Examples with EnquireLinkResp com.cloudhopper.smpp.pdu.EnquireLinkResp used on opensource projects

Example 1 with EnquireLinkResp

use of com.cloudhopper.smpp.pdu.EnquireLinkResp in project load-balancer by RestComm.

the class ClientConnectionImpl method packetReceived.

@Override
public void packetReceived(Pdu packet) {
    switch(clientState) {
        case INITIAL:
        case OPEN:
            logger.error("LB received packet (" + packet + ") in initial or open state from " + channel.getRemoteAddress().toString() + " sessionId : " + sessionId);
            break;
        case BINDING:
            Boolean correctPacket = false;
            switch(config.getType()) {
                case TRANSCEIVER:
                    if (packet.getCommandId() == SmppConstants.CMD_ID_BIND_TRANSCEIVER_RESP)
                        correctPacket = true;
                    break;
                case RECEIVER:
                    if (packet.getCommandId() == SmppConstants.CMD_ID_BIND_RECEIVER_RESP)
                        correctPacket = true;
                    break;
                case TRANSMITTER:
                    if (packet.getCommandId() == SmppConstants.CMD_ID_BIND_TRANSMITTER_RESP)
                        correctPacket = true;
                    break;
            }
            if (!correctPacket)
                logger.error("Received invalid packet in binding state, packet type: " + packet.getName());
            else {
                if (packet.getCommandStatus() == SmppConstants.STATUS_OK) {
                    if (logger.isDebugEnabled())
                        logger.debug("LB received bind response (" + packet + ") from " + channel.getRemoteAddress().toString() + ". sessionId : " + sessionId);
                    clientState = ClientState.BOUND;
                    lbClientListener.bindSuccesfull(sessionId, packet);
                } else {
                    logger.error("Binding to " + channel.getRemoteAddress().toString() + " is unsuccesful. sessionId" + sessionId + " , error code: " + packet.getCommandStatus());
                    lbClientListener.bindFailed(sessionId, packet);
                    closeChannel();
                    clientState = ClientState.CLOSED;
                }
            }
            break;
        case BOUND:
            correctPacket = false;
            switch(packet.getCommandId()) {
                case SmppConstants.CMD_ID_CANCEL_SM_RESP:
                case SmppConstants.CMD_ID_DATA_SM_RESP:
                case SmppConstants.CMD_ID_QUERY_SM_RESP:
                case SmppConstants.CMD_ID_REPLACE_SM_RESP:
                case SmppConstants.CMD_ID_SUBMIT_SM_RESP:
                case SmppConstants.CMD_ID_SUBMIT_MULTI_RESP:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received SMPP response (" + packet + ") from " + channel.getRemoteAddress().toString() + ". sessionId: " + sessionId);
                    Integer originalSequence = sequenceMap.remove(packet.getSequenceNumber());
                    if (originalSequence != null) {
                        packet.setSequenceNumber(originalSequence);
                        correctPacket = true;
                        this.lbClientListener.smppEntityResponse(sessionId, packet);
                    }
                    break;
                case SmppConstants.CMD_ID_GENERIC_NACK:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received generic nack (" + packet + ") from " + channel.getRemoteAddress().toString() + ". sessionId : " + sessionId);
                    correctPacket = true;
                    this.lbClientListener.smppEntityResponse(sessionId, packet);
                    break;
                case SmppConstants.CMD_ID_ENQUIRE_LINK_RESP:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received enquire_link response from " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId);
                    correctPacket = true;
                    isEnquireLinkSent = false;
                    connectionCheck.cancel();
                    // connectionCheckServerSideTimer.cancel(false);
                    this.lbClientListener.enquireLinkReceivedFromServer(sessionId);
                    break;
                case SmppConstants.CMD_ID_DATA_SM:
