/*
* Copyright 2013-2016 the original author or 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 org.springframework.cloud.netflix.feign;
import static org.hamcrest.Matchers.instanceOf;
import static org.hamcrest.Matchers.is;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertThat;
import java.lang.reflect.Field;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.util.ReflectionUtils;
import org.springframework.util.SocketUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import feign.Client;
import feign.Feign;
import feign.Target;
import feign.httpclient.ApacheHttpClient;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
/**
* @author Spencer Gibb
*/
@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(classes = FeignHttpClientUrlTests.TestConfig.class, webEnvironment = WebEnvironment.DEFINED_PORT, value = {
"spring.application.name=feignclienturltest", "feign.hystrix.enabled=false",
"feign.okhttp.enabled=false" })
@DirtiesContext
public class FeignHttpClientUrlTests {
@BeforeClass
public static void beforeClass() {
int port = SocketUtils.findAvailableTcpPort();
System.setProperty("server.port", String.valueOf(port));
}
@AfterClass
public static void afterClass() {
System.clearProperty("server.port");
}
@Autowired
private UrlClient urlClient;
@Autowired
private BeanUrlClient beanClient;
@Autowired BeanUrlClientNoProtocol beanClientNoProtocol;
// this tests that
@FeignClient(name = "localappurl", url = "http://localhost:${server.port}/")
protected interface UrlClient {
@RequestMapping(method = RequestMethod.GET, value = "/hello")
Hello getHello();
}
@FeignClient(name = "beanappurl", url = "#{SERVER_URL}path")
protected interface BeanUrlClient {
@RequestMapping(method = RequestMethod.GET, value = "/hello")
Hello getHello();
}
@FeignClient(name = "beanappurlnoprotocol", url = "#{SERVER_URL_NO_PROTOCOL}path")
protected interface BeanUrlClientNoProtocol {
@RequestMapping(method = RequestMethod.GET, value = "/hello")
Hello getHello();
}
@Configuration
@EnableAutoConfiguration
@RestController
@EnableFeignClients(clients = { UrlClient.class, BeanUrlClient.class, BeanUrlClientNoProtocol.class })
protected static class TestConfig {
@Value("${server.port}")
private int port;
@RequestMapping(method = RequestMethod.GET, value = "/hello")
public Hello getHello() {
return new Hello("hello world 1");
}
@RequestMapping(method = RequestMethod.GET, value = "/path/hello")
public Hello getHelloWithPath() {
return getHello();
}
@Bean(name="SERVER_URL")
public String serverUrl() {
return "http://localhost:" + port + "/";
}
@Bean(name="SERVER_URL_NO_PROTOCOL")
public String serverUrlNoProtocol() {
return "localhost:" + port + "/";
}
@Bean
public Targeter feignTargeter() {
return new Targeter() {
@Override
public <T> T target(FeignClientFactoryBean factory, Feign.Builder feign,
FeignContext context, Target.HardCodedTarget<T> target) {
Field field = ReflectionUtils.findField(Feign.Builder.class,
"client");
ReflectionUtils.makeAccessible(field);
Client client = (Client) ReflectionUtils.getField(field, feign);
if (target.name().equals("localappurl")) {
assertThat("client was wrong type", client,
is(instanceOf(ApacheHttpClient.class)));
}
return feign.target(target);
}
};
}
}
@Test
public void testUrlHttpClient() {
assertNotNull("UrlClient was null", this.urlClient);
Hello hello = this.urlClient.getHello();
assertNotNull("hello was null", hello);
assertEquals("first hello didn't match", new Hello("hello world 1"), hello);
}
@Test
public void testBeanUrl() {
Hello hello = this.beanClient.getHello();
assertNotNull("hello was null", hello);
assertEquals("first hello didn't match", new Hello("hello world 1"), hello);
}
@Test
public void testBeanUrlNoProtocol() {
Hello hello = this.beanClientNoProtocol.getHello();
assertNotNull("hello was null", hello);
assertEquals("first hello didn't match", new Hello("hello world 1"), hello);
}
@Data
@AllArgsConstructor
@NoArgsConstructor
public static class Hello {
private String message;
}
}