internal static PrebuiltConfigurations ConvertToDto(
this Processing.TableConfigurations tableConfigurations,
Func <Processing.TableConfiguration, IDictionary <ColumnRole, ColumnRoleEntry> > convertColumnRoles)
{
var dtoTableConfigurations = new PrebuiltConfigurations()
{
Version = PrebuiltConfigurations.DTOVersion,
Tables = new TableConfigurations[]
{
new TableConfigurations()
{
TableId = tableConfigurations.TableId,
Configurations = tableConfigurations.Select(config => config.ConvertToDto(convertColumnRoles)).ToArray(),
DefaultConfigurationName = tableConfigurations.DefaultConfigurationName
}
}
};
return(dtoTableConfigurations);
}
private static void SerializeTableConfigurations(
Stream stream,
PrebuiltConfigurations dtoPrebuiltConfigurations,
ILogger logger)
{
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
try
{
using (var writer = JsonReaderWriterFactory.CreateJsonWriter(
stream, Encoding.Default, false, true, indentChars))
{
var serializer = new DataContractJsonSerializer(typeof(PrebuiltConfigurations));
serializer.WriteObject(writer, dtoPrebuiltConfigurations);
}
}
catch (Exception exception)
{
logger?.Warn($"Failed to serialize table configurations: {exception.Message}");
}
}
/// <inheritdoc/>
public IEnumerable <Processing.TableConfigurations> DeserializeTableConfigurations(Stream stream, ILogger logger)
{
if (stream == null)
{
return(Enumerable.Empty <Processing.TableConfigurations>());
}
var skipByteOrderMark = false;
var startingPosition = stream.Position;
using (var binaryReader = new BinaryReader(stream, Encoding.UTF8, true))
{
var byte1 = binaryReader.ReadByte();
if (byte1 == 0xEF)
{
var byte2 = binaryReader.ReadByte();
if (byte2 == 0xBB)
{
var byte3 = binaryReader.ReadByte();
if (byte3 == 0xBF)
{
skipByteOrderMark = true;
}
}
}
}
if (!skipByteOrderMark)
{
stream.Position = startingPosition;
}
PrebuiltConfigurations prebuiltConfigurations = null;
try
{
var serializer = new DataContractJsonSerializer(typeof(PrebuiltConfigurations));
prebuiltConfigurations = serializer.ReadObject(stream) as PrebuiltConfigurations;
if (prebuiltConfigurations == null)
{
return(Enumerable.Empty <Processing.TableConfigurations>());
}
}
catch (InvalidDataContractException e)
{
logger?.Warn($"Invalid {nameof(Processing.TableConfiguration)} data found: {e.Message}");
return(Enumerable.Empty <Processing.TableConfigurations>());
}
catch (SerializationException e)
{
logger?.Warn(
$"An exception was encountered while deserializing {nameof(Processing.TableConfiguration)}: " +
$"{e.Message}");
return(Enumerable.Empty <Processing.TableConfigurations>());
}
// _CDS_
// todo:validate the version
return(ConvertDataTransferObjectsToTableConfigurations(prebuiltConfigurations.Tables));
}
