public void snmpWalk(String oidFrom) throws SnmpException {
PDU request = new PDU();
request.setType(PDU.GETNEXT);
request.add(new VariableBinding(new OID(oidFrom)));
request.setNonRepeaters(0);
OID rootOID = request.get(0).getOid();
PDU response = null;
int objects = 0;
int requests = 0;
long startTime = System.currentTimeMillis();
try {
Snmp snmp = new Snmp(new DefaultUdpTransportMapping());
snmp.listen();
m_sessionDestroyed = false;
do {
requests++;
ResponseEvent responseEvent = snmp.send(request, getTarget(getReadCommunity()));
response = responseEvent.getResponse();
if (response != null) {
objects += response.size();
}
} while (!processWalk(response, request, rootOID) && !m_sessionDestroyed);
} catch (SnmpException e) {
throw e;
} catch (Exception e) {
e.printStackTrace();
throw new SnmpException(e.getMessage());
}
if (m_snmpResponseHandler != null) {
m_snmpResponseHandler.requestStats(requests, objects, System.currentTimeMillis() - startTime);
}
}
private ResponseEvent snmpGet(String targetOid) throws IOException {
PDU pdu = new PDU();
pdu.add(new VariableBinding(new OID(targetOid)));
pdu.setType(PDU.GET);
// send the PDU
return snmp.send(pdu, target);
}
/**
* This method is capable of handling multiple OIDs
*
* @param oids
* @return
* @throws IOException
*/
public ResponseEvent get(OID... oids) throws IOException {
PDU pdu = new PDU();
for (OID oid : oids) {
pdu.add(new VariableBinding(oid));
}
pdu.setType(PDU.GET);
ResponseEvent event = snmp.send(pdu, getTarget(), null);
if (event != null) {
return event;
}
throw new RuntimeException("GET timed out");
}
public void updateByValue(
URI url, List<Variable> values, SnmpUriCallback callback, Object userObject)
throws UnknownHostException {
Request request = createSnmpRequest(url);
PDU pdu = request.getPdu();
pdu.setType(PDU.SET);
OID[] oids = request.getOIDs();
for (int i = 0; i < oids.length && i < values.size(); i++) {
pdu.add(new VariableBinding(oids[i], values.get(i)));
}
sendSnmpRequest(request, pdu, url, callback, userObject);
}
public void browse(URI url, SnmpUriCallback callback, Object userObject)
throws UnknownHostException {
Request request = createSnmpRequest(url);
PDU pdu = request.getPdu();
switch (request.getType()) {
case GET:
pdu.setType(PDU.GET);
pdu.addAll(VariableBinding.createFromOIDs(request.getOIDs()));
sendSnmpRequest(request, pdu, url, callback, userObject);
break;
case NEXT:
pdu.setType(PDU.GETNEXT);
pdu.addAll(VariableBinding.createFromOIDs(request.getOIDs()));
sendSnmpRequest(request, pdu, url, callback, userObject);
break;
case SUBTREE:
TreeUtils treeUtils = new TreeUtils(snmp, pduFactory);
TreeListener treeListener = new AsyncTreeListener(url, callback);
treeUtils.walk(request.getTarget(), request.getOIDs(), userObject, treeListener);
break;
}
}
public void sendByBinding(
URI url,
List<VariableBinding> values,
int pduType,
SnmpUriCallback callback,
Object userObject)
throws UnknownHostException {
Request request = createSnmpRequest(url);
PDU pdu = request.getPdu();
pdu.setType(pduType);
for (VariableBinding vb : values) {
pdu.add(vb);
}
sendSnmpRequest(request, pdu, url, callback, userObject);
}
void snmpSetValue(String oid, int syntax, String value) throws SnmpException {
VariableBinding varbind = getVarBindForSetRequest(oid, syntax, value);
PDU request = new PDU();
request.setType(PDU.SET);
request.add(varbind);
PDU response = null;
long startTime = System.currentTimeMillis();
try {
Snmp snmp = new Snmp(new DefaultUdpTransportMapping());
snmp.listen();
ResponseEvent responseEvent = snmp.send(request, getTarget(getWriteCommunity()));
response = responseEvent.getResponse();
// System.out.println(response);
} catch (Exception e) {
e.printStackTrace();
throw new SnmpException(e.getMessage());
}
}