/** * To generate a logout message * * @param otherLogout if not null, the logout message that is causing a logout to be sent * @param text */ private void generateLogout(Message otherLogout, String text, SessionStatus sessionStatus) { final Message logout = messageFactory.create(sessionID.getBeginString(), MsgType.LOGOUT); initializeHeader(logout.getHeader()); if (text != null && !"".equals(text)) { logout.setString(Text.FIELD, text); } if (sessionStatus != null) { logout.setInt(SessionStatus.FIELD, sessionStatus.getValue()); } if (otherLogout != null && enableLastMsgSeqNumProcessed) { try { logout.getHeader().setInt(LastMsgSeqNumProcessed.FIELD, otherLogout.getHeader().getInt(MsgSeqNum.FIELD)); } catch (final FieldNotFound e) { // should not happen as MsgSeqNum must be present getLog().onErrorEvent("Received logout without MsgSeqNum"); } } sendRaw(logout, 0); state.setLogoutSent(true); }
/** * To generate a logout message * * @param otherLogout if not null, the logout message that is causing a logout to be sent * @param text */ private void generateLogout(Message otherLogout, String text, SessionStatus sessionStatus) { final Message logout = messageFactory.create(sessionID.getBeginString(), MsgType.LOGOUT); initializeHeader(logout.getHeader()); if (text != null && !"".equals(text)) { logout.setString(Text.FIELD, text); } if (sessionStatus != null) { logout.setInt(SessionStatus.FIELD, sessionStatus.getValue()); } if (otherLogout != null && enableLastMsgSeqNumProcessed) { try { logout.getHeader().setInt(LastMsgSeqNumProcessed.FIELD, otherLogout.getHeader().getInt(MsgSeqNum.FIELD)); } catch (final FieldNotFound e) { // should not happen as MsgSeqNum must be present getLog().onErrorEvent("Received logout without MsgSeqNum"); } } sendRaw(logout, 0); state.setLogoutSent(true); }
private void nextLogout(Message logout) throws IOException, RejectLogon, FieldNotFound, IncorrectDataFormat, IncorrectTagValue, UnsupportedMessageType { if (!verify(logout, false, false)) { return; } state.setLogoutReceived(true); String msg; if (!state.isLogoutSent()) { msg = "Received logout request"; if (logout.isSetField(Text.FIELD)) { msg += ": " + logout.getString(Text.FIELD); } getLog().onEvent(msg); generateLogout(logout); getLog().onEvent("Sent logout response"); } else { msg = "Received logout response"; getLog().onEvent(msg); } // QFJ-750 if (getExpectedTargetNum() == logout.getHeader().getInt(MsgSeqNum.FIELD)) { state.incrNextTargetMsgSeqNum(); } if (resetOnLogout) { resetState(); } disconnect(msg, false); }
/** * @param receivedMessage if not null, it is the message received and upon which the resend request is generated * @param beginSeqNo * @param endSeqNo * @throws FieldNotFound */ private void generateSequenceReset(Message receivedMessage, int beginSeqNo, int endSeqNo) throws FieldNotFound { final Message sequenceReset = messageFactory.create(sessionID.getBeginString(), MsgType.SEQUENCE_RESET); final Header header = sequenceReset.getHeader(); header.setBoolean(PossDupFlag.FIELD, true); initializeHeader(header); header.setUtcTimeStamp(OrigSendingTime.FIELD, header.getUtcTimeStamp(SendingTime.FIELD), getTimestampPrecision()); header.setInt(MsgSeqNum.FIELD, beginSeqNo); sequenceReset.setInt(NewSeqNo.FIELD, endSeqNo); sequenceReset.setBoolean(GapFillFlag.FIELD, true); if (receivedMessage != null && enableLastMsgSeqNumProcessed) { try { sequenceReset.getHeader().setInt(LastMsgSeqNumProcessed.FIELD, receivedMessage.getHeader().getInt(MsgSeqNum.FIELD)); } catch (final FieldNotFound e) { // should not happen as MsgSeqNum must be present getLog().onErrorEvent("Received message without MsgSeqNum " + getMessageToLog(receivedMessage)); } } sendRaw(sequenceReset, beginSeqNo); getLog().onEvent("Sent SequenceReset TO: " + endSeqNo); }