                case SmppConstants.CMD_ID_DELIVER_SM:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received SMPP request (" + packet + ") from " + channel.getRemoteAddress().toString() + ". sessionId : " + sessionId);
                    correctPacket = true;
                    ServerTimerResponse response = new ServerTimerResponse(this, packet);
                    packetMap.put(packet.getSequenceNumber(), new TimerData(packet, monitorExecutor.schedule(response, timeoutResponse, TimeUnit.MILLISECONDS), response));
                    this.lbClientListener.smppEntityRequestFromServer(sessionId, packet);
                    break;
                case SmppConstants.CMD_ID_ENQUIRE_LINK:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received enquire_link request from " + channel.getRemoteAddress().toString() + ". sessionId : " + sessionId);
                    correctPacket = true;
                    EnquireLinkResp resp = new EnquireLinkResp();
                    resp.setSequenceNumber(packet.getSequenceNumber());
                    sendSmppResponse(resp);
                    break;
                case SmppConstants.CMD_ID_UNBIND:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received unbind request from " + channel.getRemoteAddress().toString() + ". sessionId : " + sessionId);
                    correctPacket = true;
                    response = new ServerTimerResponse(this, packet);
                    packetMap.put(packet.getSequenceNumber(), new TimerData(packet, monitorExecutor.schedule(response, timeoutResponse, TimeUnit.MILLISECONDS), response));
                    lbClientListener.unbindRequestedFromServer(sessionId, packet);
                    clientState = ClientState.UNBINDING;
                    break;
            }
            if (!correctPacket) {
                logger.error("LB received invalid packet in bound state. sessionId : " + sessionId + ". packet : " + packet);
            }
            break;
        case REBINDING:
            switch(packet.getCommandId()) {
                case SmppConstants.CMD_ID_BIND_RECEIVER_RESP:
                case SmppConstants.CMD_ID_BIND_TRANSCEIVER_RESP:
                case SmppConstants.CMD_ID_BIND_TRANSMITTER_RESP:
                    if (packet.getCommandStatus() == SmppConstants.STATUS_OK) {
                        if (logger.isDebugEnabled())
                            logger.debug("Connection reconnected to " + channel.getRemoteAddress().toString() + ". sessionId : " + sessionId);
                        this.lbClientListener.reconnectSuccesful(sessionId);
                        clientState = ClientState.BOUND;
                        if (invocationContext.activeNodeKey != null)
                            invocationContext.activeNodeKey = new KeySmpp((Node) new ArrayList(invocationContext.smppNodeMap.values()).get(0));
                    } else {
                        logger.debug("Reconnection to client unsuccessful. client session ID : " + sessionId + ". LB will close session!");
                        this.lbClientListener.unbindRequestedFromServer(sessionId, new Unbind());
                    }
            }
            break;
        case UNBINDING:
            correctPacket = false;
            if (packet.getCommandId() == SmppConstants.CMD_ID_UNBIND_RESP)
                correctPacket = true;
            if (!correctPacket)
                logger.error("LB received invalid packet (" + packet + ") form " + channel.getRemoteAddress().toString() + " in unbinding state. sessionId : " + sessionId);
            else {
                if (logger.isDebugEnabled())
                    logger.debug("LB received unbind response form  " + channel.getRemoteAddress().toString() + ". sessionId : " + sessionId);
                Integer originalSequence = sequenceMap.remove(packet.getSequenceNumber());
                if (originalSequence != null) {
                    packet.setSequenceNumber(originalSequence);
                    this.lbClientListener.unbindSuccesfull(sessionId, packet);
                }
                sequenceMap.clear();
                packetMap.clear();
                closeChannel();
                clientState = ClientState.CLOSED;
            }
            break;
        case CLOSED:
            logger.error("LB received packet (" + packet + ") in closed state from " + channel.getRemoteAddress().toString() + " sessionId : " + sessionId);
            break;
    }
}

