/**
* This method needs a valid root OID to return a VariableBinding list with the sub entities.
*
* @param rootID - The root OID
* @return - a list containing VariableBinding
*/
public List<VariableBinding> getSubtree(OID rootID) throws TreeEventException {
TreeUtils treeUtils = new TreeUtils(snmp, new DefaultPDUFactory());
treeUtils.setMaxRepetitions(Integer.MAX_VALUE);
List<TreeEvent> events = treeUtils.getSubtree(authentication.getTarget(), rootID);
// Get snmpwalk result.
List<VariableBinding> varBindings = new ArrayList<VariableBinding>();
for (TreeEvent event : events) {
if (event != null) {
if (event.isError())
throw new TreeEventException("oid [" + rootID + "] " + event.getErrorMessage());
Collections.addAll(varBindings, event.getVariableBindings());
}
}
return varBindings;
}
/**
* The method get can be specified with an Array of requested OIDs. A Vector with elements of the
* subclass VariableBinding will be returned. OID requested from the method GET can only return a
* value. Therefore the OIDd must be a scalar and not a branch.
*
* @param oids - the requested OIDs
* @return - a Vector with VariableBindings
* @throws SNMPTimeOutException - will be thrown if a timeout with request happens
* @throws PDURequestFailedException - will be thrown if an error occurs within the request
* @see org.snmp4j.smi.VariableBinding
*/
public Vector<? extends VariableBinding> get(OID[] oids)
throws SNMPTimeOutException, PDURequestFailedException {
ResponseEvent responseEvent = null;
Vector<? extends VariableBinding> vbs = null;
try {
// send the PDU
responseEvent = snmp.send(createPDU(PDU.GET, oids), authentication.getTarget());
Logger.getLogger(SnmpManager.class.getName()).log(Level.INFO, responseEvent.toString());
} catch (IOException e) {
System.err.println(e.getMessage());
}
// extract the response PDU (could be null if timed out)
if (responseEvent != null) {
PDU responsePDU = responseEvent.getResponse();
if (checkResponsePDU(responsePDU)) vbs = responsePDU.getVariableBindings();
} else {
throw new SNMPTimeOutException();
}
return vbs;
}
