/**************************************************************
 * 
 * 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_comphelper.hxx"

#include "comphelper/serviceinfohelper.hxx"
#include <stdarg.h>

// #####################################################################

namespace comphelper
{

/** returns an empty UString(). most times sufficient */
::rtl::OUString SAL_CALL ServiceInfoHelper::getImplementationName() throw( ::com::sun::star::uno::RuntimeException )
{
	return ::rtl::OUString();
}

/** the base implementation iterates over the service names from <code>getSupportedServiceNames</code> */
sal_Bool SAL_CALL ServiceInfoHelper::supportsService( const ::rtl::OUString& ServiceName ) throw(::com::sun::star::uno::RuntimeException)
{
	return supportsService( ServiceName, getSupportedServiceNames() );
}

sal_Bool SAL_CALL ServiceInfoHelper::supportsService( const ::rtl::OUString& ServiceName, const ::com::sun::star::uno::Sequence< ::rtl::OUString >& SupportedServices ) throw()
{
	const ::rtl::OUString * pArray = SupportedServices.getConstArray();
	for( sal_Int32 i = 0; i < SupportedServices.getLength(); i++ )
		if( pArray[i] == ServiceName )
			return sal_True;
	return sal_False;
}

/** the base implementation has no supported services */
::com::sun::star::uno::Sequence< ::rtl::OUString > ServiceInfoHelper::getSupportedServiceNames(void) throw( ::com::sun::star::uno::RuntimeException )
{
	::com::sun::star::uno::Sequence< ::rtl::OUString> aSeq(0);
	return aSeq;
}

/** this method concatenates the given sequences and returns the result
 */
::com::sun::star::uno::Sequence< ::rtl::OUString > ServiceInfoHelper::concatSequences( const ::com::sun::star::uno::Sequence< ::rtl::OUString >& rSeq1,
		const ::com::sun::star::uno::Sequence< ::rtl::OUString >& rSeq2 ) throw()
{
	const sal_Int32 nLen1 = rSeq1.getLength();
	const sal_Int32 nLen2 = rSeq2.getLength();

	::com::sun::star::uno::Sequence< ::rtl::OUString > aSeq( nLen1 + nLen2 );

	::rtl::OUString* pStrings = aSeq.getArray();

	sal_Int32 nIdx;
	const ::rtl::OUString* pStringSrc = rSeq1.getConstArray();
	for( nIdx = 0; nIdx < nLen1; nIdx++ )
		*pStrings++ = *pStringSrc++;

	pStringSrc = rSeq2.getConstArray();
	for( nIdx = 0; nIdx < nLen2; nIdx++ )
		*pStrings++ = *pStringSrc++;

	return aSeq;
}

/** this method adds a variable number of char pointer to a given Sequence
 */
void ServiceInfoHelper::addToSequence( ::com::sun::star::uno::Sequence< ::rtl::OUString >& rSeq, sal_uInt16 nServices, /* char * */ ... ) throw()
{
	sal_uInt32 nCount = rSeq.getLength();

	rSeq.realloc( nCount + nServices );
	rtl::OUString* pStrings = rSeq.getArray();

	va_list marker;
	va_start( marker, nServices );
	for( sal_uInt16 i = 0 ; i < nServices; i++ )
		pStrings[nCount++] = rtl::OUString::createFromAscii(va_arg( marker, char*));
	va_end( marker );
}

}