com.fuerve.villageelder.client.commandline.commands.Version.java Source code

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Here is the source code for com.fuerve.villageelder.client.commandline.commands.Version.java

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/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.fuerve.villageelder.client.commandline.commands;

import org.apache.commons.cli.CommandLine;

import com.fuerve.villageelder.common.VersionInfo;

/**
 * The 'version' command.
 * @author lparker
 *
 */
public final class Version extends Command {

    /**
     * Initializes a new instance of Version with command line arguments.
     * @param aargs The command line arguments.
     */
    public Version() {
        super();
        addOption("s", "short", false, "Prints just the requested version info with no labeling");
        addOption("M", "major", false, "Include the major revision number");
        addOption("m", "minor", false, "Include the minor revision number");
        addOption("u", "update", false, "Include the update revision number");
        addOption("h", "hotfix", false, "Include the hotfix revision number");
        addOption("b", "build", false, "Include the build revision number");
        addOption("a", "all", false, "(Default) Include the entire revision number");
        addOption("?", "help", false, "Show help for the version command");
    }

    /* (non-Javadoc)
     * @see com.fuerve.villageelder.client.commandline.commands.Command#getCommandName()
     */
    @Override
    protected String getCommandName() {
        return "version";
    }

    /* (non-Javadoc)
     * @see com.fuerve.villageelder.client.commandline.commands.Command#execute()
     */
    @Override
    public int execute(final String[] args) {
        StringBuilder result = new StringBuilder();
        boolean afterNumber = false;

        if (args.length == 0) {
            addLabel(result);
            addAll(result);
        } else {
            CommandLine commandLine = parseCommandLine(args);
            if (commandLine.hasOption("?")) {
                printHelp(true);
                return 0;
            }
            if (commandLine.hasOption("a")) {
                addLabel(result);
                addAll(result);
            } else if (commandLine.hasOption("s") && commandLine.getOptions().length == 1) {
                addAll(result);
            } else {
                if (!commandLine.hasOption("s")) {
                    addLabel(result);
                }

                if (commandLine.hasOption("M")) {
                    addMajor(result);
                    afterNumber = true;
                }

                if (commandLine.hasOption("m")) {
                    result = afterNumber ? addDelimiter(result) : addNothing(result);
                    addMinor(result);
                    afterNumber = true;
                }

                if (commandLine.hasOption("u")) {
                    result = afterNumber ? addDelimiter(result) : addNothing(result);
                    addUpdate(result);
                    afterNumber = true;
                }

                if (commandLine.hasOption("h")) {
                    result = afterNumber ? addDelimiter(result) : addNothing(result);
                    addHotfix(result);
                    afterNumber = true;
                }

                if (commandLine.hasOption("b")) {
                    result = afterNumber ? addDelimiter(result) : addNothing(result);
                    addBuild(result);
                    afterNumber = true;
                }
            }

        }

        System.out.println(result.toString());
        return 0;
    }

    private StringBuilder addLabel(final StringBuilder sb) {
        return sb.append("Village Elder version ");
    }

    private StringBuilder addDelimiter(final StringBuilder sb) {
        return sb.append('.');
    }

    private StringBuilder addMajor(final StringBuilder sb) {
        return sb.append(VersionInfo.getMajorRevision());
    }

    private StringBuilder addMinor(final StringBuilder sb) {
        return sb.append(VersionInfo.getMinorRevision());
    }

    private StringBuilder addUpdate(final StringBuilder sb) {
        return sb.append(VersionInfo.getUpdateRevision());
    }

    private StringBuilder addHotfix(final StringBuilder sb) {
        return sb.append(VersionInfo.getHotfixRevision());
    }

    private StringBuilder addBuild(final StringBuilder sb) {
        return sb.append(VersionInfo.getBuildRevision());
    }

    private StringBuilder addAll(final StringBuilder sb) {
        return sb.append(VersionInfo.getVersion());
    }

    private StringBuilder addNothing(final StringBuilder sb) {
        return sb;
    }
}