Main.java

/*
 * Cobertura - http://cobertura.sourceforge.net/
 *
 * Copyright (C) 2003 jcoverage ltd.
 * Copyright (C) 2005 Mark Doliner
 * Copyright (C) 2005 Jeremy Thomerson
 * Copyright (C) 2005 Grzegorz Lukasik
 * Copyright (C) 2006 Dan Godfrey
 *
 * Cobertura 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 2 of the License,
 * or (at your option) any later version.
 *
 * Cobertura 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 Cobertura; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 */

package net.sourceforge.cobertura.reporting;

import java.io.File;

import net.sourceforge.cobertura.coveragedata.CoverageDataFileHandler;
import net.sourceforge.cobertura.coveragedata.ProjectData;
import net.sourceforge.cobertura.reporting.html.HTMLReport;
import net.sourceforge.cobertura.reporting.xml.SummaryXMLReport;
import net.sourceforge.cobertura.reporting.xml.XMLReport;
import net.sourceforge.cobertura.util.CommandLineBuilder;
import net.sourceforge.cobertura.util.FileFinder;
import net.sourceforge.cobertura.util.Header;

import org.apache.log4j.Logger;

public class Main {

    private static final Logger LOGGER = Logger.getLogger(Main.class);

    private String format = "html";
    private File dataFile = null;
    private File destinationDir = null;
    private String encoding = "UTF-8";

    private void parseArguments(String[] args) throws Exception {
        FileFinder finder = new FileFinder();
        String baseDir = null;
        for (int i = 0; i < args.length; i++) {
            if (args[i].equals("--basedir")) {
                baseDir = args[++i];
            } else if (args[i].equals("--datafile")) {
                setDataFile(args[++i]);
            } else if (args[i].equals("--destination")) {
                setDestination(args[++i]);
            } else if (args[i].equals("--format")) {
                setFormat(args[++i]);
            } else if (args[i].equals("--encoding")) {
                setEncoding(args[++i]);
            } else {
                if (baseDir == null) {
                    finder.addSourceDirectory(args[i]);
                } else {
                    finder.addSourceFile(baseDir, args[i]);
                }
            }
        }

        if (dataFile == null)
            dataFile = CoverageDataFileHandler.getDefaultDataFile();

        if (destinationDir == null) {
            System.err.println("Error: destination directory must be set");
            System.exit(1);
        }

        if (format == null) {
            System.err.println("Error: format must be set");
            System.exit(1);
        }

        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("format is " + format + " encoding is " + encoding);
            LOGGER.debug("dataFile is " + dataFile.getAbsolutePath());
            LOGGER.debug("destinationDir is "
                    + destinationDir.getAbsolutePath());
        }

        ProjectData projectData = CoverageDataFileHandler.loadCoverageData(dataFile);

        if (projectData == null) {
            System.err.println("Error: Unable to read from data file " + dataFile.getAbsolutePath());
            System.exit(1);
        }

        ComplexityCalculator complexity = new ComplexityCalculator(finder);
        if (format.equalsIgnoreCase("html")) {
            new HTMLReport(projectData, destinationDir, finder, complexity, encoding);
        } else if (format.equalsIgnoreCase("xml")) {
            new XMLReport(projectData, destinationDir, finder, complexity);
        } else if (format.equalsIgnoreCase("summaryXml")) {
            new SummaryXMLReport(projectData, destinationDir, finder, complexity);
        }
    }

    private void setFormat(String value) {
        format = value;
        if (!format.equalsIgnoreCase("html")
                && !format.equalsIgnoreCase("xml")
                && !format.equalsIgnoreCase("summaryXml")) {
            System.err.println("" +
                    "Error: format \"" +
                    format + "\" is invalid. Must be either html or xml or summaryXml"
            );
            System.exit(1);
        }
    }

    private void setDataFile(String value) {
        dataFile = new File(value);
        if (!dataFile.exists()) {
            System.err.println("Error: data file " + dataFile.getAbsolutePath()
                    + " does not exist");
            System.exit(1);
        }
        if (!dataFile.isFile()) {
            System.err.println("Error: data file " + dataFile.getAbsolutePath()
                    + " must be a regular file");
            System.exit(1);
        }
    }

    private void setDestination(String value) {
        destinationDir = new File(value);
        if (destinationDir.exists() && !destinationDir.isDirectory()) {
            System.err.println("Error: destination directory " + destinationDir
                    + " already exists but is not a directory");
            System.exit(1);
        }
        destinationDir.mkdirs();
    }

    private void setEncoding(String encoding) {
        this.encoding = encoding;
    }

    public static void main(String[] args) throws Exception {
        Header.print(System.out);

        long startTime = System.currentTimeMillis();

        Main main = new Main();

        try {
            args = CommandLineBuilder.preprocessCommandLineArguments(args);
        } catch (Exception ex) {
            System.err.println("Error: Cannot process arguments: " + ex.getMessage());
            System.exit(1);
        }

        main.parseArguments(args);

        long stopTime = System.currentTimeMillis();
        System.out.println("Report time: " + (stopTime - startTime) + "ms");
    }

}