org.qbroker.net

Class SimpleUdpTransportMapping

java.lang.Object

org.snmp4j.transport.AbstractTransportMapping

org.snmp4j.transport.UdpTransportMapping

org.snmp4j.transport.DefaultUdpTransportMapping

org.qbroker.net.SimpleUdpTransportMapping

All Implemented Interfaces:

java.util.EventListener, org.snmp4j.CommandResponder, org.snmp4j.TransportMapping

public class SimpleUdpTransportMapping
extends org.snmp4j.transport.DefaultUdpTransportMapping
implements org.snmp4j.CommandResponder

SimpleUdpTransportMapping extends the SNMP4J Default UDP transport mapping and implements CommandResponder for listening on the inbound socket. It has a method of receive() which returns an array of strings with first two members of type and address. It should be used only if the listener is not running. It requires Java 1.4 or above.

Author:

Yannanlu@yahoo.com

Field Summary

Fields inherited from class org.snmp4j.transport.DefaultUdpTransportMapping

listener, socket

Fields inherited from class org.snmp4j.transport.UdpTransportMapping

udpAddress

Fields inherited from class org.snmp4j.transport.AbstractTransportMapping

asyncMsgProcessingSupported, maxInboundMessageSize, transportListener

Constructor Summary

Constructors

Constructor and Description
SimpleUdpTransportMapping()
SimpleUdpTransportMapping(org.snmp4j.smi.UdpAddress udpAddress)

Method Summary

Modifier and Type	Method and Description
void	processPdu(org.snmp4j.CommandResponderEvent e) It is the default callback method for processing incoming request, report and notification PDU.
java.lang.String[]	receive(java.net.DatagramPacket packet) It receives an SNMP packet and invokes the callback method to process it.

Methods inherited from class org.snmp4j.transport.DefaultUdpTransportMapping

close, getPriority, getReceiveBufferSize, getSocketTimeout, getThreadName, isListening, listen, sendMessage, setMaxInboundMessageSize, setPriority, setReceiveBufferSize, setSocketTimeout, setThreadName

Methods inherited from class org.snmp4j.transport.UdpTransportMapping

getAddress, getListenAddress, getSupportedAddressClass

Methods inherited from class org.snmp4j.transport.AbstractTransportMapping

addMessageDispatcher, addTransportListener, fireProcessMessage, getMaxInboundMessageSize, isAsyncMsgProcessingSupported, removeMessageDispatcher, removeTransportListener, setAsyncMsgProcessingSupported

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SimpleUdpTransportMapping

public SimpleUdpTransportMapping()
                          throws java.io.IOException

Throws:

java.io.IOException

SimpleUdpTransportMapping

public SimpleUdpTransportMapping(org.snmp4j.smi.UdpAddress udpAddress)
                          throws java.io.IOException

Throws:

java.io.IOException

Method Detail

processPdu

public void processPdu(org.snmp4j.CommandResponderEvent e)

It is the default callback method for processing incoming request, report and notification PDU. It just resets the content with the data from the received PDU. It should be added as the CommandResponder to SNMP session.

Specified by:

processPdu in interface org.snmp4j.CommandResponder

receive

public java.lang.String[] receive(java.net.DatagramPacket packet)
                           throws java.io.IOException

It receives an SNMP packet and invokes the callback method to process it. Upon success, it returns an array of strings whose first two items are the peer address and the type of PDU. The rest of the array are the content in the form of "OID = value". In case of timeout, it returns an empty string array. In case of failure, it throws IOException or returns null.

Throws:

java.io.IOException