public void Component_AvroAttributeClass_ResultIsEqualToInput()
{
//Arrange
AttributeClass toSerialize = new AttributeClass
{
AndAnotherString = "anotherString",
NullableIntProperty = 1,
NullableIntPropertyWithDefaultValue = null,
NullableStringProperty = "nullableString"
};
string schema = AvroConvert.GenerateSchema(typeof(AttributeClass));
//Act
var result = AvroConvert.SerializeHeadless(toSerialize, schema);
var deserialized = AvroConvert.DeserializeHeadless <AttributeClass>(result, schema);
//Assert
Assert.NotNull(result);
Assert.NotNull(deserialized);
Assert.Equal(toSerialize.NullableIntProperty, deserialized.NullableIntProperty);
Assert.Equal(toSerialize.AndAnotherString, deserialized.AndAnotherString);
Assert.Equal(toSerialize.NullableStringProperty, deserialized.NullableStringProperty);
Assert.Equal(2137, deserialized.NullableIntPropertyWithDefaultValue);
}
public virtual async Task <T> DeserializeAsync(ReadOnlyMemory <byte> data, bool isNull, SerializationContext context)
{
using (var stream = new MemoryStream(data.ToArray(), false))
{
//Confluent Kafka format:
//https://docs.confluent.io/current/schema-registry/docs/serializer-formatter.html#wire-format
if (stream.ReadByte() != 0x00)
{
throw new InvalidDataException("Invalid Confluent Kafka data format");
}
var bytes = new byte[4];
stream.Read(bytes, 0, bytes.Length);
var id = BitConverter.ToInt32(bytes, 0);
string schema;
if (cache.ContainsKey(id))
{
schema = cache[id];
}
else
{
schema = await RegistryClient.GetSchemaAsync(id);
cache.AddOrUpdate(id, schema, (key, oldValue) => schema);
}
var confluentSchema = new ConfluentSchema(schema);
var result = AvroConvert.DeserializeHeadless <T>(stream.ToArray(), confluentSchema.SchemaString);
return(result);
}
}
public T Deserialize(ReadOnlySpan <byte> data, bool isNull, SerializationContext context)
{
var dataArray = data.ToArray();
var dataWithoutMagicNumber = dataArray.Skip(5);
var result = AvroConvert.DeserializeHeadless <T>(dataWithoutMagicNumber.ToArray(), _schema);
return(result);
}
public void Component_SerializeHeadlessBiggerObjectAndReadSmaller_NoError()
{
//Arrange
VeryComplexClass toSerialize = _fixture.Create <VeryComplexClass>();
string schema = AvroConvert.GenerateSchema(typeof(VeryComplexClass));
//Act
var result = AvroConvert.SerializeHeadless(toSerialize, schema);
var deserialized = AvroConvert.DeserializeHeadless <VeryComplexClass>(result, schema);
//Assert
Assert.NotNull(result);
Assert.NotNull(deserialized);
Assert.Equal(toSerialize, deserialized);
}
public void Component_DeserializeWithMissingFields_NoError()
{
//Arrange
BaseTestClass toSerialize = _fixture.Create <BaseTestClass>();
string schema = AvroConvert.GenerateSchema(typeof(BaseTestClass));
//Act
var result = AvroConvert.SerializeHeadless(toSerialize, schema);
var deserialized = AvroConvert.DeserializeHeadless <ReducedBaseTestClass>(result, schema);
//Assert
Assert.NotNull(result);
Assert.NotNull(deserialized);
Assert.Equal(toSerialize.justSomeProperty, deserialized.justSomeProperty);
}
public static async Task Run(
[EventHubTrigger(
Constants.EVENT_HUB_QA_TELEMETRY_AVRO,
ConsumerGroup = Constants.EVENT_HUB_CONSUMER_GROUP,
Connection = "PACKAGING_QA_TELEMETRY_AVRO_EVENTHUB"
)] EventData[] events,
[CosmosDB(
databaseName: Constants.COSMOS_DB_DATABASE_NAME,
collectionName: Constants.COSMOS_DB_CONTAINER_NAME,
ConnectionStringSetting = "FACTORY_COSMOS_DB"
)] IAsyncCollector <object> items,
ILogger log)
{
var exceptions = new List <Exception>();
TelemetryAvro deserialized = null;
foreach (EventData eventData in events)
{
try
{
deserialized = AvroConvert.DeserializeHeadless <TelemetryAvro>(eventData.Body.Array, avroTelemetrySchema);
deserialized.DeviceId = eventData.SystemProperties["iothub-connection-device-id"].ToString();
await items.AddAsync(deserialized);
}
catch (Exception e)
{
// We need to keep processing the rest of the batch - capture this exception and continue.
// Also, consider capturing details of the message that failed processing so it can be processed again later.
exceptions.Add(e);
}
}
// Once processing of the batch is complete, if any messages in the batch failed processing throw an exception so that there is a record of the failure.
