snapshot of https://github.com/ory/kratos.git (master, 2026-09-15; blobs > 131072B omitted)

oryx/watcherx/event.go

@@ -0,0 +1,109 @@
+// Copyright © 2023 Ory Corp
+// SPDX-License-Identifier: Apache-2.0
+
+package watcherx
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+)
+
+type (
+	Event interface {
+		// MarshalJSON is required to work multiple times
+		json.Marshaler
+
+		Reader() io.Reader
+		Source() string
+		String() string
+		setSource(string)
+	}
+	source     string
+	ErrorEvent struct {
+		error
+		source
+	}
+	ChangeEvent struct {
+		data []byte
+		source
+	}
+	RemoveEvent struct {
+		source
+	}
+	serialEventType string
+	serialEvent     struct {
+		Type   serialEventType `json:"type"`
+		Data   []byte          `json:"data"`
+		Source source          `json:"source"`
+	}
+)
+
+func NewErrorEvent(err error, source_ string) *ErrorEvent {
+	return &ErrorEvent{
+		error:  err,
+		source: source(source_),
+	}
+}
+
+const (
+	serialTypeChange serialEventType = "change"
+	serialTypeRemove serialEventType = "remove"
+	serialTypeError  serialEventType = "error"
+)
+
+func (e *ErrorEvent) Reader() io.Reader {
+	return bytes.NewBufferString(e.Error())
+}
+
+func (e *ErrorEvent) MarshalJSON() ([]byte, error) {
+	return json.Marshal(serialEvent{
+		Type:   serialTypeError,
+		Data:   []byte(e.Error()),
+		Source: e.source,
+	})
+}
+
+func (e *ErrorEvent) String() string {
+	return fmt.Sprintf("error: %+v; source: %s", e.error, e.source)
+}
+
+func (e source) Source() string {
+	return string(e)
+}
+
+func (e *source) setSource(nsrc string) {
+	*e = source(nsrc)
+}
+
+func (e *ChangeEvent) Reader() io.Reader {
+	return bytes.NewBuffer(e.data)
+}
+
+func (e *ChangeEvent) MarshalJSON() ([]byte, error) {
+	return json.Marshal(serialEvent{
+		Type:   serialTypeChange,
+		Data:   e.data,
+		Source: e.source,
+	})
+}
+
+func (e *ChangeEvent) String() string {
+	return fmt.Sprintf("data: %s; source: %s", e.data, e.source)
+}
+
+func (e *RemoveEvent) Reader() io.Reader {
+	return nil
+}
+
+func (e *RemoveEvent) MarshalJSON() ([]byte, error) {
+	return json.Marshal(serialEvent{
+		Type:   serialTypeRemove,
+		Source: e.source,
+	})
+}
+
+func (e *RemoveEvent) String() string {
+	return fmt.Sprintf("removed source: %s", e.source)
+}