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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.jdisc.handler;
import com.yahoo.jdisc.Request;
import com.yahoo.jdisc.Response;
import com.yahoo.jdisc.application.ContainerBuilder;
import com.yahoo.jdisc.test.NonWorkingRequest;
import com.yahoo.jdisc.test.TestDriver;
import org.junit.jupiter.api.Test;
import java.net.URI;
import java.nio.ByteBuffer;
import java.util.concurrent.TimeUnit;
import static java.nio.charset.StandardCharsets.UTF_8;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertTrue;
/**
* @author Simon Thoresen Hult
*/
public class AbstractRequestHandlerTestCase {
private static final int NUM_REQUESTS = 666;
@Test
void requireThatHandleTimeoutIsImplemented() throws Exception {
FutureResponse handler = new FutureResponse();
new AbstractRequestHandler() {
@Override
public ContentChannel handleRequest(Request request, ResponseHandler handler) {
return null;
}
}.handleTimeout(NonWorkingRequest.newInstance("http://localhost/"), handler);
Response response = handler.get(600, TimeUnit.SECONDS);
assertNotNull(response);
assertEquals(Response.Status.GATEWAY_TIMEOUT, response.getStatus());
}
@Test
void requireThatHelloWorldWorks() throws InterruptedException {
TestDriver driver = TestDriver.newSimpleApplicationInstanceWithoutOsgi();
ContainerBuilder builder = driver.newContainerBuilder();
builder.serverBindings().bind("http://localhost/", new HelloWorldHandler());
driver.activateContainer(builder);
for (int i = 0; i < NUM_REQUESTS; ++i) {
MyResponseHandler responseHandler = new MyResponseHandler();
driver.newRequestDispatch("http://localhost/", responseHandler).dispatch();
ByteBuffer buf = responseHandler.content.read();
assertNotNull(buf);
assertEquals("Hello World!", new String(buf.array(), buf.arrayOffset() + buf.position(), buf.remaining(), UTF_8));
assertNull(responseHandler.content.read());
}
assertTrue(driver.close());
}
@Test
void requireThatEchoWorks() throws InterruptedException {
TestDriver driver = TestDriver.newSimpleApplicationInstanceWithoutOsgi();
ContainerBuilder builder = driver.newContainerBuilder();
builder.serverBindings().bind("http://localhost/", new EchoHandler());
driver.activateContainer(builder);
for (int i = 0; i < NUM_REQUESTS; ++i) {
MyResponseHandler responseHandler = new MyResponseHandler();
RequestDispatch dispatch = driver.newRequestDispatch("http://localhost/", responseHandler);
FastContentWriter requestContent = dispatch.connectFastWriter();
ByteBuffer buf = ByteBuffer.allocate(69);
requestContent.write(buf);
requestContent.close();
assertSame(buf, responseHandler.content.read());
assertNull(responseHandler.content.read());
}
assertTrue(driver.close());
}
@Test
void requireThatForwardWorks() throws InterruptedException {
TestDriver driver = TestDriver.newSimpleApplicationInstanceWithoutOsgi();
ContainerBuilder builder = driver.newContainerBuilder();
builder.serverBindings().bind("http://localhost/", new ForwardHandler());
builder.clientBindings().bind("http://remotehost/", new EchoHandler());
driver.activateContainer(builder);
for (int i = 0; i < NUM_REQUESTS; ++i) {
MyResponseHandler responseHandler = new MyResponseHandler();
RequestDispatch dispatch = driver.newRequestDispatch("http://localhost/", responseHandler);
FastContentWriter requestContent = dispatch.connectFastWriter();
ByteBuffer buf = ByteBuffer.allocate(69);
requestContent.write(buf);
requestContent.close();
assertSame(buf, responseHandler.content.read());
assertNull(responseHandler.content.read());
}
assertTrue(driver.close());
}
private static class HelloWorldHandler extends AbstractRequestHandler {
@Override
public ContentChannel handleRequest(Request request, ResponseHandler handler) {
FastContentWriter writer = ResponseDispatch.newInstance(Response.Status.OK).connectFastWriter(handler);
try {
writer.write("Hello World!");
} finally {
writer.close();
}
return null;
}
}
private static class EchoHandler extends AbstractRequestHandler {
@Override
public ContentChannel handleRequest(Request request, ResponseHandler handler) {
return new WritingContentChannel(new FastContentWriter(ResponseDispatch.newInstance(Response.Status.OK).connect(handler)));
}
}
private static class ForwardHandler extends AbstractRequestHandler {
@Override
public ContentChannel handleRequest(final Request request, final ResponseHandler handler) {
return new WritingContentChannel(new FastContentWriter(new RequestDispatch() {
@Override
public Request newRequest() {
return new Request(request, URI.create("http://remotehost/"));
}
@Override
public ContentChannel handleResponse(Response response) {
return handler.handleResponse(response);
}
}.connect()));
}
}
private static class WritingContentChannel implements ContentChannel {
final FastContentWriter writer;
WritingContentChannel(FastContentWriter writer) {
this.writer = writer;
}
@Override
public void write(ByteBuffer buf, CompletionHandler handler) {
try {
writer.write(buf);
handler.completed();
} catch (Exception e) {
handler.failed(e);
}
}
@Override
public void close(CompletionHandler handler) {
try {
writer.close();
handler.completed();
} catch (Exception e) {
handler.failed(e);
}
}
}
private static class MyResponseHandler implements ResponseHandler {
final ReadableContentChannel content = new ReadableContentChannel();
@Override
public ContentChannel handleResponse(Response response) {
return content;
}
}
}
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