/**
* 向管理进程发送Trap报文
*
* @throws IOException
*/
public void sendPDU() throws IOException {
// 设置 target
CommunityTarget target = new CommunityTarget();
target.setAddress(targetAddress);
// 通信不成功时的重试次数
target.setRetries(2);
// 超时时间
target.setTimeout(1500);
// snmp版本
target.setVersion(SnmpConstants.version2c);
// 创建 PDU
PDU pdu = new PDU();
pdu.add(
new VariableBinding(new OID(".1.3.6.1.2.3377.10.1.1.1.1"), new OctetString("SnmpTrap")));
pdu.add(new VariableBinding(new OID(".1.3.6.1.2.3377.10.1.1.1.2"), new OctetString("JavaEE")));
pdu.add(
new VariableBinding(
new OID(".1.3.6.1.4.1.12612.220.11.1.3.0.1"), new OctetString("test_barco")));
pdu.setType(PDU.TRAP);
// 向Agent发送PDU，并接收Response
ResponseEvent respEvnt = snmp.send(pdu, target);
// 解析Response
if (respEvnt != null && respEvnt.getResponse() != null) {
Vector<VariableBinding> recVBs = respEvnt.getResponse().getVariableBindings();
for (int i = 0; i < recVBs.size(); i++) {
VariableBinding recVB = recVBs.elementAt(i);
System.out.println(recVB.getOid() + " : " + recVB.getVariable());
}
}
}
public void testTrap() throws Exception {
File alarmsFile = new File("alarms.txt");
alarmsFile.delete();
PDU trap = new PDU();
trap.setType(PDU.TRAP);
OID oid = new OID("1.2.3.4.5");
trap.add(new VariableBinding(SnmpConstants.snmpTrapOID, oid));
trap.add(
new VariableBinding(SnmpConstants.sysUpTime, new TimeTicks(5000))); // put your uptime here
trap.add(new VariableBinding(SnmpConstants.sysDescr, new OctetString("System Description")));
Variable alarmCode = new OctetString("777");
Variable agentId = new OctetString("AGENT_ID");
Variable alarmText = new OctetString("ALARM");
Variable agentAddress = new OctetString("127.0.0.1/161");
trap.add(new VariableBinding(new OID("1.2.3.4.5.1"), alarmCode));
trap.add(new VariableBinding(new OID("1.2.3.4.5.2"), agentId));
trap.add(new VariableBinding(new OID("1.2.3.4.5.3"), alarmText));
trap.add(new VariableBinding(new OID("1.2.3.4.5.4"), agentAddress));
server.readAndSaveTrap(trap);
assertTrue(alarmsFile.exists());
String fileContent = SnmpNmsTest.readFileAsString("alarms.txt");
assertTrue(fileContent.indexOf("AGENT_ID") > -1);
assertTrue(fileContent.indexOf("777") > -1);
assertTrue(fileContent.indexOf("ALARM") > -1);
}
private PDU CreateAndSetPdu() {
PDU pdu = new PDU();
pdu.add(new VariableBinding(new OID(oidFromInput)));
pdu.setType(PDU.GET);
pdu.setRequestID(new Integer32(2));
return pdu;
}
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);
}
private void requestAndVerifyResponse(int pduType, int version) throws Exception {
PDU pdu = createPDU(version);
for (AnticipatedRequest a : m_requestedVarbinds) {
pdu.add(a.getRequestVarbind());
}
pdu.setType(pduType);
PDU response = sendRequest(pdu, version);
assertNotNull("request timed out", response);
System.err.println("Response is: " + response);
assertTrue(
"unexpected report pdu: "
+ ((VariableBinding) response.getVariableBindings().get(0)).getOid(),
response.getType() != PDU.REPORT);
assertEquals(
"Unexpected number of varbinds returned.",
m_requestedVarbinds.size(),
response.getVariableBindings().size());
for (int i = 0; i < m_requestedVarbinds.size(); i++) {
AnticipatedRequest a = m_requestedVarbinds.get(i);
VariableBinding vb = response.get(i);
a.verify(vb);
}
reset();
}
/**
* This method creates the requst and puts it in an PDU object. This object will be returnd and
* used from Methods such as get,walk and getnext.
