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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtAddOn.JsonDb module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QDebug>
#include <QList>
#include <QMap>
#include <QVariantList>
#include <QString>
#include <QStringList>
#include "jsondbindex.h"
#include "jsondbobjecttable.h"
#include "jsondbnotification.h"
#include "jsondbpartition.h"
#include "jsondbquery.h"
#include "jsondbstrings.h"
QT_BEGIN_NAMESPACE_JSONDB_PARTITION
JsonDbNotification::JsonDbNotification(const JsonDbOwner *owner, const JsonDbQuery &query,
QStringList actions, qint32 initialStateNumber)
: mOwner(owner)
, mCompiledQuery(query)
, mActions(None)
, mPartition(0)
, mObjectTable(0)
, mInitialStateNumber(initialStateNumber)
, mLastStateNumber(0)
{
foreach (QString s, actions) {
if (s == JsonDbString::kCreateStr)
mActions |= Create;
else if (s == JsonDbString::kUpdateStr)
mActions |= Update;
else if (s == JsonDbString::kRemoveStr)
mActions |= Remove;
}
}
JsonDbNotification::~JsonDbNotification()
{
}
void JsonDbNotification::notifyIfMatches(JsonDbObjectTable *objectTable, const JsonDbObject &oldObject, const JsonDbObject &newObject,
Action action, quint32 stateNumber)
{
if (objectTable != mObjectTable)
return;
JsonDbNotification::Action effectiveAction = action;
JsonDbObject r;
bool oldMatches = mCompiledQuery.match(oldObject, 0 /* cache */, 0/*mStorage*/);
bool newMatches = mCompiledQuery.match(newObject, 0 /* cache */, 0/*mStorage*/);
if (oldMatches || newMatches)
r = newObject;
if (!oldMatches && newMatches) {
effectiveAction = JsonDbNotification::Create;
} else if (oldMatches && (!newMatches || newObject.isDeleted())) {
r = oldObject;
if (newObject.isDeleted())
r.insert(JsonDbString::kDeletedStr, true);
effectiveAction = JsonDbNotification::Remove;
} else if (oldMatches && newMatches) {
effectiveAction = JsonDbNotification::Update;
}
if (!r.isEmpty() &&
(mActions & effectiveAction) &&
mOwner->isAllowed(r, mPartition ? mPartition->partitionSpec().name : QStringLiteral("Ephemeral"), QStringLiteral("read"))) {
// FIXME: looking up of _indexValue should be encapsulated in JsonDbPartition
if (mPartition && !mCompiledQuery.orderTerms.isEmpty()) {
const QString &indexName = mCompiledQuery.orderTerms.at(0).propertyName;
QString objectType = r.type();
JsonDbObjectTable *objectTable = mPartition->findObjectTable(objectType);
JsonDbIndex *index = objectTable->index(indexName);
if (index) {
QList<QJsonValue> indexValues = index->indexValues(r);
if (!indexValues.isEmpty())
r.insert(JsonDbString::kIndexValueStr, indexValues.at(0));
}
}
emit notified(r, stateNumber, effectiveAction);
mLastStateNumber = stateNumber;
}
}
void JsonDbNotification::notifyStateChange()
{
QJsonObject stateChange;
stateChange.insert(QStringLiteral("_state"), static_cast<int>(mLastStateNumber));
emit notified(stateChange, mLastStateNumber, StateChange);
}
#include "moc_jsondbnotification.cpp"
QT_END_NAMESPACE_JSONDB_PARTITION
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