private SnmpOidValuePair outputResponse(VariableBinding vb) {
SnmpOidValuePair oidval = new SnmpOidValuePair();
oidval.oid = vb.getOid().toString();
oidval.value_str = vb.getVariable().toString();
if (m_snmpResponseHandler != null) {
m_snmpResponseHandler.responseReceived(oidval);
}
return oidval;
}
/**
* Method which takes a single OID and returns the response from the agent as a String.
*
* @param oid
* @return
* @throws IOException
*/
public String getAsString(OID... oid) throws IOException {
// ResponseEvent event = get(new OID[]{oid});
// return event.getResponse().get(0).getVariable().toString();
ResponseEvent event = get(oid);
PDU response = event.getResponse();
int size = oid.length;
// VariableBinding variableBinding=response.get(0);
// Variable variable=variableBinding.getVariable();
// String varStirng=variable.toString();
// return varStirng;
StringBuilder builder = new StringBuilder();
for (int i = 0; i < size; i++) {
VariableBinding variableBinding = response.get(i);
Variable variable = variableBinding.getVariable();
String varStirng = variable.toString();
String oi = variableBinding.getOid().toString();
builder.append("oid: ").append(oi).append(" var: ").append(varStirng).append("\n");
}
return builder.toString();
}
private boolean processWalk(PDU response, PDU request, OID rootOID) throws SnmpException {
if ((response == null)
|| (response.getErrorStatus() != 0)
|| (response.getType() == PDU.REPORT)) {
return true;
}
boolean finished = false;
OID lastOID = request.get(0).getOid();
for (int i = 0; (!finished) && (i < response.size()); i++) {
VariableBinding vb = response.get(i);
if ((vb.getOid() == null)
|| (vb.getOid().size() < rootOID.size())
|| (rootOID.leftMostCompare(rootOID.size(), vb.getOid()) != 0)) {
finished = true;
} else if (Null.isExceptionSyntax(vb.getVariable().getSyntax())) {
outputResponse(vb);
finished = true;
} else if (vb.getOid().compareTo(lastOID) <= 0) {
throw new SnmpException(
"Variable received is not lexicographic successor of requested one:"
+ vb.toString()
+ " <= "
+ lastOID);
} else {
outputResponse(vb);
lastOID = vb.getOid();
}
}
if (response.size() == 0) {
finished = true;
}
if (!finished) {
VariableBinding next = response.get(response.size() - 1);
next.setVariable(new Null());
request.set(0, next);
request.setRequestID(new Integer32(0));
}
return finished;
}
/**
* Read a variable saved into @DriverConfiguration object
*
* @param propertyConfiguration driver configuration object
* @throws GenericException if configuration fatal error
*/
@Override
public void readValue(DriverConfiguration propertyConfiguration) throws GenericException {
try {
ResponseEvent response = snmpGet(String.valueOf(propertyConfiguration.getValue()));
if (response != null) {
if (log.isDebugEnabled()) {
log.debug("Got Snmp Get Response from Agent");
}
PDU responsePDU = response.getResponse();
if (responsePDU != null) {
int errorStatus = responsePDU.getErrorStatus();
if (errorStatus == PDU.noError) {
Vector<? extends VariableBinding> variableBindings = responsePDU.getVariableBindings();
if (log.isDebugEnabled()) {
log.debug(String.format("Snmp Get Response = %s", variableBindings));
}
VariableBinding variableBinding = variableBindings.get(0);
Variable variable = variableBinding.getVariable();
Object value = convert(variable, getValueType(variable));
setValue(propertyConfiguration, value);
} else {
notifyResponse(response, propertyConfiguration.getName());
}
} else {
if (log.isDebugEnabled()) {
log.debug("Error: Response PDU is null");
}
}
} else {
notifyResponse(response, propertyConfiguration.getName());
}
} catch (Exception e) {
throw new GenericException(e);
}
}