Examples with PDUException org.smpp.pdu.PDUException used on opensource projects

Example 1 with PDUException

use of org.smpp.pdu.PDUException in project opensmpp by OpenSmpp.

the class Receiver method receiveAsync.

/**
 * This method receives a PDU from connection and stores it into
 * <code>pduQueue</code>. It's called from the <code>ReceiverBase</code>'s
 * p<code>process</code> method which is called in loop from
 * <code>ProcessingThread</code>'s <code>run</code> method.
 * <p>
 * If an exception occurs during receiving, depending on type
 * of the exception this method either just reports the exception to
 * debug & event objects or stops processing to indicate
 * that it isn't able to process the exception. The function
 * <code>setTermException</code> is then called with the caught exception.
 *
 * @see ReceiverBase#run()
 */
protected void receiveAsync() {
    PDU pdu = null;
    try {
        debug.write(DRXTXD2, "Receiver.receiveAsync() going to receive pdu.");
        pdu = receivePDUFromConnection(connection, unprocessed);
    // we must catch every exception as this is thread running
    // on the background and we don't want the thread to be terminated
    } catch (InvalidPDUException e) {
        // thrown when enough data were received but further parsing
        // required more than indicated by CommandLength, i.e. pdu is
        // corrupted or further parsing didn't find terminating zero
        // of a c-string i.e. pdu is corrupted
        // must send generic nack anyway
        event.write(e, "Receiver.receiveAsync(): received PDU is invalid.");
        PDU expdu = e.getPDU();
        int seqNr = expdu == null ? 0 : expdu.getSequenceNumber();
        if (automaticNack) {
            sendGenericNack(Data.ESME_RINVMSGLEN, seqNr);
        } else {
            pdu = new GenericNack(Data.ESME_RINVMSGLEN, seqNr);
        }
    } catch (UnknownCommandIdException e) {
        // if received unknown pdu, we must send generic nack
        event.write(e, "Receiver.receiveAsync(): Unknown command id.");
        if (automaticNack) {
            sendGenericNack(Data.ESME_RINVCMDID, e.getSequenceNumber());
        } else {
            pdu = new GenericNack(Data.ESME_RINVCMDID, e.getSequenceNumber());
        }
    } catch (TimeoutException e) {
        // too long had unprocessed data
        debug.write(DRXTX, "Receiver.receiveAsync() too long had an uncomplete message.");
    } catch (PDUException e) {
        // something wrong with the PDU
        event.write(e, "Receiver.receiveAsync()");
        PDU expdu = e.getPDU();
        int seqNr = expdu == null ? 0 : expdu.getSequenceNumber();
        if (automaticNack) {
            sendGenericNack(e.getErrorCode(), seqNr);
        } else {
            pdu = new GenericNack(e.getErrorCode(), seqNr);
        }
    } catch (Exception e) {
        // don't know what happen, let's end the show
        event.write(e, "Receiver.receiveAsync()");
        stopProcessing(e);
    }
    if (pdu != null) {
        debug.write(DRXTX, "Receiver.receiveAsync(): PDU received, processing " + pdu.debugString());
        if (asynchronous) {
            process(pdu);
        } else {
            enqueue(pdu);
        }
    }
}

Example 2 with PDUException

use of org.smpp.pdu.PDUException in project opensmpp by OpenSmpp.

the class ReceiverBase method tryGetUnprocessedPDU.

