xref: /trunk/main/svl/source/fsstor/fsfactory.cxx (revision 40df464e)

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

#include "fsfactory.hxx"
#include "cppuhelper/factory.hxx"
#include <com/sun/star/ucb/XSimpleFileAccess.hpp>
#include <com/sun/star/embed/ElementModes.hpp>
#include <com/sun/star/beans/PropertyValue.hpp>
#include <com/sun/star/io/XSeekable.hpp>


#include <ucbhelper/fileidentifierconverter.hxx>
#include <ucbhelper/contentbroker.hxx>
#include <ucbhelper/content.hxx>

#include <unotools/tempfile.hxx>
#include <unotools/ucbhelper.hxx>

#include "fsstorage.hxx"


using namespace ::com::sun::star;

//-------------------------------------------------------------------------
uno::Sequence< ::rtl::OUString > SAL_CALL FSStorageFactory::impl_staticGetSupportedServiceNames()
{
    uno::Sequence< ::rtl::OUString > aRet(2);
    aRet[0] = ::rtl::OUString::createFromAscii("com.sun.star.embed.FileSystemStorageFactory");
    aRet[1] = ::rtl::OUString::createFromAscii("com.sun.star.comp.embed.FileSystemStorageFactory");
    return aRet;
}

//-------------------------------------------------------------------------
::rtl::OUString SAL_CALL FSStorageFactory::impl_staticGetImplementationName()
{
    return ::rtl::OUString::createFromAscii("com.sun.star.comp.embed.FileSystemStorageFactory");
}

//-------------------------------------------------------------------------
uno::Reference< uno::XInterface > SAL_CALL FSStorageFactory::impl_staticCreateSelfInstance(
			const uno::Reference< lang::XMultiServiceFactory >& xServiceManager )
{
	return uno::Reference< uno::XInterface >( *new FSStorageFactory( xServiceManager ) );
}

//-------------------------------------------------------------------------
uno::Reference< uno::XInterface > SAL_CALL FSStorageFactory::createInstance()
	throw ( uno::Exception,
			uno::RuntimeException )
{
	::rtl::OUString aTempURL;

	aTempURL = ::utl::TempFile( NULL, sal_True ).GetURL();

	if ( !aTempURL.getLength() )
		throw uno::RuntimeException(); // TODO: can not create tempfile

	::ucbhelper::Content aResultContent(
        aTempURL, uno::Reference< ucb::XCommandEnvironment >() );

	return uno::Reference< uno::XInterface >(
        static_cast< OWeakObject* >(
            new FSStorage(	aResultContent,
                            embed::ElementModes::READWRITE,
                            uno::Sequence< beans::PropertyValue >(),
                            m_xFactory ) ),
        uno::UNO_QUERY );
}

//-------------------------------------------------------------------------
uno::Reference< uno::XInterface > SAL_CALL FSStorageFactory::createInstanceWithArguments(
			const uno::Sequence< uno::Any >& aArguments )
	throw ( uno::Exception,
			uno::RuntimeException )
{
	// The request for storage can be done with up to three arguments

	// The first argument specifies a source for the storage
	// it must be URL.
	// The second value is a mode the storage should be open in.
	// And the third value is a media descriptor.

	sal_Int32 nArgNum = aArguments.getLength();
	OSL_ENSURE( nArgNum < 4, "Wrong parameter number" );

	if ( !nArgNum )
		return createInstance();

	// first try to retrieve storage open mode if any
	// by default the storage will be open in readonly mode
	sal_Int32 nStorageMode = embed::ElementModes::READ;
	if ( nArgNum >= 2 )
	{
		if( !( aArguments[1] >>= nStorageMode ) )
		{
			OSL_ENSURE( sal_False, "Wrong second argument!\n" );
			throw uno::Exception(); // TODO: Illegal argument
		}
		// it's allways possible to read written storage in this implementation
		nStorageMode |= embed::ElementModes::READ;
	}

	// retrieve storage source URL
	::rtl::OUString aURL;

	if ( aArguments[0] >>= aURL )
	{
		if ( !aURL.getLength() )
		{
			OSL_ENSURE( sal_False, "Empty URL is provided!\n" );
			throw uno::Exception(); // TODO: illegal argument
		}
	}
	else
	{
		OSL_ENSURE( sal_False, "Wrong first argument!\n" );
		throw uno::Exception(); // TODO: Illegal argument
	}

