| /* |
| * 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 org.apache.unomi.itests.graphql; |
| |
| import io.reactivex.BackpressureStrategy; |
| import io.reactivex.Flowable; |
| import io.reactivex.Observable; |
| import io.reactivex.ObservableEmitter; |
| import io.reactivex.subscribers.DefaultSubscriber; |
| import org.eclipse.jetty.websocket.api.RemoteEndpoint; |
| import org.eclipse.jetty.websocket.api.Session; |
| import org.eclipse.jetty.websocket.api.WebSocketAdapter; |
| import org.eclipse.jetty.websocket.client.ClientUpgradeRequest; |
| import org.eclipse.jetty.websocket.client.WebSocketClient; |
| import org.junit.Assert; |
| import org.junit.Test; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.net.URI; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.CompletableFuture; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.TimeUnit; |
| |
| public class GraphQLWebSocketIT extends BaseGraphQLIT { |
| |
| private final static Logger LOGGER = LoggerFactory.getLogger(GraphQLWebSocketIT.class); |
| |
| private static final String SUBSCRIPTION_ENDPOINT = "ws://localhost:" + HTTP_PORT + "/graphql"; |
| |
| @Test |
| public void testWebSocketConnectionSegment() throws Exception { |
| WebSocketClient client = new WebSocketClient(); |
| Socket socket = new Socket(); |
| try { |
| LOGGER.info("Starting web socket client..."); |
| client.start(); |
| |
| URI echoUri = new URI(SUBSCRIPTION_ENDPOINT); |
| ClientUpgradeRequest request = new ClientUpgradeRequest(); |
| |
| Future<Session> onConnected = client.connect(socket, echoUri, request); |
| RemoteEndpoint remote = onConnected.get().getRemote(); |
| |
| LOGGER.info("Connected, initializing... "); |
| |
| String initMsg = resourceAsString("graphql/socket/out/init.json"); |
| remote.sendString(initMsg); |
| |
| LOGGER.info("Initialized, acknowledging... "); |
| |
| String ackMsg = resourceAsString("graphql/socket/in/ack.json"); |
| String initResp = socket.waitMessage().get(10, TimeUnit.SECONDS); |
| Assert.assertEquals(ackMsg, initResp); |
| |
| LOGGER.info("Sending terminate message..."); |
| |
| String termMsg = resourceAsString("graphql/socket/out/term.json"); |
| remote.sendString(termMsg); |
| |
| LOGGER.info("Waiting for socket to close..."); |
| |
| CloseStatus status = socket.waitClose().get(10, TimeUnit.SECONDS); |
| // Assert.assertEquals(1000, (int) status.getStatus()); TODO skip for now |
| |
| } finally { |
| client.stop(); |
| LOGGER.info("Web socket client stopped."); |
| } |
| } |
| |
| private class Socket extends WebSocketAdapter { |
| |
| private Flowable<String> publisher; |
| |
| private CompletableFuture<ObservableEmitter<String>> emitterFuture; |
| |
| private CompletableFuture<CloseStatus> closeStatus = new CompletableFuture<>(); |
| |
| private List<Future<String>> messageListeners = new ArrayList<>(); |
| |
| public Socket() { |
| // web socket message may come faster than observable callback is executed |
| emitterFuture = new CompletableFuture<>(); |
| |
| publisher = Observable |
| .create((ObservableEmitter<String> emitter) -> this.emitterFuture.complete(emitter)) |
| .toFlowable(BackpressureStrategy.BUFFER); |
| } |
| |
| @Override |
| public void onWebSocketConnect(Session sess) { |
| super.onWebSocketConnect(sess); |
| } |
| |
| @Override |
| public void onWebSocketText(String message) { |
| try { |
| this.emitterFuture.get(10, TimeUnit.SECONDS).onNext(message); |
| } catch (Exception e) { |
| throw new RuntimeException("Could not get emitter", e); |
| } |
| } |
| |
| public Future<String> waitMessage() { |
| CompletableFuture<String> future = new CompletableFuture<>(); |
| publisher.subscribe(new DefaultSubscriber<String>() { |
| |
| @Override |
| public void onNext(String s) { |
| future.complete(s); |
| cancel(); |
| } |
| |
| @Override |
| public void onError(Throwable throwable) { |
| future.completeExceptionally(throwable); |
| cancel(); |
| } |
| |
| @Override |
| public void onComplete() { |
| future.cancel(false); |
| cancel(); |
| messageListeners.remove(future); |
| } |
| }); |
| messageListeners.add(future); |
| return future; |
| } |
| |
| public Future<CloseStatus> waitClose() { |
| return closeStatus; |
| } |
| |
| @Override |
| public void onWebSocketClose(int statusCode, String reason) { |
| LOGGER.info("Web socket close, code: " + statusCode + ", reason: " + reason); |
| super.onWebSocketClose(statusCode, reason); |
| closeStatus.complete(new CloseStatus(statusCode, reason)); |
| cancelListeners(); |
| } |
| |
| private void cancelListeners() { |
| this.messageListeners.forEach(future -> future.cancel(false)); |
| } |
| } |
| |
| private class CloseStatus { |
| final Integer status; |
| final String reason; |
| |
| public CloseStatus(Integer status, String reason) { |
| this.status = status; |
| this.reason = reason; |
| } |
| |
| public Integer getStatus() { |
| return status; |
| } |
| |
| public String getReason() { |
| return reason; |
| } |
| } |
| } |