// Copyright 2016 Google Inc.
//
// 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
//
//     http://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 google.logging.v2;

import "google/api/annotations.proto";
import "google/protobuf/empty.proto";
import "google/protobuf/timestamp.proto";

option java_multiple_files = true;
option java_outer_classname = "LoggingConfig";
option java_package = "com.google.logging.v2";

option go_package = "google.golang.org/genproto/googleapis/logging/v2";

// Service for configuring sinks used to export log entries outside Stackdriver
// Logging.
service ConfigServiceV2 {
  // Lists sinks.
  rpc ListSinks(ListSinksRequest) returns (ListSinksResponse) {
    option (google.api.http) = { get: "/v2beta1/{parent=projects/*}/sinks" };
  }

  // Gets a sink.
  rpc GetSink(GetSinkRequest) returns (LogSink) {
    option (google.api.http) = { get: "/v2beta1/{sink_name=projects/*/sinks/*}" };
  }

  // Creates a sink.
  rpc CreateSink(CreateSinkRequest) returns (LogSink) {
    option (google.api.http) = { post: "/v2beta1/{parent=projects/*}/sinks" body: "sink" };
  }

  // Creates or updates a sink.
  rpc UpdateSink(UpdateSinkRequest) returns (LogSink) {
    option (google.api.http) = { put: "/v2beta1/{sink_name=projects/*/sinks/*}" body: "sink" };
  }

  // Deletes a sink.
  rpc DeleteSink(DeleteSinkRequest) returns (google.protobuf.Empty) {
    option (google.api.http) = { delete: "/v2beta1/{sink_name=projects/*/sinks/*}" };
  }
}

// Describes a sink used to export log entries outside Stackdriver Logging.
message LogSink {
  // Available log entry formats. Log entries can be written to Cloud
  // Logging in either format and can be exported in either format.
  // Version 2 is the preferred format.
  enum VersionFormat {
    // An unspecified version format will default to V2.
    VERSION_FORMAT_UNSPECIFIED = 0;

    // `LogEntry` version 2 format.
    V2 = 1;

    // `LogEntry` version 1 format.
    V1 = 2;
  }

  // Required. The client-assigned sink identifier. Example:
  // `"my-severe-errors-to-pubsub"`.
  // Sink identifiers are limited to 1000 characters
  // and can include only the following characters: `A-Z`, `a-z`,
  // `0-9`, and the special characters `_-.`.
  string name = 1;

  // The export destination. See
  // [Exporting Logs With Sinks](/logging/docs/api/tasks/exporting-logs).
  // Examples: `"storage.googleapis.com/a-bucket"`,
  // `"bigquery.googleapis.com/projects/a-project-id/datasets/a-dataset"`.
  string destination = 3;

  // An [advanced logs filter](/logging/docs/view/advanced_filters). Only
  // log entries matching that filter are exported. The filter must be
  // consistent with the log entry format specified by the
  // `outputVersionFormat` parameter, regardless of the format of the
  // log entry that was originally written to Stackdriver Logging.
  // Example (V2 format):
  // `"logName=projects/my-projectid/logs/syslog AND severity>=ERROR"`.
  string filter = 5;

  // The log entry version to use for this sink's exported log entries.
  // This version does not have to correspond to the version of the log entry
  // when it was written to Stackdriver Logging.
  VersionFormat output_version_format = 6;
}

// The parameters to `ListSinks`.
message ListSinksRequest {
  // Required. The resource name containing the sinks.
  // Example: `"projects/my-logging-project"`.
  string parent = 1;

  // Optional. If the `pageToken` parameter is supplied, then the next page of
  // results is retrieved.  The `pageToken` parameter must be set to the value
  // of the `nextPageToken` from the previous response.
  // The value of `parent` must be the same as in the previous request.
  string page_token = 2;

  // Optional. The maximum number of results to return from this request.
  // You must check for presence of `nextPageToken` to determine if additional
  // results are available, which you can retrieve by passing the
  // `nextPageToken` value as the `pageToken` parameter in the next request.
  int32 page_size = 3;
}

// Result returned from `ListSinks`.
message ListSinksResponse {
  // A list of sinks.
  repeated LogSink sinks = 1;

  // If there are more results than were returned, then `nextPageToken` is
  // included in the response.  To get the next set of results, call this
  // method again using the value of `nextPageToken` as `pageToken`.
  string next_page_token = 2;
}

// The parameters to `GetSink`.
message GetSinkRequest {
  // The resource name of the sink to return.
  // Example: `"projects/my-project-id/sinks/my-sink-id"`.
  string sink_name = 1;
}

// The parameters to `CreateSink`.
message CreateSinkRequest {
  // The resource in which to create the sink.
  // Example: `"projects/my-project-id"`.
  //
  // The new sink must be provided in the request.
  string parent = 1;

  // The new sink, which must not have an identifier that already
  // exists.
  LogSink sink = 2;
}

// The parameters to `UpdateSink`.
message UpdateSinkRequest {
  // The resource name of the sink to update.
  // Example: `"projects/my-project-id/sinks/my-sink-id"`.
  //
  // The updated sink must be provided in the request and have the
  // same name that is specified in `sinkName`.  If the sink does not
  // exist, it is created.
  string sink_name = 1;

  // The updated sink, whose name must be the same as the sink
  // identifier in `sinkName`.  If `sinkName` does not exist, then
  // this method creates a new sink.
  LogSink sink = 2;
}

// The parameters to `DeleteSink`.
message DeleteSinkRequest {
  // The resource name of the sink to delete.
  // Example: `"projects/my-project-id/sinks/my-sink-id"`.
  string sink_name = 1;
}