icinga2/lib/config/configcompilercontext.cpp

90 lines
3.0 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2016 Icinga Development Team (https://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "config/configcompilercontext.hpp"
#include "base/singleton.hpp"
#include "base/json.hpp"
#include "base/netstring.hpp"
#include "base/exception.hpp"
#include <boost/foreach.hpp>
#include <fstream>
using namespace icinga;
ConfigCompilerContext *ConfigCompilerContext::GetInstance(void)
{
return Singleton<ConfigCompilerContext>::GetInstance();
}
void ConfigCompilerContext::OpenObjectsFile(const String& filename)
{
m_ObjectsPath = filename;
std::fstream *fp = new std::fstream();
m_ObjectsTempFile = Utility::CreateTempFile(filename + ".XXXXXX", 0600, *fp);
if (!*fp)
BOOST_THROW_EXCEPTION(std::runtime_error("Could not open '" + m_ObjectsTempFile + "' file"));
m_ObjectsFP = new StdioStream(fp, true);
}
void ConfigCompilerContext::WriteObject(const Dictionary::Ptr& object)
{
if (!m_ObjectsFP)
return;
String json = JsonEncode(object);
{
boost::mutex::scoped_lock lock(m_Mutex);
NetString::WriteStringToStream(m_ObjectsFP, json);
}
}
void ConfigCompilerContext::CancelObjectsFile(void)
{
m_ObjectsFP->Close();
m_ObjectsFP.reset();
#ifdef _WIN32
_unlink(m_ObjectsTempFile.CStr());
#else /* _WIN32 */
unlink(m_ObjectsTempFile.CStr());
#endif /* _WIN32 */
}
void ConfigCompilerContext::FinishObjectsFile(void)
{
m_ObjectsFP->Close();
m_ObjectsFP.reset();
#ifdef _WIN32
_unlink(m_ObjectsPath.CStr());
#endif /* _WIN32 */
if (rename(m_ObjectsTempFile.CStr(), m_ObjectsPath.CStr()) < 0) {
BOOST_THROW_EXCEPTION(posix_error()
<< boost::errinfo_api_function("rename")
<< boost::errinfo_errno(errno)
<< boost::errinfo_file_name(m_ObjectsTempFile));
}
}