public LicenseFile TryGetLicense()
        {
            var environment = Environment.GetEnvironmentVariable(Constants.ENV_NAME);

            if (string.IsNullOrWhiteSpace(environment))
            {
                throw new NoSidLicenseEnvironmentVariableException();
            }

            if (!Directory.Exists(environment))
            {
                throw new BadSidLicenseEnvironmentException();
            }

            var pfxFile = Path.Combine(environment, _pfxFile);

            if (!File.Exists(pfxFile))
            {
                throw new NoCertificateException();
            }

            var licenseFile = Path.Combine(environment, Constants.LICENSE_FILE_NAME);

            if (!File.Exists(licenseFile))
            {
                throw new LicenseFileNotFoundException();
            }

            var licenseContent         = File.ReadAllText(licenseFile);
            var certificate            = new X509Certificate2(pfxFile);
            var splittedLicenseContent = licenseContent.Split('.');

            if (!CertificateHelper.CheckSignature(certificate, splittedLicenseContent.First(), splittedLicenseContent.Last()))
            {
                throw new BadLicenseFileException();
            }

            return(JsonConvert.DeserializeObject <LicenseFile>(Encoding.UTF8.GetString(Convert.FromBase64String(splittedLicenseContent.First()))));
        }