Example 2 with EnquireLinkResp

use of com.cloudhopper.smpp.pdu.EnquireLinkResp in project load-balancer by RestComm.

the class MServerConnectionImpl method packetReceived.

@Override
public void packetReceived(Pdu packet) {
    switch(serverState) {
        case OPEN:
            Boolean correctPacket = false;
            switch(packet.getCommandId()) {
                case SmppConstants.CMD_ID_BIND_RECEIVER:
                    correctPacket = true;
                    config.setType(SmppBindType.RECEIVER);
                    break;
                case SmppConstants.CMD_ID_BIND_TRANSCEIVER:
                    correctPacket = true;
                    config.setType(SmppBindType.TRANSCEIVER);
                    break;
                case SmppConstants.CMD_ID_BIND_TRANSMITTER:
                    correctPacket = true;
                    config.setType(SmppBindType.TRANSMITTER);
                    break;
            }
            if (!correctPacket) {
                logger.error("Unable to convert a BaseBind request of server " + channel.getRemoteAddress().toString() + ". session ID: " + sessionId);
                sendGenericNack(packet);
                channel.close();
                serverState = ServerState.CLOSED;
            } else {
                if (logger.isDebugEnabled())
                    logger.debug("LB received bind request (" + packet + ") from server " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId);
                serverState = ServerState.BINDING;
                if (connectionTimer != null) {
                    connectionRunnable.cancel();
                    connectionTimer.cancel(false);
                }
                this.bindRequest = (BaseBind<?>) packet;
                // config.setName("LoadBalancerSession." + this.bindRequest.getSystemId() + "." + this.bindRequest.getSystemType());
                config.setSystemId(this.bindRequest.getSystemId());
                config.setPassword(this.bindRequest.getPassword());
                config.setSystemType(this.bindRequest.getSystemType());
                config.setAddressRange(this.bindRequest.getAddressRange());
                config.setInterfaceVersion(this.bindRequest.getInterfaceVersion());
                CustomerTimerResponse responseTimer = new CustomerTimerResponse(this, packet);
                packetMap.put(packet.getSequenceNumber(), new TimerData(packet, monitorExecutor.schedule(responseTimer, timeoutResponse, TimeUnit.MILLISECONDS), responseTimer));
                userSpace = lbServerListener.bindRequested(sessionId, this, this.bindRequest);
                userSpace.bind(this, packet);
            }
            break;
        case BINDING:
            logger.error("LB received packet in incorrect state (BINDING). session ID : " + sessionId + " .packet : " + packet);
            break;
        case BOUND:
            correctPacket = false;
            switch(packet.getCommandId()) {
                case SmppConstants.CMD_ID_UNBIND:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received unbind request from server " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId);
                    correctPacket = true;
                    enquireRunnable.cancel();
                    enquireTimer.cancel(false);
                    CustomerTimerResponse responseTimer = new CustomerTimerResponse(this, packet);
                    packetMap.put(packet.getSequenceNumber(), new TimerData(packet, monitorExecutor.schedule(responseTimer, timeoutResponse, TimeUnit.MILLISECONDS), responseTimer));
                    userSpace.unbind(sessionId, (Unbind) packet);
                    serverState = ServerState.UNBINDING;
                    break;
                case SmppConstants.CMD_ID_CANCEL_SM:
                case SmppConstants.CMD_ID_DATA_SM:
                case SmppConstants.CMD_ID_QUERY_SM:
                case SmppConstants.CMD_ID_REPLACE_SM:
                case SmppConstants.CMD_ID_SUBMIT_SM:
                case SmppConstants.CMD_ID_SUBMIT_MULTI:
                    // GENERIC_NACK doesn't have responses so we don't have to start response timer
                    responseTimer = new CustomerTimerResponse(this, packet);
                    packetMap.put(packet.getSequenceNumber(), new TimerData(packet, monitorExecutor.schedule(responseTimer, timeoutResponse, TimeUnit.MILLISECONDS), responseTimer));
                case SmppConstants.CMD_ID_GENERIC_NACK:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received SMPP request (" + packet + ") from server " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId);
                    correctPacket = true;
                    userSpace.sendRequestToServer(sessionId, packet);
                    break;
                case SmppConstants.CMD_ID_ENQUIRE_LINK:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received enquire_link request from server " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId);
                    updateLastTimeSMPPLinkUpdated();
                    correctPacket = true;
                    EnquireLinkResp resp = new EnquireLinkResp();
                    resp.setSequenceNumber(packet.getSequenceNumber());
                    sendResponse(resp);
                    break;
                case SmppConstants.CMD_ID_DATA_SM_RESP:
                case SmppConstants.CMD_ID_DELIVER_SM_RESP:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received SMPP response (" + packet + ") from server " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId);
                    CustomerPacket originalSequence = sequenceMap.remove(packet.getSequenceNumber());
                    if (originalSequence != null) {
                        packet.setSequenceNumber(originalSequence.getSequence());
                        correctPacket = true;
                        userSpace.sendResponseToServer(sessionId, packet, originalSequence.getSessionId());
                    }
                    break;
                case SmppConstants.CMD_ID_ENQUIRE_LINK_RESP:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received enquire_link response from server " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId);
                    correctPacket = true;
                    updateLastTimeSMPPLinkUpdated();
                    break;
            }
            if (!correctPacket) {
                sendGenericNack(packet);
            }
            break;
        case REBINDING:
            if (logger.isDebugEnabled())
                logger.debug("LB received packet (" + packet + ") in REBINDING state from server " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId + ". LB sent SYSERR responses!");
            if (packet instanceof PduRequest<?>) {
                PduResponse pduResponse = ((PduRequest<?>) packet).createResponse();
                pduResponse.setCommandStatus(SmppConstants.STATUS_SYSERR);
                sendResponse(pduResponse);
            } else {
                correctPacket = true;
                updateLastTimeSMPPLinkUpdated();
            }
            break;
        case UNBINDING:
            correctPacket = false;
            if (packet.getCommandId() == SmppConstants.CMD_ID_UNBIND_RESP)
                correctPacket = true;
            if (!correctPacket)
                logger.error("LB received invalid packet in unbinding state from serevr " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId + ". packet : " + packet);
            else {
                if (logger.isDebugEnabled())
                    logger.debug("LB received unbind response from server " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId);
                enquireRunnable.cancel();
                enquireTimer.cancel(false);
                packetMap.clear();
                sequenceMap.clear();
                channel.close();
                serverState = ServerState.CLOSED;
            }
            break;
        case CLOSED:
            logger.error("LB received packet in incorrect state (CLOSED) from serevr " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId + ". packet : " + packet);
            break;
    }
}

