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92 lines
2.7 KiB
92 lines
2.7 KiB
package com.sothr.imagetools.engine.util
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import grizzled.slf4j.Logging
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/**
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* Class to handle version detection and evaluation
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*
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* Created by drew on 1/6/14.
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*/
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class Version(val versionString:String) extends Logging{
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//parse version into parts
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//typical version string i.e. 0.1.0-DEV-27-060aec7
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val (major,minor,patch,buildTag,buildNumber,buildHash) = {
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var version:(Int, Int, Int, String, Int, String) = (0,0,0,"DEV",0,"asdfzxcv")
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try {
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val splitVersion = versionString.split("""\.""")
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val splitType = splitVersion(splitVersion.length-1).split("""-""")
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version = (splitVersion(0).toInt,splitVersion(1).toInt,splitType(0).toInt,splitType(1),splitType(2).toInt,splitType(3))
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} catch {
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case nfe:NumberFormatException => error(s"Error parsing number from version string '$versionString'", nfe)
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case e:Exception => error(s"Unexpected error parsing version string '$versionString'", e)
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}
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version
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}
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/*
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* -3 = this.patch < that.patch
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* -2 = this.minor < that.minor
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* -1 = this.major < that.major
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* 0 = Identical Versions
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* 1 = this.major > that.major
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* 2 = this.minor > that.minor
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* 3 = this.patch > that.patch
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* 4 = this.buildTag != that.buildTag
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*/
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def compare(that:Version):Integer = {
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//Identical Versions
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if (this.hashCode == that.hashCode) {
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0
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// This is at least a major version ahead
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} else if (this.major > that.major) {
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1
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// This is at least a major version behind
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} else if (this.major < that.major){
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-1
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// major is the same
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} else {
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// This is at least a minor version ahead
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if (this.minor > that.minor) {
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2
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// This is at least a minor version behind
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} else if (this.minor < that.minor) {
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-2
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// major.minor are the same
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} else {
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// This is at least a patch version ahead
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if (this.patch > that.patch) {
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3
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// This is at least a patch version version
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} else if (this.patch < that.patch) {
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-3
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//major.minor.patch are all the same
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} else {
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// This is a different build
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if (this.buildTag != that.buildTag) {
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4
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}
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//should be caught by the first if, but in case not
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0
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}
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}
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}
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}
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def parsableToString():String = {
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s"$major.$minor.$patch-$buildTag-$buildNumber-$buildHash"
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}
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override def toString:String = {
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s"$major.$minor.$patch-$buildTag build:$buildNumber code:$buildHash"
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}
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override def hashCode(): Int = {
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val prime:Int = 37
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val result:Int = 255
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var hash:Int = major
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hash += minor
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hash += patch
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hash += buildTag.hashCode
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prime * result + hash
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}
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}
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