/// <summary>
/// Returns true if object name should be ignored
/// </summary>
/// <param name="name">Property or field name</param>
/// <param name="path">Full path to object</param>
/// <param name="options">Comparison options</param>
/// <param name="ignorePropertiesOrPaths">List of names or paths to ignore</param>
/// <returns></returns>
protected bool IgnoreObjectName(string name, string path, IEnumerable<CustomAttributeData> attributes = null)
{
var ignoreByNameOrPath = _ignorePropertiesOrPaths?.Contains(name) == true || _ignorePropertiesOrPaths?.Contains(path) == true;
if (ignoreByNameOrPath)
{
return true;
}
#if FEATURE_CUSTOM_ATTRIBUTES
if (attributes?.Any(x => !_options.BitwiseHasFlag(SerializerOptions.DisableIgnoreAttributes) && (_ignoreAttributes.Contains(x.AttributeType) || _ignoreAttributes.Contains(x.AttributeType.Name))) == true)
{
return true;
}
#else
if (attributes?.Any(x => !_options.BitwiseHasFlag(SerializerOptions.DisableIgnoreAttributes) && (_ignoreAttributes.Contains(x.Constructor.DeclaringType) || _ignoreAttributes.Contains(x.Constructor.DeclaringType.Name))) == true)
{
return true;
}
#endif
return false;
}
/// <summary>
/// Inspect an object and serialize its contents
/// </summary>
/// <param name="sourceObject"></param>
/// <param name="currentDepth"></param>
/// <param name="maxDepth"></param>
/// <param name="options">The serialization options</param>
/// <param name="objectTree"></param>
/// <param name="ignoreAttributes"></param>
/// <param name="path"></param>
/// <returns></returns>
internal byte[] InspectAndSerialize(object sourceObject, uint maxDepth, SerializerOptions options, ICollection <object> ignoreAttributes, ICollection <string> ignorePropertiesOrPaths = null)
{
if (sourceObject == null)
{
return(null);
}
var typeSupport = sourceObject.GetType().GetExtendedType();
// drop any objects we are ignoring by attribute
if (typeSupport.Attributes.Any(x => ignoreAttributes.Contains(x)))
{
return(null);
}
// for delegate types, return null
if (typeSupport.IsDelegate)
{
return(null);
}
byte[] dataBytes = null;
TypeDescriptors typeDescriptors = null;
using (var stream = new MemoryStream())
{
using (var writer = new BinaryWriter(stream))
{
typeDescriptors = TypeWriter.Write(writer, sourceObject, typeSupport, maxDepth, options, ignoreAttributes, out var diagnosticLog, ignorePropertiesOrPaths);
DiagnosticLog = diagnosticLog;
}
dataBytes = stream.ToArray();
}
if (typeDescriptors != null)
{
dataBytes = BuildTypeDescriptorMap(dataBytes, typeDescriptors);
}
if (options.BitwiseHasFlag(SerializerOptions.Compress))
{
#if FEATURE_COMPRESSION
// enable data compression for strings
dataBytes = CompressData(dataBytes);
#else
throw new InvalidOperationException($"Compression is only available in .Net Framework 4.6+ and .Net Standard 1.6+");
#endif
}
return(dataBytes);
}
/// <summary>
/// Write the parent object, and recursively process it's children
/// </summary>
/// <param name="writer"></param>
/// <param name="obj"></param>
/// <param name="typeSupport"></param>
/// <param name="maxDepth"></param>
/// <param name="options">The serialization options</param>
/// <param name="objectTree"></param>
/// <param name="ignoreAttributes"></param>
internal static TypeDescriptors Write(BinaryWriter writer, object obj, ExtendedType typeSupport, uint maxDepth, SerializerOptions options, ICollection <object> ignoreAttributes, out string diagnosticLog, ICollection <string> ignorePropertiesOrPaths = null)
{
var currentDepth = 0;
diagnosticLog = string.Empty;
TypeDescriptors typeDescriptors = null;
if (options.BitwiseHasFlag(SerializerOptions.EmbedTypes))
{
typeDescriptors = new TypeDescriptors();
}
var dataSettings = SerializerDataSettings.None;
if (typeDescriptors != null)
{
dataSettings |= SerializerDataSettings.TypeMap;
}
if (options.BitwiseHasFlag(SerializerOptions.Compact))
{
dataSettings |= SerializerDataSettings.Compact;
}
if (options.BitwiseHasFlag(SerializerOptions.Compress))
{
dataSettings |= SerializerDataSettings.Compress;
}
// write the serializer byte 0, data settings
writer.Write((byte)dataSettings);
var typeWriter = new TypeWriter(maxDepth, dataSettings, options, ignoreAttributes, typeDescriptors, ignorePropertiesOrPaths);
typeWriter.WriteObject(writer, obj, typeSupport, currentDepth, string.Empty, 0);
if (options.BitwiseHasFlag(SerializerOptions.WriteDiagnosticLog))
{
diagnosticLog = typeWriter.GetDiagnosticLog();
}
return(typeDescriptors);
}
