com.xylocore.copybook.generator.CopybookClassGeneratorApplication.java Source code

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Here is the source code for com.xylocore.copybook.generator.CopybookClassGeneratorApplication.java

Source

//
//   Copyright 2013 The Palantir Corporation
//
//   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 com.xylocore.copybook.generator;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

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

import com.xylocore.commons.util.AbstractApplication;

/**
 * FILLIN
 * 
 * @author      Eric R. Medley
 */

public class CopybookClassGeneratorApplication extends AbstractApplication {
    //
    // Members
    //

    private Map<String, String> cliProperties;

    //
    // Class implementation
    //

    /**
     * FILLIN
     * 
     * @param       args
     */
    public static void main(String[] args) {
        CopybookClassGeneratorApplication myApplication = new CopybookClassGeneratorApplication();
        myApplication.run(args);
    }

    @Override
    protected void buildOptions(Options aOptions) {
        aOptions.addOption("c", "class", true, "the name of the copybook class");
        aOptions.addOption("g", "genrootdir", true, "the generation root directory");
        aOptions.addOption("m", "metafile", true, "the environment metafile filename");
        aOptions.addOption("i", "implrecname", true, "the implicit record name");
    }

    @Override
    protected void processArguments(CommandLine aCommandLine) throws ParseException {
        cliProperties = new HashMap<>();

        checkOption(aCommandLine, "class", EnvironmentConfigurator.CLASS_NAME_KEY);
        checkOption(aCommandLine, "genrootdir", EnvironmentConfigurator.GENERATION_ROOT_DIR_KEY);
        checkOption(aCommandLine, "metafile", EnvironmentConfigurator.METADATA_FILENAME_KEY);
        checkOption(aCommandLine, "implrecname", EnvironmentConfigurator.IMPLICIT_RECORD_NAME_KEY);

        @SuppressWarnings("unchecked")
        List<String> myArgList = aCommandLine.getArgList();

        if (myArgList.size() == 0) {
            throw new ParseException("missing arguments");
        } else if (myArgList.size() > 1) {
            throw new ParseException("too many arguments");
        }

        cliProperties.put(EnvironmentConfigurator.COPYBOOK_FILENAME_KEY, myArgList.get(0));

        // Use the current working directory for the generation root directory if a generation root
        // directory was not specified
        if (cliProperties.get(EnvironmentConfigurator.GENERATION_ROOT_DIR_KEY) == null) {
            String myCurrentWorkingDirectory = System.getProperty("user.dir");
            cliProperties.put(EnvironmentConfigurator.GENERATION_ROOT_DIR_KEY, myCurrentWorkingDirectory);
        }
    }

    /**
     * FILLIN
     * 
     * @param       aCommandLine
     * @param       aOptionName
     * @param       aKey
     */
    private void checkOption(CommandLine aCommandLine, String aOptionName, String aKey) {
        if (aCommandLine.hasOption(aOptionName)) {
            cliProperties.put(aKey, aCommandLine.getOptionValue(aOptionName));
        }
    }

    @Override
    protected void runImpl() throws Exception {
        EnvironmentConfigurator myConfigurator = new EnvironmentConfigurator();
        myConfigurator.setOverrideProperties(cliProperties);

        Environment myEnvironment = myConfigurator.configure();
        CopybookClassGenerator myGenerator = new CopybookClassGenerator(myEnvironment);

        myGenerator.generate();
    }
}