*
* @param type - the type of the response, possible are PDU.GET,PDU.GETNEXT, PDU.GETBULK
* @param oids - the requested OIDs
* @return - the request PDU
* @see org.snmp4j.ScopedPDU
*/
public PDU createPDU(int type, OID[] oids) {
// create the PDU
PDU requestPDU = new ScopedPDU();
requestPDU.setType(type);
// put the oid you want to get
for (OID oid : oids) {
requestPDU.add(new VariableBinding(oid));
}
return requestPDU;
}
/**
* 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);
}
private PDU createPDU(SnmpTrapInfo snmpTrapInfo) {
PDU trap = new PDU();
trap.setType(PDU.TRAP);
int alertType = snmpTrapInfo.getAlertType() + 1;
if (alertType > 0) {
trap.add(
new VariableBinding(SnmpConstants.sysUpTime, new OctetString(new Date().toString())));
trap.add(
new VariableBinding(
SnmpConstants.snmpTrapOID, getOID(CsSnmpConstants.TRAPS_PREFIX + alertType)));
trap.add(
new VariableBinding(
getOID(CsSnmpConstants.DATA_CENTER_ID),
new UnsignedInteger32(snmpTrapInfo.getDataCenterId())));
trap.add(
new VariableBinding(
getOID(CsSnmpConstants.POD_ID), new UnsignedInteger32(snmpTrapInfo.getPodId())));
trap.add(
new VariableBinding(
getOID(CsSnmpConstants.CLUSTER_ID),
new UnsignedInteger32(snmpTrapInfo.getClusterId())));
if (snmpTrapInfo.getMessage() != null) {
trap.add(
new VariableBinding(
getOID(CsSnmpConstants.MESSAGE), new OctetString(snmpTrapInfo.getMessage())));
} else {
throw new CloudRuntimeException(" What is the use of alert without message ");
}
if (snmpTrapInfo.getGenerationTime() != null) {
trap.add(
new VariableBinding(
getOID(CsSnmpConstants.GENERATION_TIME),
new OctetString(snmpTrapInfo.getGenerationTime().toString())));
} else {
trap.add(new VariableBinding(getOID(CsSnmpConstants.GENERATION_TIME)));
}
} else {
throw new CloudRuntimeException(" Invalid alert Type ");
}
return trap;
}
public String snmpGet(String strAddress, String community, String strOID) // SNMPget
{
String str = "";
try {
OctetString community1 = new OctetString(community);
strAddress = strAddress + "/" + 161; // Direccion + Puerto SNMP
Address targetaddress = new UdpAddress(strAddress); // direccion con puerto
TransportMapping transport = new DefaultUdpTransportMapping();
transport.listen();
/*
* Este metodo regresa un Target, que contiene informacion acerca de los
* datos y como deben ser mostrados y sus rangos.
