/*
* Copyright 2003, 2004, 2005 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.ant;
import hermes.Domain;
import hermes.Hermes;
import hermes.config.DestinationConfig;
import java.io.File;
import java.io.FileOutputStream;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Enumeration;
import javax.jms.Message;
import javax.jms.QueueBrowser;
import org.apache.tools.ant.BuildException;
/**
* Ant task to browse a queue and write the messages out as XML to a file.
*
* @author colincrist@hermesjms.com
*/
public class BrowseQueueTask extends AbstractTask
{
private String queue;
private String file;
public void execute() throws BuildException
{
if ( queue == null)
{
throw new BuildException("queue property not set");
}
if ( file == null)
{
throw new BuildException("file property for the message XML file not set");
}
try
{
final Hermes myHermes = HermesFactory.createHermes(getConfig(), getHermes()) ;
final DestinationConfig destination = myHermes.getDestinationConfig(getQueue(), Domain.QUEUE) ;
final Collection<Message> messages = new ArrayList<Message>() ;
final FileOutputStream ostream = new FileOutputStream(new File(getFile())) ;
final QueueBrowser browser = myHermes.createBrowser(destination) ;
for (Enumeration iter = browser.getEnumeration() ; iter.hasMoreElements() ; )
{
messages.add((Message) iter.nextElement()) ;
}
myHermes.toXML(messages, ostream) ;
log(messages.size() + " message(s) written to file " + getFile() + " from " + getQueue() + " on " + getHermes()) ;
browser.close() ;
ostream.close() ;
myHermes.close() ;
}
catch (Exception e)
{
throw new BuildException(e);
}
}
public String getFile()
{
return file;
}
public void setFile(String file)
{
this.file = file;
}
public String getQueue()
{
return queue;
}
public void setQueue(String queue)
{
this.queue = queue;
}
}