mirror of https://github.com/harness/drone.git
61 lines
2.0 KiB
Go
61 lines
2.0 KiB
Go
// Copyright 2023 Harness, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package events
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import (
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"bytes"
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"context"
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"encoding/gob"
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"fmt"
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"time"
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)
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// GenericReporter represents an event reporter that supports sending typesafe messages
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// for an arbitrary set of custom events within an event category using the ReporterSendEvent method.
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// NOTE: Optimally this should be an interface with SendEvent[T] method, but that's not possible in go.
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type GenericReporter struct {
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producer StreamProducer
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category string
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}
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// ReportEvent reports an event using the provided GenericReporter.
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// Returns the reported event's ID in case of success.
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// NOTE: This call is blocking until the event was send (not until it was processed).
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//
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//nolint:revive // emphasize that this is meant to be an operation on *GenericReporter
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func ReporterSendEvent[T interface{}](reporter *GenericReporter, ctx context.Context,
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eventType EventType, payload T) (string, error) {
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streamID := getStreamID(reporter.category, eventType)
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event := Event[T]{
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ID: "", // will be set by GenericReader
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Timestamp: time.Now(),
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Payload: payload,
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}
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buff := &bytes.Buffer{}
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encoder := gob.NewEncoder(buff)
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if err := encoder.Encode(&event); err != nil {
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return "", fmt.Errorf("failed to encode payload: %w", err)
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}
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streamPayload := map[string]interface{}{
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streamPayloadKey: buff.Bytes(),
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}
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// We are using the message ID as event ID.
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return reporter.producer.Send(ctx, streamID, streamPayload)
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}
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