/*
* TeleStax, Open Source Cloud Communications Copyright 2012.
* 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.mobicents.protocols.ss7.m3ua.impl;
import javolution.util.FastList;
import org.apache.log4j.Logger;
import org.mobicents.protocols.ss7.m3ua.Asp;
import org.mobicents.protocols.ss7.m3ua.Functionality;
import org.mobicents.protocols.ss7.m3ua.impl.fsm.FSM;
import org.mobicents.protocols.ss7.m3ua.impl.fsm.FSMState;
import org.mobicents.protocols.ss7.m3ua.impl.fsm.TransitionHandler;
import org.mobicents.protocols.ss7.m3ua.message.MessageClass;
import org.mobicents.protocols.ss7.m3ua.message.MessageType;
import org.mobicents.protocols.ss7.m3ua.message.mgmt.Notify;
import org.mobicents.protocols.ss7.m3ua.parameter.Status;
import org.mobicents.protocols.ss7.m3ua.parameter.TrafficModeType;
/**
* Called when one of the ASP's of this AS becomes ACTIVE while AS is already ACTIVE
*
* @author amit bhayani
*
*/
public class THLocalAsActToActRemAspAct implements TransitionHandler {
private static final Logger logger = Logger.getLogger(THLocalAsActToActRemAspAct.class);
private AsImpl asImpl = null;
private FSM fsm;
public THLocalAsActToActRemAspAct(AsImpl asImpl, FSM fsm) {
this.asImpl = asImpl;
this.fsm = fsm;
}
public boolean process(FSMState state) {
try {
if (this.asImpl.getTrafficModeType().getMode() == TrafficModeType.Broadcast) {
// We don't handle this
return false;
}
AspImpl remAsp = (AspImpl) this.fsm.getAttribute(AsImpl.ATTRIBUTE_ASP);
if (this.asImpl.getTrafficModeType().getMode() == TrafficModeType.Loadshare
&& asImpl.getFunctionality() != Functionality.IPSP) {
// Send Notify only for ASP or SGW
// Iterate through ASP's and send AS_ACTIVE to ASP's who
// are INACTIVE
for (FastList.Node<Asp> n = this.asImpl.appServerProcs.head(), end = this.asImpl.appServerProcs.tail(); (n = n
.getNext()) != end;) {
AspImpl remAspImpl = (AspImpl) n.getValue();
FSM aspPeerFSM = remAspImpl.getPeerFSM();
AspState aspState = AspState.getState(aspPeerFSM.getState().getName());
if (aspState == AspState.INACTIVE) {
Notify msg = createNotify(remAspImpl, Status.STATUS_AS_State_Change, Status.INFO_AS_ACTIVE);
remAspImpl.getAspFactory().write(msg);
}
}
} else if (this.asImpl.getTrafficModeType().getMode() == TrafficModeType.Override) {
// Look at 5.2.2. 1+1 Sparing, Backup Override
for (FastList.Node<Asp> n = this.asImpl.appServerProcs.head(), end = this.asImpl.appServerProcs.tail(); (n = n
.getNext()) != end;) {
AspImpl remAspImpl = (AspImpl) n.getValue();
FSM aspPeerFSM = remAspImpl.getPeerFSM();
AspState aspState = AspState.getState(aspPeerFSM.getState().getName());
// Transition the other ASP to INACTIVE
if (aspState == AspState.ACTIVE && !(remAspImpl.getName().equals(remAsp.getName()))) {
if (asImpl.getFunctionality() != Functionality.IPSP) {
// Send Notify only for ASP or SGW
Notify msg = createNotify(remAspImpl, Status.STATUS_Other, Status.INFO_Alternate_ASP_Active);
remAspImpl.getAspFactory().write(msg);
}
// Transition this ASP to INACTIVE
aspPeerFSM.signal(TransitionState.OTHER_ALTERNATE_ASP_ACTIVE);
break;
}
}
}
return true;
} catch (Exception e) {
logger.error(String.format("Error while translating Rem AS to INACTIVE. %s", this.fsm.toString()), e);
}
// something wrong
return false;
}
private Notify createNotify(AspImpl remAsp, int type, int info) {
Notify msg = (Notify) this.asImpl.getMessageFactory().createMessage(MessageClass.MANAGEMENT, MessageType.NOTIFY);
Status status = this.asImpl.getParameterFactory().createStatus(type, info);
msg.setStatus(status);
if (remAsp.getASPIdentifier() != null) {
msg.setASPIdentifier(remAsp.getASPIdentifier());
}
if (this.asImpl.getRoutingContext() != null) {
msg.setRoutingContext(this.asImpl.getRoutingContext());
}
return msg;
}
}