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/*
Jazzy - a Java library for Spell Checking
Copyright (C) 2001 Mindaugas Idzelis
Full text of license can be found in LICENSE.txt

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
package com.swabunga.spell.engine;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.Properties;

/**
 * Implementation class to read the properties controlling the spell engine. The
 * properties are read form the configuration.properties file.
 * 
 * @author aim4min
 */
public class PropertyConfiguration extends Configuration {

    /**
     * The persistent set of properties supported by the spell engine
     */
    public Properties prop;
    /**
     * The name of the file containing spell engine properties
     */
    public URL filename;

    /**
     * Constructs and loads spell engine properties configuration.
     */
    public PropertyConfiguration() {
        prop = new Properties();
        try {
            filename = getClass().getClassLoader().getResource(
                    "com/swabunga/spell/engine/configuration.properties");
            InputStream in = filename.openStream();
            prop.load(in);
        } catch (Exception e) {
            System.out.println("Could not load Properties file :\n" + e);
        }
    }

    /**
     * @see com.swabunga.spell.engine.Configuration#getBoolean(String)
     */
    public boolean getBoolean(String key) {
        return new Boolean(prop.getProperty(key)).booleanValue();
    }

    /**
     * @see com.swabunga.spell.engine.Configuration#getInteger(String)
     */
    public int getInteger(String key) {
        return new Integer(prop.getProperty(key)).intValue();
    }

    /**
     * @see com.swabunga.spell.engine.Configuration#setBoolean(String, boolean)
     */
    public void setBoolean(String key, boolean value) {
        String string = null;
        if (value)
            string = "true";
        else
            string = "false";

        prop.setProperty(key, string);
        save();
    }

    /**
     * @see com.swabunga.spell.engine.Configuration#setInteger(String, int)
     */
    public void setInteger(String key, int value) {
        prop.setProperty(key, Integer.toString(value));
        save();
    }

    /**
     * Writes the property list (key and element pairs) in the
     * PropertyConfiguration file.
     */
    public void save() {
        try {
            File file = new File(filename.getFile());
            FileOutputStream fout = new FileOutputStream(file);
            prop.store(fout, "HEADER");
        } catch (FileNotFoundException e) {
        } catch (IOException e) {
        }
    }

}