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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.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "jsondbsettings.h"
#include <QDebug>
#include <QMetaObject>
#include <QMetaProperty>
#include <QVector>
#include "jsondbutils_p.h"
QT_BEGIN_NAMESPACE_JSONDB_PARTITION
Q_GLOBAL_STATIC(JsonDbSettings, staticInstance)
JsonDbSettings::JsonDbSettings() :
mRejectStaleUpdates(false)
, mDebug(false)
, mDebugIndexes(false)
, mVerbose(false)
, mVerboseErrors(false)
, mPerformanceLog(false)
, mCacheSize(20)
, mCompactRate(1000)
, mEnforceAccessControl(false)
, mTransactionSize(100)
, mValidateSchemas(false)
, mSoftValidation(false)
, mSyncInterval(5000)
, mIndexSyncInterval(12000)
, mDebugQuery(false)
, mIndexFieldValueSize(512 - 20) // Should be even and no bigger than maxBtreeKeySize - 20 (the 20 for uuid + index type data)
, mMinimumRequiredSpace(16384) // By default we resort to 16K, which is the minimum needed by HBTree.
, mChangeLogCacheVersions(10) // 10 versions more than compulsory
, mUseStrictMode(false)
, mOffsetCacheSize(512)
, mMaxQueriesInOffsetCache(16)
{
loadEnvironment();
}
void JsonDbSettings::loadEnvironment()
{
// loop through all the properties, converting from the property
// name to the environment variable name
const QMetaObject *meta = metaObject();
QVector<QByteArray> envVariables;
envVariables.reserve(meta->propertyCount());
for (int i = 0; i < meta->propertyCount(); i++) {
QMetaProperty property(meta->property(i));
QString propertyName = QString::fromLatin1(property.name());
QString envVariable(QStringLiteral("JSONDB_"));
for (int j = 0; j < propertyName.count(); j++) {
if (j > 0 && propertyName.at(j).isUpper() && !propertyName.at(j - 1).isUpper())
envVariable += QLatin1Char('_') + propertyName.at(j);
else
envVariable += propertyName.at(j).toUpper();
}
envVariables.append(envVariable.toLatin1());
QByteArray value = qgetenv(envVariables[i]);
if (value.size()) {
switch (property.type()) {
case QVariant::Bool:
property.write(this, value == "true");
break;
case QVariant::Int:
property.write(this, value.toInt());
break;
case QVariant::String:
property.write(this, QString::fromLatin1(value));
break;
case QVariant::StringList:
property.write(this, QString::fromLatin1(value).split(QLatin1Char(':')));
break;
default:
qWarning() << JSONDB_WARN << "unknown property type" << property.name() << property.type();
}
}
}
if (debug()) {
Q_ASSERT(envVariables.size() == meta->propertyCount());
qDebug() << JSONDB_INFO << "JsonDb Environment:";
for (int i = 0; i < meta->propertyCount(); i++) {
QMetaProperty property(meta->property(i));
switch (property.type()) {
case QVariant::Bool:
case QVariant::Int:
case QVariant::String:
qDebug().nospace() << envVariables[i] << " = " << property.read(this).toString();
break;
case QVariant::StringList:
qDebug().nospace() << envVariables[i] << " = " << property.read(this).toStringList();
break;
default:
qWarning() << JSONDB_WARN << "unknown property type" << property.name() << property.type();
}
}
}
}
JsonDbSettings *JsonDbSettings::instance()
{
return staticInstance();
}
#include "moc_jsondbsettings.cpp"
QT_END_NAMESPACE_JSONDB_PARTITION
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