package io.undertow.server.handlers.proxy;
import io.undertow.Undertow;
import io.undertow.client.UndertowClient;
import io.undertow.server.handlers.ResponseCodeHandler;
import io.undertow.server.session.InMemorySessionManager;
import io.undertow.server.session.SessionAttachmentHandler;
import io.undertow.server.session.SessionCookieConfig;
import io.undertow.testutils.DefaultServer;
import io.undertow.testutils.HttpClientUtils;
import io.undertow.testutils.TestHttpClient;
import io.undertow.util.StatusCodes;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.xnio.Options;
import java.net.URI;
import java.net.URISyntaxException;
import static io.undertow.Handlers.jvmRoute;
import static io.undertow.Handlers.path;
@RunWith(DefaultServer.class)
public class LoadBalancingProxyWithCustomHostSelectorTestCase {
protected static Undertow server1;
protected static Undertow server2;
@BeforeClass
public static void setup() throws URISyntaxException {
final SessionCookieConfig sessionConfig = new SessionCookieConfig();
int port = DefaultServer.getHostPort("default");
server1 = Undertow.builder()
.addHttpListener(port + 1, DefaultServer.getHostAddress("default"))
.setSocketOption(Options.REUSE_ADDRESSES, true)
.setHandler(jvmRoute("JSESSIONID", "s1", path()
.addPrefixPath("/session", new SessionAttachmentHandler(new AbstractLoadBalancingProxyTestCase.SessionTestHandler(sessionConfig), new InMemorySessionManager(""), sessionConfig))
.addPrefixPath("/name", new AbstractLoadBalancingProxyTestCase.StringSendHandler("server1"))))
.build();
server2 = Undertow.builder()
.addHttpListener(port + 2, DefaultServer.getHostAddress("default"))
.setSocketOption(Options.REUSE_ADDRESSES, true)
.setHandler(jvmRoute("JSESSIONID", "s2", path()
.addPrefixPath("/session", new SessionAttachmentHandler(new AbstractLoadBalancingProxyTestCase.SessionTestHandler(sessionConfig), new InMemorySessionManager(""), sessionConfig))
.addPrefixPath("/name", new AbstractLoadBalancingProxyTestCase.StringSendHandler("server2"))))
.build();
server1.start();
server2.start();
LoadBalancingProxyClient.HostSelector hostSelector = new LoadBalancingProxyClient.HostSelector() {
@Override
public int selectHost(LoadBalancingProxyClient.Host[] availableHosts) {
return 0;
}
};
DefaultServer.setRootHandler(new ProxyHandler(new LoadBalancingProxyClient(UndertowClient.getInstance(), null, hostSelector)
.setConnectionsPerThread(4)
.addHost(new URI("http", null, DefaultServer.getHostAddress("default"), port + 1, null, null, null), "s1")
.addHost(new URI("http", null, DefaultServer.getHostAddress("default"), port + 2, null, null, null), "s2")
, 10000, ResponseCodeHandler.HANDLE_404));
}
@AfterClass
public static void teardown() {
server1.stop();
server2.stop();
}
// https://issues.jboss.org/browse/UNDERTOW-289
@Test
public void testDistributeLoadToGivenHost() throws Throwable {
final StringBuilder resultString = new StringBuilder();
for (int i = 0; i < 6; ++i) {
TestHttpClient client = new TestHttpClient();
try {
HttpGet get = new HttpGet(DefaultServer.getDefaultServerURL() + "/name");
HttpResponse result = client.execute(get);
Assert.assertEquals(StatusCodes.OK, result.getStatusLine().getStatusCode());
resultString.append(HttpClientUtils.readResponse(result));
resultString.append(' ');
} finally {
client.getConnectionManager().shutdown();
}
}
Assert.assertTrue(resultString.toString().contains("server1"));
Assert.assertFalse(resultString.toString().contains("server2"));
}
}