software.amazon.ion.impl.PrivateCommandLine Maven / Gradle / Ivy

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A Java implementation of the Amazon Ion data notation.
There is a newer version: 1.5.1
/*
 * Copyright 2010-2016 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at:
 *
 *     http://aws.amazon.com/apache2.0/
 *
 * or in the "license" file accompanying this file. This file 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 software.amazon.ion.impl;

import java.io.IOException;
import software.amazon.ion.IonType;
import software.amazon.ion.IonWriter;
import software.amazon.ion.system.IonTextWriterBuilder;
import software.amazon.ion.util.JarInfo;

/**
 * @deprecated This is an internal API that is subject to change without notice.
 */
@Deprecated
public final class PrivateCommandLine
{
    static final int argid_VERSION = 2;
    static final int argid_HELP    = 3;
    static final int argid_INVALID = -1;

    static JarInfo info = null;
    static boolean printHelp    = false;
    static boolean printVersion = false;
    static String  errorMessage = null;


    /**
     * This main simply prints the version information to
     * allow users to identify the build version of the Jar.
     *
     * @param args user command line flags
     */
    public static void main(String[] args) throws IOException
    {
        process_command_line(args);

        info = new JarInfo();
        if (printVersion) {
            doPrintVersion();
        }
        if (printHelp) {
            doPrintHelp();
        }
    }

    private static void process_command_line(String[] args)
    {
        if (args.length == 0) printHelp = true;

        for (int ii=0; ii ");
        System.out.println("options:");
        System.out.println("version\t\tprints current version entry");
        System.out.println("help\t\tprints this helpful message");
        if (errorMessage != null) {
            System.out.println();
            System.out.println(errorMessage);
        }
    }


    private static void doPrintVersion() throws IOException
    {
        IonTextWriterBuilder b = IonTextWriterBuilder.pretty();
        b.setCharset(IonTextWriterBuilder.ASCII);

        IonWriter w = b.build((Appendable)System.out);
        w.stepIn(IonType.STRUCT);
        {
            w.setFieldName("version");
            w.writeString(info.getProjectVersion());

            w.setFieldName("build_time");
            w.writeTimestamp(info.getBuildTime());
        }
        w.stepOut();
        w.finish();

        System.out.println();
    }
}