net.alegen.easyhash.utils.Settings.java Source code

Introduction

Here is the source code for net.alegen.easyhash.utils.Settings.java

Source

/* 
 * EasyHash - command line utility for creating hashes
 * Copyright (C) 2013 Alexandru Geana (alegen)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 */

package net.alegen.easyhash.utils;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;

import org.jdom2.Document;
import org.jdom2.Element;
import org.jdom2.JDOMException;
import org.jdom2.input.SAXBuilder;
import org.jdom2.output.Format;
import org.jdom2.output.XMLOutputter;

public class Settings {

    private static Settings instance = null;

    public static Settings getInstance() {
        if (instance == null)
            instance = new Settings();
        return instance;
    }

    private Settings() {
    }

    public String algorithm;
    public boolean echo;
    public boolean tocb;
    public boolean caps;
    public int chain;
    public int resetTime;
    public String salt;

    public void load(String fileName) {
        try {
            Element root;
            root = new SAXBuilder().build(new File(fileName)).getRootElement();

            Element elemAlgorithm = root.getChild("algorithm");
            if (elemAlgorithm != null)
                this.algorithm = elemAlgorithm.getText();
            else
                this.algorithm = "md5";

            Element elemEcho = root.getChild("echo");
            if (elemEcho != null)
                this.echo = Boolean.parseBoolean(elemEcho.getText());
            else
                this.echo = true;

            Element elemToClipboard = root.getChild("to-clipboard");
            if (elemToClipboard != null)
                this.tocb = Boolean.parseBoolean(elemToClipboard.getText());
            else
                this.tocb = false;

            Element elemCaps = root.getChild("caps");
            if (elemCaps != null)
                this.caps = Boolean.parseBoolean(elemCaps.getText());
            else
                this.caps = false;

            Element elemChain = root.getChild("chain");
            if (elemChain != null)
                this.chain = Integer.parseInt(elemChain.getText());
            else
                this.chain = 1;

            Element elemResetTime = root.getChild("reset-time");
            if (elemResetTime != null)
                this.resetTime = Integer.parseInt(elemResetTime.getText());
            else
                this.resetTime = 10;

            Element elemSalt = root.getChild("salt");
            if (elemSalt != null)
                this.salt = elemSalt.getText();
            else
                this.salt = "";

            if (this.chain < 1)
                this.chain = 1;
        } catch (JDOMException ex) {
            System.out.println("eh > Settings file contains XML errors. Loading default values.");
            this.defaults();
        } catch (IOException ex) {
            System.out.println("eh > No settings file has been found. Loading default values.");
            this.defaults();
        }
    }

    public void save() {
        Element elemSettings = new Element("settings");
        Document doc = new Document(elemSettings);

        Element elemAlgorithm = new Element("algorithm");
        elemAlgorithm.addContent(this.algorithm);
        doc.getRootElement().addContent(elemAlgorithm);

        Element elemEcho = new Element("echo");
        elemEcho.addContent(String.valueOf(this.echo));
        doc.getRootElement().addContent(elemEcho);

        Element elemToClipboard = new Element("to-clipboard");
        elemToClipboard.addContent(String.valueOf(this.tocb));
        doc.getRootElement().addContent(elemToClipboard);

        Element elemCaps = new Element("caps");
        elemCaps.addContent(String.valueOf(this.caps));
        doc.getRootElement().addContent(elemCaps);

        Element elemChain = new Element("chain");
        elemChain.addContent(String.valueOf(this.chain));
        doc.getRootElement().addContent(elemChain);

        Element elemResetTime = new Element("reset-time");
        elemResetTime.addContent(String.valueOf(this.resetTime));
        doc.getRootElement().addContent(elemResetTime);

        Element elemSalt = new Element("salt");
        elemSalt.addContent(this.salt);
        doc.getRootElement().addContent(elemSalt);

        XMLOutputter xmlOutput = new XMLOutputter();
        xmlOutput.setFormat(Format.getPrettyFormat());
        try {
            xmlOutput.output(doc, new FileWriter("settings.eh.xml"));
        } catch (IOException ex) {
            System.out.println("eh > Could not save settings - " + ex.getMessage());
        }
    }

    private void defaults() {
        this.algorithm = "md5";
        this.echo = true;
        this.tocb = false;
        this.caps = false;
        this.chain = 1;
        this.resetTime = 10;
        this.salt = "";
    }
}