public boolean process(FSMState state) {
AspImpl causeAsp = (AspImpl) this.fsm.getAttribute(AsImpl.ATTRIBUTE_ASP);
try {
FSM aspLocalFSM = causeAsp.getLocalFSM();
aspLocalFSM.signal(TransitionState.OTHER_ALTERNATE_ASP_ACTIVE);
} catch (UnknownTransitionException e) {
logger.error(e.getMessage(), e);
}
return true;
}
private void handleAspInactiveAck(AspImpl aspImpl, ASPInactiveAck aspInactiveAck) {
FSM aspLocalFSM = aspImpl.getLocalFSM();
if (aspLocalFSM == null) {
logger.error(
String.format(
"Received ASPINACTIVE_ACK=%s for ASP=%s. But local FSM is null.",
aspInactiveAck, this.aspFactoryImpl.getName()));
return;
}
AsImpl asImpl = (AsImpl) aspImpl.getAs();
try {
aspLocalFSM.signal(TransitionState.ASP_INACTIVE_ACK);
if (this.aspFactoryImpl.getFunctionality() == Functionality.IPSP) {
// If its IPSP, we know NTFY will not be received,
// so transition AS FSM here
FSM asPeerFSM = asImpl.getPeerFSM();
if (asPeerFSM == null) {
logger.error(
String.format(
"Received ASPINACTIVE_ACK=%s for ASP=%s. But Peer FSM of AS=%s is null.",
aspInactiveAck, this.aspFactoryImpl.getName(), asImpl));
return;
}
if (asImpl.getTrafficModeType().getMode() == TrafficModeType.Loadshare) {
// If it is loadshare and if there is atleast one other ASP
// who ACTIVE, dont transition AS to INACTIVE
for (Asp asp : asImpl.applicationServerProcesses) {
AspImpl remAspImpl = (AspImpl) asp;
FSM aspPeerFSM = remAspImpl.getPeerFSM();
AspState aspState = AspState.getState(aspPeerFSM.getState().getName());
if (aspState == AspState.ACTIVE) {
return;
}
}
}
// TODO : Check if other ASP are INACTIVE, if yes ACTIVATE them
asPeerFSM.setAttribute(AsImpl.ATTRIBUTE_ASP, aspImpl);
asPeerFSM.signal(TransitionState.AS_STATE_CHANGE_PENDING);
}
} catch (UnknownTransitionException e) {
logger.error(e.getMessage(), e);
}
}
private void handleAspActiveAck(
AspImpl aspImpl, ASPActiveAck aspActiveAck, TrafficModeType trMode) {
AsImpl asImpl = (AsImpl) aspImpl.getAs();
if (trMode == null) {
trMode = aspImpl.getAs().getDefaultTrafficModeType();
}
asImpl.setTrafficModeType(trMode);
FSM aspLocalFSM = aspImpl.getLocalFSM();
if (aspLocalFSM == null) {
logger.error(
String.format(
"Received ASPACTIVE_ACK=%s for ASP=%s. But local FSM is null.",
aspActiveAck, this.aspFactoryImpl.getName()));
return;
}
try {
aspLocalFSM.signal(TransitionState.ASP_ACTIVE_ACK);
if (aspFactoryImpl.getFunctionality() == Functionality.IPSP) {
// If its IPSP, we know NTFY will not be received,
// so transition AS FSM here
FSM asPeerFSM = asImpl.getPeerFSM();
if (asPeerFSM == null) {
logger.error(
String.format(
"Received ASPACTIVE_ACK=%s for ASP=%s. But Peer FSM of AS=%s is null.",
aspActiveAck, this.aspFactoryImpl.getName(), asImpl));
return;
}
asPeerFSM.setAttribute(AsImpl.ATTRIBUTE_ASP, aspImpl);
asPeerFSM.signal(TransitionState.AS_STATE_CHANGE_ACTIVE);
}
} catch (UnknownTransitionException e) {
logger.error(e.getMessage(), e);
}
}
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;
}
private void handleAspInactive(AspImpl aspImpl, ASPInactive aspInactive) {
AsImpl appServer = (AsImpl) aspImpl.getAs();
FSM aspPeerFSM = aspImpl.getPeerFSM();
if (aspPeerFSM == null) {
logger.error(
String.format(
"Received ASPINACTIVE=%s for ASP=%s. But peer FSM for ASP is null.",
aspInactive, this.aspFactoryImpl.getName()));
return;
}
FSM asLocalFSM = appServer.getLocalFSM();
if (asLocalFSM == null) {
logger.error(
String.format(
"Received ASPINACTIVE=%s for ASP=%s. But local FSM for AS is null.",
aspInactive, this.aspFactoryImpl.getName()));
return;
}
ASPInactiveAck aspInactAck =
(ASPInactiveAck)
this.aspFactoryImpl.messageFactory.createMessage(
MessageClass.ASP_TRAFFIC_MAINTENANCE, MessageType.ASP_INACTIVE_ACK);
aspInactAck.setRoutingContext(appServer.getRoutingContext());
this.aspFactoryImpl.write(aspInactAck);
try {
aspPeerFSM.setAttribute(FSM.ATTRIBUTE_MESSAGE, aspInactive);
aspPeerFSM.signal(TransitionState.ASP_INACTIVE);
// Signal AS to transition
asLocalFSM.setAttribute(AsImpl.ATTRIBUTE_ASP, aspImpl);
asLocalFSM.signal(TransitionState.ASP_INACTIVE);
} catch (UnknownTransitionException e) {
logger.error(e.getMessage(), e);
}
}
public boolean process(FSMState state) {
try {
AspImpl remAsp = (AspImpl) this.fsm.getAttribute(AsImpl.ATTRIBUTE_ASP);
if (this.asImpl.getTrafficModeType().getMode() == TrafficModeType.Broadcast) {
// We don't support this
return false;
}
if (this.asImpl.getTrafficModeType().getMode() == TrafficModeType.Loadshare) {
this.lbCount = 0;
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.ACTIVE) {
this.lbCount++;
}
} // for
if (this.lbCount >= this.asImpl.getMinAspActiveForLb()) {
// we still have more ASP's ACTIVE for lb. Don't change
// state
return false;
}
// We are below minAspActiveForLb required for LB
if (this.lbCount > 0) {
// But In any case if we have at least one ASP that can take
// care of traffic, don't change state but send the "Ins.
