org.ovirt.api.metamodel.tool.EnumGenerationToolJaxb Maven / Gradle / Ivy

Go to download
/*
Copyright (c) 2016 Red Hat, Inc.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

  http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package org.ovirt.api.metamodel.tool;

import java.io.File;

import javax.enterprise.context.ApplicationScoped;
import javax.inject.Inject;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.DefaultParser;
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.io.FileUtils;
import org.ovirt.api.metamodel.analyzer.ModelAnalyzer;
import org.ovirt.api.metamodel.concepts.Model;

@ApplicationScoped
public class EnumGenerationToolJaxb {

    // The names of the command line options:
    private static final String MODEL_OPTION = "model";
    private static final String XJC_OPTION = "xjc";

    @Inject private EnumGeneratorJaxb enumGenerator;

    public void run(String[] args) throws Exception {

        CommandLine line = createCommandLineOptions(args);

        File modelFile = (File) line.getParsedOptionValue(MODEL_OPTION);
        File xjcDir = (File) line.getParsedOptionValue(XJC_OPTION);

        // Analyze the model files:
        Model model = new Model();
        ModelAnalyzer modelAnalyzer = new ModelAnalyzer();
        modelAnalyzer.setModel(model);
        modelAnalyzer.analyzeSource(modelFile);

        // Generate the enums:
        if (xjcDir != null) {
            FileUtils.forceMkdir(xjcDir);
            enumGenerator.setOutDir(xjcDir);
            enumGenerator.generate(model);
        }
    }

    protected CommandLine createCommandLineOptions(String[] args) {
        // Create the command line options:
        Options options = new Options();

        options.addOption(Option.builder()
            .longOpt(MODEL_OPTION)
            .desc("The directory or .jar file containing the source model files.")
            .type(File.class)
            .required(true)
            .hasArg(true)
            .argName("DIRECTORY|JAR")
            .build()
        );

        options.addOption(Option.builder()
            .longOpt(XJC_OPTION)
            .desc("The directory where the generated model classes will be created.")
            .type(File.class)
            .required(false)
            .hasArg(true)
            .argName("DIRECTORY")
            .build()
        );

        // Parse the command line:
        CommandLineParser parser = new DefaultParser();
        CommandLine line = null;
        try {
            line = parser.parse(options, args);
        }
        catch (ParseException exception) {
            System.out.println(exception);
            HelpFormatter formatter = new HelpFormatter();
            formatter.setSyntaxPrefix("Usage: ");
            formatter.printHelp("enum-generation--tool [OPTIONS]", options);
            System.exit(1);
        }
        return line;
    }
}