private void nextLogout(Message logout) throws IOException, RejectLogon, FieldNotFound, IncorrectDataFormat, IncorrectTagValue, UnsupportedMessageType { if (!verify(logout, false, false)) { return; } state.setLogoutReceived(true); String msg; if (!state.isLogoutSent()) { msg = "Received logout request"; if (logout.isSetField(Text.FIELD)) { msg += ": " + logout.getString(Text.FIELD); } getLog().onEvent(msg); generateLogout(logout); getLog().onEvent("Sent logout response"); } else { msg = "Received logout response"; getLog().onEvent(msg); } // QFJ-750 if (getExpectedTargetNum() == logout.getHeader().getInt(MsgSeqNum.FIELD)) { state.incrNextTargetMsgSeqNum(); } if (resetOnLogout) { resetState(); } disconnect(msg, false); }
private void nextResendRequest(Message resendRequest) throws IOException, RejectLogon, FieldNotFound, IncorrectDataFormat, IncorrectTagValue, UnsupportedMessageType, InvalidMessage { // QFJ-653: Check if seqnums are too low. // QFJ-673: Do not check if seqnums are too high in verify() since in case of a seqnum mismatch this will // enqueue the ResendRequest for later processing. This might lead to a deadlock situation in // which the counterparty waits for our messages to be resent and we are also waiting for our // ResendRequest to be satisfied in order to process the queued ResendRequest of the counterparty. // Instead, send out the requested messages and afterwards enqueue the ResendRequest in order to // later increase the target seqnum in method nextQueued(int). if (!verify(resendRequest, false, validateSequenceNumbers)) { return; } final int msgSeqNum = resendRequest.getHeader().getInt(MsgSeqNum.FIELD); if (validateSequenceNumbers && isTargetTooHigh(msgSeqNum)) { enqueueMessage(resendRequest, msgSeqNum); } final int beginSeqNo = resendRequest.getInt(BeginSeqNo.FIELD); final int endSeqNo = resendRequest.getInt(EndSeqNo.FIELD); getLog().onEvent( "Received ResendRequest FROM: " + beginSeqNo + " TO: " + formatEndSeqNum(endSeqNo)); manageGapFill(resendRequest, beginSeqNo, endSeqNo); }
private void nextResendRequest(Message resendRequest) throws IOException, RejectLogon, FieldNotFound, IncorrectDataFormat, IncorrectTagValue, UnsupportedMessageType, InvalidMessage { // QFJ-653: Check if seqnums are too low. // QFJ-673: Do not check if seqnums are too high in verify() since in case of a seqnum mismatch this will // enqueue the ResendRequest for later processing. This might lead to a deadlock situation in // which the counterparty waits for our messages to be resent and we are also waiting for our // ResendRequest to be satisfied in order to process the queued ResendRequest of the counterparty. // Instead, send out the requested messages and afterwards enqueue the ResendRequest in order to // later increase the target seqnum in method nextQueued(int). if (!verify(resendRequest, false, validateSequenceNumbers)) { return; } final int msgSeqNum = resendRequest.getHeader().getInt(MsgSeqNum.FIELD); if (validateSequenceNumbers && isTargetTooHigh(msgSeqNum)) { enqueueMessage(resendRequest, msgSeqNum); } final int beginSeqNo = resendRequest.getInt(BeginSeqNo.FIELD); final int endSeqNo = resendRequest.getInt(EndSeqNo.FIELD); getLog().onEvent( "Received ResendRequest FROM: " + beginSeqNo + " TO: " + formatEndSeqNum(endSeqNo)); manageGapFill(resendRequest, beginSeqNo, endSeqNo); }