// ASPs" to INACTIVE ASP's
if (asImpl.getFunctionality() != Functionality.IPSP) {
// In any case send Notify only for ASP or SGW
for (FastList.Node<Asp> n = this.asImpl.appServerProcs.head(),
end = this.asImpl.appServerProcs.tail();
(n = n.getNext()) != end; ) {
remAsp = (AspImpl) n.getValue();
FSM aspPeerFSM = remAsp.getPeerFSM();
AspState aspState = AspState.getState(aspPeerFSM.getState().getName());
if (aspState == AspState.INACTIVE) {
Notify notify =
this.createNotify(
remAsp, Status.STATUS_Other, Status.INFO_Insufficient_ASP_Resources_Active);
remAsp.getAspFactory().write(notify);
}
}
}
return false;
}
} // If Loadshare
// We have reached here means AS is transitioning to be PENDING.
// Send new AS STATUS to all INACTIVE APS's
if (asImpl.getFunctionality() != Functionality.IPSP) {
// Send Notify only for ASP or SGW
for (FastList.Node<Asp> n = this.asImpl.appServerProcs.head(),
end = this.asImpl.appServerProcs.tail();
(n = n.getNext()) != end; ) {
remAsp = (AspImpl) n.getValue();
FSM aspPeerFSM = remAsp.getPeerFSM();
AspState aspState = AspState.getState(aspPeerFSM.getState().getName());
if (aspState == AspState.INACTIVE) {
Notify notify =
this.createNotify(remAsp, Status.STATUS_AS_State_Change, Status.INFO_AS_PENDING);
remAsp.getAspFactory().write(notify);
}
}
}
} catch (Exception e) {
logger.error(
String.format("Error while translating Rem AS to PENDING. %s", this.fsm.toString()), e);
}
return true;
}
private void handleAspActive(AspImpl aspImpl, ASPActive aspActive) {
AsImpl appServer = (AsImpl) aspImpl.getAs();
TrafficModeType trfModType = aspActive.getTrafficModeType();
if (appServer.getTrafficModeType() != null) {
// AppServer has Traffic Mode Type defined check if it
// matches with sent ASP ACTIVE Message
if (trfModType != null && appServer.getTrafficModeType().getMode() != trfModType.getMode()) {
// Traffic Mode Type mismatch. Send Error.
// TODO should send error or drop message?
ErrorCode errorCodeObj =
this.aspFactoryImpl.parameterFactory.createErrorCode(
ErrorCode.Unsupported_Traffic_Mode_Type);
this.sendError(appServer.getRoutingContext(), errorCodeObj);
return;
}
// message doesn't have Traffic Mode Type
} else {
// AppServer Traffic Mode Type is optionally configured via
// management config. If not select the first available in
// AspUp message
if (trfModType == null) {
// Asp UP didn't specify the Traffic Mode either. use
// default which is loadshare
appServer.setDefaultTrafficModeType();
} else {
// Set the Traffic Mode Type passed in ASP ACTIVE
appServer.setTrafficModeType(trfModType);
}
}
FSM aspPeerFSM = aspImpl.getPeerFSM();
if (aspPeerFSM == null) {
logger.error(
String.format(
"Received ASPACTIVE=%s for ASP=%s. But peer FSM for ASP is null.",
aspActive, this.aspFactoryImpl.getName()));
return;
}
FSM asLocalFSM = appServer.getLocalFSM();
if (asLocalFSM == null) {
logger.error(
String.format(
"Received ASPACTIVE=%s for ASP=%s. But local FSM for AS is null.",
aspActive, this.aspFactoryImpl.getName()));
return;
}
ASPActiveAck aspActAck =
(ASPActiveAck)
this.aspFactoryImpl.messageFactory.createMessage(
MessageClass.ASP_TRAFFIC_MAINTENANCE, MessageType.ASP_ACTIVE_ACK);
aspActAck.setTrafficModeType(appServer.getTrafficModeType());
aspActAck.setRoutingContext(appServer.getRoutingContext());
this.aspFactoryImpl.write(aspActAck);
try {
aspPeerFSM.setAttribute(FSM.ATTRIBUTE_MESSAGE, aspActive);
aspPeerFSM.signal(TransitionState.ASP_ACTIVE);
// Signal AS to transition
asLocalFSM.setAttribute(AsImpl.ATTRIBUTE_ASP, aspImpl);
asLocalFSM.signal(TransitionState.ASP_ACTIVE);
} catch (UnknownTransitionException e) {
logger.error(e.getMessage(), e);
}
}