/**************************************************************
 * 
 * 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_cui.hxx"
#include "sdbcdriverenum.hxx"
#include <comphelper/stl_types.hxx>
#include <comphelper/processfactory.hxx>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/container/XEnumerationAccess.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>

//........................................................................
namespace offapp
{
//........................................................................

	using namespace ::com::sun::star::uno;
	using namespace ::com::sun::star::lang;
	using namespace ::com::sun::star::container;

	//====================================================================
	//= ODriverEnumerationImpl
	//====================================================================
	class ODriverEnumerationImpl
	{
	protected:
		::std::vector< ::rtl::OUString >	m_aImplNames;

	public:
		ODriverEnumerationImpl();

		const ::std::vector< ::rtl::OUString >& getDriverImplNames() const { return m_aImplNames; }
	};

	//--------------------------------------------------------------------
	ODriverEnumerationImpl::ODriverEnumerationImpl()
	{
		try
		{
			Reference< XMultiServiceFactory > xORB = ::comphelper::getProcessServiceFactory();
			Reference< XInterface > xDM = xORB->createInstance(::rtl::OUString::createFromAscii("com.sun.star.sdbc.DriverManager"));
			OSL_ENSURE(xDM.is(), "ODriverEnumerationImpl::ODriverEnumerationImpl: no access to the SDBC driver manager!");

			Reference< XEnumerationAccess > xEnumAccess(xDM, UNO_QUERY);
			OSL_ENSURE(xEnumAccess.is() || !xDM.is(), "ODriverEnumerationImpl::ODriverEnumerationImpl: can't enumerate SDBC drivers (missing the interface)!");
			if (xEnumAccess.is())
			{
				Reference< XEnumeration > xEnumDrivers = xEnumAccess->createEnumeration();
				OSL_ENSURE(xEnumDrivers.is(), "ODriverEnumerationImpl::ODriverEnumerationImpl: invalid enumeration object!");

				Reference< XServiceInfo > xDriverSI;
				while (xEnumDrivers->hasMoreElements())
				{
					xEnumDrivers->nextElement() >>= xDriverSI;
					OSL_ENSURE(xDriverSI.is(), "ODriverEnumerationImpl::ODriverEnumerationImpl: driver without service info!");
					if (xDriverSI.is())
						m_aImplNames.push_back(xDriverSI->getImplementationName());
				}
			}
		}
		catch(const Exception&)
		{
			OSL_ENSURE(sal_False, "ODriverEnumerationImpl::ODriverEnumerationImpl: caught an exception while enumerating the drivers!");
		}
	}

	//====================================================================
	//= ODriverEnumeration
	//====================================================================
	//--------------------------------------------------------------------
	ODriverEnumeration::ODriverEnumeration() throw()
		:m_pImpl(new ODriverEnumerationImpl)
	{
	}

	//--------------------------------------------------------------------
	ODriverEnumeration::~ODriverEnumeration() throw()
	{
		delete m_pImpl;
	}

	//--------------------------------------------------------------------
	ODriverEnumeration::const_iterator ODriverEnumeration::begin() const throw()
	{
		return m_pImpl->getDriverImplNames().begin();
	}

	//--------------------------------------------------------------------
	ODriverEnumeration::const_iterator ODriverEnumeration::end() const throw()
	{
		return m_pImpl->getDriverImplNames().end();
	}
//........................................................................
}	// namespace offapp
//........................................................................