*/
CommunityTarget comtarget = new CommunityTarget();
comtarget.setCommunity(community1);
comtarget.setVersion(SnmpConstants.version1);
comtarget.setAddress(targetaddress);
comtarget.setRetries(2);
comtarget.setTimeout(5000);
PDU pdu = new PDU();
ResponseEvent response;
Snmp snmp;
pdu.add(new VariableBinding(new OID(strOID)));
pdu.setType(PDU.GET);
snmp = new Snmp(transport);
response = snmp.get(pdu, comtarget);
if (response != null) {
if (response.getResponse().getErrorStatusText().equalsIgnoreCase("Success")) {
PDU pduresponse = response.getResponse();
str = pduresponse.getVariableBindings().firstElement().toString();
if (str.contains("=")) {
int len = str.indexOf("=");
str = str.substring(len + 1, str.length());
}
}
} else {
System.out.println("Feeling like a TimeOut occured ");
}
// En caso de que ocurra un Time out
snmp.close(); // cierra conexión
} catch (Exception e) {
}
System.out.println("Response= " + str); // en caso de ocurrio error lo arroja
return str;
}
/**
* @param ip
* @param community
*/
public static void snmpGetList(String ip, String community, List<String> oidList) {
CommunityTarget target = SnmpUtil.createDefault(ip, community);
Snmp snmp = null;
try {
PDU pdu = new PDU();
for (String oid : oidList) {
pdu.add(new VariableBinding(new OID(oid)));
}
DefaultUdpTransportMapping transport = new DefaultUdpTransportMapping();
transport.listen();
snmp = new Snmp(transport);
System.out.println("------->发送消息<-------");
pdu.setType(PDU.GET);
ResponseEvent respEvent = snmp.send(pdu, target);
System.out.println("PeerAddress:" + respEvent.getPeerAddress());
PDU response = respEvent.getResponse();
if (response == null) {
System.out.println("response is null, request time out");
} else {
System.out.println("response pdu size is " + response.size());
for (int i = 0; i < response.size(); i++) {
VariableBinding vb = response.get(i);
System.out.println(vb.getOid() + " = " + vb.getVariable());
}
}
System.out.println("SNMP GET List OID value finished !");
} catch (Exception e) {
e.printStackTrace();
System.out.println("SNMP GetList Exception:" + e);
} finally {
if (snmp != null) {
try {
snmp.close();
} catch (IOException ex1) {
snmp = null;
}
}
}
}
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());
}
}
/**
* This method returns a Target, which contains information about where the data should be fetched
* and how.
*
* @return
* @throws IOException
*/
private Target getTarget() throws IOException {
Address targetAddress = GenericAddress.parse(address);
// System.out.println(targetAddress.isValid());
// CommunityTarget target = new CommunityTarget();
// target.setCommunity(new OctetString("public"));
// target.setAddress(targetAddress);
// System.out.println(target.getAddress());
// target.setRetries(2);
// target.setTimeout(5500);
// target.setVersion(SnmpConstants.version2c);
// System.out.println(target.toString());
// return target;
CommunityTarget target = new CommunityTarget();
target.setCommunity(new OctetString(COMMUNITYKEY));
target.setAddress(targetAddress);
target.setRetries(2);
target.setTimeout(100);
target.setVersion(SnmpConstants.version1);
// creating PDU
PDU pdu = new PDU();
pdu.add(new VariableBinding(new OID(new int[] {1, 3, 6, 1, 2, 1, 1, 1})));
pdu.add(new VariableBinding(new OID(new int[] {1, 3, 6, 1, 2, 1, 1, 2})));
pdu.setType(PDU.GETNEXT);
// sending request
ResponseListener listener =
new ResponseListener() {
public void onResponse(ResponseEvent event) {
// Always cancel async request when response has been received
// otherwise a memory leak is created! Not canceling a request
// immediately can be useful when sending a request to a broadcast
// address.
((Snmp) event.getSource()).cancel(event.getRequest(), this);
// System.out.println("Received response PDU is: "+event.getResponse());
}
};
snmp.send(pdu, target, null, listener);
return target;
}
/**
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException {
TransportMapping transport = new DefaultUdpTransportMapping();
Snmp snmp = new Snmp(transport);
MessageDispatcherImpl dispatcher = new MessageDispatcherImpl();
transport.listen();
Address targetAddress = new UdpAddress("202.144.0.178/161");
// setting up target
CommunityTarget target = new CommunityTarget();
target.setCommunity(new OctetString("public"));
target.setAddress(targetAddress);
target.setRetries(2);
target.setTimeout(1500);
target.setVersion(SnmpConstants.version1);
// creating PDU
PDU pdu = new PDU();
pdu.add(new VariableBinding(new OID(new int[] {1, 3, 6, 1, 2, 1, 1, 1})));
pdu.add(new VariableBinding(new OID(new int[] {1, 3, 6, 1, 2, 1, 1, 2})));
pdu.setType(PDU.GETNEXT);
// sending request
ResponseListener listener =
new ResponseListener() {
public void onResponse(ResponseEvent event) {
// Always cancel async request when response has been received
// otherwise a memory leak is created! Not canceling a request
// immediately can be useful when sending a request to a
// broadcast
// address.
