home | career | drupal | java | mac | mysql | perl | scala | uml | unix  

What this is

This file is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Other links

The source code


package com.ice.syslogd;

import com.ice.syslog.SyslogDefs;
import com.ice.util.UserProperties;
import com.ice.util.AWTUtilities;
import com.ice.widget.BorderPanel;

import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.util.*;


public class
StdDisplayFrame extends Frame
		implements ActionListener, ItemListener,
					SyslogDisplayInterface, WindowListener
	{
	public static final String		RCS_ID = "$Id: StdDisplayFrame.java,v 1.1.1.1 1998/02/22 05:47:54 time Exp $";
	public static final String		RCS_REV = "$Revision: 1.1.1.1 $";
	public static final String		RCS_NAME = "$Name:  $";

	private static final String		DEFAULT_FIELD_LIST = "TFPHNIM";

	protected Vector		logBuffer;
	protected int			logBufferSize;

	protected MenuBar		mBar;
	protected Menu			mFile;
	protected List			msgList;

	protected String			fieldList;

	protected boolean			showFacility;
	protected boolean			showPriority;
	protected boolean			showTimestamp;
	protected boolean			showHostname;
	protected boolean			showProcessName;
	protected boolean			showProcessId;
	protected boolean			showMessage;

	protected CheckboxMenuItem	menuItemF;
	protected CheckboxMenuItem	menuItemP;
	protected CheckboxMenuItem	menuItemT;
	protected CheckboxMenuItem	menuItemH;
	protected CheckboxMenuItem	menuItemN;
	protected CheckboxMenuItem	menuItemI;
	protected CheckboxMenuItem	menuItemM;


	public
	StdDisplayFrame()
		{
		super();
		this.logBufferSize = 0;
		this.logBuffer = null;

		this.showFacility = true;
		this.showPriority = true;
		this.showTimestamp = true;
		this.showHostname = true;
		this.showProcessName = true;
		this.showProcessId = true;
		this.showMessage = true;

		this.fieldList = StdDisplayFrame.DEFAULT_FIELD_LIST;		
		}

    public void
    itemStateChanged( ItemEvent event )
        {
		boolean		redisplay = false;

		if ( event.getItemSelectable() == this.menuItemM )
			{
			redisplay = true;
			this.showMessage = this.menuItemM.getState();
			}
		else if ( event.getItemSelectable() == this.menuItemF )
			{
			redisplay = true;
			this.showFacility = this.menuItemF.getState();
			}
		else if ( event.getItemSelectable() == this.menuItemP )
			{
			redisplay = true;
			this.showPriority = this.menuItemP.getState();
			}
		else if ( event.getItemSelectable() == this.menuItemT )
			{
			redisplay = true;
			this.showTimestamp = this.menuItemT.getState();
			}
		else if ( event.getItemSelectable() == this.menuItemN )
			{
			redisplay = true;
			this.showProcessName = this.menuItemN.getState();
			}
		else if ( event.getItemSelectable() == this.menuItemI )
			{
			redisplay = true;
			this.showProcessId = this.menuItemI.getState();
			}
		else if ( event.getItemSelectable() == this.menuItemH )
			{
			redisplay = true;
			this.showHostname = this.menuItemH.getState();
			}

		if ( redisplay )
			{
			this.redisplayList();
			}
		}

	public void
	redisplayList()
		{
		this.msgList.setVisible( false );

		this.msgList.removeAll();

		int size = this.logBuffer.size();

		for ( int i = 0 ; i < size ; ++i )
			{
			String itemStr =
				this.getLogMessage( i );

			this.msgList.addItem( itemStr, i );
			}

		this.msgList.setVisible( true );
		}

    public void
    actionPerformed( ActionEvent event )
        {
	    String command = event.getActionCommand();
		
		if ( command.equals( "HIDE" ) )
			{
			this.hideDisplay();
			}
        }

	private void
	establishMenuBar()
		{
        MenuItem	mItem;

		this.mBar = new MenuBar();

		this.mFile = new Menu( "File", true );
		this.mBar.add( this.mFile );

        mItem = new MenuItem( "Hide Display" );
        mItem.setActionCommand( "HIDE" );
        mItem.addActionListener( this );
	    this.mFile.add( mItem );

		this.addAdditionalMenus( mBar );

		this.setMenuBar( this.mBar );
		}

	public void
	addAdditionalMenus( MenuBar menuBar )
		{
        CheckboxMenuItem	mItem;

