org.overture.alloy.Main.java Source code

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Here is the source code for org.overture.alloy.Main.java

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/*
 * Copyright (C) 2012 Kenneth Lausdahl
 * 
 * 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/gpl-3.0.html>.
 * 
 */
package org.overture.alloy;

import java.io.File;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.util.List;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;
import org.apache.commons.cli.PosixParser;
import org.overture.alloy.ast.Part;
import org.overture.alloy.ast.Pred;
import org.overture.alloy.ast.Run;
import org.overture.ast.lex.Dialect;
import org.overture.ast.modules.AModuleModules;
import org.overture.config.Settings;
import org.overture.typechecker.util.TypeCheckerUtil;
import org.overture.typechecker.util.TypeCheckerUtil.TypeCheckResult;
import edu.mit.csail.sdg.alloy4.Terminal;

public class Main {
    /**
     * @param args
     * @throws Exception
     */
    public static void main(String[] args) throws Exception {
        execute(args);
    }

    /**
     * @param args
     * @throws Exception
     */
    public static int execute(String[] args) throws Exception {
        // create the command line parser
        CommandLineParser parser = new PosixParser();

        // create the Options
        Options options = new Options();
        Option helpOpt = new Option("?", "help", false, "print this message");

        Option vdmOpt = new Option("vdm", true, "the vdm input file to translate");
        vdmOpt.setRequired(true);
        Option outputOpt = new Option("o", "output", true, "a file path used to write the translated result to");
        Option suppressAlloyCheckOpt = new Option("nocheck", "noalloycheck", false,
                "run alloy to on the generated file");
        Option verboseOpt = new Option("v", "verbose", false, "verbose output when generating");
        Option extraAlloyTest = new Option("test2", "alloytest2", true,
                "exstra model used when checking the output");

        options.addOption(helpOpt);
        options.addOption(vdmOpt);
        options.addOption(outputOpt);
        options.addOption(suppressAlloyCheckOpt);
        options.addOption(verboseOpt);
        options.addOption(extraAlloyTest);

        CommandLine line = null;
        try {
            // parse the command line arguments
            line = parser.parse(options, args);

            if (line.hasOption(helpOpt.getOpt())) {
                // automatically generate the help statement
                HelpFormatter formatter = new HelpFormatter();
                formatter.printHelp("vdm2alloy", options);
                return 0;
            }

        } catch (ParseException exp) {
            System.err.println("Unexpected exception:" + exp.getMessage());
            HelpFormatter formatter = new HelpFormatter();
            formatter.printHelp("vdm2alloy", options);
            return 1;
        }

        File input = null;
        File output = null;

        if (line.hasOption(vdmOpt.getOpt())) {
            input = new File(line.getOptionValue(vdmOpt.getOpt()));
        }

        if (line.hasOption(outputOpt.getOpt())) {
            String fileName = line.getOptionValue(outputOpt.getOpt());
            if (!fileName.endsWith(".als")) {
                fileName += ".als";
            }
            output = new File(fileName);
        }

        boolean verbose = line.hasOption(verboseOpt.getOpt());

        Settings.dialect = Dialect.VDM_SL;
        TypeCheckResult<List<AModuleModules>> result = TypeCheckerUtil.typeCheckSl(input);

        if (result.errors.isEmpty()) {
            File tmpFile = null;
            if (output == null) {
                tmpFile = File.createTempFile("vdm2alloy", ".als");
            } else {
                tmpFile = output;
            }

            Alloy2VdmAnalysis analysis = new Alloy2VdmAnalysis(
                    tmpFile.getName().substring(0, tmpFile.getName().indexOf(".")));
            result.result.get(0).apply(analysis, new Context());

            // Alloy2VdmAnalysis analysis = new Alloy2VdmAnalysis(tmpFile.getName().substring(0,
            // tmpFile.getName().indexOf(".")));
            // result.result.get(0).apply(analysis);

            analysis.components.add(new Pred("show", "", ""));
            analysis.components.add(new Run("show"));

            FileWriter outFile = new FileWriter(tmpFile);
            PrintWriter out = new PrintWriter(outFile);
            for (Part string : analysis.components) {
                if (verbose) {
                    System.out.println(string);
                }
                out.println(string);
            }

            out.close();

            if (!line.hasOption(suppressAlloyCheckOpt.getOpt())) {
                System.out.println("\n------------------------------------");
                System.out.println("Running Alloy...\n");
                System.out.println("Temp file: " + tmpFile.getAbsolutePath());

                System.out.println("Running Alloy on file: " + tmpFile.getName());
                int exitCode = Terminal
                        .execute(new String[] { "-alloy", tmpFile.getAbsolutePath(), "-a", "-s", "SAT4J" });
                if (exitCode != 0) {
                    return exitCode;
                }

                if (line.hasOption(extraAlloyTest.getOpt())) {
                    String testInputPath = line.getOptionValue(extraAlloyTest.getOpt());
                    System.out.println("Running Alloy on file: " + testInputPath);
                    Terminal.main(new String[] { "-alloy", testInputPath, "-a", "-s", "SAT4J" });
                }
            }
        } else {
            System.err.println("Errors in input VDM model");
            return 1;
        }
        return 0;
    }

}