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

    return null;
  }
  private Exception processAll(Snmp snmp, Target target, String context_engine, String context_name, 
                               Iterator it, HashMap oid_hashmap, ResmonResult rr) {
    try {
      PDU request = createPDU(target, context_engine, context_name);
      PDU response = null;
      while (it.hasNext()) {
        Map.Entry pairs = (Map.Entry)it.next();
        /* We may have bad values... we want to just fail for this entry, not kick out of the
           check altogether */
        try {

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  }
  private Exception processIndividually(Snmp snmp, Target target, String context_engine, String context_name,
                               Iterator it, HashMap oid_hashmap, ResmonResult rr) {
    try {
      while (it.hasNext()) {
        PDU request = createPDU(target, context_engine, context_name);
        PDU response = null;
        Map.Entry pairs = (Map.Entry)it.next();
        /* If we have a bad value, just continue, since each request can only contain one OID */
        try {
          request.add(new VariableBinding(new OID(pairs.getValue().toString().substring(1))));
        }

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    target.setRetries(0);
    target.setTimeout(timeout/2);
    return target;
  }
  private PDU createPDU(Target target, String contextEngine, String contextName) {
    PDU request;
    if (target.getVersion() == SnmpConstants.version3) {
      request = new ScopedPDU();
      ScopedPDU scopedPDU = (ScopedPDU)request;
      if (contextEngine != null) {
        scopedPDU.setContextEngineID(OctetString.fromHexStringPairs(contextEngine));
      }
      if (contextName != null) {
        scopedPDU.setContextName(new OctetString(contextName));
      }
    }
    else {
      request = new PDU();
    }
    request.setType(PDU.GET);
    return request;
  }

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            throw new CloudRuntimeException(" Error in sending SNMP Trap, " + e.getMessage());
        }
    }


    private PDU createPDU(SnmpTrapInfo snmpTrapInfo) {
        PDU trap = new PDU();
        trap.setType(PDU.TRAP);


        int alertType = snmpTrapInfo.getAlertType() + 1;
        if (alertType > 0) {
            trap.add(new VariableBinding(SnmpConstants.snmpTrapOID, getOID(CsSnmpConstants.TRAPS_PREFIX + alertType)));
            if (snmpTrapInfo.getDataCenterId() != 0) {
                trap.add(new VariableBinding(getOID(CsSnmpConstants.DATA_CENTER_ID),
                    new UnsignedInteger32(snmpTrapInfo.getDataCenterId())));
            }


            if (snmpTrapInfo.getPodId() != 0) {
                trap.add(new VariableBinding(getOID(CsSnmpConstants.POD_ID), new UnsignedInteger32(snmpTrapInfo
                    .getPodId())));
            }


            if (snmpTrapInfo.getClusterId() != 0) {
                trap.add(new VariableBinding(getOID(CsSnmpConstants.CLUSTER_ID), new UnsignedInteger32(snmpTrapInfo
                    .getClusterId())));
            }


            if (snmpTrapInfo.getMessage() != null) {
                trap.add(new VariableBinding(getOID(CsSnmpConstants.MESSAGE), new OctetString(snmpTrapInfo.getMessage
                    ())));
            } else {
                throw new CloudRuntimeException(" What is the use of alert without message ");
            }


            if (snmpTrapInfo.getGenerationTime() != null) {
                trap.add(new VariableBinding(getOID(CsSnmpConstants.GENERATION_TIME),
                    new OctetString(snmpTrapInfo.getGenerationTime().toString())));
            } else {
                trap.add(new VariableBinding(getOID(CsSnmpConstants.GENERATION_TIME)));
            }
        } else {
            throw new CloudRuntimeException(" Invalid alert Type ");
        }

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            target.setAddress(address);
            target.setRetries(retries);
            target.setTimeout(timeout);
            snmp.listen();


            PDU request = createPDU(target);
            if (request.getType() == PDU.GETBULK) {
                request.setMaxRepetitions(maxRepetitions);
                request.setNonRepeaters(nonRepeaters);
            }


            for (Object vb : vbs) {
                request.add((VariableBinding) vb);
            }