		Menu methodMenu = new Menu( "Fields", true );
		this.mBar.add( methodMenu );

		this.fieldList = fieldList;
		int len = fieldList.length();
		
		for ( int fIdx = 0 ; fIdx < len ; ++fIdx )
			{
			mItem = null;
			char ch = this.fieldList.charAt( fIdx );

			switch ( ch )
				{
				case 'F': case 'f':
					mItem = new CheckboxMenuItem( "Facility" );
					mItem.setActionCommand( "FAC" );
					this.menuItemF = mItem;
					break;
				case 'P': case 'p':
					mItem = new CheckboxMenuItem( "Priority" );
					mItem.setActionCommand( "PRI" );
					this.menuItemP = mItem;
					break;
				case 'T': case 't':
					mItem = new CheckboxMenuItem( "Timestamp" );
					mItem.setActionCommand( "STAMP" );
					this.menuItemT = mItem;
					break;
				case 'H': case 'h':
					mItem = new CheckboxMenuItem( "Hostname" );
					mItem.setActionCommand( "HOST" );
					this.menuItemH = mItem;
					break;
				case 'N': case 'n':
					mItem = new CheckboxMenuItem( "ProcessName" );
					mItem.setActionCommand( "NAME" );
					this.menuItemN = mItem;
					break;
				case 'I': case 'i':
					mItem = new CheckboxMenuItem( "ProcessID" );
					mItem.setActionCommand( "ID" );
					this.menuItemI = mItem;
					break;
				case 'M': case 'm':
					mItem = new CheckboxMenuItem( "Message" );
					mItem.setActionCommand( "MSG" );
					this.menuItemM = mItem;
					break;
				}

			if ( mItem != null )
				{
				mItem.setState( Character.isUpperCase( ch ) );
				mItem.addItemListener( this );
				methodMenu.add( mItem );
				}
			}
		}

	public void
	setFieldList( String fieldList )
		{
		if ( fieldList == null
				|| fieldList.equals( "*" ) )
			this.fieldList = StdDisplayFrame.DEFAULT_FIELD_LIST;
		else
			this.fieldList = fieldList;

		int len = fieldList.length();
		for ( int fIdx = 0 ; fIdx < len ; ++fIdx )
			{
			char ch = this.fieldList.charAt( fIdx );
			switch ( ch )
				{
				case 'F': case 'f':
					this.showFacility = Character.isUpperCase( ch );
					break;
				case 'P': case 'p':
					this.showPriority = Character.isUpperCase( ch );
					break;
				case 'T': case 't':
					this.showTimestamp = Character.isUpperCase( ch );
					break;
				case 'H': case 'h':
					this.showHostname = Character.isUpperCase( ch );
					break;
				case 'N': case 'n':
					this.showProcessName = Character.isUpperCase( ch );
					break;
				case 'I': case 'i':
					this.showProcessId = Character.isUpperCase( ch );
					break;
				case 'M': case 'm':
					this.showMessage = Character.isUpperCase( ch );
					break;
				}
			}
		}

	public void
	openDisplay(
			String title, int bufLength,
			int x, int y, int w, int h,
			String[] parameters )
		{
		this.logBufferSize = bufLength;
		this.logBuffer =
			new Vector( this.logBufferSize );

		if ( parameters != null && parameters.length > 0 )
			this.setFieldList( parameters[0] );

		this.setTitle( title );

		this.establishMenuBar();

		this.setMenuBar( this.mBar );

		this.establishMenuBar();

		this.establishContents();

		if ( parameters != null && parameters.length > 2 )
			{
			Font listFont =
				com.ice.util.AWTUtilities.getFont( parameters[2] );

			if ( listFont != null )
				{
				this.msgList.setFont( listFont );
				}
			}

		this.setLocation( x, y );

		this.setSize( w, h );

        if ( parameters != null )
            {
    		if ( parameters.length < 2 )
    			{
    			this.show();
    			}
    		else if ( parameters[1].equalsIgnoreCase( "visible" ) )
    			{
    			this.show();
    			}
    		}

		this.addWindowListener( this );
		}
	
	public void
	closeDisplay()
		{
		this.dispose();
		}

	public void
	bringToFront()
		{
		this.show();
		this.toFront();
		}

	public void
	sendToBack()
		{
		this.show();
		this.toBack();
		}

	public void
	hideDisplay()
		{
		this.setVisible( false );
		}

	public void
	showDisplay()
		{
		this.setVisible( true );
		}

	public void
	restart()
		{
		}

	private String
	getLogMessage( int index )
		{
		SyslogMessage logMsg = (SyslogMessage)
				this.logBuffer.elementAt( index );