private void nextResendRequest(Message resendRequest) throws IOException, RejectLogon, FieldNotFound, IncorrectDataFormat, IncorrectTagValue, UnsupportedMessageType, InvalidMessage { // QFJ-653: Check if seqnums are too low. // QFJ-673: Do not check if seqnums are too high in verify() since in case of a seqnum mismatch this will // enqueue the ResendRequest for later processing. This might lead to a deadlock situation in // which the counterparty waits for our messages to be resent and we are also waiting for our // ResendRequest to be satisfied in order to process the queued ResendRequest of the counterparty. // Instead, send out the requested messages and afterwards enqueue the ResendRequest in order to // later increase the target seqnum in method nextQueued(int). if (!verify(resendRequest, false, validateSequenceNumbers)) { return; } final int msgSeqNum = resendRequest.getHeader().getInt(MsgSeqNum.FIELD); if (validateSequenceNumbers && isTargetTooHigh(msgSeqNum)) { enqueueMessage(resendRequest, msgSeqNum); } final int beginSeqNo = resendRequest.getInt(BeginSeqNo.FIELD); final int endSeqNo = resendRequest.getInt(EndSeqNo.FIELD); getLog().onEvent( "Received ResendRequest FROM: " + beginSeqNo + " TO: " + formatEndSeqNum(endSeqNo)); manageGapFill(resendRequest, beginSeqNo, endSeqNo); }
private void doTargetTooHigh(Message msg) throws FieldNotFound, IOException, InvalidMessage { final Message.Header header = msg.getHeader(); final String beginString = header.getString(BeginString.FIELD); final int msgSeqNum = header.getInt(MsgSeqNum.FIELD); getLog().onEvent( "MsgSeqNum too high, expecting " + getExpectedTargetNum() + " but received " + msgSeqNum + ": " + msg); enqueueMessage(msg, msgSeqNum); if (state.isResendRequested()) { final ResendRange range = state.getResendRange(); if (!redundantResentRequestsAllowed && msgSeqNum >= range.getBeginSeqNo()) { getLog().onEvent( "Already sent ResendRequest FROM: " + range.getBeginSeqNo() + " TO: " + range.getEndSeqNo() + ". Not sending another."); return; } } generateResendRequest(beginString, msgSeqNum); }
private void doTargetTooHigh(Message msg) throws FieldNotFound, IOException, InvalidMessage { final Message.Header header = msg.getHeader(); final String beginString = header.getString(BeginString.FIELD); final int msgSeqNum = header.getInt(MsgSeqNum.FIELD); getLog().onEvent( "MsgSeqNum too high, expecting " + getExpectedTargetNum() + " but received " + msgSeqNum + ": " + msg); enqueueMessage(msg, msgSeqNum); if (state.isResendRequested()) { final ResendRange range = state.getResendRange(); if (!redundantResentRequestsAllowed && msgSeqNum >= range.getBeginSeqNo()) { getLog().onEvent( "Already sent ResendRequest FROM: " + range.getBeginSeqNo() + " TO: " + range.getEndSeqNo() + ". Not sending another."); return; } } generateResendRequest(beginString, msgSeqNum); }
private void doTargetTooHigh(Message msg) throws FieldNotFound, IOException, InvalidMessage { final Message.Header header = msg.getHeader(); final String beginString = header.getString(BeginString.FIELD); final int msgSeqNum = header.getInt(MsgSeqNum.FIELD); getLog().onEvent( "MsgSeqNum too high, expecting " + getExpectedTargetNum() + " but received " + msgSeqNum + ": " + msg); enqueueMessage(msg, msgSeqNum); if (state.isResendRequested()) { final ResendRange range = state.getResendRange(); if (!redundantResentRequestsAllowed && msgSeqNum >= range.getBeginSeqNo()) { getLog().onEvent( "Already sent ResendRequest FROM: " + range.getBeginSeqNo() + " TO: " + range.getEndSeqNo() + ". Not sending another."); return; } } generateResendRequest(beginString, msgSeqNum); }