Example 3 with EnquireLinkResp

use of com.cloudhopper.smpp.pdu.EnquireLinkResp in project load-balancer by RestComm.

the class DefaultSmppClientHandler method firePduRequestReceived.

@Override
public PduResponse firePduRequestReceived(@SuppressWarnings("rawtypes") PduRequest pduRequest) {
    if (pduRequest.getCommandId() == SmppConstants.CMD_ID_ENQUIRE_LINK) {
        enqLinkNumber.incrementAndGet();
        EnquireLinkResp resp = new EnquireLinkResp();
        resp.setSequenceNumber(pduRequest.getSequenceNumber());
        return resp;
    } else if (pduRequest.getCommandId() == SmppConstants.CMD_ID_DATA_SM) {
        requestFromServerNumber.getAndIncrement();
        return pduRequest.createResponse();
    }
    return null;
}

Example 4 with EnquireLinkResp

use of com.cloudhopper.smpp.pdu.EnquireLinkResp in project load-balancer by RestComm.

the class ServerConnectionImpl method packetReceived.

@SuppressWarnings("rawtypes")
@Override
public void packetReceived(Pdu packet) {
    switch(serverState) {
        case OPEN:
            Boolean correctPacket = false;
            switch(packet.getCommandId()) {
                case SmppConstants.CMD_ID_BIND_RECEIVER:
                    correctPacket = true;
                    config.setType(SmppBindType.RECEIVER);
                    break;
                case SmppConstants.CMD_ID_BIND_TRANSCEIVER:
                    correctPacket = true;
                    config.setType(SmppBindType.TRANSCEIVER);
                    break;
                case SmppConstants.CMD_ID_BIND_TRANSMITTER:
                    correctPacket = true;
                    config.setType(SmppBindType.TRANSMITTER);
                    break;
            }
            if (!correctPacket) {
                logger.error("Unable to convert a BaseBind request from " + channel.getRemoteAddress().toString() + ". session ID: " + sessionId);
                sendGenericNack(packet);
                channel.close();
                serverState = ServerState.CLOSED;
            } else {
                if (logger.isDebugEnabled())
                    logger.debug("LB received bind request (" + packet + ") from " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId);
                enquireRunnable = new CustomerTimerEnquire(this);
                enquireTimer = monitorExecutor.scheduleAtFixedRate(enquireRunnable, timeoutEnquire, timeoutEnquire, TimeUnit.MILLISECONDS);
                if (connectionTimer != null) {
                    connectionRunnable.cancel();
                    connectionTimer.cancel(false);
                }
                BaseBind bindRequest = (BaseBind) packet;
                config.setName("LoadBalancerSession." + bindRequest.getSystemId() + "." + bindRequest.getSystemType());
                config.setSystemId(bindRequest.getSystemId());
                config.setPassword(bindRequest.getPassword());
                config.setSystemType(bindRequest.getSystemType());
                config.setAddressRange(bindRequest.getAddressRange());
                config.setInterfaceVersion(bindRequest.getInterfaceVersion());
                CustomerTimerResponse responseTimer = new CustomerTimerResponse(this, packet);
                packetMap.put(packet.getSequenceNumber(), new TimerData(packet, monitorExecutor.schedule(responseTimer, timeoutResponse, TimeUnit.MILLISECONDS), responseTimer));
                lbServerListener.bindRequested(sessionId, this, bindRequest);
                serverState = ServerState.BINDING;
            }
            break;
        case BINDING:
            logger.error("LB received packet in incorrect state (BINDING). session ID : " + sessionId + " .packet : " + packet);
            break;
        case BOUND:
            correctPacket = false;
            switch(packet.getCommandId()) {
                case SmppConstants.CMD_ID_UNBIND:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received unbind request from " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId);
                    correctPacket = true;
                    enquireRunnable.cancel();
                    enquireTimer.cancel(false);
                    CustomerTimerResponse responseTimer = new CustomerTimerResponse(this, packet);
                    packetMap.put(packet.getSequenceNumber(), new TimerData(packet, monitorExecutor.schedule(responseTimer, timeoutResponse, TimeUnit.MILLISECONDS), responseTimer));
                    lbServerListener.unbindRequested(sessionId, packet);
                    serverState = ServerState.UNBINDING;
