by.stub.Main.java Source code

Introduction

Here is the source code for by.stub.Main.java

Source

/*
HTTP stub server written in Java with embedded Jetty
    
Copyright (C) 2012 Alexander Zagniotov, Isa Goksu and Eric Mrak
    
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 by.stub;

import by.stub.cli.ANSITerminal;
import by.stub.cli.CommandLineInterpreter;
import by.stub.exception.Stubby4JException;
import by.stub.server.JettyManager;
import by.stub.server.JettyManagerFactory;
import org.apache.commons.cli.ParseException;

import java.util.Map;

public final class Main {

    private Main() {

    }

    public static void main(final String[] args) {

        parseCommandLineArgs(args);
        if (printHelpIfRequested()) {
            return;
        }

        verifyYamlDataProvided();
        startStubby4jUsingCommandLineArgs();
    }

    private static void parseCommandLineArgs(final String[] args) {
        try {
            CommandLineInterpreter.parseCommandLine(args);
        } catch (final ParseException ex) {
            final String msg = String.format("Could not parse provided command line arguments, error: %s",
                    ex.toString());

            throw new Stubby4JException(msg);
        }
    }

    private static boolean printHelpIfRequested() {
        if (!CommandLineInterpreter.isHelp()) {
            return false;
        }

        CommandLineInterpreter.printHelp(Main.class);

        return true;
    }

    private static void verifyYamlDataProvided() {
        if (CommandLineInterpreter.isYamlProvided()) {
            return;
        }
        final String msg = String.format(
                "YAML data was not provided using command line option '--%s'. %s"
                        + "To see all command line options run again with option '--%s'",
                CommandLineInterpreter.OPTION_CONFIG, "\n", CommandLineInterpreter.OPTION_HELP);

        throw new Stubby4JException(msg);
    }

    private static void startStubby4jUsingCommandLineArgs() {
        try {
            final Map<String, String> commandLineArgs = CommandLineInterpreter.getCommandlineParams();
            final String yamlConfigFilename = commandLineArgs.get(CommandLineInterpreter.OPTION_CONFIG);

            ANSITerminal.muteConsole(CommandLineInterpreter.isMute());

            final JettyManagerFactory factory = new JettyManagerFactory();
            final JettyManager jettyManager = factory.construct(yamlConfigFilename, commandLineArgs);
            jettyManager.startJetty();

        } catch (final Exception ex) {
            final String msg = String.format("Could not init stubby4j, error: %s", ex.toString());

            throw new Stubby4JException(msg, ex);
        }
    }
}