if (exceptions.Count > 1)
{
throw new AggregateException(exceptions);
}
if (exceptions.Count == 1)
{
throw exceptions.Single();
}
}
public void Component_SerializeHeadlessBiggerObjectAndReadSmaller_NoError()
{
//Arrange
ExtendedBaseTestClass toSerialize = _fixture.Create <ExtendedBaseTestClass>();
string schema = AvroConvert.GenerateSchema(typeof(BaseTestClass));
//Act
var result = AvroConvert.SerializeHeadless(toSerialize, schema);
var deserialized = AvroConvert.DeserializeHeadless <BaseTestClass>(result, schema);
//Assert
Assert.NotNull(result);
Assert.NotNull(deserialized);
Assert.Equal(toSerialize.andLongProperty, deserialized.andLongProperty);
Assert.Equal(toSerialize.justSomeProperty, deserialized.justSomeProperty);
}
public static void Invoke()
{
//Arrange
var fixture = new Fixture();
Dataset dataset = fixture.Create <Dataset>();
var schema = AvroConvert.GenerateSchema(typeof(Dataset));
Schema apacheSchema = Schema.Parse(schema);
//AvroConvert to Apache
var avroConvertSerialized = AvroConvert.SerializeHeadless(dataset, schema);
Dataset apacheDeserialized;
using (var ms = new MemoryStream(avroConvertSerialized))
{
var apacheReader = new GenericDatumReader <GenericRecord>(apacheSchema, apacheSchema);
var decoder = new BinaryDecoder(ms);
apacheDeserialized = (ApacheAvroHelpers.Decreate <Dataset>(apacheReader.Read(null, decoder)));
}
Contract.Assert(dataset == apacheDeserialized);
//Apache to AvroConvert
MemoryStream apacheAvroSerializeStream = new MemoryStream();
var encoder = new BinaryEncoder(apacheAvroSerializeStream);
var apacheWriter = new GenericDatumWriter <GenericRecord>(apacheSchema);
apacheWriter.Write(ApacheAvroHelpers.Create(dataset, apacheSchema), encoder);
var apacheSerialized = apacheAvroSerializeStream.ToArray();
var avroConvertDeserialized = AvroConvert.DeserializeHeadless <Dataset>(apacheSerialized);
Contract.Assert(dataset == avroConvertDeserialized);
}
private static BenchmarkResult RunBenchmark(Dataset[] datasets, string schema)
{
var result = new BenchmarkResult();
Stopwatch stopwatch = Stopwatch.StartNew();
//Serialize Apache.Avro
MemoryStream apacheAvroSerializeStream = new MemoryStream();
var encoder = new BinaryEncoder(apacheAvroSerializeStream);
var apacheSchema = Schema.Parse(AvroConvert.GenerateSchema(typeof(Dataset)));
var apacheWriter = new GenericDatumWriter <GenericRecord>(apacheSchema);
foreach (var dataset in datasets)
{
apacheWriter.Write(ApacheAvroHelpers.Create(dataset, apacheSchema), encoder);
}
var apacheAvro = apacheAvroSerializeStream.ToArray();
result.ApacheAvroSerializeTime = stopwatch.ElapsedMilliseconds;
stopwatch.Restart();
//Deserialize Apache.Avro
List <Dataset> apacheResult = new List <Dataset>();
using (var ms = new MemoryStream(apacheAvro))
{
apacheSchema = Schema.Parse(AvroConvert.GenerateSchema(typeof(Dataset)));
var apacheReader = new GenericDatumReader <GenericRecord>(apacheSchema, apacheSchema);
var decoder = new BinaryDecoder(ms);
foreach (var dataset in datasets)
{
apacheResult.Add(ApacheAvroHelpers.Decreate <Dataset>(apacheReader.Read(null, decoder)));
}
}
result.ApacheAvroDeserializeTime = stopwatch.ElapsedMilliseconds;
stopwatch.Restart();
//Serialize AvroConvert Headerless
var avroHeadless = AvroConvert.SerializeHeadless(datasets, schema);
result.AvroConvertHeadlessSerializeTime = stopwatch.ElapsedMilliseconds;
stopwatch.Restart();
//Deserialize AvroConvert Headerless
AvroConvert.DeserializeHeadless <List <Dataset> >(avroHeadless, schema);
result.AvroConvertHeadlessDeserializeTime = stopwatch.ElapsedMilliseconds;
stopwatch.Restart();
//Serialize AvroConvert Gzip
var avroGzip = AvroConvert.Serialize(datasets, CodecType.GZip);
result.AvroConvertGzipSerializeTime = stopwatch.ElapsedMilliseconds;
stopwatch.Restart();
//Deserialize AvroConvert Gzip
AvroConvert.Deserialize <Dataset[]>(avroGzip);
result.AvroConvertGzipDeserializeTime = stopwatch.ElapsedMilliseconds;
stopwatch.Restart();
//Serialize AvroConvert vNext
var newAvro = AvroConvertToUpdate.AvroConvert.SerializeHeadless(datasets, schema);
result.AvroConvertVNextHeadlessSerializeTime = stopwatch.ElapsedMilliseconds;
stopwatch.Restart();
//Deserialize AvroConvert vNext
AvroConvertToUpdate.AvroConvert.DeserializeHeadless <Dataset[]>(newAvro, schema);
result.AvroConvertVNextHeadlessDeserializeTime = stopwatch.ElapsedMilliseconds;
stopwatch.Stop();
//Serialize AvroConvert vNext Gzip
var newAvroGzip = AvroConvertToUpdate.AvroConvert.Serialize(datasets, AvroConvertToUpdate.Codec.CodecType.GZip);
result.AvroConvertVNextGzipSerializeTime = stopwatch.ElapsedMilliseconds;
stopwatch.Restart();
//Deserialize AvroConvert vNext Gzip
AvroConvertToUpdate.AvroConvert.Deserialize <Dataset[]>(newAvroGzip);
result.AvroConvertVNextGzipDeserializeTime = stopwatch.ElapsedMilliseconds;
stopwatch.Stop();
//Size
result.ApacheAvroSize = apacheAvro.Length;
result.AvroConvertHeadlessSize = avroHeadless.Length;
result.AvroConvertGzipSize = avroGzip.Length;
result.AvroConvertVNextSize = newAvro.Length;
result.AvroConvertVNextGzipSize = newAvroGzip.Length;
return(result);
}