[SNMP4J] Need help:Unable to run sample snmp code with OIDs

2011-02-17 Thread anshul gupta
Hi,

I am sending the code with the error line no.
//import java.net.InetAddress;
import org.snmp4j.CommunityTarget;
import org.snmp4j.PDU;
import org.snmp4j.Snmp;
import org.snmp4j.TransportMapping;
import org.snmp4j.event.ResponseEvent;
import org.snmp4j.event.ResponseListener;
import org.snmp4j.mp.SnmpConstants;
import org.snmp4j.smi.*;
import org.snmp4j.transport.DefaultUdpTransportMapping;
//import java.lang.NullPointerException;
public class SNMP4JHelper
{
    public static final int SNMP_PORT = 161;
    public static final String READ_COMMUNITY = public;
    public static final String WRITE_COMMUNITY= private;
    public static final int mSNMPVersion =0; // 0 represents SNMP version=1
    public static final String OID_Hard_disk = 1.3.6.1.2.1.1.3.0;
//     1.3.6.1.4.1.2021.9.1.7.1;
//        .1.3.6.1.4.1.2021.4.4.0;
//        1.3.6.1.4.1.311.1.1.3.1.1.5.1.3;
        //1.3.6.1.4.1.318.1.1.1.12.3.2.1.3.1;
    //public static final String 
OID_UPS_BATTERY_CAPACITY=1.3.6.1.4.1.318.1.1.1.2.2.1.0;
    public static void main(String[] args)
    {
        try
        {
//            172.20.1.150
            String strIPAddress = 127.0.0.1;
            SNMP4JHelper objSNMP = new SNMP4JHelper();
            
        //objSNMP.snmpSet();
        int Value = 1;
            ///
            //Set Value=2 to trun OFF UPS OUTLET Group1
            //Value=1 to trun ON UPS OUTLET Group1
            //
            
        //    strIPAddress, WRITE_COMMUNITY,OID_Hard_disk, Value
        //    UPS_OUTLET_GROUP1
            objSNMP.snmpSet(strIPAddress, WRITE_COMMUNITY,OID_Hard_disk, Value);
            //
            //Get Basic state of UPS
            /
//line 45//
String batteryCap =objSNMP.snmpGet(strIPAddress,READ_COMMUNITY,OID_Hard_disk);
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }
    /*
     * The following code valid only SNMP version1. This
     * method is very useful to set a parameter on remote device.
     * */
     
    public void snmpSet(String strAddress, String community, String strOID, int 
Value)
    {
        strAddress= strAddress+/+SNMP_PORT;
        Address targetAddress = GenericAddress.parse(strAddress);
        Snmp snmp;
        try
        {
            TransportMapping transport = new DefaultUdpTransportMapping();
            snmp = new Snmp(transport);
            transport.listen();
            CommunityTarget target = new CommunityTarget();
            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() 
            {
                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);
                    if ( event.getResponse() != null )
                    {
                        System.out.println(Set Status 
is:+event.getResponse().getErrorStatusText());
                    }
                }
            };
            snmp.send(pdu, target, null, listener);
            
            snmp.close();
            
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }
    /*
     * The code is valid only SNMP version1. SnmpGet method
     * return Response for given OID from the Device.
     */
     
    public String snmpGet(String strAddress, String community, String strOID)
    {
        String str=;
        try
        {
            OctetString comm1 = new OctetString(community);
            strAddress= strAddress+/+ SNMP_PORT;
            Address targetaddress = new UdpAddress(strAddress);
            TransportMapping transport = new DefaultUdpTransportMapping();
            transport.listen();
            CommunityTarget comtarget = new CommunityTarget();
            comtarget.setCommunity(comm1);
            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)));
            

[SNMP4J] Need help:Unable to run sample snmp code with OIDs

2011-02-17 Thread anshul gupta
Hi,





I have one more code the output is coming NULL for it i dont why.Please if u 
can help me on this and the output language is not understandable
 import java.io.IOException;  

 import org.snmp4j.*;  

 import org.snmp4j.smi.Address;  

 import org.snmp4j.CommandResponder;  

 import org.snmp4j.CommandResponderEvent;  

 import org.snmp4j.CommunityTarget;  

 import org.snmp4j.PDU;  

 import org.snmp4j.ScopedPDU;  

 import org.snmp4j.Snmp;  

 import org.snmp4j.TransportMapping;  

 import org.snmp4j.UserTarget;  

 import org.snmp4j.event.ResponseEvent;  

 import org.snmp4j.event.ResponseListener;  

 import org.snmp4j.mp.MPv3;  

 import org.snmp4j.mp.SnmpConstants;  

 import org.snmp4j.security.AuthMD5;  

 import org.snmp4j.security.PrivDES;  

 import org.snmp4j.security.SecurityLevel;  

 import org.snmp4j.security.SecurityModels;  

 import org.snmp4j.security.SecurityProtocols;  

 import org.snmp4j.security.USM;  

 import org.snmp4j.security.UsmUser;  

 import org.snmp4j.smi.Address;  

 import org.snmp4j.smi.GenericAddress;  

 import org.snmp4j.smi.OID;  

 import org.snmp4j.smi.OctetString;  

 import org.snmp4j.smi.VariableBinding;  

 import org.snmp4j.transport.DefaultUdpTransportMapping;  

 import org.snmp4j.Snmp;  

 import org.snmp4j.CommunityTarget;  

 public class Main  

 {  

  public static void main(String[] args) throws IOException{  

 // TODO code application logic here  

 Address targetAddress = GenericAddress.parse(udp:127.0.0.1/161);  

