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/*
* StorageBackendFile.cpp
*
* Copyright (C) 2009 Matthias Schiffer <matthias@gamezock.de>
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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 program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "StorageBackendFile.h"
#include <Core/ConfigEntry.h>
#include <boost/filesystem.hpp>
#include <boost/thread/locks.hpp>
namespace Mad {
namespace Modules {
namespace StorageBackendFile {
void StorageBackendFile::configure() {
boost::lock_guard<boost::shared_mutex> lock(mutex);
storageRoot = application->getConfigManager()->get("Storage.Root").toLocale();
if(!boost::filesystem::exists(storageRoot)) {
boost::filesystem::create_directories(storageRoot);
}
if(!boost::filesystem::is_directory(storageRoot)) {
application->log(Core::Format("StorageBackendFile: Can't create directory: '%1%'.") % storageRoot.string());
return;
}
configured = true;
}
boost::filesystem::path StorageBackendFile::getFileName(const Core::String &type, const Core::String &name) {
boost::filesystem::path path(storageRoot);
path /= type.toLocale();
path /= Core::String(name + ".xml").toLocale();
return path;
}
std::set<Core::String> StorageBackendFile::listTypes() throw (Core::Exception) {
boost::shared_lock<boost::shared_mutex> lock(mutex);
if(!configured)
throw Core::Exception(Core::Exception::NOT_AVAILABLE);
std::set<Core::String> ret;
try {
for(boost::filesystem::directory_iterator it(storageRoot); it != boost::filesystem::directory_iterator(); ++it) {
boost::filesystem::path path = *it;
if(boost::filesystem::is_directory(path))
ret.insert(path.filename().c_str());
}
}
catch(...) {} // Don't throw if we can't iterate over the dirs
return ret;
}
std::set<Core::String> StorageBackendFile::list(const Core::String &type) throw (Core::Exception) {
boost::shared_lock<boost::shared_mutex> lock(mutex);
if(!configured)
throw Core::Exception(Core::Exception::NOT_AVAILABLE);
std::set<Core::String> ret;
boost::filesystem::path path(storageRoot);
path /= type.toLocale();
try {
for(boost::filesystem::directory_iterator it(path); it != boost::filesystem::directory_iterator(); ++it) {
boost::filesystem::path filePath = *it;
if(boost::filesystem::is_regular_file(filePath) && filePath.extension() == ".xml")
ret.insert(filePath.replace_extension().filename().c_str());
}
}
catch(...) {} // Don't throw if we can't iterate over the dirs
return ret;
}
bool StorageBackendFile::exists(const Core::String &type, const Core::String &name) throw (Core::Exception) {
boost::shared_lock<boost::shared_mutex> lock(mutex);
if(!configured)
throw Core::Exception(Core::Exception::NOT_AVAILABLE);
boost::filesystem::path path = getFileName(type, name);
return boost::filesystem::is_regular_file(path);
}
void StorageBackendFile::store(const Core::String &type, const Core::String &name, const Common::XmlData *data) throw (Core::Exception) {
boost::lock_guard<boost::shared_mutex> lock(mutex);
if(!configured)
throw Core::Exception(Core::Exception::NOT_AVAILABLE);
boost::filesystem::path path = getFileName(type, name);
boost::filesystem::create_directories(path.parent_path().directory_string());
data->toFile(path.file_string());
}
boost::shared_ptr<Common::XmlData> StorageBackendFile::load(const Core::String &type, const Core::String &name) throw (Core::Exception) {
boost::shared_lock<boost::shared_mutex> lock(mutex);
if(!configured)
throw Core::Exception(Core::Exception::NOT_AVAILABLE);
boost::filesystem::path path = getFileName(type, name);
if(!boost::filesystem::is_regular_file(path))
throw Core::Exception(Core::Exception::NOT_FOUND);
return boost::shared_ptr<Common::XmlData>(new Common::XmlData(path.file_string()));
}
void StorageBackendFile::copy(const Core::String &type, const Core::String &name, const Core::String &newName) throw (Core::Exception) {
boost::lock_guard<boost::shared_mutex> lock(mutex);
if(!configured)
throw Core::Exception(Core::Exception::NOT_AVAILABLE);
boost::filesystem::path path = getFileName(type, name);
boost::filesystem::path newPath = getFileName(type, newName);
boost::filesystem::copy_file(path, newPath);
}
void StorageBackendFile::rename(const Core::String &type, const Core::String &name, const Core::String &newName) throw (Core::Exception) {
boost::lock_guard<boost::shared_mutex> lock(mutex);
if(!configured)
throw Core::Exception(Core::Exception::NOT_AVAILABLE);
boost::filesystem::path path = getFileName(type, name);
boost::filesystem::path newPath = getFileName(type, newName);
boost::filesystem::rename(path, newPath);
}
void StorageBackendFile::remove(const Core::String &type, const Core::String &name) throw (Core::Exception) {
boost::lock_guard<boost::shared_mutex> lock(mutex);
if(!configured)
throw Core::Exception(Core::Exception::NOT_AVAILABLE);
boost::filesystem::path path = getFileName(type, name);
boost::filesystem::remove(path);
}
}
}
}
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