/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file 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 org.jboss.resource.adapter.mail.inflow;
import java.lang.reflect.Method;
import javax.resource.spi.endpoint.MessageEndpointFactory;
import javax.resource.spi.endpoint.MessageEndpoint;
import javax.resource.spi.work.Work;
import javax.mail.Message;
import org.jboss.resource.adapter.mail.MailResourceAdapter;
import org.jboss.logging.Logger;
/**
* The MailActivation encapsulates a MailResourceAdapter#endpointActivation
* {@link javax.resource.spi.ResourceAdapter#endpointActivation(MessageEndpointFactory,javax.resource.spi.ActivationSpec)}
*
* @author Scott.Stark@jboss.org
* @version $Revision: 71554 $
*/
public class MailActivation
implements Comparable, Work
{
private static final Logger log = Logger.getLogger(MailActivation.class);
/**
* The MailListener.onMessage method
*/
public static final Method ON_MESSAGE;
static
{
try
{
Class[] sig = {Message.class};
ON_MESSAGE = MailListener.class.getMethod("onMessage", sig);
}
catch (Exception e)
{
throw new RuntimeException(e);
}
}
/** A flag indicated if the unit of work has been released */
private boolean released;
/** The logging trace level flag */
private boolean trace;
/** The time at which the next new msgs check should be performed */
private long nextNewMsgCheckTime;
/** The resource adapter */
protected MailResourceAdapter ra;
/** The activation spec for the mail folder */
protected MailActivationSpec spec;
/** The message endpoint factory */
protected MessageEndpointFactory endpointFactory;
public MailActivation(MailResourceAdapter ra, MessageEndpointFactory endpointFactory,
MailActivationSpec spec)
{
this.ra = ra;
this.endpointFactory = endpointFactory;
this.spec = spec;
this.trace = log.isTraceEnabled();
}
public long getNextNewMsgCheckTime()
{
return nextNewMsgCheckTime;
}
public void updateNextNewMsgCheckTime(long now)
{
nextNewMsgCheckTime = now + spec.getPollingInterval();
}
public int compareTo(Object obj)
{
MailActivation ma = (MailActivation) obj;
long compareTo = nextNewMsgCheckTime - ma.getNextNewMsgCheckTime();
return (int) compareTo;
}
public boolean isReleased()
{
return released;
}
// --- Begin Work interface
public void release()
{
released = true;
if( trace )
log.trace("released");
}
public void run()
{
released = false;
if( trace )
log.trace("Begin new msgs check");
try
{
MailFolder mailFolder = MailFolder.getInstance(spec);
mailFolder.open();
while(mailFolder.hasNext())
{
Message msg = (Message) mailFolder.next();
deliverMsg(msg);
}
mailFolder.close();
}
catch (Exception e)
{
log.error("Failed to execute folder check, spec="+spec);
}
if( trace )
log.trace("End new msgs check");
}
// --- End Work interface
private void deliverMsg(Message msg)
{
MessageEndpoint endpoint = null;
try
{
endpoint = endpointFactory.createEndpoint(null);
if (endpoint != null)
{
if( trace )
log.trace("deliverMsg, msg subject="+msg.getSubject());
MailListener listener = (MailListener) endpoint;
listener.onMessage(msg);
}
}
catch (Throwable e)
{
log.debug("onMessage delivery failure", e);
}
finally
{
if (endpoint != null)
{
endpoint.release();
}
}
}
}