getOSShortName

in Providers/Modules/Plugins/PatchManagement/plugin/patch_management_lib.rb [50:132]
76 lines of code
33 McCabe index (conditional complexity)

    def getOSShortName(os_short_name = nil, os_version=nil)
        version = ""
        hostOSDetailsMap = getHostOSDetails()
        
        if hostOSDetailsMap.key?("OSFullName") && hostOSDetailsMap.key?("OSShortName")
            osFullName = hostOSDetailsMap["OSFullName"]
            osShortName = hostOSDetailsMap["OSShortName"]
            if osFullName.downcase.include?("oracle") && ! osShortName.downcase.include?("oracle")
                os_short_name = "Oracle"
            end
        end

        
        if hostOSDetailsMap.key?("OSShortName")
            osName = (os_short_name.nil?) ? hostOSDetailsMap["OSShortName"].split("_")[0] : os_short_name.split("_")[0]
        else
            osName =  (os_short_name.nil?) ? hostOSDetailsMap["OSFullName"] : os_short_name.split("_")[0]
        end

        if (os_version.nil?)
            @os_major_version = hostOSDetailsMap["OSVersion"][MAJOR_MINOR_VERSION_REGEX, 1] unless hostOSDetailsMap["OSVersion"].nil?
            @os_minor_version = hostOSDetailsMap["OSVersion"][MAJOR_MINOR_VERSION_REGEX, 2] unless hostOSDetailsMap["OSVersion"].nil?
            @default_version = hostOSDetailsMap["OSVersion"]
        else
            @os_major_version = os_version[MAJOR_MINOR_VERSION_REGEX, 1] unless os_version.nil?
            @os_minor_version = os_version[MAJOR_MINOR_VERSION_REGEX, 2] unless os_version.nil?
            @default_version = os_version
        end 
        
        case osName
        when "Ubuntu"
            if @os_major_version == "12" || @os_major_version == "13"
                version = "12.04"
            elsif  @os_major_version == "14" || @os_major_version == "15"
                version = "14.04"
            elsif  @os_major_version == "16" || @os_major_version == "17"
                version = "16.04"
            else
                version = @default_version
            end
        when "CentOS"
            if @os_major_version == "5"
                version = "5.0" 
            elsif  @os_major_version == "6"
                version = "6.0"
            elsif  @os_major_version == "7"
                version = "7.0"
            elsif  @os_major_version == "8"
                version = "8.0"
            else
                version = @default_version
            end
        when "RHEL"
            if @os_major_version == "5"
                version = "5.0" 
            elsif  @os_major_version == "6"
                version = "6.0"
            elsif  @os_major_version == "7"
                version = "7.0"
            elsif  @os_major_version == "8"
                version = "8.0"
            else
                version = @default_version
            end
        when "Oracle"
            version = "6.0"
        when "SUSE"
            if @os_major_version == "11"
                version = "11.0" 
            elsif  @os_major_version == "12"
                version = "12.0"
            elsif  @os_major_version == "15"
                version = "15.0"
            else
                version = @default_version
            end
        else
            version = @default_version
        end

        return osName + @@delimiter + version
    end