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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 consul
import (
"fmt"
)
import (
"github.com/apache/dubbo-go/common"
"github.com/apache/dubbo-go/common/constant"
"github.com/hashicorp/consul/agent"
"github.com/stretchr/testify/assert"
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)
var (
registryHost = "localhost"
registryPort = 8500
providerHost = "localhost"
providerPort = 8000
consumerHost = "localhost"
consumerPort = 8001
service = "HelloWorld"
protocol = "tcp"
)
func newProviderRegistryUrl(host string, port int) *common.URL {
url1 := common.NewURLWithOptions(
common.WithIp(host),
common.WithPort(strconv.Itoa(port)),
common.WithParams(url.Values{}),
common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.PROVIDER)),
)
return url1
}
func newConsumerRegistryUrl(host string, port int) *common.URL {
url1 := common.NewURLWithOptions(
common.WithIp(host),
common.WithPort(strconv.Itoa(port)),
common.WithParams(url.Values{}),
common.WithParamsValue(constant.ROLE_KEY, strconv.Itoa(common.CONSUMER)),
)
return url1
}
func newProviderUrl(host string, port int, service string, protocol string) common.URL {
url1 := common.NewURLWithOptions(
common.WithIp(host),
common.WithPort(strconv.Itoa(port)),
common.WithPath(service),
common.WithProtocol(protocol),
)
return *url1
}
func newConsumerUrl(host string, port int, service string, protocol string) common.URL {
url1 := common.NewURLWithOptions(
common.WithIp(host),
common.WithPort(strconv.Itoa(port)),
common.WithPath(service),
common.WithProtocol(protocol),
)
return *url1
}
type Server struct {
listener net.Listener
wg sync.WaitGroup
done chan struct{}
}
func newServer(host string, port int) *Server {
addr := fmt.Sprintf("%s:%d", host, port)
tcpAddr, _ := net.ResolveTCPAddr("tcp", addr)
listener, _ := net.ListenTCP("tcp", tcpAddr)
server := &Server{
listener: listener,
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}
server.wg.Add(1)
go server.serve()
return server
}
func (server *Server) serve() {
defer server.wg.Done()
for {
select {
case <-server.done:
return
default:
conn, err := server.listener.Accept()
if err != nil {
continue
}
conn.Write([]byte("Hello World"))
conn.Close()
}
}
}
func (server *Server) close() {
close(server.done)
server.listener.Close()
server.wg.Wait()
}
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func TestSomething(t *testing.T) {
providerRegistryUrl := newProviderRegistryUrl(registryHost, registryPort)
consumerRegistryUrl := newConsumerRegistryUrl(registryHost, registryPort)
providerUrl := newProviderUrl(providerHost, providerPort, service, protocol)
consumerUrl := newConsumerUrl(consumerHost, consumerPort, service, protocol)
dataDir, _ := ioutil.TempDir("./", "agent")
defer os.RemoveAll(dataDir)
hcl := `
ports {
http = ` + strconv.Itoa(registryPort) + `
}
data_dir = "` + dataDir + `"
`
consulServer := &agent.TestAgent{Name: t.Name(), DataDir: dataDir, HCL: hcl}
consulServer.Start(t)
defer consulServer.Shutdown()
providerRegistry, err := newConsulRegistry(providerRegistryUrl)
assert.NoError(t, err)
consumerRegistry, err := newConsulRegistry(consumerRegistryUrl)
assert.NoError(t, err)
server := newServer(providerHost, providerPort)
defer server.close()
err = providerRegistry.Register(providerUrl)
assert.NoError(t, err)
listener, err := consumerRegistry.Subscribe(consumerUrl)
assert.NoError(t, err)
event, err := listener.Next()
assert.NoError(t, err)
assert.True(t, providerUrl.URLEqual(event.Service))
}