edu.brandeis.cs.develops.eptosql.Cli.java Source code

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Here is the source code for edu.brandeis.cs.develops.eptosql.Cli.java

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/*
Copyright 2014 Brionne Godby, Rachel Leeman-Munk, Ryan Marcus
    
This file is part of EPtoSQL.
    
EPtoSQL 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.
    
EPtoSQL 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 EPtoSQL.  If not, see <http://www.gnu.org/licenses/>.
*/

package edu.brandeis.cs.develops.eptosql;

import java.io.File;
import java.io.IOException;
import java.util.Scanner;

import org.apache.commons.cli.BasicParser;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;

import edu.brandeis.cs.develops.eptosql.frontend.CodeGenerationOption;
import edu.brandeis.cs.develops.eptosql.frontend.EPtoSQL;
import edu.brandeis.cs.develops.eptosql.frontend.IROption;

public class Cli {
    //private static final Logger log = Logger.getLogger(Cli.class.getName());
    private String[] args = null;
    private Options options = new Options();

    public Cli(String[] args) {

        this.args = args;

        options.addOption("h", "help", false, "show help.");
        options.addOption("f", "filename", true, "file to translate.");
        options.addOption("nested", "nested", false, "if included, generate nested code");
        options.addOption("disable_ir", "disable_ir", false, "if included, disable ir");
    }

    public void parse() throws IOException {
        CommandLineParser parser = new BasicParser();

        CodeGenerationOption cgo = CodeGenerationOption.UNNESTED;
        IROption iro = IROption.ENABLE;
        CommandLine cmd = null;
        Scanner sc = null;
        try {
            cmd = parser.parse(options, args);
        } catch (ParseException e) {
            e.printStackTrace();
        }

        if (cmd.hasOption("h"))
            help();
        if (cmd.hasOption("nested"))
            cgo = CodeGenerationOption.NESTED;
        if (cmd.hasOption("disable_ir"))
            iro = IROption.DISABLE;
        if (cmd.hasOption("f")) {
            //log.log(Level.INFO, "Using cli argument -f=" + cmd.getOptionValue("f"));
            String filename = cmd.getOptionValue("f");
            sc = new Scanner(new File(filename));
        } else {
            sc = new Scanner(System.in);
        }
        String plan;
        while ((sc.hasNextLine())) {
            plan = sc.nextLine().trim();
            if (plan.length() == 0)
                continue;
            System.out.println(EPtoSQL.syncCompile(cgo, iro, plan));
        }
        sc.close();
    }

    /**
     * Prints out options specifying requirements
     */
    private void help() {
        HelpFormatter formatter = new HelpFormatter();

        formatter.printHelp("eptosql.jar", options);
        System.exit(0);
    }
}