Move packages to proejct/pkg to follow go project folder structure convention (#1190)

pkg/controller/client/client.go

@@ -0,0 +1,115 @@
+/*
+Copyright 2016 The Fission 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 client
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"strings"
+
+	ferror "github.com/fission/fission/pkg/error"
+	"github.com/fission/fission/pkg/info"
+)
+
+type (
+	Client struct {
+		Url string
+	}
+)
+
+func MakeClient(serverUrl string) *Client {
+	return &Client{Url: strings.TrimSuffix(serverUrl, "/")}
+}
+
+func (c *Client) delete(relativeUrl string) error {
+	req, err := http.NewRequest("DELETE", c.url(relativeUrl), nil)
+	if err != nil {
+		return err
+	}
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		body, err := ioutil.ReadAll(resp.Body)
+		if err != nil {
+			return errors.New("Delete failed")
+		} else {
+			return errors.New("Delete failed: " + string(body))
+		}
+	}
+
+	return nil
+}
+
+func (c *Client) put(relativeUrl string, contentType string, body []byte) (*http.Response, error) {
+	req, err := http.NewRequest("PUT", c.url(relativeUrl), bytes.NewReader(body))
+	if err != nil {
+		return nil, err
+	}
+	req.Header.Set("Content-type", contentType)
+	return http.DefaultClient.Do(req)
+}
+
+func (c *Client) url(relativeUrl string) string {
+	return c.Url + "/v2/" + relativeUrl
+}
+
+func (c *Client) handleResponse(resp *http.Response) ([]byte, error) {
+	if resp.StatusCode != 200 {
+		return nil, ferror.MakeErrorFromHTTP(resp)
+	}
+	body, err := ioutil.ReadAll(resp.Body)
+	return body, err
+}
+
+func (c *Client) handleCreateResponse(resp *http.Response) ([]byte, error) {
+	if resp.StatusCode != 201 {
+		return nil, ferror.MakeErrorFromHTTP(resp)
+	}
+	body, err := ioutil.ReadAll(resp.Body)
+	return body, err
+}
+
+func (c *Client) ServerInfo() (*info.ServerInfo, error) {
+	url := fmt.Sprintf(c.Url)
+	resp, err := http.Get(url)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	info := &info.ServerInfo{}
+	err = json.Unmarshal(body, info)
+	if err != nil {
+		return nil, err
+	}
+
+	return info, nil
+}