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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtNetwork module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, 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 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QABSTRACTNETWORKCACHE_H
#define QABSTRACTNETWORKCACHE_H
#include <QtCore/qobject.h>
#include <QtCore/qshareddata.h>
#include <QtCore/qpair.h>
#include <QtNetwork/qnetworkrequest.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Network)
class QIODevice;
class QDateTime;
class QUrl;
template<class T> class QList;
class QNetworkCacheMetaDataPrivate;
class Q_NETWORK_EXPORT QNetworkCacheMetaData
{
public:
typedef QPair<QByteArray, QByteArray> RawHeader;
typedef QList<RawHeader> RawHeaderList;
typedef QHash<QNetworkRequest::Attribute, QVariant> AttributesMap;
QNetworkCacheMetaData();
QNetworkCacheMetaData(const QNetworkCacheMetaData &other);
~QNetworkCacheMetaData();
QNetworkCacheMetaData &operator=(const QNetworkCacheMetaData &other);
bool operator==(const QNetworkCacheMetaData &other) const;
inline bool operator!=(const QNetworkCacheMetaData &other) const
{ return !(*this == other); }
bool isValid() const;
QUrl url() const;
void setUrl(const QUrl &url);
RawHeaderList rawHeaders() const;
void setRawHeaders(const RawHeaderList &headers);
QDateTime lastModified() const;
void setLastModified(const QDateTime &dateTime);
QDateTime expirationDate() const;
void setExpirationDate(const QDateTime &dateTime);
bool saveToDisk() const;
void setSaveToDisk(bool allow);
AttributesMap attributes() const;
void setAttributes(const AttributesMap &attributes);
private:
friend class QNetworkCacheMetaDataPrivate;
QSharedDataPointer<QNetworkCacheMetaDataPrivate> d;
};
Q_NETWORK_EXPORT QDataStream &operator<<(QDataStream &, const QNetworkCacheMetaData &);
Q_NETWORK_EXPORT QDataStream &operator>>(QDataStream &, QNetworkCacheMetaData &);
class QAbstractNetworkCachePrivate;
class Q_NETWORK_EXPORT QAbstractNetworkCache : public QObject
{
Q_OBJECT
public:
virtual ~QAbstractNetworkCache();
virtual QNetworkCacheMetaData metaData(const QUrl &url) = 0;
virtual void updateMetaData(const QNetworkCacheMetaData &metaData) = 0;
virtual QIODevice *data(const QUrl &url) = 0;
virtual bool remove(const QUrl &url) = 0;
virtual qint64 cacheSize() const = 0;
virtual QIODevice *prepare(const QNetworkCacheMetaData &metaData) = 0;
virtual void insert(QIODevice *device) = 0;
public Q_SLOTS:
virtual void clear() = 0;
protected:
explicit QAbstractNetworkCache(QObject *parent = 0);
QAbstractNetworkCache(QAbstractNetworkCachePrivate &dd, QObject *parent);
private:
Q_DECLARE_PRIVATE(QAbstractNetworkCache)
Q_DISABLE_COPY(QAbstractNetworkCache)
};
QT_END_NAMESPACE
QT_END_HEADER
#endif
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