private void generateHeartbeat(Message testRequest) throws FieldNotFound { final Message heartbeat = messageFactory.create(sessionID.getBeginString(), MsgType.HEARTBEAT); initializeHeader(heartbeat.getHeader()); if (testRequest.isSetField(TestReqID.FIELD)) { heartbeat.setString(TestReqID.FIELD, testRequest.getString(TestReqID.FIELD)); } if (enableLastMsgSeqNumProcessed) { heartbeat.getHeader().setInt(LastMsgSeqNumProcessed.FIELD, testRequest.getHeader().getInt(MsgSeqNum.FIELD)); } sendRaw(heartbeat, 0); }
private void generateHeartbeat(Message testRequest) throws FieldNotFound { final Message heartbeat = messageFactory.create(sessionID.getBeginString(), MsgType.HEARTBEAT); initializeHeader(heartbeat.getHeader()); if (testRequest.isSetField(TestReqID.FIELD)) { heartbeat.setString(TestReqID.FIELD, testRequest.getString(TestReqID.FIELD)); } if (enableLastMsgSeqNumProcessed) { heartbeat.getHeader().setInt(LastMsgSeqNumProcessed.FIELD, testRequest.getHeader().getInt(MsgSeqNum.FIELD)); } sendRaw(heartbeat, 0); }
private void generateHeartbeat(Message testRequest) throws FieldNotFound { final Message heartbeat = messageFactory.create(sessionID.getBeginString(), MsgType.HEARTBEAT); initializeHeader(heartbeat.getHeader()); if (testRequest.isSetField(TestReqID.FIELD)) { heartbeat.setString(TestReqID.FIELD, testRequest.getString(TestReqID.FIELD)); } if (enableLastMsgSeqNumProcessed) { heartbeat.getHeader().setInt(LastMsgSeqNumProcessed.FIELD, testRequest.getHeader().getInt(MsgSeqNum.FIELD)); } sendRaw(heartbeat, 0); }
private void nextReject(Message reject) throws FieldNotFound, RejectLogon, IncorrectDataFormat, IncorrectTagValue, UnsupportedMessageType, IOException, InvalidMessage { if (!verify(reject, false, validateSequenceNumbers)) { return; } if (getExpectedTargetNum() == reject.getHeader().getInt(MsgSeqNum.FIELD)) { state.incrNextTargetMsgSeqNum(); } nextQueued(); }
private boolean doTargetTooLow(Message msg) throws FieldNotFound, IOException { if (!isPossibleDuplicate(msg)) { final int msgSeqNum = msg.getHeader().getInt(MsgSeqNum.FIELD); final String text = "MsgSeqNum too low, expecting " + getExpectedTargetNum() + " but received " + msgSeqNum; generateLogout(text); throw new SessionException(text); } return validatePossDup(msg); }
private boolean doTargetTooLow(Message msg) throws FieldNotFound, IOException { if (!isPossibleDuplicate(msg)) { final int msgSeqNum = msg.getHeader().getInt(MsgSeqNum.FIELD); final String text = "MsgSeqNum too low, expecting " + getExpectedTargetNum() + " but received " + msgSeqNum; generateLogout(text); throw new SessionException(text); } return validatePossDup(msg); }
private void nextReject(Message reject) throws FieldNotFound, RejectLogon, IncorrectDataFormat, IncorrectTagValue, UnsupportedMessageType, IOException, InvalidMessage { if (!verify(reject, false, validateSequenceNumbers)) { return; } if (getExpectedTargetNum() == reject.getHeader().getInt(MsgSeqNum.FIELD)) { state.incrNextTargetMsgSeqNum(); } nextQueued(); }
private boolean doTargetTooLow(Message msg) throws FieldNotFound, IOException { if (!isPossibleDuplicate(msg)) { final int msgSeqNum = msg.getHeader().getInt(MsgSeqNum.FIELD); final String text = "MsgSeqNum too low, expecting " + getExpectedTargetNum() + " but received " + msgSeqNum; generateLogout(text); throw new SessionException(text); } return validatePossDup(msg); }
private void nextReject(Message reject) throws FieldNotFound, RejectLogon, IncorrectDataFormat, IncorrectTagValue, UnsupportedMessageType, IOException, InvalidMessage { if (!verify(reject, false, validateSequenceNumbers)) { return; } if (getExpectedTargetNum() == reject.getHeader().getInt(MsgSeqNum.FIELD)) { state.incrNextTargetMsgSeqNum(); } nextQueued(); }