Java PDU.TRAP属性代码示例

public void processPdu(CommandResponderEvent event) {
    PDU pdu = event.getPDU();
    // check PDU not null
    if (pdu != null) {
        // check for INFORM
        // code take from the book "Essential SNMP"
        if ((pdu.getType() != PDU.TRAP) && (pdu.getType() != PDU.V1TRAP) && (pdu.getType() != PDU.REPORT)
            && (pdu.getType() != PDU.RESPONSE)) {
            // first response the inform-message and then process the
            // message
            pdu.setErrorIndex(0);
            pdu.setErrorStatus(0);
            pdu.setType(PDU.RESPONSE);
            StatusInformation statusInformation = new StatusInformation();
            StateReference ref = event.getStateReference();
            try {
                event.getMessageDispatcher().returnResponsePdu(event.getMessageProcessingModel(),
                                                               event.getSecurityModel(),
                                                               event.getSecurityName(),
                                                               event.getSecurityLevel(), pdu,
                                                               event.getMaxSizeResponsePDU(), ref,
                                                               statusInformation);
                if (LOG.isDebugEnabled()) {
                    LOG.debug("response to INFORM sent");
                }
            } catch (MessageException ex) {
                getExceptionHandler().handleException(ex);
            }
        }
        processPDU(pdu, event);
    } else {
        LOG.debug("Received invalid trap PDU: " + pdu);
    }
}
 

private Snmp4jNotification newNotification(CommandResponderEvent event,
    SnmpTarget target, VarbindCollection varbinds) {
  switch (event.getPDU().getType()) {
    case PDU.V1TRAP:
      Snmp4jV1Trap trap = new Snmp4jV1Trap(target, varbinds);
      PDUv1 pdu = (PDUv1) event.getPDU();
      trap.setEnterprise(pdu.getEnterprise().toString());
      trap.setAgentAddress(pdu.getAgentAddress().toString());
      MibTrapV1Support trapSupport = varbindFactory.getMib()
          .getV1TrapSupport();
      trap.setGenericType(new ImmutableObjectValue(SMIConstants.SYNTAX_INTEGER,
          pdu.getGenericTrap(), trapSupport.getGenericTrapFormatter()));
      trap.setSpecificType(new ImmutableObjectValue(SMIConstants.SYNTAX_INTEGER,
          pdu.getSpecificTrap(), trapSupport.getSpecificTrapFormatter()));
      trap.setTimestamp(new ImmutableObjectValue(SMIConstants.SYNTAX_TIMETICKS,
          pdu.getTimestamp(), trapSupport.getTimestampFormatter()));
      return trap;
    case PDU.INFORM:
      return new Snmp4jNotification(SnmpNotification.Type.INFORM, target,
          varbinds);
    case PDU.TRAP:
      return new Snmp4jNotification(SnmpNotification.Type.TRAP, target,
          varbinds);
    default:
      throw new IllegalArgumentException("unrecognized PDU type");
  }
}
 

/**
 * This method will be called whenever a pdu is received on the given port specified in the listen() method
 */
public synchronized void processPdu(CommandResponderEvent cmdRespEvent)
{
  System.out.println("Received PDU...");
  PDU pdu = cmdRespEvent.getPDU();
  if (pdu != null)
  {

    System.out.println("Trap Type = " + pdu.getType());
    System.out.println("Variable Bindings = " + pdu.getVariableBindings());
    int pduType = pdu.getType();
    if ((pduType != PDU.TRAP) && (pduType != PDU.V1TRAP) && (pduType != PDU.REPORT)
    && (pduType != PDU.RESPONSE))
    {
      pdu.setErrorIndex(0);
      pdu.setErrorStatus(0);
      pdu.setType(PDU.RESPONSE);
      StatusInformation statusInformation = new StatusInformation();
      StateReference ref = cmdRespEvent.getStateReference();
      try
      {
        System.out.println(cmdRespEvent.getPDU());
        cmdRespEvent.getMessageDispatcher().returnResponsePdu(cmdRespEvent.getMessageProcessingModel(),
        cmdRespEvent.getSecurityModel(), cmdRespEvent.getSecurityName(), cmdRespEvent.getSecurityLevel(),
        pdu, cmdRespEvent.getMaxSizeResponsePDU(), ref, statusInformation);
      }
      catch (MessageException ex)
      {
        System.err.println("Error while sending response: " + ex.getMessage());
        LogFactory.getLogger(SnmpRequest.class).error(ex);
      }
    }
  }
}
 

protected void validate() {
	int pduType = getPdu().getType();
    if (pduType != PDU.TRAP && pduType != PDU.INFORM) {
        throw new IllegalArgumentException("Received not SNMPv2 Trap|Inform from host " + getTrapAddress() + " PDU Type = " + PDU.getTypeString(getPdu().getType()));
    }
    
    if (log().isDebugEnabled()) {
        log().debug("V2 "+m_pduTypeString+" numVars or pdu length: " + getPduLength());
    }
    
    if (getPduLength() < 2) {
        throw new IllegalArgumentException("V2 "+m_pduTypeString+" from " + getTrapAddress() + " IGNORED due to not having the required varbinds.  Have " + getPduLength() + ", needed at least 2");
    }
    
    OID varBindName0 = getVarBindAt(0).getOid();
    OID varBindName1 = getVarBindAt(1).getOid();

    /*
     * Modify the sysUpTime varbind OID to add the trailing 0 if it is
     * missing, which is seen with some Extreme equipment.
     */
    if (varBindName0.equals(EXTREME_SNMP_SYSUPTIME_OID)) {
        log().info("V2 "+m_pduTypeString+" from " + getTrapAddress() + " has been corrected due to the sysUptime.0 varbind not having been sent with a trailing 0.\n\tVarbinds received are : " + varBindName0 + " and " + varBindName1);
        varBindName0 = SNMP_SYSUPTIME_OID;
    }
    
    /*
     * Confirm that the two required varbinds (sysUpTime and
     * snmpTrapOID) are present and in that order.
     */
    if ((!(varBindName0.equals(SNMP_SYSUPTIME_OID))) || (!(varBindName1.equals(SNMP_TRAP_OID)))) {
        throw new IllegalArgumentException("V2 "+m_pduTypeString+" from " + getTrapAddress() + " IGNORED due to not having the required varbinds.\n\tThe first varbind must be sysUpTime.0 and the second snmpTrapOID.0\n\tVarbinds received are : " + varBindName0 + " and " + varBindName1);
    }
}
 

/**
 * @param command
 * @return
 */
private boolean isRequestPDU(PDU command) {
    return (command.getType() != PDU.TRAP) &&
            (command.getType() != PDU.V1TRAP) &&
            (command.getType() != PDU.REPORT) &&
            (command.getType() != PDU.RESPONSE);
}
 

@Override
public void processPdu(CommandResponderEvent event) {
	PDU pdu = event.getPDU();
	if(PDU.TRAP == pdu.getType()){
		operate(pdu);
	}else{
		log.info("pdu method is:" + pdu.getType() + " not a trap");
	}
	
}
 

protected Snmp4JV2TrapBuilder(Snmp4JStrategy strategy) {
    this(strategy, new PDU(), PDU.TRAP);
}