org.servalproject.maps.mapfiletester.MapFileTester.java Source code

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Here is the source code for org.servalproject.maps.mapfiletester.MapFileTester.java

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/*
 * Copyright (C) 2012 The Serval Project
 *
 * This file is part of the Serval Maps Map File Tester Software
 *
 * Serval Maps Map File Tester Software 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 source code 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 source code; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package org.servalproject.maps.mapfiletester;

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

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.OptionBuilder;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.PosixParser;
import org.servalproject.maps.mapfiletester.utils.FileUtils;
import org.servalproject.maps.mapfiletester.utils.StringUtils;

/**
 * main class for the application
 */
public class MapFileTester {

    /**
     * name of the app
     */
    public static final String APP_NAME = "Serval Maps File Tester";

    /**
     * version of the app
     */
    public static final String APP_VERSION = "1.0";

    /**
     * url for more information about the app
     */
    public static final String MORE_INFO = "http://developer.servalproject.org/dokuwiki/doku.php?id=content:servalmaps:main_page";

    /**
     * url for the license info
     */
    public static final String LICENSE_INFO = "http://www.gnu.org/copyleft/gpl.html";

    /**
     * main method of the main class of the application
     * 
     * @param args an array of command line arguments
     */
    public static void main(String[] args) {

        // parse the command line options
        CommandLineParser parser = new PosixParser();
        CommandLine cmd = null;
        try {
            cmd = parser.parse(createOptions(), args);
        } catch (org.apache.commons.cli.ParseException e) {
            // something bad happened so output help message
            printCliHelp("Error in parsing arguments:\n" + e.getMessage());
        }

        /*
         * get and test the command line arguments
         */

        // input path
        String inputPath = cmd.getOptionValue("input");

        if (StringUtils.isEmpty(inputPath)) {
            printCliHelp("Error: the path to the input file / directory is required");
        }

        if (FileUtils.isFileAccessible(inputPath) == false && FileUtils.isDirectoryAccessible(inputPath) == false) {
            printCliHelp("Error: the input file / directory is not accessible");
        }

        File inputFile = new File(inputPath);

        /*
         * output some text
         */
        System.out.println(APP_NAME);
        System.out.println("Version: " + APP_VERSION);
        System.out.println("More info: " + MORE_INFO);
        System.out.println("License info: " + LICENSE_INFO + "\n");

        // inform user of resources we'll be working on
        try {
            if (inputFile.isDirectory()) {
                System.out.println("Processing map files in directory: " + inputFile.getCanonicalPath());

                // test the files in the directory
                FileTester.testFilesInDir(inputFile);

            } else {

                // test the file
                FileTester.testFile(inputFile);
            }
        } catch (IOException e) {
            System.err.println("Unable to access file system resources.\n" + e.toString());
            System.exit(-1);
        }
    }

    /*
     * output the command line options help
     */
    private static void printCliHelp(String message) {
        System.out.println(message);
        HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp("java -jar MapFileTester.jar", createOptions());
        System.exit(-1);
    }

    /*
     * create the command line options used by the app
     */
    private static Options createOptions() {

        Options options = new Options();

        OptionBuilder.withArgName("path");
        OptionBuilder.hasArg(true);
        OptionBuilder.withDescription("path to the input file / directory");
        OptionBuilder.isRequired(true);
        options.addOption(OptionBuilder.create("input"));

        return options;

    }

}