/*
* Copyright 2003,2004 Colin Crist
*
* 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 hermes.providers.file;
import hermes.HermesException;
import hermes.MessageFactory;
import java.io.IOException;
import java.util.Enumeration;
import javax.jms.JMSException;
import javax.jms.Queue;
import javax.jms.QueueBrowser;
import org.apache.commons.collections.iterators.IteratorEnumeration;
/**
* An XML file provider.
*
* @author colincrist@hermesjms.com
* @version $Id: FileQueueBrowser.java,v 1.5 2007/02/28 10:47:29 colincrist Exp $
*/
public class FileQueueBrowser implements QueueBrowser
{
private FileQueue queue;
private String selector;
private MessageFactory factory;
/**
*
*/
public FileQueueBrowser(MessageFactory factory, FileQueue queue, String selector)
{
super();
this.factory = factory;
this.queue = queue;
this.selector = selector;
}
public FileQueueBrowser(MessageFactory factory, FileQueue queue)
{
this(factory, queue, null);
}
/*
* (non-Javadoc)
*
* @see javax.jms.QueueBrowser#close()
*/
public void close() throws JMSException
{
// NOP
}
/*
* (non-Javadoc)
*
* @see javax.jms.QueueBrowser#getEnumeration()
*/
public Enumeration getEnumeration() throws JMSException
{
try
{
return new IteratorEnumeration(queue.getMessages(factory, selector).iterator());
}
catch (IOException e)
{
throw new HermesException(e);
}
}
/*
* (non-Javadoc)
*
* @see javax.jms.QueueBrowser#getMessageSelector()
*/
public String getMessageSelector() throws JMSException
{
return selector;
}
/*
* (non-Javadoc)
*
* @see javax.jms.QueueBrowser#getQueue()
*/
public Queue getQueue() throws JMSException
{
return queue;
}
}