public byte[] encodeNextMessageToBeSent(CDAPMessage cdapMessage) throws CDAPException {
CDAPMessageValidator.validate(cdapMessage);
switch (cdapMessage.getOpCode()) {
case M_CONNECT:
connectionStateMachine.checkConnect();
break;
case M_CONNECT_R:
connectionStateMachine.checkConnectResponse();
break;
case M_RELEASE:
connectionStateMachine.checkRelease();
break;
case M_RELEASE_R:
connectionStateMachine.checkReleaseResponse();
break;
case M_CREATE:
checkIsConnected();
break;
case M_CREATE_R:
checkIsConnected();
break;
case M_DELETE:
checkIsConnected();
break;
case M_DELETE_R:
checkIsConnected();
break;
case M_START:
checkIsConnected();
break;
case M_START_R:
checkIsConnected();
break;
case M_STOP:
checkIsConnected();
break;
case M_STOP_R:
checkIsConnected();
break;
case M_WRITE:
checkIsConnected();
break;
case M_WRITE_R:
checkIsConnected();
break;
case M_READ:
checkIsConnected();
break;
case M_READ_R:
checkIsConnected();
break;
case M_CANCELREAD:
checkIsConnected();
;
break;
case M_CANCELREAD_R:
checkIsConnected();
break;
default:
throw new CDAPException(
"Unrecognized operation code: " + cdapMessage.getOpCode().toString());
}
return serializeMessage(cdapMessage);
}
private void checkIsConnected() throws CDAPException {
if (!connectionStateMachine.isConnected()) {
throw new CDAPException(
"Cannot send a message " + "because the CDAP session is not in CONNECTED state");
}
}
public boolean isConnected() {
return connectionStateMachine.isConnected();
}
private CDAPMessage messageSentOrReceived(CDAPMessage cdapMessage, boolean sent)
throws CDAPException {
switch (cdapMessage.getOpCode()) {
case M_CONNECT:
connectionStateMachine.connectSentOrReceived(cdapMessage, sent);
populateSessionDescriptor(cdapMessage, sent);
break;
case M_CONNECT_R:
connectionStateMachine.connectResponseSentOrReceived(cdapMessage, sent);
break;
case M_RELEASE:
connectionStateMachine.releaseSentOrReceived(cdapMessage, sent);
break;
case M_RELEASE_R:
connectionStateMachine.releaseResponseSentOrReceived(cdapMessage, sent);
emptySessionDescriptor();
break;
case M_CREATE:
requestMessageSentOrReceived(cdapMessage, Opcode.M_CREATE, sent);
break;
case M_CREATE_R:
responseMessageSentOrReceived(cdapMessage, Opcode.M_CREATE, sent);
break;
case M_DELETE:
requestMessageSentOrReceived(cdapMessage, Opcode.M_DELETE, sent);
break;
case M_DELETE_R:
responseMessageSentOrReceived(cdapMessage, Opcode.M_DELETE, sent);
break;
case M_START:
requestMessageSentOrReceived(cdapMessage, Opcode.M_START, sent);
break;
case M_START_R:
responseMessageSentOrReceived(cdapMessage, Opcode.M_START, sent);
break;
case M_STOP:
requestMessageSentOrReceived(cdapMessage, Opcode.M_STOP, sent);
break;
case M_STOP_R:
responseMessageSentOrReceived(cdapMessage, Opcode.M_STOP, sent);
break;
case M_WRITE:
requestMessageSentOrReceived(cdapMessage, Opcode.M_WRITE, sent);
break;
case M_WRITE_R:
responseMessageSentOrReceived(cdapMessage, Opcode.M_WRITE, sent);
break;
case M_READ:
requestMessageSentOrReceived(cdapMessage, Opcode.M_READ, sent);
break;
case M_READ_R:
responseMessageSentOrReceived(cdapMessage, Opcode.M_READ, sent);
break;
case M_CANCELREAD:
break;
case M_CANCELREAD_R:
cancelReadResponseMessageSentOrReceived(cdapMessage, sent);
break;
default:
throw new CDAPException(
"Unrecognized operation code: " + cdapMessage.getOpCode().toString());
}
CDAPMessageValidator.validate(cdapMessage);
freeOrReserveInvokeId(cdapMessage);
return cdapMessage;
}
