summaryrefslogtreecommitdiffstats
path: root/src/network/access/qabstractnetworkcache.h
blob: d9091d94093211362432967ad9937b430b71f693 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
/****************************************************************************
**
** 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 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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#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