TarTool example source code file (DynamicConfig.java)

This example TarTool source code file (DynamicConfig.java) 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.

Java - TarTool tags/keywords

awt, dynamicconfig, file, file, io, ioexception, properties, rectangle, rectangle, string, string, stringbuffer, stringbuffer, util, vector

The TarTool DynamicConfig.java source code

/*
** Copyright (c) 1998 by Timothy Gerard Endres
** <mailto:time@ice.com>  
** 
** This program is free software.
** 
** You may redistribute it and/or modify it under the terms of the GNU
** General Public License as published by the Free Software Foundation.
** Version 2 of the license should be included with this distribution in
** the file LICENSE, as well as License.html. If the license is not
** included	with this distribution, you may find a copy at the FSF web
** site at 'www.gnu.org' or 'www.fsf.org', or you may write to the
** Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139 USA.
**
** THIS SOFTWARE IS PROVIDED AS-IS WITHOUT WARRANTY OF ANY KIND,
** NOT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY. THE AUTHOR
** OF THIS SOFTWARE, ASSUMES _NO_ RESPONSIBILITY FOR ANY
** CONSEQUENCE RESULTING FROM THE USE, MODIFICATION, OR
** REDISTRIBUTION OF THIS SOFTWARE. 
** 
*/

package com.ice.util;

import java.io.*;
import java.awt.*;
import java.awt.Dimension;
import java.util.TimeZone;
import java.util.Properties;
import java.util.Vector;

import com.ice.util.UserProperties;
import com.ice.util.ResourceUtilities;


public abstract class
DynamicConfig
	{
	protected String		name = null;
	protected File			homeDir = null;
	protected Properties	workingProps = null;


	public
	DynamicConfig( String name )
		{
		this.name = name;
		this.workingProps = new Properties();
		this.determineHomeDirectory();
		}

	public String
	getName()
		{
		return this.name;
		}

	public void
	saveProperties()
		throws IOException
		{
		UserProperties.saveDynamicProperties( this.name );
		}

	public void
	setProperty( String propName, boolean value )
		{
		UserProperties.setDynamicProperty
			( this.name, propName,
				( value ? "true" : "false" ) );
		}

	public void
	setProperty( String propName, int value )
		{
		UserProperties.setDynamicProperty
			( this.name, propName, ""+value );
		}

	public void
	setProperty( String propName, String value )
		{
		UserProperties.setDynamicProperty
			( this.name, propName, value );
		}

	public void
	removeProperty( String propName )
		{
		UserProperties.removeDynamicProperty( this.name, propName );
		}

	public void
	setStringArray( String propName, String[] strArray )
		{
		StringBuffer buf = new StringBuffer();
		for ( int idx = 0 ; idx < strArray.length ; ++idx )
			{
			buf.append( strArray[idx] );
			if ( idx < (strArray.length - 1) )
				buf.append( ":" );
			}

		UserProperties.setDynamicProperty
			( this.name, propName, buf.toString() );
		}

	public void
	setStringArray( String propName, Vector strArray )
		{
		int size = strArray.size();
		StringBuffer buf = new StringBuffer();
		for ( int idx = 0 ; idx < size ; ++idx )
			{
			buf.append( (String) strArray.elementAt(idx) );
			if ( idx < (size - 1) )
				buf.append( ":" );
			}

		UserProperties.setDynamicProperty
			( this.name, propName, buf.toString() );
		}

	public File
	getHomeDirectory()
		{
		return this.homeDir;
		}

	public Rectangle
	getBounds( String propName, Rectangle defBounds )
		{
		this.workingProps.clear();

		Rectangle result = new Rectangle();
		defBounds.x =
			UserProperties.getProperty
				( propName + ".x", defBounds.x );
		defBounds.y =
			UserProperties.getProperty
				( propName + ".y", defBounds.y );
		defBounds.width =
			UserProperties.getProperty
				( propName + ".width", defBounds.width );
		defBounds.height =
			UserProperties.getProperty
				( propName + ".height", defBounds.height );

		return defBounds;
		}

	public void
	saveBounds( String propName, Rectangle bounds )
		{
		this.saveBounds
			( propName, bounds.x, bounds.y,
				bounds.width, bounds.height );
		}

	public void
	saveBounds( String propName, int x, int y, int w, int h )
		{
		this.workingProps.clear();

		this.workingProps.put( propName + ".x", ""+x );
		this.workingProps.put( propName + ".y", ""+y );
		this.workingProps.put( propName + ".width", ""+w );
		this.workingProps.put( propName + ".height", ""+h );

		UserProperties.setDynamicProperties( this.name, this.workingProps );
		}

	public void
	saveLocation( String propName, int x, int y )
		{
		this.workingProps.clear();

		this.workingProps.put( propName + ".x", ""+x );
		this.workingProps.put( propName + ".y", ""+y );

		UserProperties.setDynamicProperties( this.name, this.workingProps );
		}

	public void
	saveSize( String propName, int w, int h )
		{
		this.workingProps.clear();

		this.workingProps.put( propName + ".width", ""+w );
		this.workingProps.put( propName + ".height", ""+h );

		UserProperties.setDynamicProperties( this.name, this.workingProps );
		}

	protected boolean
	isPropertySet( String propName )
		{
		boolean result = true;

		String propValue =
			UserProperties.getProperty( propName, null );

		if ( propValue == null )
			result = false;

		return result;
		}
	private void
	determineHomeDirectory()
		{
		String userDirName =
			System.getProperty( "user.home", null );

		if ( userDirName == null )
			{
			userDirName = System.getProperty( "user.dir", null );
			}

		if ( userDirName == null )
			{
			// REVIEW We are using a questionable algorithm here.
			this.homeDir =
				new File( (File.separatorChar == ':')
							? ":" : "." );
			}
		else
			{
			this.homeDir = new File( userDirName );
			}
		}
	}