                    break;
                case SmppConstants.CMD_ID_CANCEL_SM:
                case SmppConstants.CMD_ID_DATA_SM:
                case SmppConstants.CMD_ID_QUERY_SM:
                case SmppConstants.CMD_ID_REPLACE_SM:
                case SmppConstants.CMD_ID_SUBMIT_SM:
                case SmppConstants.CMD_ID_SUBMIT_MULTI:
                case SmppConstants.CMD_ID_GENERIC_NACK:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received SMPP request (" + packet + ") from " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId);
                    correctPacket = true;
                    responseTimer = new CustomerTimerResponse(this, packet);
                    packetMap.put(packet.getSequenceNumber(), new TimerData(packet, monitorExecutor.schedule(responseTimer, timeoutResponse, TimeUnit.MILLISECONDS), responseTimer));
                    lbServerListener.smppEntityRequested(sessionId, packet);
                    break;
                case SmppConstants.CMD_ID_ENQUIRE_LINK:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received enquire_link request from " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId);
                    correctPacket = true;
                    EnquireLinkResp resp = new EnquireLinkResp();
                    resp.setSequenceNumber(packet.getSequenceNumber());
                    sendResponse(resp);
                    break;
                case SmppConstants.CMD_ID_DATA_SM_RESP:
                case SmppConstants.CMD_ID_DELIVER_SM_RESP:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received SMPP response (" + packet + ") from " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId);
                    Integer originalSequence = sequenceMap.remove(packet.getSequenceNumber());
                    if (originalSequence != null) {
                        packet.setSequenceNumber(originalSequence);
                        correctPacket = true;
                        lbServerListener.smppEntityResponseFromClient(sessionId, packet);
                    }
                    break;
                case SmppConstants.CMD_ID_ENQUIRE_LINK_RESP:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received enquire_link response from " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId);
                    correctPacket = true;
                    isClientSideOk = true;
                    break;
            }
            if (!correctPacket) {
                sendGenericNack(packet);
            }
            break;
        case REBINDING:
            if (logger.isDebugEnabled())
                logger.debug("LB received packet (" + packet + ") in REBINDING state from " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId + ". LB sent SYSERR responses!");
            if (packet instanceof PduRequest<?>) {
                PduResponse pduResponse = ((PduRequest<?>) packet).createResponse();
                pduResponse.setCommandStatus(SmppConstants.STATUS_SYSERR);
                sendResponse(pduResponse);
            } else if (packet instanceof EnquireLinkResp) {
                isClientSideOk = true;
            }
            break;
        case UNBINDING:
            correctPacket = false;
            if (packet.getCommandId() == SmppConstants.CMD_ID_UNBIND_RESP)
                correctPacket = true;
            if (!correctPacket)
                logger.error("LB received invalid packet in unbinding state from " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId + ". packet : " + packet);
            else {
                if (logger.isDebugEnabled())
                    logger.debug("LB received unbind response from " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId);
                enquireRunnable.cancel();
                enquireTimer.cancel(false);
                Integer originalSequence = sequenceMap.remove(packet.getSequenceNumber());
                if (originalSequence != null) {
                    packet.setSequenceNumber(originalSequence);
                    this.lbServerListener.unbindSuccesfullFromServer(sessionId, packet);
                }
                packetMap.clear();
                sequenceMap.clear();
                channel.close();
                serverState = ServerState.CLOSED;
            }
            break;
        case CLOSED:
            logger.error("LB received packet in incorrect state (CLOSED) from " + channel.getRemoteAddress().toString() + ". session ID : " + sessionId + ". packet : " + packet);
            break;
    }
}