		if ( logMsg != null )
			{
			StringBuffer buf = new StringBuffer();

			int length = this.fieldList.length();
			for ( int fIdx = 0 ; fIdx < length ; ++fIdx )
				{
				String seper = "";

				char ch = this.fieldList.charAt( fIdx );

				switch ( ch )
					{
					case 'F': case 'f':
						if ( this.showFacility )
							{
							seper = " ";
							buf.append( SyslogDefs.getFacilityName
												( logMsg.facility ) );
							}
						break;

					case 'P': case 'p':
						if ( this.showPriority )
							{
							seper = " ";
							buf.append( SyslogDefs.getPriorityName
												( logMsg.priority ) );
							}
						break;

					case 'H': case 'h':
						if ( this.showHostname )
							{
							seper = " ";
							buf.append( logMsg.hostName );
							}
						break;

					case 'M': case 'm':
						if ( this.showMessage )
							{
							seper = " ";
							buf.append( logMsg.message );
							}
						break;

					case 'N': case 'n':
						if ( this.showProcessName )
							{
							seper = " ";
							buf.append( logMsg.processName );
							}
						break;

					case 'I': case 'i':
						if ( this.showProcessId )
							{
							seper = " ";
							buf.append( "[" );
							buf.append( logMsg.processId );
							buf.append( "]" );
							}
						break;

					case 'T': case 't':
						if ( this.showTimestamp )
							{
							seper = " ";
							buf.append( logMsg.timestamp );
							}
						break;
					}

				buf.append( seper );
				}
			
			return buf.toString();
			}
		else
			{
			return "ERROR null logMsg at '" + index + "'";
			}
		}

	public void
	processMessage( SyslogMessage logMsg )
		{
		this.logBuffer.insertElementAt( logMsg, 0 );

		String itemStr =
			this.getLogMessage( 0 );

		this.msgList.addItem( itemStr, 0 );

		if ( this.logBuffer.size() > this.logBufferSize )
			{
			this.logBuffer.removeElementAt
				( this.logBuffer.size() - 1 );
			}
		if ( this.msgList.getItemCount() > this.logBufferSize )
			{
			this.msgList.delItem
				( this.msgList.getItemCount() - 1 );
			}
		}

	public void
	windowOpened(WindowEvent e)
		{
		}

	public void
	windowClosing(WindowEvent e)
		{
		this.hideDisplay();
		}

	public void
	windowClosed(WindowEvent e)
		{
		}

	public void
	windowActivated(WindowEvent e)
		{
		}

	public void
	windowDeactivated(WindowEvent e)
		{
		}

	public void
	windowIconified(WindowEvent e)
		{
		}

	public void
	windowDeiconified(WindowEvent e)
		{
		}


	public void
	establishContents()
		{
		int			row;
		Label		lbl;
		Panel		pan;
		int			cols, rows;
		String		title;

		Color backColor =
			UserProperties.getColor(
				"stdDisplayWindow.bg",
				new Color( 200, 215, 250 ) );
		this.setBackground( backColor );

		Font textFont =
			UserProperties.getFont(
				"stdDisplayWindow.text.font",
				new Font( "Serif", Font.PLAIN, 14 ) );
		Font labelFont =
			UserProperties.getFont(
				"stdDisplayWindow.labels.font",
				new Font( "Serif", Font.BOLD, 14 ) );
		Font listFont =
			UserProperties.getFont(
				"stdDisplayWindow.list.font",
				new Font( "Serif", Font.PLAIN, 14 ) );

		this.setLayout( new GridBagLayout() );

		pan = new BorderPanel( 5, 2, 2, BorderPanel.RIDGE );
		pan.setLayout( new GridBagLayout() );
		AWTUtilities.constrain(
			this, pan,
			GridBagConstraints.BOTH,
			GridBagConstraints.CENTER,
			0, 0, 1, 1, 1.0, 1.0 );

		this.msgList = new List();
		this.msgList.setFont( listFont );
		AWTUtilities.constrain(
			pan, this.msgList,
			GridBagConstraints.BOTH,
			GridBagConstraints.CENTER,
			0, 0, 1, 1, 1.0, 1.0 );
		}
	}


my book on functional programming

 

new blog posts

 

Copyright 1998-2019 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.