//

// Copyright 2020 The Feast Authors

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

// https://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

//

syntax = "proto3";

package feast.core;

option go_package = "github.com/feast-dev/feast/go/protos/feast/core";

option java_outer_classname = "DataFormatProto";

option java_package = "feast.proto.core";

// Defines the file format encoding the features/entity data in files

message FileFormat {

// Defines options for the Parquet data format

message ParquetFormat {}

// Defines options for delta data format

message DeltaFormat {}

oneof format {

ParquetFormat parquet_format = 1;

DeltaFormat delta_format = 2;

}

}

// Defines the data format encoding features/entity data in data streams

message StreamFormat {

// Defines options for the protobuf data format

message ProtoFormat {

// Classpath to the generated Java Protobuf class that can be used to decode

// Feature data from the obtained stream message

string class_path = 1;

}

// Defines options for the avro data format

message AvroFormat {

// Optional if used in a File DataSource as schema is embedded in avro file.

// Specifies the schema of the Avro message as JSON string.

string schema_json = 1;

}

message JsonFormat {

string schema_json = 1;

}

// Specifies the data format and format specific options

oneof format {

AvroFormat avro_format = 1;

ProtoFormat proto_format = 2;

JsonFormat json_format = 3;

}

}