ca.uqam.mglunit.Runner.java Source code

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Here is the source code for ca.uqam.mglunit.Runner.java

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/*
 * Copyright (C) 2011 Francois-Xavier Guillemette
 * 
 * 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 ca.uqam.mglunit;

import java.io.*;
import java.util.logging.*;
import org.apache.commons.cli.*;

public class Runner {
    private static final Logger logger = Logger.getLogger(Runner.class.getCanonicalName());
    private static Options cliOptions = new Options();

    static {
        cliOptions.addOption("h", "help", false, "print this message");
        cliOptions.addOption("o", "output", true, "use given file for output");
        cliOptions.addOption("f", "format", true,
                "specify output format. Possible values: (plain|xml). Defaults to 'plain'.");
    }

    private Class specificationClass;
    private TestResultLogger results;
    private TestRunner rootTestRunner;

    public int run() {
        try {
            rootTestRunner = new TestBuilder().buildTestFrom(specificationClass);
            rootTestRunner.run(results);
            return 0;
        } catch (Exception ex) {
            logger.log(Level.SEVERE, "Caught expected", ex);
            return 1;
        }
    }

    public void setTestResultLogger(TestResultLogger testResultLogger) {
        this.results = testResultLogger;
    }

    public void setSpecificationClass(Class specificationClass) {
        this.specificationClass = specificationClass;
    }

    TestRunner getRootTestRunner() {
        return rootTestRunner;
    }

    public static void main(String[] args) throws Exception {
        Runner runner = new Runner();
        TestResultLogger logger = new TestResultLogger();
        logger.setOutputStream(System.out);

        try {
            CommandLineParser parser = new GnuParser();
            CommandLine cli = parser.parse(cliOptions, args);
            if (cli.hasOption("help") || cli.getArgs().length == 0)
                printHelp();
            else {
                configureLogger(logger, cli);
                runner.setTestResultLogger(logger);
                runner.setSpecificationClass(Class.forName(cli.getArgs()[0]));
                runner.run();
            }
        } catch (ParseException ex) {
            printHelp();
        } finally {
            logger.print();
        }
    }

    private static void configureLogger(TestResultLogger logger, CommandLine cli) throws Exception {
        if (cli.hasOption("format") && cli.getOptionValue("format") == "xml")
            logger.setFormatter(new XmlFormatter());

        if (cli.hasOption("output"))
            logger.setOutputStream(new FileOutputStream(cli.getOptionValue("output")));
    }

    private static void printHelp() {
        HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp("java " + Runner.class.getCanonicalName() + " [OPTIONS] FILE", cliOptions);
    }
}