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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* 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 .
*/
#include "formulaparserpool.hxx"
#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/container/XContentEnumerationAccess.hpp>
#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/lang/XSingleComponentFactory.hpp>
#include <com/sun/star/sheet/XFilterFormulaParser.hpp>
#include <rtl/instance.hxx>
#include <comphelper/processfactory.hxx>
#include <sfx2/objsh.hxx>
#include "document.hxx"
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::container;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::sheet;
using namespace ::com::sun::star::uno;
namespace {
class ScParserFactoryMap
{
public:
explicit ScParserFactoryMap();
Reference< XFormulaParser > createFormulaParser(
const Reference< XComponent >& rxComponent,
const OUString& rNamespace );
private:
typedef std::unordered_map<
OUString, Reference< XSingleComponentFactory >,
OUStringHash, std::equal_to< OUString > > FactoryMap;
Reference< XComponentContext > mxContext; /// Global component context.
FactoryMap maFactories; /// All parser factories, mapped by formula namespace.
};
ScParserFactoryMap::ScParserFactoryMap() :
mxContext( ::comphelper::getProcessComponentContext() )
{
if( mxContext.is() ) try
{
// enumerate all implementations of the FormulaParser service
Reference< XContentEnumerationAccess > xFactoryEA( mxContext->getServiceManager(), UNO_QUERY_THROW );
Reference< XEnumeration > xEnum( xFactoryEA->createContentEnumeration( OUString( "com.sun.star.sheet.FilterFormulaParser" ) ), UNO_SET_THROW );
while( xEnum->hasMoreElements() ) try // single try/catch for every element
{
// create an instance of the formula parser implementation
Reference< XSingleComponentFactory > xCompFactory( xEnum->nextElement(), UNO_QUERY_THROW );
Reference< XFilterFormulaParser > xParser( xCompFactory->createInstanceWithContext( mxContext ), UNO_QUERY_THROW );
// store factory in the map
OUString aNamespace = xParser->getSupportedNamespace();
if( !aNamespace.isEmpty() )
maFactories[ aNamespace ] = xCompFactory;
}
catch( Exception& )
{
}
}
catch( Exception& )
{
}
}
Reference< XFormulaParser > ScParserFactoryMap::createFormulaParser(
const Reference< XComponent >& rxComponent, const OUString& rNamespace )
{
Reference< XFormulaParser > xParser;
FactoryMap::const_iterator aIt = maFactories.find( rNamespace );
if( aIt != maFactories.end() ) try
{
Sequence< Any > aArgs( 1 );
aArgs[ 0 ] <<= rxComponent;
xParser.set( aIt->second->createInstanceWithArgumentsAndContext( aArgs, mxContext ), UNO_QUERY_THROW );
}
catch( Exception& )
{
}
return xParser;
}
struct ScParserFactorySingleton : public ::rtl::Static< ScParserFactoryMap, ScParserFactorySingleton > {};
} // namespace
ScFormulaParserPool::ScFormulaParserPool( const ScDocument& rDoc ) :
mrDoc( rDoc )
{
}
ScFormulaParserPool::~ScFormulaParserPool()
{
}
bool ScFormulaParserPool::hasFormulaParser( const OUString& rNamespace )
{
return getFormulaParser( rNamespace ).is();
}
Reference< XFormulaParser > ScFormulaParserPool::getFormulaParser( const OUString& rNamespace )
{
// try to find an existing parser entry
ParserMap::iterator aIt = maParsers.find( rNamespace );
if( aIt != maParsers.end() )
return aIt->second;
// always create a new entry in the map (even if the following initialization fails)
Reference< XFormulaParser >& rxParser = maParsers[ rNamespace ];
// try to create a new parser object
if( SfxObjectShell* pDocShell = mrDoc.GetDocumentShell() ) try
{
Reference< XComponent > xComponent( pDocShell->GetModel(), UNO_QUERY_THROW );
ScParserFactoryMap& rFactoryMap = ScParserFactorySingleton::get();
rxParser = rFactoryMap.createFormulaParser( xComponent, rNamespace );
}
catch( Exception& )
{
}
return rxParser;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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