package org.springframework.cloud.netflix.zuul;
import static org.junit.Assert.assertEquals;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.context.embedded.LocalServerPort;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
import org.springframework.boot.test.web.client.TestRestTemplate;
import org.springframework.cloud.netflix.ribbon.RibbonClient;
import org.springframework.cloud.netflix.ribbon.StaticServerList;
import org.springframework.cloud.netflix.zuul.filters.discovery.DiscoveryClientRouteLocator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MultiValueMap;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import com.netflix.loadbalancer.Server;
import com.netflix.loadbalancer.ServerList;
import com.netflix.zuul.ZuulFilter;
import com.netflix.zuul.context.RequestContext;
@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(
classes = RetryableZuulProxyApplication.class,
webEnvironment = WebEnvironment.RANDOM_PORT,
value = {
"zuul.routes.simple.path: /simple/**",
"zuul.routes.simple.retryable: true",
"ribbon.OkToRetryOnAllOperations: true"})
@DirtiesContext
public class RetryableZuulProxyApplicationTests {
@Autowired
private TestRestTemplate testRestTemplate;
@Autowired
@SuppressWarnings("unused")
private DiscoveryClientRouteLocator routes;
@Autowired
@SuppressWarnings("unused")
private RoutesEndpoint endpoint;
@Before
public void setTestRequestContext() {
RequestContext context = new RequestContext();
RequestContext.testSetCurrentContext(context);
}
@Test
public void postWithForm() {
MultiValueMap<String, String> form = new LinkedMultiValueMap<String, String>();
form.set("foo", "bar");
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
ResponseEntity<String> result = testRestTemplate.exchange(
"/simple", HttpMethod.POST,
new HttpEntity<>(form, headers), String.class);
assertEquals(HttpStatus.OK, result.getStatusCode());
assertEquals("Posted! {foo=[bar]}", result.getBody());
}
}
// Don't use @SpringBootApplication because we don't want to component scan
@Configuration
@EnableAutoConfiguration
@RestController
@EnableZuulProxy
@RibbonClient(name = "simple", configuration = RetryableRibbonClientConfiguration.class)
class RetryableZuulProxyApplication {
@RequestMapping(value = "/", method = RequestMethod.POST)
public String delete(@RequestBody MultiValueMap<String, String> form) {
return "Posted! " + form;
}
@Bean
public ZuulFilter sampleFilter() {
return new ZuulFilter() {
@Override
public String filterType() {
return "pre";
}
@Override
public boolean shouldFilter() {
return true;
}
@Override
public Object run() {
return null;
}
@Override
public int filterOrder() {
return 0;
}
};
}
}
// Load balancer with fixed server list for "simple" pointing to localhost
@Configuration
class RetryableRibbonClientConfiguration {
@LocalServerPort
private int port;
@Bean
public ServerList<Server> ribbonServerList() {
return new StaticServerList<>(new Server("localhost", this.port),
new Server("failed-localhost", this.port));
}
}