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/**************************************************************************
**
** This file is part of the Qt Build Suite
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (info@qt.nokia.com)
**
**
** 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.
**
**************************************************************************/
#include "persistence.h"
#include "fileinfo.h"
#include <QtCore/QDir>
#include <stdio.h>
namespace qbs {
static const char QBS_PERSISTENCE_MAGIC[] = "QBSPERSISTENCE0_0_1__1";
PersistentPool::PersistentPool()
{
}
PersistentPool::~PersistentPool()
{
}
bool PersistentPool::load(const QString &filePath, const LoadMode loadMode)
{
QFile file(filePath);
if (!file.open(QFile::ReadOnly))
return false;
QDataStream s(&file);
QByteArray magic;
s >> magic;
if (magic != QBS_PERSISTENCE_MAGIC) {
file.close();
file.remove();
return false;
}
s >> m_headData.projectConfig;
if (loadMode == LoadHeadData)
return true;
s >> m_stringStorage;
m_inverseStringStorage.reserve(m_stringStorage.count());
for (int i = m_stringStorage.count(); --i >= 0;)
m_inverseStringStorage.insert(m_stringStorage.at(i), i);
s >> m_storage;
m_loadedRaw.reserve(m_storage.count());
m_loaded.reserve(m_storage.count());
return true;
}
bool PersistentPool::store(const QString &filePath)
{
QString dirPath = FileInfo::path(filePath);
if (!FileInfo::exists(dirPath))
if (!QDir().mkpath(dirPath))
return false;
if (QFile::exists(filePath) && !QFile::remove(filePath))
return false;
Q_ASSERT(!QFile::exists(filePath));
QFile file(filePath);
if (!file.open(QFile::WriteOnly))
return false;
QDataStream s(&file);
s << QByteArray(QBS_PERSISTENCE_MAGIC);
s << m_headData.projectConfig;
s << m_stringStorage;
s << m_storage;
return true;
}
PersistentObjectId PersistentPool::store(PersistentObject *object)
{
if (!object)
return 0;
PersistentObjectId id = m_storageIndices.value(object, -1);
if (id < 0) {
PersistentObjectData data;
id = qMax(m_storage.count(), m_maxReservedId + 1);
m_storageIndices.insert(object, id);
m_storage.resize(id + 1);
m_storage[id] = data;
object->store(*this, data);
m_storage[id] = data;
}
return id;
}
void PersistentPool::clear()
{
m_loaded.clear();
m_storage.clear();
m_storageIndices.clear();
m_stringStorage.clear();
m_inverseStringStorage.clear();
}
PersistentObjectData PersistentPool::getData(PersistentObjectId id) const
{
return m_storage.at(id);
}
void PersistentPool::setData(PersistentObjectId id, PersistentObjectData data)
{
Q_ASSERT(id <= m_maxReservedId);
if (id >= m_storage.count())
m_storage.resize(id + 1);
m_storage[id] = data;
}
int PersistentPool::storeString(const QString &t)
{
if (t.isEmpty())
return 0;
int id = m_inverseStringStorage.value(t, -1);
if (id < 0) {
id = m_stringStorage.count();
m_inverseStringStorage.insert(t, id);
m_stringStorage.append(t);
}
return id;
}
QString PersistentPool::loadString(int id)
{
if (id == 0)
return QString();
if (id < 0 || id >= m_stringStorage.count())
throw Error(QString("storage error: no string id %1 stored.").arg(id));
return m_stringStorage.at(id);
}
QString PersistentPool::idLoadString(QDataStream &s)
{
int id;
s >> id;
return loadString(id);
}
QList<int> PersistentPool::storeStringSet(const QSet<QString> &t)
{
QList<int> r;
r.reserve(t.count());
foreach (const QString &s, t)
r += storeString(s);
return r;
}
QSet<QString> PersistentPool::loadStringSet(const QList<int> &ids)
{
QSet<QString> r;
r.reserve(ids.count());
foreach (int id, ids)
r.insert(loadString(id));
return r;
}
QSet<QString> PersistentPool::idLoadStringSet(QDataStream &s)
{
QList<int> list;
s >> list;
return loadStringSet(list);
}
QList<int> PersistentPool::storeStringList(const QStringList &t)
{
QList<int> r;
r.reserve(t.count());
foreach (const QString &s, t)
r += storeString(s);
return r;
}
QStringList PersistentPool::loadStringList(const QList<int> &ids)
{
QStringList result;
result.reserve(ids.count());
foreach (const int &id, ids)
result.append(loadString(id));
return result;
}
QStringList PersistentPool::idLoadStringList(QDataStream &s)
{
QList<int> list;
s >> list;
return loadStringList(list);
}
} // namespace qbs
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