MainSpringPRD.java

package com.temenos.interaction.rimdsl.generator.launcher;

/*
 * #%L
 * com.temenos.interaction.rimdsl.RimDsl - Generator
 * %%
 * Copyright (C) 2012 - 2013 Temenos Holdings N.V.
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero 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 Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * #L%
 */


import java.io.File;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.GnuParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.OptionBuilder;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;

import com.google.inject.Injector;
import com.temenos.interaction.rimdsl.RIMDslStandaloneSetupSpringPRD;

public class MainSpringPRD {

	public static void main(String[] args) {
		// handle command line options
		final Options options = new Options();
		OptionBuilder.withArgName("src");
		OptionBuilder.withDescription("Model source");
		OptionBuilder.hasArg();
		OptionBuilder.isRequired();
		OptionBuilder.withValueSeparator(' ');
		Option optSrc = OptionBuilder.create("src");
				
		OptionBuilder.withArgName("targetdir");
		OptionBuilder.withDescription("Generator target directory");
		OptionBuilder.hasArg();
		OptionBuilder.isRequired();
		OptionBuilder.withValueSeparator(' ');
		Option optTargetDir = OptionBuilder.create("targetdir");

		options.addOption(optSrc); options.addOption(optTargetDir);
		
		// create the command line parser
		final CommandLineParser parser = new GnuParser(); 
		CommandLine line = null;
		try {
			line = parser.parse(options, args);
		} catch (final ParseException exp) {
			System.err.println("Parsing arguments failed.  Reason: " + exp); 
			wrongCall(options); return;
		}
		
		// execute the generator
		Injector injector = new RIMDslStandaloneSetupSpringPRD().createInjectorAndDoEMFRegistration();
		Generator generator = injector.getInstance(Generator.class);
		File srcFile = new File(line.getOptionValue(optSrc.getArgName()));
		if (srcFile.exists()) {
			boolean result = false;
			if (srcFile.isDirectory()) {
				result = generator.runGeneratorDir(srcFile.getPath(), line.getOptionValue(optTargetDir.getArgName()));
			} else {
				result = generator.runGenerator(srcFile.getPath(), line.getOptionValue(optTargetDir.getArgName()));
			}
			System.out.println("Code generation finished ["+result+"]");
		} else {
			System.out.println("Src dir not found.");
		}

	}
	
	/**
	 * Print usage information and terminate the program.
	 * 
	 * @param options
	 */
	private static void wrongCall(final Options options) {
		final HelpFormatter formatter = new HelpFormatter();
		formatter.printHelp("java " + Launcher.class.getName() + " [OPTIONS]",
				options);
	}

}