mirror of
https://github.com/1f349/dendrite.git
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110 lines
2.6 KiB
Go
110 lines
2.6 KiB
Go
// Copyright (c) 2017 Uber Technologies, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package client
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import (
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"fmt"
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"net"
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"net/http"
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"sync"
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"github.com/crossdock/crossdock-go"
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"github.com/uber/jaeger-client-go/crossdock/common"
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)
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// Client is a controller for the tests
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type Client struct {
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ClientHostPort string
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ServerPortHTTP string
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ServerPortTChannel string
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listener net.Listener
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hostMapper func(service string) string
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}
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// Start begins a blocking Crossdock client
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func (c *Client) Start() error {
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if err := c.Listen(); err != nil {
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return err
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}
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return c.Serve()
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}
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// AsyncStart begins a Crossdock client in the background,
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// but does not return until it started serving.
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func (c *Client) AsyncStart() error {
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if err := c.Listen(); err != nil {
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return err
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}
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var started sync.WaitGroup
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started.Add(1)
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go func() {
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started.Done()
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c.Serve()
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}()
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started.Wait()
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return nil
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}
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// Listen initializes the server
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func (c *Client) Listen() error {
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c.setDefaultPort(&c.ClientHostPort, ":"+common.DefaultClientPortHTTP)
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c.setDefaultPort(&c.ServerPortHTTP, common.DefaultServerPortHTTP)
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c.setDefaultPort(&c.ServerPortTChannel, common.DefaultServerPortTChannel)
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behaviors := crossdock.Behaviors{
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behaviorTrace: c.trace,
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}
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http.Handle("/", crossdock.Handler(behaviors, true))
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listener, err := net.Listen("tcp", c.ClientHostPort)
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if err != nil {
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return err
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}
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c.listener = listener
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c.ClientHostPort = listener.Addr().String()
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return nil
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}
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// Serve starts service crossdock traffic. This is a blocking call.
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func (c *Client) Serve() error {
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return http.Serve(c.listener, nil)
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}
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// Close stops the client
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func (c *Client) Close() error {
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return c.listener.Close()
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}
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// URL returns a URL that the client can be accessed on
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func (c *Client) URL() string {
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return fmt.Sprintf("http://%s/", c.ClientHostPort)
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}
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func (c *Client) setDefaultPort(port *string, defaultPort string) {
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if *port == "" {
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*port = defaultPort
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}
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}
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func (c *Client) mapServiceToHost(service string) string {
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mapper := c.hostMapper
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if mapper == nil {
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return service
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}
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return mapper(service)
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}
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