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/*
* Copyright (C) 2014 Aaron Seigo <aseigo@kde.org>
* Copyright (C) 2014 Christian Mollekopf <mollekopf@kolabsys.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) version 3, or any
* later version accepted by the membership of KDE e.V. (or its
* successor approved by the membership of KDE e.V.), which shall
* act as a proxy defined in Section 6 of version 3 of the license.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "storage.h"
#include <iostream>
namespace Akonadi2
{
static const char *s_internalPrefix = "__internal";
static const int s_internalPrefixSize = strlen(s_internalPrefix);
void errorHandler(const Storage::Error &error)
{
//TODO: allow this to be turned on / off globally
//TODO: log $SOMEWHERE $SOMEHOW rather than just spit to stderr
std::cout << "Read error in " << error.store.toStdString() << ", code " << error.code << ", message: " << error.message.toStdString() << std::endl;
}
std::function<void(const Storage::Error &error)> Storage::basicErrorHandler()
{
return errorHandler;
}
void Storage::setDefaultErrorHandler(const std::function<void(const Storage::Error &error)> &errorHandler)
{
mErrorHandler = errorHandler;
}
std::function<void(const Storage::Error &error)> Storage::defaultErrorHandler()
{
if (mErrorHandler) {
return mErrorHandler;
}
return basicErrorHandler();
}
int Storage::scan(const QByteArray &key, const std::function<bool(const QByteArray &value)> &resultHandler, const std::function<void(const Storage::Error &error)> &errorHandler)
{
return scan(key, [&resultHandler](void *keyPtr, int keySize, void *valuePtr, int valueSize) {
return resultHandler(QByteArray::fromRawData((char*)(valuePtr), valueSize));
},
errorHandler);
}
bool Storage::write(const QByteArray &sKey, const QByteArray &sValue, const std::function<void(const Storage::Error &error)> &errorHandler)
{
return write(const_cast<char*>(sKey.data()), sKey.size(), const_cast<char*>(sValue.data()), sValue.size(), errorHandler);
}
void Storage::setMaxRevision(qint64 revision)
{
write("__internal_maxRevision", QByteArray::number(revision));
}
qint64 Storage::maxRevision()
{
qint64 r = 0;
scan("__internal_maxRevision", [&](const QByteArray &revision) -> bool {
r = revision.toLongLong();
return false;
}, [this](const Error &error){
if (error.code != ErrorCodes::NotFound) {
defaultErrorHandler()(error);
}
});
return r;
}
bool Storage::isInternalKey(const char *key)
{
return key && strncmp(key, s_internalPrefix, s_internalPrefixSize) == 0;
}
bool Storage::isInternalKey(void *key, int size)
{
if (size < 1) {
return false;
}
return key && strncmp(static_cast<char *>(key), s_internalPrefix, (size > s_internalPrefixSize ? s_internalPrefixSize : size)) == 0;
}
bool Storage::isInternalKey(const QByteArray &key)
{
return key.startsWith(s_internalPrefix);
}
} // namespace Akonadi2
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