Example 5 with EnquireLinkResp

use of com.cloudhopper.smpp.pdu.EnquireLinkResp in project load-balancer by RestComm.

the class MClientConnectionImpl method packetReceived.

@Override
public void packetReceived(Pdu packet) {
    switch(clientState) {
        case INITIAL:
        case OPEN:
            logger.error("LB received packet in initial or open state. client session ID : " + serverSessionID + ". packet : " + packet);
            break;
        case BINDING:
            Boolean correctPacket = false;
            switch(config.getType()) {
                case TRANSCEIVER:
                    if (packet.getCommandId() == SmppConstants.CMD_ID_BIND_TRANSCEIVER_RESP)
                        correctPacket = true;
                    break;
                case RECEIVER:
                    if (packet.getCommandId() == SmppConstants.CMD_ID_BIND_RECEIVER_RESP)
                        correctPacket = true;
                    break;
                case TRANSMITTER:
                    if (packet.getCommandId() == SmppConstants.CMD_ID_BIND_TRANSMITTER_RESP)
                        correctPacket = true;
                    break;
            }
            if (!correctPacket)
                logger.error("LB received invalid packet in binding state. server session ID : " + serverSessionID + ". packet : " + packet);
            else {
                if (packet.getCommandStatus() == SmppConstants.STATUS_OK) {
                    logger.info("Connection to client : " + config.getHost() + " : " + config.getPort() + " established. client session ID : " + serverSessionID);
                    if (logger.isDebugEnabled())
                        logger.debug("LB received bind response (" + packet + ") from client " + channel.getRemoteAddress().toString() + ". client session ID : " + serverSessionID);
                    enquireRunnable = new ServerTimerEnquire(this);
                    enquireTimer = monitorExecutor.scheduleAtFixedRate(enquireRunnable, timeoutEnquire, timeoutEnquire, TimeUnit.MILLISECONDS);
                    clientState = ClientState.BOUND;
                    userSpace.bindSuccesfull(node, serverSessionID);
                } else {
                    logger.error("Binding to server is unsuccesful.serverSessionId" + serverSessionID + " , error code: " + packet.getCommandStatus());
                    closeChannel();
                    userSpace.bindFailed(serverSessionID, packet);
                    clientState = ClientState.CLOSED;
                }
            }
            break;
        case BOUND:
            correctPacket = false;
            switch(packet.getCommandId()) {
                case SmppConstants.CMD_ID_CANCEL_SM_RESP:
                case SmppConstants.CMD_ID_DATA_SM_RESP:
                case SmppConstants.CMD_ID_QUERY_SM_RESP:
                case SmppConstants.CMD_ID_REPLACE_SM_RESP:
                case SmppConstants.CMD_ID_SUBMIT_SM_RESP:
                case SmppConstants.CMD_ID_SUBMIT_MULTI_RESP:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received SMPP response (" + packet + ") form client " + channel.getRemoteAddress().toString() + ". client session ID: " + serverSessionID);
                    CustomerPacket originalCustomerPacket = sequenceCustomerMap.remove(packet.getSequenceNumber());
                    correctPacket = true;
                    userSpace.sendResponseToClient(originalCustomerPacket, packet);
                    break;
                case SmppConstants.CMD_ID_ENQUIRE_LINK_RESP:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received enquire_link response from client " + channel.getRemoteAddress().toString() + " with client session ID : " + serverSessionID);
                    updateLastTimeSMPPLinkUpdated();
                    correctPacket = true;
                    connectionCheck.cancel();
                    connectionCheckServerSideTimer.cancel(false);
                    userSpace.enquireLinkReceivedFromServer();
                    break;
                case SmppConstants.CMD_ID_DATA_SM:
                case SmppConstants.CMD_ID_DELIVER_SM:
                case SmppConstants.CMD_ID_GENERIC_NACK:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received SMPP request (" + packet + ") from client " + channel.getRemoteAddress().toString() + ". client session ID : " + serverSessionID);
                    lastSequenceNumberSent.getAndIncrement();
                    correctPacket = true;
                    ServerTimerResponse response = new ServerTimerResponse(this, packet);