/**
 * Tries to create a PDU from the buffer provided.
 * Returns the PDU if successfull or null if not or an exception
 * if the PDU is incorrect.
 */
private final PDU tryGetUnprocessedPDU(Unprocessed unprocessed) throws UnknownCommandIdException, PDUException {
    debug.write(DRXTX, "trying to create pdu from unprocessed buffer");
    PDU pdu = null;
    ByteBuffer unprocBuffer = unprocessed.getUnprocessed();
    try {
        pdu = PDU.createPDU(unprocBuffer);
        unprocessed.check();
        // Reset counter after successful createPDU (as per bug #2138444):
        messageIncompleteRetryCount = 0;
    } catch (HeaderIncompleteException e) {
        // the header wasn't received completly, we will try to
        // receive the rest next time
        debug.write(DRXTXD, "incomplete message header, will wait for the rest.");
        // as it's incomplete - wait for new data
        unprocessed.setHasUnprocessed(false);
        unprocessed.setExpected(Data.PDU_HEADER_SIZE);
    } catch (MessageIncompleteException e) {
        // busy servers and PDUs split across TCP packets.
        if (messageIncompleteRetryCount > 5) {
            messageIncompleteRetryCount = 0;
            event.write("Giving up on incomplete messages - probably garbage in unprocessed buffer. Flushing unprocessed buffer.");
            unprocessed.reset();
        }
        // the message wasn't received completly, less bytes than command
        // length has been received, will try to receive the rest next time
        debug.write(DRXTXD, "incomplete message, will wait for the rest.");
        // as it's incomplete - wait for new data
        unprocessed.setHasUnprocessed(false);
        unprocessed.setExpected(Data.PDU_HEADER_SIZE);
        messageIncompleteRetryCount++;
    } catch (UnknownCommandIdException e) {
        // message with invalid id was received, should send generic_nack
        debug.write(DRXTX, "unknown pdu, might remove from unprocessed buffer. CommandId=" + e.getCommandId());
        if (e.getCommandLength() <= unprocBuffer.length()) {
            // have already enough to remove
            try {
                unprocBuffer.removeBytes(e.getCommandLength());
            } catch (NotEnoughDataInByteBufferException e1) {
                // can't happen, we've checked it above
                throw new Error("Not enough data in buffer even if previously checked that there was enough.");
            }
            unprocessed.check();
            // caller will decide what to do
            throw e;
        }
        // discarded via an UnknownCommandIdException again).
        throw e;
    } catch (PDUException e) {
        // paolo@bulksms.com: safer to catch all other PDU exceptions and force
        // force a check() here - some exception in parsing should not be allowed
        // to leave ghost data in the Unprocessed buffer (even though this is now
        // less likely after improvements to PDU.createPDU()):
        unprocessed.check();
        throw e;
    }
    /* paolo@bulksms.com: concerned that this is too broad, and will
		   stop useful exceptions from being passed back up the call stack,
			so disabling for now:
		} catch (Exception e) {
			debug.write(DRXTX, "Exception catched: " + e.toString());
			StringWriter stringWriter = new StringWriter();
			PrintWriter printWriter = new PrintWriter(stringWriter);
			e.printStackTrace(printWriter);
			debug.write(DRXTX, stringWriter.toString());
		}
		*/
    if (pdu != null) {
        debug.write(DRXTX, "received complete pdu" + pdu.debugString());
        debug.write(DRXTX, "there is " + unprocBuffer.length() + " bytes left in unprocessed buffer");
    }
    // unprocessed.check();
    return pdu;
}

Example 3 with PDUException

use of org.smpp.pdu.PDUException in project opensmpp by OpenSmpp.

the class Simulator method sendMessage.

/**
 * Permits data to be sent to a specific client.
 * With the id of the client set by the user, the method <code>sendMessage</code>
 * gets back the specific reference to the client's <code>PDUProcessor</code>.
 * With this reference you are able to send data to the client.
 */
protected void sendMessage() throws IOException {
    if (smscListener != null) {
        int procCount = processors.count();
        if (procCount > 0) {
            String client;
            SimulatorPDUProcessor proc;
            listClients();
            if (procCount > 1) {
                System.out.print("Type name of the destination> ");
                client = keyboard.readLine();
            } else {
                proc = (SimulatorPDUProcessor) processors.get(0);
                client = proc.getSystemId();
            }
            for (int i = 0; i < procCount; i++) {
                proc = (SimulatorPDUProcessor) processors.get(i);
                if (proc.getSystemId().equals(client)) {
                    if (proc.isActive()) {
                        System.out.print("Type the message> ");
                        String message = keyboard.readLine();
                        DeliverSM request = new DeliverSM();
                        try {
                            request.setShortMessage(message);
                            proc.serverRequest(request);
                            System.out.println("Message sent.");
                        } catch (WrongLengthOfStringException e) {
                            System.out.println("Message sending failed");
                            event.write(e, "");
                        } catch (IOException ioe) {
                        } catch (PDUException pe) {
                        }
                    } else {
                        System.out.println("This session is inactive.");
                    }
                }
            }
        } else {
            System.out.println("No client connected.");
        }
    } else {
        System.out.println("You must start listener first.");
    }
}