oneblockoperation2.java

无线网络管理

// NAME
//      $RCSfile: OneBlockOperation2.java,v $
// DESCRIPTION
//      [given below in javadoc format]
// DELTA
//      $Revision: 1.5 $
// CREATED
//      $Date: 2006/11/30 17:44:55 $
// COPYRIGHT
//      Westhawk Ltd
// TO DO
//

/*
 * Copyright (C) 2000 - 2006 by Westhawk Ltd
 *
 * 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:[e-mail]">Tim Panton</a>
 */

package uk.co.westhawk.examplev3;

import uk.co.westhawk.snmp.stack.*;
import uk.co.westhawk.snmp.pdu.*;
import uk.co.westhawk.snmp.util.*;
import java.awt.*; 
import javax.swing.*;

import java.awt.event.*;

/**
 * <p>
 * The class OneBlockOperation2 demonstrates the use of the BlockPdu
 * class and the SnmpContextv3Pool class.
 * <p>
 *
 * </p>
 * The user can set the required OID and perform a Get or GetNext
 * request. The user can also set a MIB variable to a new String value
 * by performing a Set request.
 * </p>
 *
 * <p>
 * All parameters can be configured 
 * in the properties file. 
 * The name of the properties file can be passed as first argument to
 * this application. If there is no such argument, it will look for
 * <code>get_next.properties</code>. If this file does not exist, the
 * application will use default parameters.
 * </p>
 *
 * @see uk.co.westhawk.snmp.pdu.BlockPdu
 * @see uk.co.westhawk.snmp.stack.SnmpContextv3Pool
 * @see propertyDialog2
 *
 * @author <a href="mailto:[e-mail]">Birgit Arkesteijn</a>
 * @version $Revision: 1.5 $ $Date: 2006/11/30 17:44:55 $
 */
public class OneBlockOperation2 extends JComponent 
implements MouseListener, ActionListener
{
    private static final String     version_id =
        "@(#)$Id: OneBlockOperation2.java,v 1.5 2006/11/30 17:44:55 birgit Exp $ Copyright Westhawk Ltd";

    public final static String sysContact = "1.3.6.1.2.1.1.4.0";

    private GridBagLayout gridBagLayout1 = new GridBagLayout();
    private GridLayout gridLayout1 = new GridLayout();
    private JPanel buttonPanel = new JPanel();
    private JLabel oidLabel = new JLabel();
    private JLabel valueLabel = new JLabel();
    private JLabel messageLabel = new JLabel();
    private JTextField oidText = new JTextField();
    private JTextField valueText = new JTextField();
    private JButton setButton = new JButton();
    private JButton getNextButton = new JButton();
    private JButton getButton = new JButton();

    private propertyDialog2 propDialog;
    private JFrame myFrame;


    private SnmpContextv3Pool context;
    private BlockPdu pdu;
    private Util        util;


/**
 * Constructor.
 *
 * @param propertiesFilename The name of the properties file. Can be
 * null.
 */
public OneBlockOperation2(String propertiesFilename)
{
    util = new Util(propertiesFilename, this.getClass().getName());

    try
    {
        //AsnObject.setDebug(11);
        AsnObject.setDebug(1);
        jbInit();
    }
    catch(Exception exc)
    {
        exc.printStackTrace();
        setErrorMessage("Exception: " + exc.getMessage());
    }
}

public void init()
{
    createPropertyDialog();
    propDialog.setVisible(true);
    propDialog.toFront();