                    packetMap.put(packet.getSequenceNumber(), new TimerData(packet, monitorExecutor.schedule(response, timeoutResponse, TimeUnit.MILLISECONDS), response));
                    userSpace.sendRequestToClient(packet, serverSessionID);
                    break;
                case SmppConstants.CMD_ID_ENQUIRE_LINK:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received enquire_link request from client " + channel.getRemoteAddress().toString() + ". client session ID : " + serverSessionID);
                    updateLastTimeSMPPLinkUpdated();
                    correctPacket = true;
                    EnquireLinkResp resp = new EnquireLinkResp();
                    resp.setSequenceNumber(packet.getSequenceNumber());
                    sendSmppResponse(resp);
                    break;
                case SmppConstants.CMD_ID_UNBIND:
                    if (logger.isDebugEnabled())
                        logger.debug("LB received unbind request from client " + channel.getRemoteAddress().toString() + ". client session ID : " + serverSessionID);
                    enquireRunnable.cancel();
                    enquireTimer.cancel(false);
                    connectionCheckServerSideTimer.cancel(false);
                    correctPacket = true;
                    response = new ServerTimerResponse(this, packet);
                    packetMap.put(packet.getSequenceNumber(), new TimerData(packet, monitorExecutor.schedule(response, timeoutResponse, TimeUnit.MILLISECONDS), response));
                    userSpace.unbindRequestedFromServer((Unbind) packet, serverSessionID);
                    clientState = ClientState.UNBINDING;
                    break;
            }
            if (!correctPacket) {
                logger.error("LB received invalid packet in bound state. server session ID : " + serverSessionID + ". packet : " + packet);
            }
            break;
        case REBINDING:
            switch(packet.getCommandId()) {
                case SmppConstants.CMD_ID_BIND_RECEIVER_RESP:
                case SmppConstants.CMD_ID_BIND_TRANSCEIVER_RESP:
                case SmppConstants.CMD_ID_BIND_TRANSMITTER_RESP:
                    if (packet.getCommandStatus() == SmppConstants.STATUS_OK) {
                        if (logger.isDebugEnabled())
                            logger.debug("Connection reconnected to client " + channel.getRemoteAddress().toString() + ". client session ID : " + serverSessionID);
                        updateLastTimeSMPPLinkUpdated();
                        connectionCheckServerSideTimer = monitorExecutor.scheduleAtFixedRate(connectionCheck, timeoutConnection, timeoutConnection, TimeUnit.MILLISECONDS);
                        if (enquireTimer != null) {
                            enquireRunnable.cancel();
                            enquireTimer.cancel(false);
                        }
                        enquireRunnable = new ServerTimerEnquire(this);
                        enquireTimer = monitorExecutor.scheduleAtFixedRate(enquireRunnable, timeoutEnquire, timeoutEnquire, TimeUnit.MILLISECONDS);
                        userSpace.reconnectSuccesful(serverSessionID, this);
                        clientState = ClientState.BOUND;
                    } else {
                        if (logger.isDebugEnabled())
                            logger.debug("Reconnection to client unsuccessful. client session ID : " + serverSessionID + ". LB will disconnect all servers!");
                        userSpace.unbindRequestedFromServer(new Unbind(), serverSessionID);
                    }
            }
            break;
        case UNBINDING:
            correctPacket = false;
            if (packet.getCommandId() == SmppConstants.CMD_ID_UNBIND_RESP)
                correctPacket = true;
            if (!correctPacket)
                logger.error("LB received invalid packet in unbinding state. client session ID : " + serverSessionID + ". packet : " + packet);
            else {
                if (logger.isDebugEnabled())
                    logger.debug("LB received unbind response form client " + channel.getRemoteAddress().toString() + ". client sessionId : " + serverSessionID);
                sequenceMap.clear();
                packetMap.clear();
                closeChannel();
                clientState = ClientState.CLOSED;
            }
            break;
        case CLOSED:
            logger.error("LB received packet in closed state. client session ID : " + serverSessionID + ". packet : " + packet);
            break;
    }
}