Rework client.Interface

pkg/client/pods.go

@@ -0,0 +1,89 @@
+/*
+Copyright 2014 Google Inc. 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 client
+
+import (
+	"fmt"
+
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/labels"
+)
+
+// PodsNamespacer has methods to work with Pod resources in a namespace
+type PodsNamespacer interface {
+	Pods(namespace string) PodInterface
+}
+
+// PodInterface has methods to work with Pod resources.
+type PodInterface interface {
+	List(selector labels.Selector) (*api.PodList, error)
+	Get(name string) (*api.Pod, error)
+	Delete(name string) error
+	Create(pod *api.Pod) (*api.Pod, error)
+	Update(pod *api.Pod) (*api.Pod, error)
+}
+
+// PodsClient implements PodsNamespacer interface
+type PodsClient struct {
+	r  *Client
+	ns string
+}
+
+// NewPodsClient returns a PodsClient
+func NewPodsClient(c *Client, namespace string) *PodsClient {
+	return &PodsClient{
+		r:  c,
+		ns: namespace,
+	}
+}
+
+// ListPods takes a selector, and returns the list of pods that match that selector.
+func (c *PodsClient) List(selector labels.Selector) (result *api.PodList, err error) {
+	result = &api.PodList{}
+	err = c.r.Get().Namespace(c.ns).Path("pods").SelectorParam("labels", selector).Do().Into(result)
+	return
+}
+
+// GetPod takes the name of the pod, and returns the corresponding Pod object, and an error if it occurs
+func (c *PodsClient) Get(name string) (result *api.Pod, err error) {
+	result = &api.Pod{}
+	err = c.r.Get().Namespace(c.ns).Path("pods").Path(name).Do().Into(result)
+	return
+}
+
+// DeletePod takes the name of the pod, and returns an error if one occurs
+func (c *PodsClient) Delete(name string) error {
+	return c.r.Delete().Namespace(c.ns).Path("pods").Path(name).Do().Error()
+}
+
+// CreatePod takes the representation of a pod.  Returns the server's representation of the pod, and an error, if it occurs.
+func (c *PodsClient) Create(pod *api.Pod) (result *api.Pod, err error) {
+	result = &api.Pod{}
+	err = c.r.Post().Namespace(c.ns).Path("pods").Body(pod).Do().Into(result)
+	return
+}
+
+// UpdatePod takes the representation of a pod to update.  Returns the server's representation of the pod, and an error, if it occurs.
+func (c *PodsClient) Update(pod *api.Pod) (result *api.Pod, err error) {
+	result = &api.Pod{}
+	if len(pod.ResourceVersion) == 0 {
+		err = fmt.Errorf("invalid update object, missing resource version: %v", pod)
+		return
+	}
+	err = c.r.Put().Namespace(c.ns).Path("pods").Path(pod.Name).Body(pod).Do().Into(result)
+	return
+}