| /* |
| * |
| * 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. |
| * |
| */ |
| |
| /** |
| * This file provides one half of a test and example of a pub-sub |
| * style of interaction. See qpid-topic-listener.cpp for the other half, in |
| * which the logic for subscribers is defined. |
| * |
| * This file contains the publisher logic. The publisher will send a |
| * number of messages to the exchange with the appropriate routing key |
| * for the logical 'topic'. Once it has done this it will then send a |
| * request that each subscriber report back with the number of message |
| * it has received and the time that elapsed between receiving the |
| * first one and receiving the report request. Once the expected |
| * number of reports are received, it sends out a request that each |
| * subscriber shutdown. |
| */ |
| |
| #include "TestOptions.h" |
| #include "qpid/client/Connection.h" |
| #include "qpid/client/MessageListener.h" |
| #include "qpid/client/AsyncSession.h" |
| #include "qpid/client/SubscriptionManager.h" |
| #include "qpid/sys/Monitor.h" |
| #include "qpid/sys/Time.h" |
| #include <cstdlib> |
| #include <iostream> |
| |
| using namespace qpid; |
| using namespace qpid::client; |
| using namespace qpid::sys; |
| using namespace std; |
| |
| namespace qpid { |
| namespace tests { |
| |
| /** |
| * The publishing logic is defined in this class. It implements |
| * message listener and can therfore be used to receive messages sent |
| * back by the subscribers. |
| */ |
| class Publisher { |
| AsyncSession session; |
| SubscriptionManager mgr; |
| LocalQueue queue; |
| const string controlTopic; |
| const bool transactional; |
| const bool durable; |
| |
| string generateData(int size); |
| |
| public: |
| Publisher(const AsyncSession& session, const string& controlTopic, bool tx, bool durable); |
| int64_t publish(int msgs, int listeners, int size); |
| void terminate(); |
| }; |
| |
| /** |
| * A utility class for managing the options passed in to the test |
| */ |
| struct Args : public TestOptions { |
| int messages; |
| int subscribers; |
| bool transactional; |
| bool durable; |
| int batches; |
| int delay; |
| int size; |
| string statusqueue; |
| |
| Args() : messages(1000), subscribers(1), |
| transactional(false), durable(false), |
| batches(1), delay(0), size(256) |
| { |
| addOptions() |
| ("messages", optValue(messages, "N"), "how many messages to send") |
| ("subscribers", optValue(subscribers, "N"), "how many subscribers to expect reports from") |
| ("transactional", optValue(transactional), "client should use transactions") |
| ("durable", optValue(durable), "messages should be durable") |
| ("batches", optValue(batches, "N"), "how many batches to run") |
| ("delay", optValue(delay, "SECONDS"), "Causes a delay between each batch") |
| ("size", optValue(size, "BYTES"), "size of the published messages") |
| ("status-queue", optValue(statusqueue, "QUEUE-NAME"), "Message queue to read status messages from"); |
| } |
| }; |
| |
| Publisher::Publisher(const AsyncSession& _session, const string& _controlTopic, bool tx, bool d) : |
| session(_session), mgr(session), controlTopic(_controlTopic), transactional(tx), durable(d) |
| { |
| mgr.subscribe(queue, "response"); |
| } |
| |
| int64_t Publisher::publish(int msgs, int listeners, int size){ |
| Message msg(generateData(size), controlTopic); |
| if (durable) { |
| msg.getDeliveryProperties().setDeliveryMode(framing::PERSISTENT); |
| } |
| AbsTime start = now(); |
| |
| for(int i = 0; i < msgs; i++){ |
| session.messageTransfer(arg::content=msg, arg::destination="amq.topic", arg::acceptMode=1); |
| } |
| //send report request |
| Message reportRequest("", controlTopic); |
| reportRequest.getHeaders().setString("TYPE", "REPORT_REQUEST"); |
| session.messageTransfer(arg::content=reportRequest, arg::destination="amq.topic", arg::acceptMode=1); |
| if(transactional){ |
| sync(session).txCommit(); |
| } |
| //wait for a response from each listener (TODO, could log these) |
| for (int i = 0; i < listeners; i++) { |
| Message report = queue.pop(); |
| } |
| |
| if(transactional){ |
| sync(session).txCommit(); |
| } |
| |
| AbsTime finish = now(); |
| return Duration(start, finish); |
| } |
| |
| string Publisher::generateData(int size){ |
| string data; |
| for(int i = 0; i < size; i++){ |
| data += ('A' + (i / 26)); |
| } |
| return data; |
| } |
| |
| void Publisher::terminate(){ |
| //send termination request |
| Message terminationRequest("", controlTopic); |
| terminationRequest.getHeaders().setString("TYPE", "TERMINATION_REQUEST"); |
| session.messageTransfer(arg::content=terminationRequest, arg::destination="amq.topic", arg::acceptMode=1); |
| if(transactional){ |
| session.txCommit(); |
| } |
| } |
| |
| }} // namespace qpid::tests |
| |
| using namespace qpid::tests; |
| |
| int main(int argc, char** argv) { |
| try{ |
| Args args; |
| args.parse(argc, argv); |
| if(args.help) |
| cout << args << endl; |
| else { |
| Connection connection; |
| args.open(connection); |
| AsyncSession session = connection.newSession(); |
| |
| // If status-queue is defined, wait for all expected listeners to join in before we start |
| if( args.statusqueue.length() > 0 ) { |
| cout << "Waiting for " << args.subscribers << " listeners..." << endl; |
| SubscriptionManager statusSubs(session); |
| LocalQueue statusQ; |
| statusSubs.subscribe(statusQ, args.statusqueue); |
| for (int i = 0; i < args.subscribers; i++) { |
| Message m = statusQ.get(); |
| if( m.getData().find("topic_listener: ", 0) == 0 ) { |
| cout << "Listener " << (i+1) << " of " << args.subscribers |
| << " is ready (pid " << m.getData().substr(16, m.getData().length() - 16) |
| << ")" << endl; |
| } else { |
| throw Exception(QPID_MSG("Unexpected message received on status queue: " << m.getData())); |
| } |
| } |
| } |
| |
| if (args.transactional) { |
| session.txSelect(); |
| } |
| session.queueDeclare(arg::queue="response"); |
| session.exchangeBind(arg::exchange="amq.direct", arg::queue="response", arg::bindingKey="response"); |
| |
| Publisher publisher(session, "topic_control", args.transactional, args.durable); |
| |
| int batchSize(args.batches); |
| int64_t max(0); |
| int64_t min(0); |
| int64_t sum(0); |
| for(int i = 0; i < batchSize; i++){ |
| if(i > 0 && args.delay) qpid::sys::sleep(args.delay); |
| int64_t msecs = |
| publisher.publish(args.messages, |
| args.subscribers, |
| args.size) / TIME_MSEC; |
| if(!max || msecs > max) max = msecs; |
| if(!min || msecs < min) min = msecs; |
| sum += msecs; |
| cout << "Completed " << (i+1) << " of " << batchSize |
| << " in " << msecs << "ms" << endl; |
| } |
| publisher.terminate(); |
| int64_t avg = sum / batchSize; |
| if(batchSize > 1){ |
| cout << batchSize << " batches completed. avg=" << avg << |
| ", max=" << max << ", min=" << min << endl; |
| } |
| session.close(); |
| connection.close(); |
| } |
| return 0; |
| }catch(exception& error) { |
| cout << error.what() << endl; |
| } |
| return 1; |
| } |