((Snmp) event.getSource()).cancel(event.getRequest(), this);
System.out.println("Received response PDU is: " + event.getResponse());
}
};
snmp.set(pdu, target, null, listener);
// snmp.sendPDU(pdu, target, null, listener);
}
public static List<String> get(
Snmp snmp, String address, String community, int version, int retry, String[] oids) {
List<String> list = new ArrayList<String>();
Address targetAddress = GenericAddress.parse(address);
CommunityTarget target = new CommunityTarget();
target.setCommunity(new OctetString(community));
target.setAddress(targetAddress);
target.setVersion(version);
target.setTimeout(1000);
target.setRetries(retry);
PDU pdu = new PDU();
pdu.setType(PDU.GET);
for (String oid : oids) {
pdu.add(new VariableBinding(new OID(oid)));
}
try {
ResponseEvent response = snmp.send(pdu, target);
PDU resposePdu = response.getResponse();
if (resposePdu != null) {
Vector<?> v = resposePdu.getVariableBindings();
for (Object o : v) {
if (o instanceof VariableBinding) {
VariableBinding vb = (VariableBinding) o;
String r = vb.getVariable().toString();
list.add(r);
}
}
}
} catch (IOException e) {
e.printStackTrace();
}
return list;
}
public void snmpSet(String strAddress, String community, String strOID, int Value) {
strAddress = strAddress + "/" + 161; // Direccion + Puerto SNMP
Address targetAddress = GenericAddress.parse(strAddress); // direccion con puerto
Snmp snmp;
try {
TransportMapping transport = new DefaultUdpTransportMapping();
snmp = new Snmp(transport);
transport.listen();
/*
* Este metodo regresa un Target, que contiene informacion acerca de los
* datos y como deben ser mostrados y sus rangos.
*/
CommunityTarget target =
new CommunityTarget(); // representa las propiedades del target SNMP basado en proceso de
// modelos
target.setCommunity(new OctetString(community));
target.setAddress(targetAddress);
target.setRetries(2);
target.setTimeout(5000);
target.setVersion(SnmpConstants.version1);
PDU pdu = new PDU();
pdu.add(new VariableBinding(new OID(strOID), new Integer32(Value)));
pdu.setType(PDU.SET);
ResponseListener listener =
new ResponseListener() {
@Override // public method declared in Object
public void onResponse(ResponseEvent event) {
((Snmp) event.getSource()).cancel(event.getRequest(), this);
System.out.println("Set Status is:" + event.getResponse().getErrorStatusText());
// Impresion del status de la respuesta
}
};
snmp.send(pdu, target, null, listener); // envio de parametros
snmp.close(); // cierra socket snmp
} catch (Exception e) {
}
}
private static Vector<VariableBinding> getTableRow(
Snmp snmp, CommunityTarget target, String[] colOids, String firstOid) {
PDU pdu = new PDU();
pdu.setType(PDU.GETNEXT);
for (String oid : colOids) {
pdu.add(new VariableBinding(new OID(oid)));
}
Vector<VariableBinding> v = null;
try {
ResponseEvent response = snmp.send(pdu, target);
PDU resposePdu = response.getResponse();
if (resposePdu != null) {
v = resposePdu.getVariableBindings();
if (v != null && v.size() > 0) {
VariableBinding vb = v.get(0);
String oid = vb.getOid().toString();
if (!oid.startsWith(firstOid)) return null;
}
}
} catch (IOException e) {
e.printStackTrace();
}
return v;
}
public static List<String[]> getTable(
Snmp snmp, String address, String community, int version, int retry, String[] colOids) {
List<String[]> list = new ArrayList<String[]>();
