73 lines
2.0 KiB
C++
73 lines
2.0 KiB
C++
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#include <QCoreApplication>
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#include <QEventLoop>
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#include <QUuid>
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#include "qamqpclient.h"
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#include "qamqpexchange.h"
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#include "qamqpqueue.h"
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#include "fibonaccirpcclient.h"
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FibonacciRpcClient::FibonacciRpcClient(QObject *parent)
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: QObject(parent),
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m_client(0),
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m_responseQueue(0),
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m_defaultExchange(0)
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{
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m_client = new QAmqpClient(this);
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connect(m_client, SIGNAL(connected()), this, SLOT(clientConnected()));
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}
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FibonacciRpcClient::~FibonacciRpcClient()
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{
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}
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bool FibonacciRpcClient::connectToServer()
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{
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QEventLoop loop;
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connect(this, SIGNAL(connected()), &loop, SLOT(quit()));
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m_client->connectToHost();
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loop.exec();
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return m_client->isConnected();
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}
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void FibonacciRpcClient::call(int number)
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{
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qDebug() << " [x] Requesting fib(" << number << ")";
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m_correlationId = QUuid::createUuid().toString();
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QAmqpMessage::PropertyHash properties;
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properties.insert(QAmqpMessage::ReplyTo, m_responseQueue->name());
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properties.insert(QAmqpMessage::CorrelationId, m_correlationId);
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m_defaultExchange->publish(QByteArray::number(number), "rpc_queue", properties);
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}
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void FibonacciRpcClient::clientConnected()
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{
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m_responseQueue = m_client->createQueue();
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connect(m_responseQueue, SIGNAL(declared()), this, SLOT(queueDeclared()));
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connect(m_responseQueue, SIGNAL(messageReceived()), this, SLOT(responseReceived()));
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m_responseQueue->declare(QAmqpQueue::Exclusive | QAmqpQueue::AutoDelete);
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m_defaultExchange = m_client->createExchange();
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}
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void FibonacciRpcClient::queueDeclared()
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{
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m_responseQueue->consume();
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Q_EMIT connected();
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}
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void FibonacciRpcClient::responseReceived()
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{
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QAmqpMessage message = m_responseQueue->dequeue();
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if (message.property(QAmqpMessage::CorrelationId).toString() != m_correlationId) {
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// requeue message, it wasn't meant for us
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m_responseQueue->reject(message, true);
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return;
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}
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qDebug() << " [.] Got " << message.payload();
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qApp->quit();
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}
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