72 lines
1.6 KiB
C++
72 lines
1.6 KiB
C++
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#include "qamqpclient.h"
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#include "qamqpqueue.h"
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#include "qamqpexchange.h"
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#include "server.h"
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Server::Server(QObject *parent)
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: QObject(parent),
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m_client(0),
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m_rpcQueue(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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Server::~Server()
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{
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}
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void Server::listen()
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{
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m_client->connectToHost();
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}
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int Server::fib(int n)
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{
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if (n == 0)
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return 0;
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if (n == 1)
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return 1;
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return fib(n - 1) + fib(n - 2);
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}
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void Server::clientConnected()
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{
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m_rpcQueue = m_client->createQueue("rpc_queue");
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connect(m_rpcQueue, SIGNAL(declared()), this, SLOT(queueDeclared()));
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connect(m_rpcQueue, SIGNAL(qosDefined()), this, SLOT(qosDefined()));
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connect(m_rpcQueue, SIGNAL(messageReceived()), this, SLOT(processRpcMessage()));
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m_rpcQueue->declare();
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m_defaultExchange = m_client->createExchange();
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}
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void Server::queueDeclared()
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{
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m_rpcQueue->qos(1);
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}
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void Server::qosDefined()
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{
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m_rpcQueue->consume();
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qDebug() << " [x] Awaiting RPC requests";
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}
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void Server::processRpcMessage()
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{
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QAmqpMessage rpcMessage = m_rpcQueue->dequeue();
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int n = rpcMessage.payload().toInt();
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int response = fib(n);
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m_rpcQueue->ack(rpcMessage);
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QString replyTo = rpcMessage.property(QAmqpMessage::ReplyTo).toString();
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QAmqpMessage::PropertyHash properties;
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properties.insert(QAmqpMessage::CorrelationId, rpcMessage.property(QAmqpMessage::CorrelationId));
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m_defaultExchange->publish(QByteArray::number(response), replyTo, properties);
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}
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