mirror of https://github.com/docker/cli.git
57 lines
1.7 KiB
Go
57 lines
1.7 KiB
Go
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/*
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Copyright 2014 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package versioned
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import (
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"encoding/json"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/serializer/streaming"
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"k8s.io/apimachinery/pkg/watch"
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)
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// Encoder serializes watch.Events into io.Writer. The internal objects
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// are encoded using embedded encoder, and the outer Event is serialized
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// using encoder.
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// TODO: this type is only used by tests
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type Encoder struct {
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encoder streaming.Encoder
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embeddedEncoder runtime.Encoder
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}
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func NewEncoder(encoder streaming.Encoder, embeddedEncoder runtime.Encoder) *Encoder {
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return &Encoder{
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encoder: encoder,
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embeddedEncoder: embeddedEncoder,
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}
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}
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// Encode writes an event to the writer. Returns an error
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// if the writer is closed or an object can't be encoded.
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func (e *Encoder) Encode(event *watch.Event) error {
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data, err := runtime.Encode(e.embeddedEncoder, event.Object)
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if err != nil {
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return err
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}
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// FIXME: get rid of json.RawMessage.
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return e.encoder.Encode(&metav1.WatchEvent{
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Type: string(event.Type),
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Object: runtime.RawExtension{Raw: json.RawMessage(data)},
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})
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}
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