| package com.datatorrent.contrib.zmq; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| |
| import org.slf4j.Logger; |
| import org.zeromq.ZMQ; |
| |
| import com.datatorrent.contrib.testhelper.MessageQueueTestHelper; |
| |
| class ZeroMQMessageGenerator { |
| private ZMQ.Context context; |
| private ZMQ.Socket publisher; |
| private ZMQ.Socket syncservice; |
| private final int SUBSCRIBERS_EXPECTED = 1; |
| |
| String pubAddr = "tcp://*:5556"; |
| String syncAddr = "tcp://*:5557"; |
| |
| private static Logger logger; |
| public ZeroMQMessageGenerator(Logger loggerInstance) |
| { |
| logger = loggerInstance; |
| } |
| |
| public void setup() |
| { |
| context = ZMQ.context(1); |
| logger.debug("Publishing on ZeroMQ"); |
| publisher = context.socket(ZMQ.PUB); |
| publisher.bind(pubAddr); |
| syncservice = context.socket(ZMQ.REP); |
| syncservice.bind(syncAddr); |
| } |
| |
| public void send(Object message) |
| { |
| String msg = message.toString(); |
| publisher.send(msg.getBytes(), 0); |
| } |
| |
| public void teardown() |
| { |
| publisher.close(); |
| context.term(); |
| } |
| |
| public void generateMessages(int msgCount) throws InterruptedException |
| { |
| for (int subscribers = 0; subscribers < SUBSCRIBERS_EXPECTED; subscribers++) { |
| byte[] value = syncservice.recv(0); |
| syncservice.send("".getBytes(), 0); |
| } |
| for (int i = 0; i < msgCount; i++) { |
| |
| ArrayList<HashMap<String, Integer>> dataMaps = MessageQueueTestHelper.getMessages(); |
| for(int j =0; j < dataMaps.size(); j++) |
| { |
| send(dataMaps.get(j)); |
| } |
| } |
| } |
| } |
| |