de.topobyte.osm4j.utils.AbstractExecutable.java Source code

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Here is the source code for de.topobyte.osm4j.utils.AbstractExecutable.java

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// Copyright 2015 Sebastian Kuerten
//
// This file is part of osm4j.
//
// osm4j is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// osm4j 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with osm4j. If not, see <http://www.gnu.org/licenses/>.

package de.topobyte.osm4j.utils;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.DefaultParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;

public abstract class AbstractExecutable {

    protected abstract String getHelpMessage();

    protected Options options = new Options();
    protected CommandLine line = null;

    protected void setup(String[] args) {
        try {
            line = new DefaultParser().parse(options, args);
        } catch (ParseException e) {
            System.out.println("unable to parse command line: " + e.getMessage());
            new HelpFormatter().printHelp(getHelpMessage(), options);
            System.exit(1);
        }
    }

}