/
client.go
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/
client.go
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// Copyright (c) 2018 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package namespace
import (
"errors"
"fmt"
"net/http"
"net/url"
"github.com/m3db/m3db-operator/pkg/m3admin"
"github.com/m3db/m3/src/query/generated/proto/admin"
"go.uber.org/zap"
)
const (
namespaceBaseURL = "/api/v1/services/m3db/namespace"
namespaceDeleteFmt = namespaceBaseURL + "/%s"
namespaceReadyURL = namespaceBaseURL + "/ready"
)
type namespaceClient struct {
client m3admin.Client
logger *zap.Logger
url string
}
// Option provides an interface that can be used for setter options with the
// constructor
type Option interface {
execute(*namespaceClient) error
}
type optionFn func(n *namespaceClient) error
func (fn optionFn) execute(n *namespaceClient) error {
return fn(n)
}
// WithURL is a setter to override the default url of m3coordinator
func WithURL(u string) Option {
return optionFn(func(n *namespaceClient) error {
if _, err := url.ParseRequestURI(u); err != nil {
return err
}
n.url = u
return nil
})
}
// WithLogger is a setter to override the default logger
func WithLogger(logger *zap.Logger) Option {
return optionFn(func(n *namespaceClient) error {
n.logger = logger
return nil
})
}
// WithClient configures an m3admin client.
func WithClient(cl m3admin.Client) Option {
return optionFn(func(n *namespaceClient) error {
n.client = cl
return nil
})
}
// NewClient constructs a new namespace client
func NewClient(opts ...Option) (Client, error) {
logger := zap.NewNop()
ns := &namespaceClient{
client: m3admin.NewClient(),
logger: logger,
}
for _, o := range opts {
if err := o.execute(ns); err != nil {
return nil, err
}
}
return ns, nil
}
// Create will create a namespace
func (n *namespaceClient) Create(req *admin.NamespaceAddRequest) error {
url := n.url + namespaceBaseURL
err := n.client.DoHTTPJSONPBRequest(http.MethodPost, url, req, nil)
if err != nil {
return err
}
n.logger.Info("successfully created namespace", zap.String("namespace", req.Name))
return nil
}
// List will retrieve all namespaces
func (n *namespaceClient) List() (*admin.NamespaceGetResponse, error) {
var (
url = n.url + namespaceBaseURL
resp = &admin.NamespaceGetResponse{}
)
err := n.client.DoHTTPJSONPBRequest(http.MethodGet, url, nil, resp)
if err != nil {
return nil, err
}
if resp.Registry == nil {
n.logger.Error("nil registry from coordinator")
return nil, errors.New("nil registry from coordinator")
}
n.logger.Debug("namespace retrieved")
return resp, nil
}
// Delete will delete a namespace
func (n *namespaceClient) Delete(namespace string) error {
url := fmt.Sprintf(n.url+namespaceDeleteFmt, namespace)
err := n.client.DoHTTPJSONPBRequest(http.MethodDelete, url, nil, nil)
if err != nil {
return err
}
n.logger.Info("successfully deleted namespace")
return nil
}
// Ready will mark a namespace as ready
func (n *namespaceClient) Ready(req *admin.NamespaceReadyRequest) error {
var (
url = n.url + namespaceReadyURL
resp = &admin.NamespaceReadyResponse{}
)
err := n.client.DoHTTPJSONPBRequest(http.MethodPost, url, req, resp)
if err != nil {
return err
}
n.logger.Info("marked namespace as ready", zap.String("namespace", req.Name))
return nil
}