Hi,
What version of SNMP4J are you using?
Why are you creating a Snmp instance and Transport for each
method call? (Opening a socket is slow and closing it might not
work instantly on all systems, thus this approach is not recommended)
Best regards,
Frank
Am 06.09.2012 13:45, schrieb MILLIGAN, Kristoffer:
> Hello list,
>
> snmp4j is for the most part working as expected .. I am however having a
> problem with a method of mine.
>
> The method will leave a DefaultUdpTransportMapping listerner running, and it
> will leave a Timer running. These never seem to die. What am I doing wrong,
> and how can I kill of these listeners?
>
> public ArrayList<String> getValues(String oid) throws IOException {
>
> ArrayList<String> result = new ArrayList<String>();
>
> TransportMapping transport = new DefaultUdpTransportMapping();
> //transport.listen();
>
> // Create Target Address object
> CommunityTarget comtarget = new CommunityTarget();
> comtarget.setCommunity(new
> OctetString(Setting.getInstance().getValue("settings", "community")));
> comtarget.setVersion(SnmpConstants.version2c);
> comtarget.setAddress(new
> UdpAddress(Setting.getInstance().getValue("settings", "ip") + "/" +
> Setting.getInstance().getValue("settings", "port")));
> comtarget.setRetries(2);
> comtarget.setTimeout(5000);
>
> // Create the PDU object
> PDU pdu = new PDU();
> pdu.add(new VariableBinding(new OID(oid)));
> pdu.setType(PDU.GET);
> //pdu.setRequestID(new Integer32(1));
>
> // Create Snmp object for sending data to Agent
> Snmp snmp = new Snmp(transport);
> snmp.listen();
> ResponseEvent response;
> while(true) {
> response = snmp.getNext(pdu, comtarget);
> if (response != null) {
> PDU responsePDU = response.getResponse();
> if(!response.getResponse().get(0).getOid().startsWith(new
> OID(oid))) {
> //System.out.println("Starting with the same OID -
> breaking!");
> break;
> }
> if (responsePDU != null) {
> int errorStatus = responsePDU.getErrorStatus();
> if (errorStatus == PDU.noError){
> result.add(responsePDU.get(0).toValueString());
> pdu = response.getResponse();
> System.out.println("Adding " +
> responsePDU.get(0).toValueString());
> }
> else {
> System.out.println("Response was error: " +
> pdu.getErrorStatusText());
> break;
> }
> } else {
> System.out.println("PDU received was null");
> break;
> }
> } else {
> System.out.println("Response received was null");
> break;
> }
> }
> snmp.close();
>
> return result;
> }
>
>
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