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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtAddOn.JsonDb 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.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef JSONDBMODELUTILS_P_H
#define JSONDBMODELUTILS_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the QtJsonDb API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QSharedData>
#include <QStringList>
#include <QUuid>
#include <QVariant>
#include <QPointer>
#include <QJsonDbWatcher>
#include <QJsonDbReadRequest>
QT_BEGIN_NAMESPACE_JSONDB
struct NotificationItem {
int partitionIndex;
QJsonObject item;
QJsonDbWatcher::Action action;
};
struct NotifyItem {
int partitionIndex;
QVariantMap item;
QJsonDbWatcher::Action action;
};
struct SortIndexSpec
{
QString propertyName;
QString name;
bool caseSensitive;
enum Type { None, String, Number, UUID };
Type type;
SortIndexSpec() : caseSensitive(true), type(SortIndexSpec::None) {}
SortIndexSpec(const SortIndexSpec &other)
: propertyName(other.propertyName),
name(other.name),
caseSensitive(other.caseSensitive),
type(other.type)
{}
};
class Q_JSONDB_EXPORT ModelRequest : public QObject
{
Q_OBJECT
public:
ModelRequest(QObject *parent = 0);
~ModelRequest();
QJsonDbReadRequest* newRequest(int newIndex);
void resetRequest();
Q_SIGNALS:
void finished(int index, const QList<QJsonObject> &items, const QString &sortKey);
void error(QtJsonDb::QJsonDbRequest::ErrorCode code, const QString &message);
private Q_SLOTS:
void onQueryFinished();
private:
QPointer<QJsonDbReadRequest> request;
int index;
};
struct IndexInfo
{
SortIndexSpec spec;
bool valid;
IndexInfo () {clear();}
void clear() {
valid = false;
spec.type = SortIndexSpec::None;
}
};
class SortingKeyPrivate;
class Q_JSONDB_EXPORT SortingKey {
public:
SortingKey(int partitionIndex, const QVariantMap &object, const QList<bool> &directions, const QList<QStringList> &paths, const SortIndexSpec &spec = SortIndexSpec());
SortingKey(int partitionIndex, const QVariantList &object, const QList<bool> &directions, const SortIndexSpec &spec = SortIndexSpec());
SortingKey(int partitionIndex, const QByteArray &uuid, const QVariantList &object, const QList<bool> &directions, const SortIndexSpec &spec = SortIndexSpec());
SortingKey(int partitionIndex, const QByteArray &uuid, const QVariant &value, bool direction, const SortIndexSpec &spec);
SortingKey(const SortingKey&);
SortingKey() {}
int partitionIndex() const;
QVariant value() const;
bool operator <(const SortingKey &rhs) const;
bool operator ==(const SortingKey &rhs) const;
private:
QSharedDataPointer<SortingKeyPrivate> d;
};
struct RequestInfo
{
int lastOffset;
int lastSize;
int requestCount;
QPointer<QJsonDbWatcher> watcher;
RequestInfo() { clear();}
void clear()
{
lastOffset = 0;
lastSize = -1;
requestCount = 0;
if (watcher) {
delete watcher;
watcher = 0;
}
}
};
class SortingKeyPrivate : public QSharedData {
public:
SortingKeyPrivate(int index, const QByteArray &objectUuid, QList<bool> objectDirections, QVariantList objectKeys, const SortIndexSpec &spec)
:uuid(objectUuid), directions(0), values(0), count(0), partitionIndex(index), indexSpec(spec)
{
count = objectDirections.count();
directions = new bool[count];
for (int i=0; i<count; i++) {
directions[i] = objectDirections[i];
}
count = objectKeys.count();
values = new QVariant[count];
for (int i=0; i<count; i++) {
values[i] = objectKeys[i];
}
if (spec.type == SortIndexSpec::UUID)
values[0] = QUuid(objectKeys[0].toString()).toRfc4122();
}
SortingKeyPrivate(int index, const QByteArray &objectUuid, bool direction, const QVariant &objectKey, const SortIndexSpec &spec)
:uuid(objectUuid), directions(0), values(0), count(0), partitionIndex(index), indexSpec(spec)
{
count = 1;
directions = new bool[1];
directions[0] = direction;
values = new QVariant[1];
// Perf improvement
// Change uuid to RFC4122/ByteArray already here
// To speed up comparisons
if (spec.type == SortIndexSpec::UUID)
values[0] = QUuid(objectKey.toString()).toRfc4122();
else values[0] = objectKey;
}
~SortingKeyPrivate()
{
delete [] directions;
delete [] values;
}
QByteArray uuid;
bool *directions;
QVariant *values;
int count;
int partitionIndex;
SortIndexSpec indexSpec;
};
template <typename T> int iterator_position(T &begin, T &end, T &value)
{
int i = 0;
for (T itr = begin;(itr != end && itr != value); i++, itr++) {}
return i;
}
Q_JSONDB_EXPORT QVariant lookupProperty(QVariantMap object, const QStringList &path);
Q_JSONDB_EXPORT QJsonValue lookupJsonProperty(QJsonObject object, const QStringList &path);
Q_JSONDB_EXPORT QString removeArrayOperator(QString propertyName);
Q_JSONDB_EXPORT QList<QJsonObject> qvariantlist_to_qjsonobject_list(const QVariantList &list);
Q_JSONDB_EXPORT QVariantList qjsonobject_list_to_qvariantlist(const QList<QJsonObject> &list);
QT_END_NAMESPACE_JSONDB
#endif // JSONDBMODELUTILS_P_H
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