/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/



// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_dbaccess.hxx"

#ifndef _DBAUI_MODULE_DBU_HXX_
#include "moduledbu.hxx"
#endif

#ifndef _TOOLS_RESMGR_HXX
#include <tools/resmgr.hxx>
#endif
#ifndef _SOLAR_HRC
#include <svl/solar.hrc>
#endif
#ifndef _TOOLS_DEBUG_HXX
#include <tools/debug.hxx>
#endif

#define ENTER_MOD_METHOD()	\
	::osl::MutexGuard aGuard(s_aMutex);	\
	ensureImpl()
	
//.........................................................................
namespace dbaui
{
//.........................................................................

//=========================================================================
//= OModuleImpl
//=========================================================================
/** implementation for <type>OModule</type>. not threadsafe, has to be guarded by it's owner
*/
class OModuleImpl
{
	ResMgr*	m_pRessources;

public:
	/// ctor
	OModuleImpl();
	~OModuleImpl();

	/// get the manager for the ressources of the module
	ResMgr*	getResManager();
};

DBG_NAME(OModuleImpl)
//-------------------------------------------------------------------------
OModuleImpl::OModuleImpl()
	:m_pRessources(NULL)
{
    DBG_CTOR(OModuleImpl,NULL);

}

//-------------------------------------------------------------------------
OModuleImpl::~OModuleImpl()
{
	if (m_pRessources)
		delete m_pRessources;

    DBG_DTOR(OModuleImpl,NULL);
}

//-------------------------------------------------------------------------
ResMgr*	OModuleImpl::getResManager()
{
	// note that this method is not threadsafe, which counts for the whole class !

	if (!m_pRessources)
	{
		// create a manager with a fixed prefix
		ByteString aMgrName = ByteString( "dbu" );
		m_pRessources = ResMgr::CreateResMgr(aMgrName.GetBuffer());
	}
	return m_pRessources;
}

//=========================================================================
//= OModule
//=========================================================================
::osl::Mutex	OModule::s_aMutex;
sal_Int32		OModule::s_nClients = 0;
OModuleImpl*	OModule::s_pImpl = NULL;
//-------------------------------------------------------------------------
ResMgr*	OModule::getResManager()
{
	ENTER_MOD_METHOD();
	return s_pImpl->getResManager();
}

//-------------------------------------------------------------------------
void OModule::registerClient()
{
	::osl::MutexGuard aGuard(s_aMutex);
	++s_nClients;
}

//-------------------------------------------------------------------------
void OModule::revokeClient()
{
	::osl::MutexGuard aGuard(s_aMutex);
	if (!--s_nClients && s_pImpl)
	{
		delete s_pImpl;
		s_pImpl = NULL;
	}
}

//-------------------------------------------------------------------------
void OModule::ensureImpl()
{
	if (s_pImpl)
		return;
	s_pImpl = new OModuleImpl();
}

//.........................................................................
}	// namespace dbaui
//.........................................................................