Address targetAddress = GenericAddress.parse(address);
CommunityTarget target = new CommunityTarget();
target.setCommunity(new OctetString(community));
target.setAddress(targetAddress);
target.setVersion(version);
target.setTimeout(1000);
target.setRetries(retry);
PDU pdu = new PDU();
pdu.setType(PDU.GETNEXT);
for (String oid : colOids) {
pdu.add(new VariableBinding(new OID(oid)));
}
int i = 0;
String firstOid = colOids[0];
Vector<VariableBinding> row = null;
do {
row = getTableRow(snmp, target, colOids, firstOid);
if (row != null && colOids.length == row.size()) {
String[] ss = new String[colOids.length];
for (int n = 0; n < colOids.length; n++) {
VariableBinding vb = row.get(n);
String r = vb.getVariable().toString();
colOids[n] = vb.getOid().toString();
ss[n] = r;
}
list.add(ss);
}
} while (i++ < 200 && row != null);
return list;
}
public void processPdu(CommandResponderEvent pRequest) {
final PDU requestPdu = pRequest.getPDU();
if (requestPdu == null) {
return;
}
try {
final PDU responsePdu = new PDU(requestPdu);
responsePdu.setType(PDU.RESPONSE);
if (requestPdu.getType() == PDU.GET) {
for (VariableBinding binding : responsePdu.toArray()) {
final OID oid = binding.getOid();
final String path = jmxMib.getPathFromOid(oid.toString());
if (path == null) {
binding.setVariable(Null.noSuchObject);
continue;
}
final JmxAttribute attribute = jmxIndex.getAttributeAtPath(path);
if (attribute == null) {
binding.setVariable(Null.noSuchObject);
continue;
}
final Variable variable = getVariableFromJmxAttribute(attribute);
if (variable != null) {
binding.setVariable(variable);
}
}
} else if (requestPdu.getType() == PDU.GETNEXT) {
for (VariableBinding binding : responsePdu.toArray()) {
final OID oid = binding.getOid();
final String next = jmxMib.getNextOidFromOid(oid.toString());
if (next == null) {
binding.setVariable(Null.noSuchObject);
continue;
}
final OID nextOid = new OID(next);
binding.setOid(nextOid);
final String path = jmxMib.getPathFromOid(nextOid.toString());
if (path == null) {
binding.setVariable(Null.noSuchObject);
continue;
}
final JmxAttribute attribute = jmxIndex.getAttributeAtPath(path);
if (attribute == null) {
binding.setVariable(Null.noSuchObject);
continue;
}
final Variable variable = getVariableFromJmxAttribute(attribute);
if (variable != null) {
binding.setVariable(variable);
}
}
} else {
}
pRequest.getStateReference().setTransportMapping(pRequest.getTransportMapping());
pRequest
.getMessageDispatcher()
.returnResponsePdu(
pRequest.getMessageProcessingModel(),
pRequest.getSecurityModel(),
pRequest.getSecurityName(),
pRequest.getSecurityLevel(),
responsePdu,
pRequest.getMaxSizeResponsePDU(),
pRequest.getStateReference(),
new StatusInformation());
} catch (Exception e) {
e.printStackTrace();
}
}
/** {@inheritDoc} */
public PDU processPdu(PDU pdu) throws SnmpToolkitException {
Log log = LogFactory.getLog(this.getClass());
// 応答用のPDUを生成する
PDU retPdu = new PDU();
retPdu.setType(PDU.RESPONSE);
// 要求のリクエストIDを取得し、応答PDUにセットする
Integer32 requestID = pdu.getRequestID();
retPdu.setRequestID(requestID);
// SNMP4J用の型変換オブジェクト
SnmpVariableHelper varHelper = new Snmp4jVariableHelper();
// AgentServiceからAgentを取得する
Agent agent = this.agentService_.getAgent();
// 要求PDUのVarbindを走査する
int varCount = 0;
List<?> reqVarbinds = pdu.getVariableBindings();
for (Object reqVarbindObj : reqVarbinds) {
varCount++;
// 要求されているOIDを取得する
