Examples of org.snmp4j.PDU

org.snmp4j.PDU
The PDU class represents a SNMP protocol data unit. The PDU version supported by the BER decoding and encoding methods of this class is v2.
The default PDU type is GET. @author Frank Fock @version 1.1 @see PDUv1 @see ScopedPDU

     */
    public void processPdu(CommandResponderEvent cre) {


        if (log.isDebugEnabled())
            log.debug("recv: " + cre);
        PDU pdu = cre.getPDU();
        String sourceAddr;
        Address addr = cre.getPeerAddress();
        if (addr instanceof IpAddress) {
            sourceAddr = ((IpAddress) addr).getInetAddress().toString();
            if (sourceAddr.startsWith("/"))
                sourceAddr = sourceAddr.substring(1);
        } else {
            // Don't use addr.toString() as this would contain the port and generate too many
            // EventSources
            sourceAddr = "snmp-agent";
        }
        if (pdu != null) {
            StringBuffer payload = new StringBuffer();
            // SNMP v1
            if (pdu instanceof PDUv1) {
                PDUv1 v1pdu = (PDUv1) pdu;
                long timeTicks = v1pdu.getTimestamp();
                payload.append("Traptype (generic, specific): ");
                payload.append(v1pdu.getGenericTrap()).append(", ").append(v1pdu.getSpecificTrap()).append("\n");
                payload.append("Timestamp: " + new TimeTicks(timeTicks).toString());
                payload.append("\n");
            }


            SnmpTrapdComponent.trapCount++;
            EventSeverity severity = EventSeverity.INFO;


            Vector<VariableBinding> vbs = pdu.getVariableBindings();
            for (VariableBinding vb : vbs) {
                OID oid = vb.getOid();
                Variable var = vb.getVariable();
                int syntax = vb.getSyntax();

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    }


    @NotNull
    public List<SNMPValue> getBulk(String mibName) throws SNMPException {
        List<SNMPValue> values = new ArrayList<SNMPValue>();
        PDU request = createPDU(mibName, PDU.GETBULK);
        request.setMaxRepetitions(GETBULK_MAX_REPETITIONS);
        request.setNonRepeaters(GETBULK_NON_REPEATERS);
        PDU response = sendRequest(request, mibName);
        Vector<VariableBinding> varBindings = response.getVariableBindings();
        for (VariableBinding varBinding : varBindings) {
            values.add(new SNMPValue(varBinding));
        }


        return values;

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        return values;
    }


    public boolean ping() {
        PDU response;
        try {
            PDU pdu = createPDU(PING_OID, PDU.GETNEXT);
            response = sendRequest(pdu, PING_MIB_NAME);
        } catch (SNMPException e) {
            if (e instanceof SNMPTimeoutException) {
                long timeoutMillis = target.getTimeout() * (target.getRetries() + 1);
                log.debug("Timed out after " + timeoutMillis + " while pinging " + this.version + " agent at " + this

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    public String toString() {
        return target.getAddress() + "/" + this.target.getCommunity();
    }


    protected PDU createPDU(String mibName, int type) throws MIBLookupException {
        PDU pdu = new DefaultPDUFactory().createPDU(this.target);
        pdu.setType(type);
        OID oid = SNMPClient.getMibOID(mibName);
        pdu.add(new VariableBinding(oid));
        return pdu;
    }

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        return session;
    }


    private SNMPValue getValue(String mibName, int pduType) throws SNMPException {
        PDU request = createPDU(mibName, pduType);
        PDU response = sendRequest(request, mibName);
        return new SNMPValue(response.get(GETBULK_NON_REPEATERS));
    }

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        if (responseEvent == null) {
            throw new SNMPException("No response to " + requestType + " request for [" + mibName + "].");
        }


        PDU response = responseEvent.getResponse();
        if (response == null) {
            throw new SNMPTimeoutException(requestType + " request for [" + mibName + "] timed out.");
        }


        return response;

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        super.doStop();
    }


    public void processPdu(CommandResponderEvent event) {
        PDU pdu = event.getPDU();
        // check PDU not null
        if (pdu != null) {
            processPDU(pdu);
        } else {
            LOG.debug("Received invalid trap PDU: " + pdu);

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        target.setRetries(this.endpoint.getRetries());
        target.setTimeout(this.endpoint.getTimeout());
        target.setVersion(this.endpoint.getSnmpVersion());


        // creating PDU
        this.pdu = new PDU();


        // listen to the transport
        if (LOG.isDebugEnabled()) {
            LOG.debug("Starting OID poller on " + endpoint.getAddress() + " using " + endpoint.getProtocol() + " protocol");
        }

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            // ignore null requests/responses
            LOG.debug("Received invalid SNMP event. Request: " + event.getRequest() + " / Response: " + event.getResponse());
            return;
        }
        
        PDU pdu = event.getResponse();
        processPDU(pdu);
    }

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    securityName.decodeBER(wholeMsg);
    securityLevel.setValue(SecurityLevel.NOAUTH_NOPRIV);
    securityModel.setValue(SecurityModel.SECURITY_MODEL_SNMPv1);
    messageProcessingModel.setValue(ID);


    PDU v1PDU = incomingPDUFactory.createPDU(null);
    pdu.setPdu(v1PDU);
    v1PDU.decodeBER(wholeMsg);


    BER.checkSequenceLength(length, (int)wholeMsg.getPosition() - startPos,
                            v1PDU);


    sendPduHandle.setTransactionID(v1PDU.getRequestID().getValue());


    // create state reference
    StateReference stateRef =
        new StateReference(sendPduHandle,
                           transportAddress,

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