private static AvroSerializer <T> CreateForCore <T>(string writerSchema, AvroSerializerSettings settings)
{
if (settings == null)
{
throw new ArgumentNullException("settings");
}
var key = Tuple.Create(writerSchema, typeof(T), settings);
var serializer = TypedSerializers.Get(key);
if (serializer != null && settings.UseCache)
{
return(new AvroSerializer <T>(serializer));
}
var reader = new ReflectionSchemaBuilder(settings).BuildSchema(typeof(T));
var generator = new SerializerGenerator();
var builderGenerator = new SerializerAssigningVisitor(settings);
if (string.IsNullOrEmpty(writerSchema))
{
builderGenerator.Visit(reader);
serializer = new GeneratedSerializer
{
WriterSchema = reader,
ReaderSchema = reader,
Serialize = settings.GenerateSerializer
? generator.GenerateSerializer <T>(reader)
: null,
Deserialize = settings.GenerateDeserializer
? generator.GenerateDeserializer <T>(reader)
: null
};
}
else
{
var writer = new JsonSchemaBuilder().BuildSchema(writerSchema);
var matchedSchema = new EvolutionSchemaBuilder().Build(writer, reader);
if (matchedSchema == null)
{
throw new SerializationException(string.Format(CultureInfo.InvariantCulture, "Writer schema does not match reader schema."));
}
builderGenerator.Visit(matchedSchema);
serializer = new GeneratedSerializer
{
WriterSchema = writer,
ReaderSchema = reader,
Deserialize = generator.GenerateDeserializer <T>(matchedSchema)
};
}
if (settings.UseCache)
{
TypedSerializers.Add(key, serializer);
}
return(new AvroSerializer <T>(serializer));
}
private static AvroSerializer <T> CreateForCore <T>(string writerSchema, string readerSchema)
{
var key = Tuple.Create(writerSchema, readerSchema);
var serializer = UntypedSerializers.Get(key);
if (serializer != null)
{
return(new AvroSerializer <T>(serializer));
}
var reader = new JsonSchemaBuilder().BuildSchema(readerSchema);
var builderGenerator = new SerializerAssigningVisitor(new AvroSerializerSettings());
if (string.IsNullOrEmpty(writerSchema))
{
builderGenerator.Visit(reader);
Action <IEncoder, T> s = (e, obj) => reader.Serializer.Serialize(e, obj);
Func <IDecoder, T> d = decode =>
{
return((T)reader.Serializer.Deserialize(decode));
};
serializer = new GeneratedSerializer
{
WriterSchema = reader,
ReaderSchema = reader,
Serialize = s,
Deserialize = d
};
}
else
{
var writer = new JsonSchemaBuilder().BuildSchema(writerSchema);
var matchedSchema = new EvolutionSchemaBuilder().Build(writer, reader);
if (matchedSchema == null)
{
throw new SerializationException(string.Format(CultureInfo.InvariantCulture, "Writer schema does not match reader schema."));
}
builderGenerator.Visit(matchedSchema);
Func <IDecoder, T> d = decode => (T)matchedSchema.Serializer.Deserialize(decode);
serializer = new GeneratedSerializer
{
WriterSchema = writer,
ReaderSchema = reader,
Deserialize = d
};
}
UntypedSerializers.Add(key, serializer);
return(new AvroSerializer <T>(serializer));
}
