snmpget.java

this api for java to do the network managerment of system,i like it ,so share for a

/* $Id: snmpget.src,v 1.4.2.3 2006/07/10 16:30:25 rravikumar Exp $ */
/*
 * @(#)snmpget.java
 * Copyright (c) 1996-2004 AdventNet, Inc. All Rights Reserved.
 * Please read the associated COPYRIGHTS file for more details.
 */

/**
 * This is an example program to explain how to write an application to do
 * the basic SNMP operation GET using com.adventnet.snmp.snmp2 package of
 * AdventNetSNMP2 api.
 * The user could run this application by giving any one of the following usage.
 *  
 * java snmpget [options] hostname oid ...
 *
 * v1 request:
 * java snmpget [-d] [-c community] [-p port] [-t timeout] [-r retries] host OID [OID] ...
 * e.g. 
 * java snmpget -p 161 -c public adventnet 1.1.0 1.2.0
 *
 * v2c request:
 * java snmpget [-d] [-v version(v1,v2)] [-c community] [-p port] [-t timeout] [-r retries] host OID [OID] ...
 * e.g. For v1 request give -v v1 or drop the option -v .
 * java snmpget -p 161 -v v2 -c public adventnet 1.1.0 1.2.0
 * 
 * v3 request:
 * java snmpget [-d] [-v version(v1,v2,v3)] [-c community] [-p port] [-r retries] [-t timeout] [-u user] [-a auth_protocol] [-w auth_password] [-s priv_password] [-i context_id] host OID [OID] ...
 * e.g.
 * java snmpget -v v3 -u initial2 -w initial2Pass -a MD5 10.3.2.120 1.2.0
 * 
 * If the oid is not starting with a dot (.) it will be prefixed by .1.3.6.1.2.1 .
 * So the entire OID of 1.1.0 will become .1.3.6.1.2.1.1.1.0 . You can also
 * give the entire OID .
 *
 * Options:
 * [-d]                - Debug output. By default off.
 * [-c] <community>    - community String. By default "public".
 * [-p] <port>         - remote port no. By default 161.
 * [-t] <Timeout>      - Timeout. By default 5000ms.
 * [-r] <Retries>      - Retries. By default 0.      
 * [-v] <version>      - version(v1 / v2 / v3). By default v1.
 * [-u] <username>     - The v3 principal/userName
 * [-a] <autProtocol>  - The authProtocol(MD5/SHA). Mandatory if authPassword is specified
 * [-w] <authPassword> - The authentication password.
 * [-s] <privPassword> - The privacy protocol password. Must be accompanied with auth password and authProtocol fields.
 * [-n] <contextName>  - The contextName to be used for the v3 pdu.
 * [-i] <contextID>    - The contextID to be used for the v3 pdu.
 * [-pp] <privProtocol> - The privProtocol(AES/DES). Mandatory if authPassword is specified  

 * host Mandatory      - The RemoteHost (agent).Format (string without double qoutes/IpAddress).
 * OID  Mandatory      - Give multiple no. of Object Identifiers.
 */

import java.lang.*;
import java.util.*;
import java.net.*;
import com.adventnet.snmp.snmp2.*;
import com.adventnet.snmp.snmp2.usm.*;

public class snmpget 
{

    public static void main(String args[]) 
    {
        
        // Take care of getting options



        String usage = 
            "\nsnmpget [-d] [-v version(v1,v2,v3)] [-c community]\n"+
            "[-p port] [-r retries] [-t timeout] [-u user]\n"+
            "[-a auth_protocol] [-w auth_password] [-s priv_password]\n"+
            "[-n contextName] [-i contextID][-pp privProtocol (AES/DES)] host OID [OID] ...";

        String options[] = 
            {
                "-d", "-c",  "-wc", "-p", "-r", "-t", "-m", "-v", "-u", "-a", "-w", "-s", "-n", "-i","-pp"
            };

        String values[] = 
            {
                "None", null, null, null, null, null, "None", null, null, null, null, null, null, null,null
            };       

            ParseOptions opt = new ParseOptions(args,options,values, usage);
            if (opt.remArgs.length<2)
            {
                opt.usage_error();
            }
        
            // Start SNMP API
            SnmpAPI api;
            api = new SnmpAPI();
            if (values[0].equals("Set"))
            {
                api.setDebug( true );
            }   
    
            // Open session
            SnmpSession session = new SnmpSession(api);        
        
            SetValues setVal = new SetValues( session, values ); 
            if(setVal.usage_error)
            {
                opt.usage_error();
            }   

            session.setTransportProvider("com.adventnet.snmp.snmp2.TcpTransportImpl");
            
            ProtocolOptions params = null;
            if(values[3] != null)
            {
                params = new TcpProtocolOptionsImpl(opt.remArgs[0], Integer.parseInt( values[3] ), -1);
            }
            else
            {
                params = new TcpProtocolOptionsImpl(opt.remArgs[0], 161, -1);
            }        
            session.setProtocolOptions(params);        
            
            // Build Get request PDU
            SnmpPDU pdu = new SnmpPDU();
            pdu.setCommand( api.GET_REQ_MSG );
    
            // add OIDs
            for (int i=1;i<opt.remArgs.length;i++) 
            {
                SnmpOID oid = new SnmpOID(opt.remArgs[i]);
                if (oid.toValue() == null) 
                {
                    System.err.println("Invalid OID argument: " + opt.remArgs[i]);
                }   
                else
                {
                    pdu.addNull(oid);
                }   
            }

            try 
            {
                //Open session
                session.open();
            }
            catch (SnmpException e) 
            {
                System.err.println("Error opening session:"+e.getMessage());
                System.exit(1);
            }


        if(session.getVersion()==SnmpAPI.SNMP_VERSION_3) 
        {
            pdu.setUserName(setVal.userName.getBytes());
            try
            {
                 	USMUtils.init_v3_parameters(
					setVal.userName,
				         null,
					setVal.authProtocol,
					setVal.authPassword,
					setVal.privPassword,
					params,
					session,
					false,
					setVal.privProtocol);              
 
            }
            catch(Exception e)
            {
                System.out.println(e.getMessage());
                System.exit(0);
            }
            pdu.setContextName(setVal.contextName.getBytes());
            pdu.setContextID(setVal.contextID.getBytes());
         } 

        SnmpPDU res_pdu = null;
        try 
        {
            // Send PDU and receive response PDU
            res_pdu = session.syncSend(pdu);
        }
        catch (SnmpException e)
        {
            System.err.println("Sending PDU"+e.getMessage());
            session.close();
            api.close();             
            System.exit(1);
        }    

        if (res_pdu == null) 
        {
            // timeout
            System.out.println("Request timed out to: " + opt.remArgs[0] );
            session.close();
            api.close();             
            System.exit(1);
        }

        // print and exit
        System.out.println("Response PDU received from " +
                ((TcpProtocolOptionsImpl)(res_pdu.getProtocolOptions())).getRemoteHost()+
                 ", community: " + res_pdu.getCommunity());
            
        // Check for error in response
        if (res_pdu.getErrstat() != 0)
        {
            System.err.println(res_pdu.getError());
        }   
        else 
        {
            // print the response pdu varbinds
            System.out.println(res_pdu.printVarBinds());
        }
        // close session
        session.close();
        // stop api thread
        api.close();
        System.exit(0);

    }

}