com.denimgroup.threadfix.data.entities.Version Maven / Gradle / Ivy

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package com.denimgroup.threadfix.data.entities;

import com.denimgroup.threadfix.util.IntegerUtils;

/**
 * Created by jtomsett on 5/20/2016.
 */
public class Version implements Comparable{

    private static final String INVALID_VERSION = "INVALID_VERSION";

    private String versionString;
    private Integer major;
    private Integer minor;
    private Integer build;
    private Integer revision;

    public Version(String versionString){
        setVersionString(versionString);
        major = 0;
        minor = 0;
        build = 0;
        revision = 0;
        buildVersion();

    }

    public String getVersionString() {
        return versionString;
    }

    public void setVersionString(String versionString) {
        this.versionString = versionString.trim();
    }

    public Integer getMajor() {
        return major;
    }

    public void setMajor(Integer major) {
        this.major = major;
    }

    public Integer getMinor() {
        return minor;
    }

    public void setMinor(Integer minor) {
        this.minor = minor;
    }

    public Integer getBuild() {
        return build;
    }

    public void setBuild(Integer build) {
        this.build = build;
    }

    public Integer getRevision() {
        return revision;
    }

    public void setRevision(Integer revision) {
        this.revision = revision;
    }

    public static String getInvalidVersion() {
        return INVALID_VERSION;
    }

    public int compareTo(Version otherVersion){
        if(otherVersion.getMajor() > major){
            /**
             * otherVersion has a greater Major version number
             */
            return -1;
        }else if(otherVersion.getMajor() == major){

            if(otherVersion.getMinor() > minor){
                /**
                 * otherVersion has the same Major version number
                 * otherVersion has a greater Minor Version number
                 */
                return -1;
            }else if(otherVersion.getMinor() == minor){

                if(otherVersion.getBuild() > build){
                    /**
                     * otherVersion has the same Major version number
                     * otherVersion has the same Minor version number
                     * otherVersion has a greater build version number
                     */
                    return -1;
                }else if(otherVersion.getBuild() == build){
                    if(otherVersion.getRevision() > revision){
                        /**
                         * otherVersion has the same Major version number
                         * otherVersion has the same Minor version number
                         * otherVersion has the same build version number
                         * otherVersion has a greater revision version number
                         */
                        return -1;
                    }else if(otherVersion.getRevision() == revision){
                        /**
                         * otherVersion equals this version
                         */
                        return 0;
                    }
                    /**
                     * otherVersion has the same Major version number
                     * otherVersion has the same Minor version number
                     * otherVersion has the same build version number
                     * this Version has a greater revision version number
                     */
                    return 1;
                }
                /**
                 * otherVersion has the same Major version number
                 * otherVersion has the same Minor version number
                 * this version has a greater build version number
                 */
                return 1;
            }
            /**
             * otherVersion has the same Major version number
             * this version has a greater Minor version number
             */
            return 1;
        }
        /**
         * this version has a greater Major version number
         */
        return 1;
    }


    public void buildVersion(){
       String[] versionParts = versionString.split("\\.");
        if (versionParts.length == 0) {
            versionString = INVALID_VERSION;
        }else {
            for (int i = 0; i < versionParts.length; i++) {
                if (i > 3) {
                    break;
                }
                if (i == 0) {
                    major = IntegerUtils.getIntegerOrNull(versionParts[i]);
                    if (major == null) {
                        versionString = INVALID_VERSION;
                        break;
                    }
                }
                if (i == 1) {
                    minor = IntegerUtils.getIntegerOrNull(versionParts[i]);
                    if (minor == null) {
                        versionString = INVALID_VERSION;
                        break;
                    }
                }
                if (i == 2) {
                    build = IntegerUtils.getIntegerOrNull(versionParts[i]);
                    if (build == null) {
                        versionString = INVALID_VERSION;
                        break;
                    }
                }
                if (i == 3) {
                    revision = IntegerUtils.getIntegerOrNull(versionParts[i]);
                    if (revision == null) {
                        versionString = INVALID_VERSION;
                        break;
                    }
                }

            }
        }
    }


}