Main.java

package ca.pfv.spmf.gui;
/*
 * Copyright (c) 2008-2015 Philippe Fournier-Viger
 *
 * This file is part of the SPMF DATA MINING SOFTWARE
 * (http://www.philippe-fournier-viger.com/spmf).
 *
 * SPMF 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.
 *
 * SPMF 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
 * SPMF. If not, see <http://www.gnu.org/licenses/>.
 */
import java.lang.reflect.Method;

/**
 * This is a simple user interface to run the main algorithms in SPMF.
 * 
 * @author Philippe Fournier-Viger
 */
public class Main {

    // variable for the current version of SPMF
    public static String SPMF_VERSION = "0.96r15";
    
    /**
     * Method to launch the software. If there are command line arguments, it
     * means that the software is launched from the command line. Otherwise,
     * this method launches the graphical user interface.
     *
     * @param args command line arguments.
     */
    public static void main(String[] args) {
    	// The following commented lines of code are to be used for debugging purposes:
		//args = new String[]{"run", "SPADE", "C:\\Users\\ph\\Desktop\\SPMF\\test_files\\contextPrefixSpan.txt", "output.txt",  "50%", "100"};
//C:\Users\ph\Desktop\SPMF\test_files
//		System.out.println("Command " + Arrays.toString(args));
        
    	// If there are command line arguments, we don't launch
        // the user interface. It means that the user is using
        // the command line.
        if (args.length != 0) {
        	// process command line arguments.
        	processCommandLineArguments(args); 
        } else {
            // Else, we launch the graphical user interface.
        	MainWindow mainWindow = new MainWindow();
        	mainWindow.setVisible(true);
        }
    }
    
    /**
     * This method process the command line arguments when the spmf.jar file is
     * called from the command line.
     *
     * @param args command line arguments.
     */
    public static void processCommandLineArguments(String[] args) {
        //java -Xmx1024m -jar spmfGUIv090b.jar run PrefixSpan /home/ph/Bureau/contextPrefixSpan.txt /home/ph/Bureau/test3.txt 60%
        //java -Xmx1024m -jar spmfGUIv090b.jar run PrefixSpan contextPrefixSpan.txt test3.txt 60%
//		System.out.println(" \n\n-- SPMF version " + SPMF_VERSION + " --\n\n");

        // "version" --> show the current version
        if ("version".equals(args[0])) {
            System.out.println(" \n-- SPMF version " + SPMF_VERSION + " --\n");
        } // "help" --> show the link to read the documentation
        else if ("help".equals(args[0])) {
            System.out.println("\n\nFor help, please check the documentation section of the SPMF website: http://philippe-fournier-viger.com/spmf/ \n\n");
        } //"run" -->  the user wants to run an algorithm
        else if ("run".equals(args[0])) {
            // We get the parameters :
            String algoName = args[1]; // algorithm name
            String input = args[2];  // input file
            String output = args[3]; // output file
            // create an array to store the parameters of the algorithm
            String parameters[] = new String[args.length - 4];
            // copy the arguments in the array of parameters:
            if (args.length > 4) {
                System.arraycopy(args, 4, parameters, 0, args.length - 4);
            }
            // run the algorithm:
            try {
            	CommandProcessor.runAlgorithm(algoName, input, output, parameters);
            }catch (NumberFormatException e) {
                System.out.println("Error. Please check the parameters of the algorithm.  The format for numbers is incorrect. \n"
                        + "\n ERROR MESSAGE = " + e.toString());
            } catch (Throwable e) {
            	System.out.println("An error while trying to run the algorithm. \n ERROR MESSAGE = " + e.toString());
                e.printStackTrace();
            }
        } // "test" --> this is to run a test file (for developers only).
        else if ("test".equals(args[0])) {
            String testName = args[1];
            try {
                @SuppressWarnings("rawtypes")
				Class testClass = Class.forName("ca.pfv.spmf.tests." + testName);
                @SuppressWarnings("unchecked")
				Method mainMethod = testClass.getMethod("main", String[].class);
                String[] params = null;
                mainMethod.invoke(null, (Object) params);
            } catch (Exception e) {
                e.printStackTrace();
            }

        } else {
            // if any other commands that we don't recognize, we show this:
            System.out.println("\n\n Command not recognized.\n For help, please check the documentation section of the SPMF website: http://philippe-fournier-viger.com/spmf/ \n \n");
        }
    }

}