    String oid = util.getOid(sysContact);
    oidText.setText(oid);

    createContext();
    //sendGetRequest(oidText.getText());
}

private void jbInit() throws Exception
{
    oidLabel.setText("OID:");
    this.setLayout(gridBagLayout1);
    valueLabel.setText("Value:");
    oidText.setColumns(15);
    valueText.setColumns(15);
    buttonPanel.setLayout(gridLayout1);
    gridLayout1.setColumns(3);
    setButton.setText("Set");
    setButton.addActionListener(this);
    getNextButton.setText("GetNext");
    getNextButton.addActionListener(this);
    getButton.setText("Get");
    getButton.addActionListener(this);
    messageLabel.setText(" ");
    messageLabel.setBackground(Color.white);
    messageLabel.setOpaque(true);
    this.addMouseListener(this);
    this.add(oidLabel, propertyDialog2.getGridBagConstraints2(0, 0, 1, 1, 0.5, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL, new Insets(0, 0, 0, 0), 0, 0));
    this.add(valueLabel, propertyDialog2.getGridBagConstraints2(0, 1, 1, 1, 0.5, 0.0
            ,GridBagConstraints.WEST, GridBagConstraints.HORIZONTAL, new Insets(0, 0, 0, 0), 0, 0));
    this.add(oidText, propertyDialog2.getGridBagConstraints2(1, 0, 1, 1, 0.5, 0.0
            ,GridBagConstraints.WEST, GridBagConstraints.HORIZONTAL, new Insets(0, 0, 0, 0), 0, 0));
    this.add(valueText, propertyDialog2.getGridBagConstraints2(1, 1, 1, 1, 0.5, 0.0
            ,GridBagConstraints.WEST, GridBagConstraints.HORIZONTAL, new Insets(0, 0, 0, 0), 0, 0));
    this.add(buttonPanel, propertyDialog2.getGridBagConstraints2(0, 2, 2, 1, 1.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL, new Insets(5, 5, 5, 5), 0, 0));
    buttonPanel.add(setButton, null);
    buttonPanel.add(getButton, null);
    buttonPanel.add(getNextButton, null);
    this.add(messageLabel, propertyDialog2.getGridBagConstraints2(0, 3, 2, 1, 1.0, 0.0
            ,GridBagConstraints.WEST, GridBagConstraints.HORIZONTAL, new Insets(0, 0, 0, 0), 0, 0));
}

/**
 * Creates a new Pdu and send a request.
 */
public void actionPerformed(ActionEvent evt)
{
    Object src = evt.getSource();
    try
    {
        if (src == propDialog)
        {
            propDialog_actionPerformed(evt);
        }
        else if (context != null)
        {
            pdu = new BlockPdu(context);
            String oid = oidText.getText();
            if (src == getButton)
            {
                pdu.setPduType(BlockPdu.GET);
                pdu.addOid(oid);
            }
            else if (src == getNextButton)
            {
                pdu.setPduType(BlockPdu.GETNEXT);
                pdu.addOid(oid);
            }
            else if (src == setButton)
            {
                pdu.setPduType(BlockPdu.SET);
                pdu.addOid(oid, new AsnOctets(valueText.getText()));
            }
            sendRequest(pdu);
        }
    }
    catch (Exception exc)
    {
        exc.printStackTrace();
        setErrorMessage("Exception: " + exc.getMessage());
    }
}

void propDialog_actionPerformed(ActionEvent evt)
{
    String cmd = evt.getActionCommand();
    if (cmd.equals("Cancel") == false)
    {
        createContext();
        if (context != null)
        {
            sendGetRequest(oidText.getText());
        }
    }
    else
    {
        //System.exit(0);
    }
}


public void mouseClicked(MouseEvent evt)
{
}
public void mouseEntered(MouseEvent evt)
{
}
public void mouseExited(MouseEvent evt)
{
}
public void mousePressed(MouseEvent evt)
{
    mouseEvt(evt);
}
public void mouseReleased(MouseEvent evt)
{
    mouseEvt(evt);
}