    TransportMapping transport = new DefaultUdpTransportMapping();  

  

    Snmp snmp = new Snmp(transport);  

  //USM - User Based Security Model  

    USM usm = new USM(SecurityProtocols.getInstance(),  

  new OctetString(MPv3.createLocalEngineID()), 0);  

    SecurityModels.getInstance().addSecurityModel(usm);  

    transport.getListenAddress();  

    if(transport.getListenAddress()!=null)  

    System.out.println(Adresa de ascultare 
este:+transport.getListenAddress());  

    else System.out.println(Nu exista);  

   byte a[]=new byte[]{1,2};  

    transport.sendMessage(targetAddress, a);  

    transport.listen();  

   if(transport.isListening())  

   System.out.println(Marimea maxima a mesajul este: 
+transport.getMaxInboundMessageSize());  

    System.out.println(snmp.getNextRequestID());  

   

 snmp.getUSM().addUser(new OctetString(MD5DES),  

  new UsmUser(new OctetString(MD5DES),  

  AuthMD5.ID,  

  new 
OctetString(MD5DESUserAuthPassword),  

 PrivDES.ID,  

  new 
OctetString(MD5DESUserPrivPassword)));  

    // creare target  

    UserTarget target = new UserTarget();  

    target.setAddress(targetAddress);  

    target.setRetries(1);  

    target.setTimeout(5000);  

    target.setVersion(SnmpConstants.version3);  

    target.setSecurityLevel(SecurityLevel.AUTH_PRIV);  

    target.setSecurityName(new OctetString(MD5DES));  

 System.out.println(User~ul: +snmp.getUSM());  

   

 System.out.println(Adresa la care va fi trimis mesajul: 
+target.getAddress());  

    // creare PDU  

    PDU pdu = new ScopedPDU();  

    pdu.add(new VariableBinding(new OID(1.3.6)));  

    pdu.setType(PDU.GETNEXT);  

   

 System.out.println(Tip PDU: +pdu.getType());  

   

    // trimitere PDU  

    ResponseEvent response = snmp.send(pdu, target);  

    // extrage raspunsul PDU (poate fi null daca timpul expira)  

    PDU responsePDU = response.getResponse();  

   

 System.out.println(Raspuns: +response.getResponse());  

   

    //extrage adresa folosita de agent pentru a trimite raspunsul  

 Address peerAddress = response.getPeerAddress();  

   

System.out.println(response.getRequest());  

 snmp.listen();  

  CommunityTarget communityTarget  = new CommunityTarget();  

    communityTarget.setCommunity(new OctetString(public));  

    communityTarget.setAddress(targetAddress);  

    communityTarget.setRetries(3);  

    communityTarget.setTimeout(3000);  

    communityTarget.setVersion(SnmpConstants.version1);  

   

    System.out.println(Comunity target: +communityTarget.getCommunity());  

    // creare 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.add(new VariableBinding(new OID(new int[] {1,3,6,1,2,1,1,3})));  

    pdu.add(new VariableBinding(new OID(new int[] {1,3,6,1,2,1,1,4})));  

    pdu.add(new VariableBinding(new OID(new int[] {1,3,6,1,2,1,1,5})));  

    pdu.setType(PDU.GETNEXT);  

  

 snmp.listen();  

   

 ResponseListener listener = new ResponseListener() {  

 public void onResponse(ResponseEvent event) {  

 PDU response = event.getResponse();  

 PDU request = event.getRequest();  

   

[SNMP4J] Need help:Unable to run sample snmp code with OIDs

2011-02-17 Thread anshul gupta
Hi,
I have tried running code by commenting hte line u have asked but error is 
still coming 


ERROR:


Exception in thread DefaultUDPTransportMapping_192.168.2.2/0 
java.lang.NullPointerException
    at org.snmp4j.transport.DefaultUdpTransportMapping$ListenThread.run(Unknown 
Source)
    at java.lang.Thread.run(Unknown Source)
    at org.snmp4j.util.DefaultThreadFactory$WorkerThread.run(Unknown Source)
java.lang.NullPointerException
    at SNMP4JHelper.snmpGet(SNMP4JHelper.java:132)
    at SNMP4JHelper.main(SNMP4JHelper.java:45)Response=


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