/// <summary>Gets checksum for resource if it exists.</summary>
/// <param name="resourceKey">The resource key.</param>
/// <param name="checksumAlgorithm">The checksum algorithm to use.</param>
/// <returns>Checksum for resource or empty byte array if the resource does not exist.</returns>
public static byte[] TryGetChecksum(
ResourceKey resourceKey,
ChecksumAlgorithm checksumAlgorithm)
{
var algName = GetChecksumName(checksumAlgorithm);
using (var s = resourceKey.TryGetResourceStream())
{
if (s == null)
{
return(Array <byte> .Empty);
}
using (var h = HashAlgorithm.Create(algName))
{
// ReSharper disable once PossibleNullReferenceException
return(h.ComputeHash(s));
}
}
}
public static XDocument TryParseXmlAnnotationDoc(
ResourceKey annotationResourceKey,
[NotNull] IMessageLogger messageLogger)
{
Code.NotNull(messageLogger, nameof(messageLogger));
var assembly = annotationResourceKey.Assembly;
var resourceName = annotationResourceKey.ResourceName;
using (var resourceStream = assembly.GetManifestResourceStream(resourceName))
{
if (resourceStream == null)
{
messageLogger.WriteSetupErrorMessage(
$"XML annotation resource stream '{resourceName}' not found. Assembly {assembly.FullName}.");
return(null);
}
return(TryParseXmlAnnotationDoc(resourceStream, $"Resource '{resourceName}'", messageLogger));
}
}
public static Stream TryGetResourceStream(this ResourceKey resourceKey) => resourceKey.Assembly.GetManifestResourceStream(resourceKey.ResourceName);
