/// <summary>
/// Gets all metadata
/// Iterates recursively through all metadata
/// </summary>
/// <remarks>
/// Intented for debug only!!!
/// </remarks>
public static List <(string metadataPath, object value)> GetListOfMetadataForDebug(this BitmapMetadata metadata)
{
var listOfAllMetadata = new List <(string metadataPath, object value)>();
try
{
GetMetadataRecursively(metadata, string.Empty);
}
#pragma warning disable CA1031 // Do not catch general exception types
catch (Exception ex)
#pragma warning restore CA1031 // Do not catch general exception types
{
Debug.WriteLine($"Exception while trying to iterate recursively over metadata. We were able to read {listOfAllMetadata.Count} metadata entries.");
Debug.WriteLine(ex);
}
return(listOfAllMetadata);
void GetMetadataRecursively(BitmapMetadata metadata, string query)
{
if (metadata == null)
{
return;
}
foreach (string relativeQuery in metadata)
{
string absolutePath = query + relativeQuery;
object metadataQueryReader = null;
try
{
metadataQueryReader = metadata.GetQuerySafe(relativeQuery);
listOfAllMetadata.Add((absolutePath, metadataQueryReader));
}
#pragma warning disable CA1031 // Do not catch general exception types
catch (Exception ex)
#pragma warning restore CA1031 // Do not catch general exception types
{
listOfAllMetadata.Add((absolutePath, $"######## INVALID METADATA: {ex.Message}"));
Debug.WriteLine(ex);
}
if (metadataQueryReader is BitmapMetadata innerMetadata)
{
GetMetadataRecursively(innerMetadata, absolutePath);
}
}
}
}
public static void CopyMetadataPropertyTo(this BitmapMetadata source, BitmapMetadata target, string query)
{
if (source == null || target == null || string.IsNullOrWhiteSpace(query))
{
return;
}
try
{
var value = source.GetQuerySafe(query);
if (value == null)
{
return;
}
target.SetQuery(query, value);
}
catch (InvalidOperationException)
{
// InvalidOperationException is thrown if metadata object is in readonly state.
return;
}
}
