Vendor dependencies

vendor/k8s.io/kubernetes/pkg/watch/json/decoder.go

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+/*
+Copyright 2014 The Kubernetes Authors All rights reserved.
+
+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 json
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+
+	"k8s.io/kubernetes/pkg/runtime"
+	"k8s.io/kubernetes/pkg/watch"
+)
+
+// Decoder implements the watch.Decoder interface for io.ReadClosers that
+// have contents which consist of a series of watchEvent objects encoded via JSON.
+// It will decode any object registered in the supplied codec.
+type Decoder struct {
+	r       io.ReadCloser
+	decoder *json.Decoder
+	codec   runtime.Codec
+}
+
+// NewDecoder creates an Decoder for the given writer and codec.
+func NewDecoder(r io.ReadCloser, codec runtime.Codec) *Decoder {
+	return &Decoder{
+		r:       r,
+		decoder: json.NewDecoder(r),
+		codec:   codec,
+	}
+}
+
+// Decode blocks until it can return the next object in the writer. Returns an error
+// if the writer is closed or an object can't be decoded.
+func (d *Decoder) Decode() (watch.EventType, runtime.Object, error) {
+	var got WatchEvent
+	if err := d.decoder.Decode(&got); err != nil {
+		return "", nil, err
+	}
+	switch got.Type {
+	case watch.Added, watch.Modified, watch.Deleted, watch.Error:
+	default:
+		return "", nil, fmt.Errorf("got invalid watch event type: %v", got.Type)
+	}
+
+	obj, err := runtime.Decode(d.codec, got.Object.Raw)
+	if err != nil {
+		return "", nil, fmt.Errorf("unable to decode watch event: %v", err)
+	}
+	return got.Type, obj, nil
+}
+
+// Close closes the underlying r.
+func (d *Decoder) Close() {
+	d.r.Close()
+}

vendor/k8s.io/kubernetes/pkg/watch/json/doc.go

@@ -0,0 +1,19 @@
+/*
+Copyright 2014 The Kubernetes Authors All rights reserved.
+
+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 json implements a simple encoder and decoder for streams
+// of watch events over io.Writer/Readers
+package json

vendor/k8s.io/kubernetes/pkg/watch/json/encoder.go

@@ -0,0 +1,53 @@
+/*
+Copyright 2014 The Kubernetes Authors All rights reserved.
+
+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 json
+
+import (
+	"encoding/json"
+	"io"
+
+	"k8s.io/kubernetes/pkg/runtime"
+	"k8s.io/kubernetes/pkg/watch"
+)
+
+// Encoder implements the json.Encoder interface for io.Writers that
+// should serialize WatchEvent objects into JSON. It will encode any object
+// registered in the supplied codec and return an error otherwies.
+type Encoder struct {
+	w       io.Writer
+	encoder *json.Encoder
+	codec   runtime.Encoder
+}
+
+// NewEncoder creates an Encoder for the given writer and codec
+func NewEncoder(w io.Writer, codec runtime.Encoder) *Encoder {
+	return &Encoder{
+		w:       w,
+		encoder: json.NewEncoder(w),
+		codec:   codec,
+	}
+}
+
+// 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 {
+	obj, err := Object(e.codec, event)
+	if err != nil {
+		return err
+	}
+	return e.encoder.Encode(obj)
+}

vendor/k8s.io/kubernetes/pkg/watch/json/types.go

@@ -0,0 +1,53 @@
+/*
+Copyright 2014 The Kubernetes Authors All rights reserved.
+
+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 json
+
+import (
+	"encoding/json"
+	"fmt"
+	"reflect"
+
+	"k8s.io/kubernetes/pkg/runtime"
+	"k8s.io/kubernetes/pkg/watch"
+)
+
+// WatchEvent objects are streamed from the api server in response to a watch request.
+// These are not API objects and may not be changed in a backward-incompatible way.
+// TODO: move to a public, versioned object now that RawExtension conversions are possible
+// in the schema.
+type WatchEvent struct {
+	// The type of the watch event; added, modified, deleted, or error.
+	Type watch.EventType `json:"type,omitempty" description:"the type of watch event; may be ADDED, MODIFIED, DELETED, or ERROR"`
+
+	// For added or modified objects, this is the new object; for deleted objects,
+	// it's the state of the object immediately prior to its deletion.
+	// For errors, it's an api.Status.
+	Object runtime.RawExtension `json:"object,omitempty" description:"the object being watched; will match the type of the resource endpoint or be a Status object if the type is ERROR"`
+}
+
+// Object converts a watch.Event into an appropriately serializable JSON object
+func Object(encoder runtime.Encoder, event *watch.Event) (interface{}, error) {
+	obj, ok := event.Object.(runtime.Object)
+	if !ok {
+		return nil, fmt.Errorf("the event object cannot be safely converted to JSON: %v", reflect.TypeOf(event.Object).Name())
+	}
+	data, err := runtime.Encode(encoder, obj)
+	if err != nil {
+		return nil, err
+	}
+	return &WatchEvent{event.Type, runtime.RawExtension{Raw: json.RawMessage(data)}}, nil
+}