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import snmp.*;
import java.net.*;
public class SNMPMultithreadTest
implements Runnable
{
SNMPv1CommunicationInterface comInterface;
public class RetrieveThread extends Thread
{
public int i;
public RetrieveThread(Runnable r, int i)
{
super(r);
this.i = i;
}
}
public static void main(String args[])
{
SNMPMultithreadTest app = new SNMPMultithreadTest();
}
public SNMPMultithreadTest()
{
try
{
// create a communications interface to a remote SNMP-capable device;
// need to provide the remote host's InetAddress and the community
// name for the device; in addition, need to supply the version number
// for the SNMP messages to be sent (the value 0 corresponding to SNMP
// version 1)
InetAddress hostAddress = InetAddress.getByName("10.0.1.1");
String community = "public";
int version = 0; // SNMPv1
comInterface = new SNMPv1CommunicationInterface(version, hostAddress, community);
comInterface.setSocketTimeout(500);
for (int i = 0; i < 1000; i++)
{
RetrieveThread retrievalThread = new RetrieveThread(this, i);
retrievalThread.start();
}
}
catch(Exception e)
{
System.out.println("Exception during SNMP operation: " + e + "\n");
}
}
public void run()
{
int threadIndex = ((RetrieveThread)Thread.currentThread()).i;
while (true)
{
try
{
// now send an SNMP GET request to retrieve the value of the SNMP variable
// corresponding to OID 1.3.6.1.2.1.2.1.0; this is the OID corresponding to
// the device identifying string, and the type is thus SNMPOctetString
String itemID = "1.3.6.1.2.1.1.1.0";
System.out.println("Thread " + threadIndex + ": Retrieving value corresponding to OID " + itemID);
// the getMIBEntry method of the communications interface returns an SNMPVarBindList
// object; this is essentially a Vector of SNMP (OID,value) pairs. In this case, the
// returned Vector has just one pair inside it.
SNMPVarBindList newVars = comInterface.getMIBEntry(itemID);
// extract the (OID,value) pair from the SNMPVarBindList; the pair is just a two-element
// SNMPSequence
SNMPSequence pair = (SNMPSequence)(newVars.getSNMPObjectAt(0));
// extract the object identifier from the pair; it's the first element in the sequence
SNMPObjectIdentifier snmpOID = (SNMPObjectIdentifier)pair.getSNMPObjectAt(0);
// extract the corresponding value from the pair; it's the second element in the sequence
SNMPObject snmpValue = pair.getSNMPObjectAt(1);
// print out the String representation of the retrieved value
System.out.println("Thread " + threadIndex + ": Retrieved value: type " + snmpValue.getClass().getName() + ", value " + snmpValue.toString());
}
catch(Exception e)
{
System.out.println("Exception during SNMP operation: " + e + "\n");
}
}
}
}
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