ch.rasc.wampspring.demo.client.Publisher.java Source code

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Here is the source code for ch.rasc.wampspring.demo.client.Publisher.java

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/**
 * 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.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.handler.TextWebSocketHandler;

import ch.rasc.wampspring.message.PublishMessage;
import ch.rasc.wampspring.message.WampMessage;
import ch.rasc.wampspring.message.WelcomeMessage;

import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.databind.MappingJsonFactory;
import com.fasterxml.jackson.databind.ObjectMapper;

public class Publisher {

    public static void main(String[] args) throws InterruptedException {

        WebSocketClient webSocketClient = new StandardWebSocketClient();
        final JsonFactory jsonFactory = new MappingJsonFactory(new ObjectMapper());

        final CountDownLatch welcomeLatch = new CountDownLatch(1);
        final CountDownLatch latch = new CountDownLatch(1_000_000);
        TextWebSocketHandler handler = new TextWebSocketHandler() {

            @Override
            protected void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception {
                WampMessage wampMessage = WampMessage.fromJson(jsonFactory, message.getPayload());

                if (wampMessage instanceof WelcomeMessage) {
                    latch.countDown();
                }

            }

        };

        Long[] start = new Long[1];
        ListenableFuture<WebSocketSession> future = webSocketClient.doHandshake(handler,
                "ws://localhost:8080/wamp");
        future.addCallback(wss -> {

            // Waiting for WELCOME message
            try {
                welcomeLatch.await(5, TimeUnit.SECONDS);

                start[0] = System.currentTimeMillis();
                for (int i = 0; i < 1_000_000; i++) {
                    PublishMessage publishMessage = new PublishMessage("/test/myqueue", i);
                    try {
                        wss.sendMessage(new TextMessage(publishMessage.toJson(jsonFactory)));
                    } catch (Exception e) {
                        System.out.println("ERROR SENDING PUBLISH_MESSAGE" + e);
                    }
                    latch.countDown();
                }

            } catch (Exception e1) {
                System.out.println("SENDING PUBLISH MESSAGES: " + e1);
            }

        }, 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");
    }

}