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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtAddOn.JsonStream module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qjsonclient.h"
#include "qjsonstream.h"
#include <QLocalSocket>
#include <QTcpSocket>
#include <QCoreApplication>
#include <QFile>
#include <QtCore/qmetaobject.h>
QT_BEGIN_NAMESPACE_JSONSTREAM
/****************************************************************************/
class QJsonClientPrivate
{
public:
QJsonClientPrivate()
: mStream(0) {}
QJsonClientPrivate(const QJsonObject& message)
: mRegistrationMessage(message)
, mStream(0) {}
QJsonObject mRegistrationMessage;
QJsonStream mStream;
};
/****************************************************************************/
/*!
\class QJsonClient
\brief The QJsonClient class is used to send jsons to the QJsonServer.
Note: The QJsonClient is not thread safe.
*/
/*!
Construct a new QJsonClient instance with \a registration token and optional \a parent.
The token will be passed in \c{{"token": registration}}. This constructor
is designed to work with QJsonTokenAuthority.
*/
QJsonClient::QJsonClient(const QString& registration, QObject* parent)
: QObject(parent),
d_ptr(new QJsonClientPrivate())
{
Q_D(QJsonClient);
d->mRegistrationMessage.insert(QStringLiteral("token"), registration);
}
/*!
Construct a new QJsonClient instance with registration \a message and optional \a parent.
*/
QJsonClient::QJsonClient(const QJsonObject& message, QObject *parent)
: QObject(parent),
d_ptr(new QJsonClientPrivate(message))
{
}
/*!
Construct a new QJsonClient instance with an optional \a parent.
*/
QJsonClient::QJsonClient(QObject *parent)
: QObject(parent),
d_ptr(new QJsonClientPrivate())
{
}
/*!
Destroy the QJsonClient and shut down any active stream.
*/
QJsonClient::~QJsonClient()
{
// Variant streams don't own the socket
Q_D(QJsonClient);
QIODevice *device = d->mStream.device();
d->mStream.setDevice(0);
if (device)
delete device;
}
/*!
Connect to the QJsonServer over a TCP socket at \a hostname and \a port. Send the initial registration message.
Return true if the connection is successful.
*/
bool QJsonClient::connectTCP(const QString& hostname, int port)
{
QTcpSocket *socket = new QTcpSocket(this);
socket->connectToHost(hostname, port);
if (socket->waitForConnected()) {
connect(socket, SIGNAL(disconnected()), SLOT(handleSocketDisconnected()));
Q_D(QJsonClient);
d->mStream.setDevice(socket);
connect(&d->mStream, SIGNAL(readyReadMessage()), this, SLOT(processMessages()));
return d->mStream.send(d->mRegistrationMessage);
}
return false;
}
/*!
Connect to the QJsonServer over a Unix local socket to \a socketname and send the initial registration message.
Return true if the connection is successful.
*/
bool QJsonClient::connectLocal(const QString& socketname)
{
if (!QFile::exists(socketname)) {
qWarning() << Q_FUNC_INFO << "socket does not exist";
return false;
}
QLocalSocket *socket = new QLocalSocket(this);
socket->setReadBufferSize(64*1024);
socket->connectToServer(socketname);
if (socket->waitForConnected()) {
connect(socket, SIGNAL(disconnected()), SLOT(handleSocketDisconnected()));
Q_D(QJsonClient);
d->mStream.setDevice(socket);
connect(&d->mStream, SIGNAL(readyReadMessage()), this, SLOT(processMessages()));
// qDebug() << "Sending local socket registration message" << mRegistrationMessage;
return d->mStream.send(d->mRegistrationMessage);
}
delete socket;
return false;
}
/*!
Send a \a message over the socket.
Returns true if the entire message was send/buffered or false otherwise.
*/
bool QJsonClient::send(const QJsonObject &message)
{
bool ret = false;
Q_D(QJsonClient);
if (d->mStream.isOpen()) {
ret = d->mStream.send(message);
} else {
qCritical() << Q_FUNC_INFO << "stream socket is not available";
}
return ret;
}
/*!
Set the current stream encoding \a format.
This controls how messages will be sent
*/
void QJsonClient::setFormat( EncodingFormat format )
{
Q_D(QJsonClient);
d->mStream.setFormat(format);
}
/*!
\internal
*/
void QJsonClient::handleSocketDisconnected()
{
Q_D(QJsonClient);
QIODevice *device = d->mStream.device();
if (!device)
return;
d->mStream.setDevice(0);
device->deleteLater();
emit disconnected();
}
/*!
\internal
*/
void QJsonClient::processMessages()
{
Q_D(QJsonClient);
while (d->mStream.messageAvailable()) {
QJsonObject obj = d->mStream.readMessage();
if (!obj.isEmpty())
emit messageReceived(obj);
}
}
/*!
\fn void QJsonClient::messageReceived(const QJsonObject &message)
This signal is emitted when a \a message is received from the server.
*/
/*!
\fn void QJsonClient::disconnected()
This signal is emitted when the client socket is disconnected.
*/
#include "moc_qjsonclient.cpp"
QT_END_NAMESPACE_JSONSTREAM
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