Java tutorial
/** * Copyright 2015-2015 Ralph Schaer <ralphschaer@gmail.com> * * 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 ch.rasc.wampspring.demo.client; import java.util.ArrayList; import java.util.List; import java.util.UUID; import java.util.concurrent.CountDownLatch; import java.util.concurrent.TimeUnit; import org.springframework.util.concurrent.ListenableFuture; import org.springframework.web.socket.TextMessage; import org.springframework.web.socket.WebSocketSession; import org.springframework.web.socket.client.WebSocketClient; import org.springframework.web.socket.client.standard.StandardWebSocketClient; import org.springframework.web.socket.sockjs.client.RestTemplateXhrTransport; import org.springframework.web.socket.sockjs.client.SockJsClient; import org.springframework.web.socket.sockjs.client.Transport; import org.springframework.web.socket.sockjs.client.WebSocketTransport; import ch.rasc.wampspring.message.CallMessage; import com.fasterxml.jackson.core.JsonFactory; import com.fasterxml.jackson.databind.MappingJsonFactory; import com.fasterxml.jackson.databind.ObjectMapper; public class CallClientSockJs { public static void main(String[] args) throws InterruptedException { List<Transport> transports = new ArrayList<>(2); transports.add(new WebSocketTransport(new StandardWebSocketClient())); transports.add(new RestTemplateXhrTransport()); WebSocketClient webSocketClient = new SockJsClient(transports); JsonFactory jsonFactory = new MappingJsonFactory(new ObjectMapper()); CountDownLatch latch = new CountDownLatch(10_000); TestTextWebSocketHandler handler = new TestTextWebSocketHandler(jsonFactory, latch); Long[] start = new Long[1]; ListenableFuture<WebSocketSession> future = webSocketClient.doHandshake(handler, "ws://localhost:8080/wampOverSockJS"); future.addCallback(wss -> { start[0] = System.currentTimeMillis(); for (int i = 0; i < 10_000; i++) { CallMessage callMessage = new CallMessage(UUID.randomUUID().toString(), "testService.sum", i, i + 1); try { wss.sendMessage(new TextMessage(callMessage.toJson(jsonFactory))); } catch (Exception e) { System.out.println("ERROR SENDING CALLMESSAGE" + e); latch.countDown(); } } }, t -> { System.out.println("DO HANDSHAKE ERROR: " + t); System.exit(1); }); if (!latch.await(3, TimeUnit.MINUTES)) { System.out.println("SOMETHING WENT WRONG"); } System.out.println((System.currentTimeMillis() - start[0]) / 1000 + " seconds"); System.out.println("SUCCESS: " + handler.getSuccess()); System.out.println("ERROR : " + handler.getError()); } }