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authorMatthew Heon <matthew.heon@gmail.com>2017-11-01 11:24:59 -0400
committerMatthew Heon <matthew.heon@gmail.com>2017-11-01 11:24:59 -0400
commita031b83a09a8628435317a03f199cdc18b78262f (patch)
treebc017a96769ce6de33745b8b0b1304ccf38e9df0 /vendor/k8s.io/client-go/rest/watch
parent2b74391cd5281f6fdf391ff8ad50fd1490f6bf89 (diff)
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Initial checkin from CRI-O repo
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
Diffstat (limited to 'vendor/k8s.io/client-go/rest/watch')
-rw-r--r--vendor/k8s.io/client-go/rest/watch/decoder.go72
-rw-r--r--vendor/k8s.io/client-go/rest/watch/encoder.go56
2 files changed, 128 insertions, 0 deletions
diff --git a/vendor/k8s.io/client-go/rest/watch/decoder.go b/vendor/k8s.io/client-go/rest/watch/decoder.go
new file mode 100644
index 000000000..73bb63add
--- /dev/null
+++ b/vendor/k8s.io/client-go/rest/watch/decoder.go
@@ -0,0 +1,72 @@
+/*
+Copyright 2014 The Kubernetes 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
+
+ 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.
+*/
+
+package versioned
+
+import (
+ "fmt"
+
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ "k8s.io/apimachinery/pkg/runtime"
+ "k8s.io/apimachinery/pkg/runtime/serializer/streaming"
+ "k8s.io/apimachinery/pkg/watch"
+)
+
+// Decoder implements the watch.Decoder interface for io.ReadClosers that
+// have contents which consist of a series of watchEvent objects encoded
+// with the given streaming decoder. The internal objects will be then
+// decoded by the embedded decoder.
+type Decoder struct {
+ decoder streaming.Decoder
+ embeddedDecoder runtime.Decoder
+}
+
+// NewDecoder creates an Decoder for the given writer and codec.
+func NewDecoder(decoder streaming.Decoder, embeddedDecoder runtime.Decoder) *Decoder {
+ return &Decoder{
+ decoder: decoder,
+ embeddedDecoder: embeddedDecoder,
+ }
+}
+
+// Decode blocks until it can return the next object in the reader. Returns an error
+// if the reader is closed or an object can't be decoded.
+func (d *Decoder) Decode() (watch.EventType, runtime.Object, error) {
+ var got metav1.WatchEvent
+ res, _, err := d.decoder.Decode(nil, &got)
+ if err != nil {
+ return "", nil, err
+ }
+ if res != &got {
+ return "", nil, fmt.Errorf("unable to decode to metav1.Event")
+ }
+ switch got.Type {
+ case string(watch.Added), string(watch.Modified), string(watch.Deleted), string(watch.Error):
+ default:
+ return "", nil, fmt.Errorf("got invalid watch event type: %v", got.Type)
+ }
+
+ obj, err := runtime.Decode(d.embeddedDecoder, got.Object.Raw)
+ if err != nil {
+ return "", nil, fmt.Errorf("unable to decode watch event: %v", err)
+ }
+ return watch.EventType(got.Type), obj, nil
+}
+
+// Close closes the underlying r.
+func (d *Decoder) Close() {
+ d.decoder.Close()
+}
diff --git a/vendor/k8s.io/client-go/rest/watch/encoder.go b/vendor/k8s.io/client-go/rest/watch/encoder.go
new file mode 100644
index 000000000..e55aa12d9
--- /dev/null
+++ b/vendor/k8s.io/client-go/rest/watch/encoder.go
@@ -0,0 +1,56 @@
+/*
+Copyright 2014 The Kubernetes 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
+
+ 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.
+*/
+
+package versioned
+
+import (
+ "encoding/json"
+
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ "k8s.io/apimachinery/pkg/runtime"
+ "k8s.io/apimachinery/pkg/runtime/serializer/streaming"
+ "k8s.io/apimachinery/pkg/watch"
+)
+
+// Encoder serializes watch.Events into io.Writer. The internal objects
+// are encoded using embedded encoder, and the outer Event is serialized
+// using encoder.
+// TODO: this type is only used by tests
+type Encoder struct {
+ encoder streaming.Encoder
+ embeddedEncoder runtime.Encoder
+}
+
+func NewEncoder(encoder streaming.Encoder, embeddedEncoder runtime.Encoder) *Encoder {
+ return &Encoder{
+ encoder: encoder,
+ embeddedEncoder: embeddedEncoder,
+ }
+}
+
+// Encode writes an event to the writer. Returns an error
+// if the writer is closed or an object can't be encoded.
+func (e *Encoder) Encode(event *watch.Event) error {
+ data, err := runtime.Encode(e.embeddedEncoder, event.Object)
+ if err != nil {
+ return err
+ }
+ // FIXME: get rid of json.RawMessage.
+ return e.encoder.Encode(&metav1.WatchEvent{
+ Type: string(event.Type),
+ Object: runtime.RawExtension{Raw: json.RawMessage(data)},
+ })
+}