VariableBinding reqVarbind = (VariableBinding) reqVarbindObj;
OID oid = reqVarbind.getOid();
// GETNEXTでない場合は、指定されたOIDそのものを取得しようとする
// GETNEXTの場合は、指定されたOID配下で最も近いオブジェクトを探す
boolean exact = (pdu.getType() != PDU.GETNEXT);
SnmpVarbind foundVarbind = agent.findObject(oid.toString(), exact);
if (foundVarbind == null) {
// Varbindが見つからなかった場合はnoSuchNameを返す
log.warn("varbind is not found. oid=" + oid.toString());
retPdu.setErrorStatus(SnmpConstants.SNMP_ERROR_NO_SUCH_NAME);
retPdu.setErrorIndex(varCount);
Variable retObject = new Null();
VariableBinding retVarbind = new VariableBinding(oid, retObject);
retPdu.add(retVarbind);
break;
}
// READ-WRITEでなければエラー応答を返す
String accessibility = foundVarbind.getAccessibility();
if (accessibility.equals(SnmpVarbind.ACCESSIBILITY_NOT_ACCESSIBLE) == true) {
log.warn("varbind is not accessible. accessibility=" + accessibility);
retPdu.setErrorStatus(SnmpConstants.SNMP_ERROR_NO_ACCESS);
retPdu.setErrorIndex(varCount);
Variable retObject = new Null();
VariableBinding retVarbind = new VariableBinding(oid, retObject);
retPdu.add(retVarbind);
break;
}
try {
// 正常の応答を返す
retPdu.setErrorStatus(SnmpConstants.SNMP_ERROR_SUCCESS);
retPdu.setErrorIndex(0);
log.debug("varbind is found: " + foundVarbind.toString());
String typeStr = foundVarbind.getType();
Object retValueObj = foundVarbind.getValue();
Variable retObject = (Variable) varHelper.createAsnObject(retValueObj, typeStr);
OID retOID = new OID(foundVarbind.getOid());
VariableBinding retVarbind = new VariableBinding(retOID, retObject);
retPdu.add(retVarbind);
} catch (Exception exception) {
log.warn("exception occured", exception);
// 未知のエラーを示す応答PDUを作成する
retPdu.setErrorStatus(SnmpConstants.SNMP_ERROR_GENERAL_ERROR);
retPdu.setErrorIndex(varCount);
if (foundVarbind != null) {
OID retOID = new OID(foundVarbind.getOid());
Variable retObject = new Null();
VariableBinding retVarbind = new VariableBinding(retOID, retObject);
retPdu.add(retVarbind);
}
}
}
return retPdu;
}
/**
* 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) {
logger.info("Received PDU...");
PDU pdu = cmdRespEvent.getPDU();
if (pdu != null) {
try {
Event event;
Map<String, String> headers;
StringBuilder stringBuilder = new StringBuilder();
// getVariableBindings: Gets the variable binding vector.
Vector<? extends VariableBinding> vbs = pdu.getVariableBindings();
for (VariableBinding vb : vbs) {
// To extract only the value of the OID
// stringBuilder.append(vb.getVariable().toString());
stringBuilder.append(vb.toString() + ",");
}
String messageString = stringBuilder.toString();
// trick: remove the last comma
messageString = messageString.replaceAll(",$", "");
byte[] message = messageString.getBytes();
event = new SimpleEvent();
headers = new HashMap<String, String>();
headers.put("timestamp", String.valueOf(System.currentTimeMillis()));
logger.info("Message: {}", messageString);
event.setBody(message);
event.setHeaders(headers);
if (event == null) {
return;
}
// store the event to underlying channels(s)
getChannelProcessor().processEvent(event);
counterGroup.incrementAndGet("events.success");
} catch (ChannelException ex) {
counterGroup.incrementAndGet("events.dropped");
logger.error("Error writting to channel", ex);
return;
}
logger.info("Trap Type = " + pdu.getType());
logger.info("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);
}
}
}
}