/*
* TeleStax, Open Source Cloud Communications
* Copyright 2011-2016, TeleStax Inc. and individual contributors
* by the @authors tag.
*
* This program is free software: you can redistribute it and/or modify
* under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation; either version 3 of
* the License, or (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* JBoss, Home of Professional Open Source
* Copyright 2007-2011, Red Hat, Inc. and individual contributors
* 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 org.jdiameter.server.impl.agent;
import java.io.IOException;
import java.util.Properties;
import org.jdiameter.api.Answer;
import org.jdiameter.api.Avp;
import org.jdiameter.api.AvpDataException;
import org.jdiameter.api.AvpSet;
import org.jdiameter.api.IllegalDiameterStateException;
import org.jdiameter.api.Request;
import org.jdiameter.api.ResultCode;
import org.jdiameter.api.RouteException;
import org.jdiameter.client.api.IContainer;
import org.jdiameter.client.api.IMessage;
import org.jdiameter.client.api.IRequest;
import org.jdiameter.client.api.controller.IRealm;
import org.jdiameter.client.api.controller.IRealmTable;
import org.jdiameter.server.api.agent.IAgentConfiguration;
import org.jdiameter.server.api.agent.IRedirect;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
*
* @author <a href="mailto:baranowb@gmail.com"> Bartosz Baranowski </a>
* @author <a href="mailto:brainslog@gmail.com"> Alexandre Mendonca </a>
*/
public class RedirectAgentImpl extends AgentImpl implements IRedirect {
private static final Logger logger = LoggerFactory.getLogger(RedirectAgentImpl.class);
/**
* @param container
* @param peerTable
* @param realmTable
*/
public RedirectAgentImpl(IContainer container, IRealmTable realmTable) {
super(container, realmTable);
}
public static final int RESULT_REDIRECT_INDICATION = ResultCode.REDIRECT_INDICATION;
public static final int RESULT_INVALID_AVP_VALUE = ResultCode.INVALID_AVP_VALUE;
/*
* (non-Javadoc)
* @see org.jdiameter.server.api.agent.IAgent#processRequest(org.jdiameter.client.api.IRequest, org.jdiameter.client.api.controller.IRealm)
*/
@Override
public Answer processRequest(IRequest request, IRealm matchedRealm) {
try {
Answer ans = request.createAnswer(RESULT_REDIRECT_INDICATION);
AvpSet set = ans.getAvps();
String[] destHosts = matchedRealm.getPeerNames();
for (String host:destHosts) {
set.addAvp(Avp.REDIRECT_HOST, host, false);
}
IAgentConfiguration agentConfiguration = matchedRealm.getAgentConfiguration();
//default
int rhuValue = RHU_REALM_AND_APPLICATION;
if (agentConfiguration != null) {
Properties p = agentConfiguration.getProperties();
try {
rhuValue = Integer.parseInt(p.getProperty(RHU_PROPERTY, "" + rhuValue));
}
catch (Exception e) {
if (logger.isWarnEnabled()) {
logger.warn("Failed to parse configuration value. ", e);
}
}
}
set.addAvp(Avp.REDIRECT_HOST_USAGE, rhuValue);
ans.setError(true);
super.container.sendMessage((IMessage) ans);
}
catch (Exception e) {
if (logger.isDebugEnabled()) {
logger.debug("Failure when trying to send Answer", e);
}
Answer ans = request.createAnswer(RESULT_INVALID_AVP_VALUE);
// now lets do the magic.
if (e instanceof AvpDataException && ((AvpDataException) e).getAvp() != null) {
// lets add failed if its present
AvpSet failedAvp = ans.getAvps().addGroupedAvp(Avp.FAILED_AVP);
failedAvp.addAvp(((AvpDataException) e).getAvp());
}
try {
container.sendMessage((IMessage) ans);
}
catch (RouteException re) {
if (logger.isDebugEnabled()) {
logger.debug("Failure when trying to send failure answer", re);
}
}
catch (AvpDataException ade) {
if (logger.isDebugEnabled()) {
logger.debug("Failure when trying to send failure answer", ade);
}
}
catch (IllegalDiameterStateException idse) {
if (logger.isDebugEnabled()) {
logger.debug("Failure when trying to send failure answer", idse);
}
}
catch (IOException ioe) {
if (logger.isDebugEnabled()) {
logger.debug("Failure when trying to send failure answer", ioe);
}
}
}
return null;
}
/*
* (non-Javadoc)
* @see org.jdiameter.api.EventListener#receivedSuccessMessage(org.jdiameter.api.Message, org.jdiameter.api.Message)
*/
@Override
public void receivedSuccessMessage(Request request, Answer answer) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
* @see org.jdiameter.api.EventListener#timeoutExpired(org.jdiameter.api.Message)
*/
@Override
public void timeoutExpired(Request request) {
// TODO Auto-generated method stub
}
}