// NAME//      $RCSfile: OneIntPdu.java,v $// DESCRIPTION//      [given below in javadoc format]// DELTA//      $Revision: 3.14 $// CREATED//      $Date: 2006/11/29 16:12:50 $// COPYRIGHT//      Westhawk Ltd// TO DO///* * Copyright (C) 1995, 1996 by West Consulting BV * * Permission to use, copy, modify, and distribute this software * for any purpose and without fee is hereby granted, provided * that the above copyright notices appear in all copies and that * both the copyright notice and this permission notice appear in * supporting documentation. * This software is provided "as is" without express or implied * warranty. * author <a href="mailto:snmp@westhawk.co.uk">Tim Panton</a> *//* * Copyright (C) 1996 - 2006 by Westhawk Ltd * <a href="www.westhawk.co.uk">www.westhawk.co.uk</a> * * Permission to use, copy, modify, and distribute this software * for any purpose and without fee is hereby granted, provided * that the above copyright notices appear in all copies and that * both the copyright notice and this permission notice appear in * supporting documentation. * This software is provided "as is" without express or implied * warranty. * author <a href="mailto:snmp@westhawk.co.uk">Tim Panton</a> */ package uk.co.westhawk.snmp.pdu;import uk.co.westhawk.snmp.stack.*;import java.util.*;/** * <p> * The OneIntPdu class will ask for one (1) object (oid) of the  * AsnInteger type, based on the Get request. * </p> * * <p> * Unless an exception occurred the Object to the update() method of the * Observer will be an Integer. * In the case of an exception, that exception will be passed. * </p> * * <p> * For SNMPv3: The receiver of a request PDU acts as the authoritative engine. * </p> * * @see GetPdu_vec * * @author <a href="mailto:snmp@westhawk.co.uk">Birgit Arkesteijn</a> * @version $Revision: 3.14 $ $Date: 2006/11/29 16:12:50 $ */public class OneIntPdu extends GetPdu {    private static final String     version_id =        "@(#)$Id: OneIntPdu.java,v 3.14 2006/11/29 16:12:50 birgit Exp $ Copyright Westhawk Ltd";    Integer value;    /**     * Constructor.     *     * @param con The context of the request     */    public OneIntPdu(SnmpContextBasisFace con)     {        super(con);    }    /**     * Constructor that will send the request immediately. No Observer     * is set.     *     * @param con the SnmpContextBasisFace     * @param oid the oid      */    public OneIntPdu(SnmpContextBasisFace con, String oid)     throws PduException, java.io.IOException    {        this(con, oid, null);    }    /**     * Constructor that will send the request immediately.      *     * @param con the SnmpContextBasisFace     * @param oid the oid      * @param o the Observer that will be notified when the answer is received     */    public OneIntPdu(SnmpContextBasisFace con, String oid, Observer o)     throws PduException, java.io.IOException    {        super(con);        if (o != null)         {            addObserver(o);        }        addOid(oid);        send();    }    /**     * Returns the value (the answer) of this request.     *     * @return the value     */    public Integer getValue()    {        return value;    }    /**     * The value of the request is set. This will be called by     * Pdu.fillin().     *     * @param n the index of the value     * @param res the value     * @see Pdu#new_value      */    protected void new_value(int n, varbind res)      {        AsnObject val = res.getValue();        if (val instanceof AsnInteger)        {            AsnInteger va = (AsnInteger) res.getValue();            if (n == 0)             {                value = new Integer(va.getValue());            }        }        else        {            value = null;        }    }    /**     * This method notifies all observers.      * This will be called by Pdu.fillin().     *      * <p>     * Unless an exception occurred the Object to the update() method of the     * Observer will be an Integer.     * In the case of an exception, that exception will be passed.     * </p>     */    protected void tell_them()      {        notifyObservers(value);    }}