            PDU response = null;
            ResponseEvent responseEvent;
            long startTime = System.currentTimeMillis();
            responseEvent = snmp.send(request, target);
            if (responseEvent != null) {
                response = responseEvent.getResponse();

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     * processPdu
     *
     * @param e CommandResponderEvent
     */
    public synchronized void processPdu(CommandResponderEvent e) {
        PDU command = e.getPDU();
        if (command != null) {
            if (log.isDebugEnabled())
                log.debug(command.toString());
            if ((command.getType() != PDU.TRAP) && (command.getType() != PDU.V1TRAP)
                && (command.getType() != PDU.REPORT) && (command.getType() != PDU.RESPONSE)) {
                command.setErrorIndex(0);
                command.setErrorStatus(0);
                command.setType(PDU.RESPONSE);
                StatusInformation statusInformation = new StatusInformation();
                StateReference ref = e.getStateReference();
                try {
                    e.getMessageDispatcher().returnResponsePdu(e.getMessageProcessingModel(), e.getSecurityModel(),
                        e.getSecurityName(), e.getSecurityLevel(), command, e.getMaxSizeResponsePDU(), ref,

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            }
        }
    }


    public PDU createPDU(Target target) {
        PDU request;
        if (target.getVersion() == SnmpConstants.version3) {
            request = new ScopedPDU();
            ScopedPDU scopedPDU = (ScopedPDU) request;
            if (contextEngineID != null) {
                scopedPDU.setContextEngineID(contextEngineID);
            }


            if (contextName != null) {
                scopedPDU.setContextName(contextName);
            }
        } else {
            if (pduType == PDU.V1TRAP) {
                v1TrapPDU.setTimestamp(sysUpTime.toLong());
                request = v1TrapPDU;
            } else {
                request = new PDU();
            }
        }


        request.setType(pduType);
        return request;
    }

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        setSysUpTimeFromBootTime(bootTime); // needs to be called before checkTrapVariables();
        setTrapOIDFromAlertParameters(alertParameters); // needs to be called before checkTrapVariables();
        checkTrapVariables(this.vbs);
        try {
            PDU response = send();
            if ((getPduType() == PDU.TRAP) || (getPduType() == PDU.V1TRAP)) {
                return (PDU.getTypeString(getPduType()) + " sent successfully");
            } else if (response == null) {
                return ("Request timed out.");
            } else if (response.getType() == PDU.REPORT) {
                return getReport(response);
            } else if (this.operation == DEFAULT) {
                return "Response received with requestID=" + response.getRequestID() + ", errorIndex="
                    + response.getErrorIndex() + ", " + "errorStatus=" + response.getErrorStatusText() + "("
                    + response.getErrorStatus() + ")" + "\n" + getVariableBindings(response);
            } else {
                return "Received something strange: requestID=" + response.getRequestID() + ", errorIndex="
                    + response.getErrorIndex() + ", " + "errorStatus=" + response.getErrorStatusText() + "("
                    + response.getErrorStatus() + ")" + "\n" + getVariableBindings(response);
            }
        } catch (IOException ex) {
            log.error(ex.getMessage());
            return "Error while trying to send request: " + ex.getMessage();
        } catch (IllegalArgumentException ex) {

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        assertEquals(result.getState(), SUCCESS, result.getFailureMessages().toString());
        while (receivedTraps.peek() == null) {
            Thread.sleep(1000);
        }
        PDU pdu = receivedTraps.poll();
        assertNull(receivedTraps.peek(), "Only one trap should have been received");


        assertExpectedPdu(pdu, new PduExpectedValues(snmpTrapOid, resourceName, alertDefinitionName, alertPriority,
            platformName, alertConditions, alertUrl));
    }

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    enum Severity {
        high, medium, info;
    }


    protected void sendTrap(String message) {
        PDU pdu = new PDU();
        pdu.setType(PDU.TRAP);
        add(pdu, alertName, message);
        add(pdu, alertSeverity, Severity.medium);


        CommunityTarget target = new CommunityTarget();
        target.setCommunity(community);

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