	// retrieve mediadescriptor and set storage properties
	uno::Sequence< beans::PropertyValue > aDescr;
	uno::Sequence< beans::PropertyValue > aPropsToSet;

	if ( nArgNum >= 3 )
	{
		if( aArguments[2] >>= aDescr )
		{
			aPropsToSet.realloc(1);
			aPropsToSet[0].Name = ::rtl::OUString::createFromAscii( "URL" );
			aPropsToSet[0].Value <<= aURL;

			for ( sal_Int32 nInd = 0, nNumArgs = 1; nInd < aDescr.getLength(); nInd++ )
			{
				if ( aDescr[nInd].Name.equalsAscii( "InteractionHandler" ) )
				{
					aPropsToSet.realloc( ++nNumArgs );
					aPropsToSet[nNumArgs-1].Name = aDescr[nInd].Name;
					aPropsToSet[nNumArgs-1].Value = aDescr[nInd].Value;
					break;
				}
				else
					OSL_ENSURE( sal_False, "Unacceptable property, will be ignored!\n" );
			}
		}
		else
		{
			OSL_ENSURE( sal_False, "Wrong third argument!\n" );
			throw uno::Exception(); // TODO: Illegal argument
		}
	}

	// allow to use other ucp's
	// if ( !isLocalNotFile_Impl( aURL ) )
	if ( aURL.equalsIgnoreAsciiCaseAsciiL( "vnd.sun.star.pkg", 16 )
	  || aURL.equalsIgnoreAsciiCaseAsciiL( "vnd.sun.star.zip", 16 )
	  || ::utl::UCBContentHelper::IsDocument( aURL ) )
	{
		OSL_ENSURE( sal_False, "File system storages can be based only on file URLs!\n" ); // ???
		throw uno::Exception(); // TODO: illegal argument
	}

	if ( ( nStorageMode & embed::ElementModes::WRITE ) && !( nStorageMode & embed::ElementModes::NOCREATE ) )
		FSStorage::MakeFolderNoUI( aURL, sal_False );
	else if ( !::utl::UCBContentHelper::IsFolder( aURL ) )
		throw io::IOException(); // there is no such folder

	::ucbhelper::Content aResultContent(
        aURL, uno::Reference< ucb::XCommandEnvironment >() );

	// create storage based on source
	return uno::Reference< uno::XInterface >(
        static_cast< OWeakObject* >( new FSStorage( aResultContent,
                                                    nStorageMode,
                                                    aPropsToSet,
                                                    m_xFactory ) ),
        uno::UNO_QUERY );
}

//-------------------------------------------------------------------------
::rtl::OUString SAL_CALL FSStorageFactory::getImplementationName()
	throw ( uno::RuntimeException )
{
	return impl_staticGetImplementationName();
}

//-------------------------------------------------------------------------
sal_Bool SAL_CALL FSStorageFactory::supportsService( const ::rtl::OUString& ServiceName )
	throw ( uno::RuntimeException )
{
	uno::Sequence< ::rtl::OUString > aSeq = impl_staticGetSupportedServiceNames();

	for ( sal_Int32 nInd = 0; nInd < aSeq.getLength(); nInd++ )
    	if ( ServiceName.compareTo( aSeq[nInd] ) == 0 )
        	return sal_True;

	return sal_False;
}

//-------------------------------------------------------------------------
uno::Sequence< ::rtl::OUString > SAL_CALL FSStorageFactory::getSupportedServiceNames()
	throw ( uno::RuntimeException )
{
	return impl_staticGetSupportedServiceNames();
}

//-------------------------------------------------------------------------

extern "C"
{
SAL_DLLPUBLIC_EXPORT void SAL_CALL component_getImplementationEnvironment (
	const sal_Char ** ppEnvTypeName, uno_Environment ** /* ppEnv */)
{
	*ppEnvTypeName = CPPU_CURRENT_LANGUAGE_BINDING_NAME;
}

SAL_DLLPUBLIC_EXPORT void * SAL_CALL component_getFactory (
	const sal_Char * pImplementationName, void * pServiceManager, void * /* pRegistryKey */)
{
	void * pResult = 0;
	if (pServiceManager)
	{
		uno::Reference< lang::XSingleServiceFactory > xFactory;
		if (FSStorageFactory::impl_staticGetImplementationName().compareToAscii (pImplementationName) == 0)
		{
			xFactory = cppu::createOneInstanceFactory (
				reinterpret_cast< lang::XMultiServiceFactory* >(pServiceManager),
				FSStorageFactory::impl_staticGetImplementationName(),
				FSStorageFactory::impl_staticCreateSelfInstance,
				FSStorageFactory::impl_staticGetSupportedServiceNames() );
		}
		if (xFactory.is())
		{
			xFactory->acquire();
			pResult = xFactory.get();
		}
	}
	return pResult;
}

} // extern "C"