/**
 * Will popup the property dialog if the popup menu button was
 * triggered.
 */
public void mouseEvt(MouseEvent evt)
{
    if (evt.isPopupTrigger())
    {
        propDialog.setVisible(true);
        propDialog.toFront();
        evt.consume();
    }
}

public void setErrorMessage(String message)
{
    setMessage(message, true);
}

public void setMessage(String message)
{
    setMessage(message, false);
}

public void setMessage(String message, boolean isError)
{
    messageLabel.setText(message);
    Color c = Color.white;
    if (isError)
    {
        c = Color.red;
    }
    messageLabel.setBackground(c);
}

private void createPropertyDialog()
{
    myFrame = getFrame(this);
    propDialog = new propertyDialog2(myFrame, util);

    propDialog.addActionListener(this);
    propDialog.pack();
}


public static JFrame getFrame(Component c)
{
    if(c instanceof JFrame)
        return (JFrame)c;
 
    while((c = c.getParent()) != null)
    {
        if(c instanceof JFrame)
            return (JFrame)c;
    }
    return null;
}

private void createContext()
{

    String host = propDialog.getHost();
    String portStr = propDialog.getPort();
    int port = SnmpContextBasisFace.DEFAULT_PORT;
    try
    {
        port = Integer.valueOf(portStr).intValue();
    }
    catch (NumberFormatException exc) { }
    String socketType = propDialog.getSocketType();

    byte [] contextEngineId = propDialog.getContextEngineId();
    String contextName = propDialog.getContextName();
    String userName = propDialog.getUserName();

    boolean useAuthentication = propDialog.isAuthentication();
    String userAuthPassw = propDialog.getUserAuthPassw();
    int protocol = propDialog.getProtocol();

    boolean usePrivacy = propDialog.isPrivacy();
    String userPrivPassw = propDialog.getUserPrivPassw();

    myFrame.setTitle("One Block Operation - " + host);

    if (context != null)
    {
        context.destroy();
    }
    try
    {
        context = new SnmpContextv3Pool(host, port, socketType);
        context.setContextEngineId(contextEngineId);
        context.setContextName(contextName);
        context.setUserName(userName);
        context.setUseAuthentication(useAuthentication);
        context.setUserAuthenticationPassword(userAuthPassw);
        context.setAuthenticationProtocol(protocol);
        context.setUsePrivacy(usePrivacy);
        context.setUserPrivacyPassword(userPrivPassw);
    }
    catch (java.io.IOException exc)
    {
        exc.printStackTrace();
        setErrorMessage("IOException: " + exc.getMessage());
        context = null;
    }
}

private void sendGetRequest(String oid)
{
    pdu = new BlockPdu(context);
    pdu.setPduType(BlockPdu.GET);
    pdu.addOid(oid);
    sendRequest(pdu);
}

private void sendRequest(BlockPdu pdu)
{
    setButton.setEnabled(false);
    getButton.setEnabled(false);
    getNextButton.setEnabled(false);
    setMessage("Sending request ..: ");
    try
    {
        varbind var = pdu.getResponseVariableBinding();
        AsnObjectId oid = var.getOid();
        AsnObject res = var.getValue();
        if (res != null)
        {
            oidText.setText(oid.toString());
            valueText.setText(res.toString());
            setMessage("Received aswer.");
        }
        else
        {
            setErrorMessage("Received no aswer.");
        }
    }
    catch (PduException exc)
    {
        exc.printStackTrace();
        setErrorMessage("PduException: " + exc.getMessage());
    }
    catch (java.io.IOException exc)
    {
        exc.printStackTrace();
        setErrorMessage("IOException: " + exc.getMessage());
    }
    setButton.setEnabled(true);
    getButton.setEnabled(true);
    getNextButton.setEnabled(true);
}

public static void main(String[] args)
{
    String propFileName = null;
    if (args.length > 0)
    {
        propFileName = args[0];
    }
    OneBlockOperation2 application = new OneBlockOperation2(propFileName);

    JFrame frame = new JFrame();
    frame.setTitle(application.getClass().getName());
    frame.getContentPane().add(application, BorderLayout.CENTER);

    frame.addWindowListener(new WindowAdapter()
    {
        public void windowClosing(WindowEvent e)
        {
            System.exit(0);
        }
    });
    frame.setBounds(50, 50, 450, 100);
    frame.setVisible(true);

    application.init();
}

}