private void RunAssertionAvroSchemaWAnnotation(EPServiceProvider epService)
{
var schema = SchemaBuilder.Union(TypeBuilder.IntType(), TypeBuilder.StringType());
var schemaAsString = SchemaToJsonEncoder.Encode(schema).ToString(Formatting.None);
var epl = "@AvroSchemaField(Name='carId',Schema='" + schemaAsString + "') create avro schema MyEvent(carId object)";
epService.EPAdministrator.CreateEPL(epl);
Log.Info(schema.ToString());
}
public override void Run(EPServiceProvider epService)
{
// schema from statement
var epl = EventRepresentationChoice.AVRO.GetAnnotationText() + "select 1 as carId, 'abc' as carType from System.Object";
var stmt = epService.EPAdministrator.CreateEPL(epl);
var schema = (Schema)((AvroSchemaEventType)stmt.EventType).Schema;
var schemaAsString = SchemaToJsonEncoder.Encode(schema).ToString(Formatting.None);
Assert.AreEqual("{\"type\":\"record\",\"name\":\"anonymous_1_result_\",\"fields\":[{\"name\":\"carId\",\"type\":\"int\"},{\"name\":\"carType\",\"type\":{\"type\":\"string\",\"avro.string\":\"string\"}}]}", schemaAsString);
stmt.Dispose();
// schema to-string Avro
var schemaTwo = SchemaBuilder.Record("MyAvroEvent",
TypeBuilder.RequiredInt("carId"),
TypeBuilder.Field("carType",
TypeBuilder.StringType(
TypeBuilder.Property(AvroConstant.PROP_STRING_KEY, AvroConstant.PROP_STRING_VALUE))));
var schemaTwoAsString = SchemaToJsonEncoder.Encode(schemaTwo).ToString(Formatting.None);
Assert.AreEqual("{\"type\":\"record\",\"name\":\"MyAvroEvent\",\"fields\":[{\"name\":\"carId\",\"type\":\"int\"},{\"name\":\"carType\",\"type\":{\"type\":\"string\",\"avro.string\":\"string\"}}]}", schemaTwoAsString);
// Define CarLocUpdateEvent event type (example for runtime-configuration interface)
var schemaThree = SchemaBuilder.Record("CarLocUpdateEvent",
TypeBuilder.Field("carId",
TypeBuilder.StringType(
TypeBuilder.Property(AvroConstant.PROP_STRING_KEY, AvroConstant.PROP_STRING_VALUE))),
TypeBuilder.RequiredInt("direction"));
var avroEvent = new ConfigurationEventTypeAvro(schemaThree);
epService.EPAdministrator.Configuration.AddEventTypeAvro("CarLocUpdateEvent", avroEvent);
stmt = epService.EPAdministrator.CreateEPL("select count(*) from CarLocUpdateEvent(direction = 1)#time(1 min)");
var listener = new SupportUpdateListener();
stmt.Events += listener.Update;
var @event = new GenericRecord(schemaThree);
@event.Put("carId", "A123456");
@event.Put("direction", 1);
epService.EPRuntime.SendEventAvro(@event, "CarLocUpdateEvent");
Assert.AreEqual(1L, listener.AssertOneGetNewAndReset().Get("count(*)"));
}
public void TestSampleConfigDocOutputSchema()
{
// schema from statement
string epl = EventRepresentationChoice.AVRO.GetAnnotationText() + "select 1 as carId, 'abc' as carType from " + Name.Of <object>();
EPStatement stmt = _epService.EPAdministrator.CreateEPL(epl);
Schema schema = (Schema)((AvroSchemaEventType)stmt.EventType).Schema;
String schemaAsString = SchemaToJsonEncoder.Encode(schema).ToString(Formatting.None);
Assert.AreEqual("{\"type\":\"record\",\"name\":\"anonymous_1_result_\",\"fields\":[{\"name\":\"carId\",\"type\":\"int\"},{\"name\":\"carType\",\"type\":{\"type\":\"string\",\"avro.string\":\"string\"}}]}", schemaAsString);
stmt.Dispose();
// schema to-string Avro
Schema schemaTwo = SchemaBuilder.Record(
"MyAvroEvent",
TypeBuilder.RequiredInt("carId"),
TypeBuilder.Field((string)"carType", TypeBuilder.TypeWithProperty("string", AvroConstant.PROP_STRING_KEY, AvroConstant.PROP_STRING_VALUE)));
String schemaTwoAsString = SchemaToJsonEncoder.Encode(schemaTwo).ToString(Formatting.None);
Assert.AreEqual("{\"type\":\"record\",\"name\":\"MyAvroEvent\",\"fields\":[{\"name\":\"carId\",\"type\":\"int\"},{\"name\":\"carType\",\"type\":{\"type\":\"string\",\"avro.string\":\"string\"}}]}", schemaTwoAsString);
// Define CarLocUpdateEvent event type (example for runtime-configuration interface)
RecordSchema schemaThree = SchemaBuilder.Record(
"CarLocUpdateEvent",
TypeBuilder.Field((string)"carId", TypeBuilder.TypeWithProperty("string", AvroConstant.PROP_STRING_KEY, AvroConstant.PROP_STRING_VALUE)),
TypeBuilder.RequiredInt("direction"));
ConfigurationEventTypeAvro avroEvent = new ConfigurationEventTypeAvro(schemaThree);
_epService.EPAdministrator.Configuration.AddEventTypeAvro("CarLocUpdateEvent", avroEvent);
stmt = _epService.EPAdministrator.CreateEPL("select count(*) from CarLocUpdateEvent(direction = 1)#time(1 min)");
SupportUpdateListener listener = new SupportUpdateListener();
stmt.AddListener(listener);
GenericRecord @event = new GenericRecord(schemaThree);
@event.Put("carId", "A123456");
@event.Put("direction", 1);
_epService.EPRuntime.SendEventAvro(@event, "CarLocUpdateEvent");
Assert.AreEqual(1L, listener.AssertOneGetNewAndReset().Get("count(*)"));
}
/// <summary>
/// Decompiles the schema into a json object.
/// </summary>
/// <param name="schema">The schema.</param>
/// <returns></returns>
public static JToken ToJsonObject(this Schema schema)
{
var jsonRepr = SchemaToJsonEncoder.Encode(schema);
return(jsonRepr);
}
