOAPConnectionFactory)factoryClass.newInstance();
}
catch (ClassNotFoundException e)
{
// Throw the exception if the user asked for a specific factory
if (factoryName.equals(DEFAULT_SOAP_CONNECTION_FACTORY) == false)
throw e;
for (int i = 0; i < alternativeFactories.length; i++)
{
factoryName = alternativeFactories[i];
try
{
Class factoryClass = loader.loadClass(factoryName);
return (SOAPConnectionFactory)factoryClass.newInstance();
}
catch (ClassNotFoundException e1)
{
log.severe("Cannot load factory: " + factoryName);
}
}
}
}
catch (Throwable t)
{
throw new SOAPException("Failed to create SOAPConnectionFactory: " + factoryName, t);
}
throw new SOAPException("Cannot find SOAPConnectionFactory implementation");
}
public abstract SOAPConnection createConnection() throws SOAPException;
private static class PropertyAccessAction implements PrivilegedAction
{
private String name;
private String defaultValue;
PropertyAccessAction(String name, String defaultValue)
{
this.name = name;
this.defaultValue = defaultValue;
}
public Object run()
{
return System.getProperty(name, defaultValue);
}
}
}
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