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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
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_sfx2.hxx"
#include <com/sun/star/ucb/XCommandEnvironment.hpp>
#include <com/sun/star/io/XOutputStream.hpp>


#include "xpackcreator.hxx"

#include <sot/stg.hxx>
#include <sot/storage.hxx>
#include <tools/stream.hxx>
#include <unotools/tempfile.hxx>
#include <unotools/ucbhelper.hxx>
#include <ucbhelper/content.hxx>
#include <ucbhelper/commandenvironment.hxx>

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

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

//-------------------------------------------------------------------------
::rtl::OUString SAL_CALL OPackageStructureCreator::impl_getStaticImplementationName()
{
    return ::rtl::OUString::createFromAscii("com.sun.star.comp.embed.PackageStructureCreator");
}

//-------------------------------------------------------------------------
uno::Reference< lang::XSingleServiceFactory > SAL_CALL OPackageStructureCreator::impl_createFactory(
			const uno::Reference< lang::XMultiServiceFactory >& xServiceManager )
{
	return ::cppu::createOneInstanceFactory( xServiceManager,
								OPackageStructureCreator::impl_getStaticImplementationName(),
								OPackageStructureCreator::impl_staticCreateSelfInstance,
								OPackageStructureCreator::impl_getStaticSupportedServiceNames() );
}

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


//-------------------------------------------------------------------------
void SAL_CALL OPackageStructureCreator::convertToPackage( const ::rtl::OUString& aFolderUrl,
														  const uno::Reference< io::XOutputStream >& xTargetStream )
		throw ( io::IOException,
				uno::RuntimeException )
{
	uno::Reference< ucb::XCommandEnvironment > xComEnv;

	if ( !xTargetStream.is() )
        throw io::IOException(); // TODO/LATER

	sal_Bool bSuccess = sal_False;
	::ucbhelper::Content aContent;
	if( ::ucbhelper::Content::create( aFolderUrl, xComEnv, aContent ) )
	{
		SvStream* pTempStream = NULL;

        ::rtl::OUString aTempURL = ::utl::TempFile().GetURL();
		try {
			if ( aContent.isFolder() )
			{
				UCBStorage* pUCBStorage = new UCBStorage( aContent,
												  		aFolderUrl,
												  		STREAM_READ,
												  		sal_False,
												  		sal_True );
				SotStorageRef aStorage = new SotStorage( pUCBStorage );

				if ( aTempURL.getLength() )
				{
            		pTempStream = new SvFileStream( aTempURL, STREAM_STD_READWRITE );
					SotStorageRef aTargetStorage = new SotStorage( sal_True, *pTempStream );
					aStorage->CopyTo( aTargetStorage );
					aTargetStorage->Commit();

					if ( aStorage->GetError() || aTargetStorage->GetError() || pTempStream->GetError() )
						throw io::IOException();

					aTargetStorage = NULL;
					aStorage = NULL;

					pTempStream->Seek( 0 );

					uno::Sequence< sal_Int8 > aSeq( 32000 );
					sal_uInt32 nRead = 0;
            		do {
						if ( aSeq.getLength() < 32000 )
							aSeq.realloc( 32000 );

                		nRead = pTempStream->Read( aSeq.getArray(), 32000 );
						if ( nRead < 32000 )
							aSeq.realloc( nRead );
                		xTargetStream->writeBytes( aSeq );
            		} while( !pTempStream->IsEof() && !pTempStream->GetError() && nRead );

					if ( pTempStream->GetError() )
						throw io::IOException();

					bSuccess = sal_True;
				}
			}
    	}
    	catch ( uno::RuntimeException& )
    	{
			if ( pTempStream )
				delete pTempStream;

			if ( aTempURL.getLength() )
				::utl::UCBContentHelper::Kill( aTempURL );

			throw;
    	}
    	catch ( io::IOException& )
		{
			if ( pTempStream )
				delete pTempStream;

			if ( aTempURL.getLength() )
				::utl::UCBContentHelper::Kill( aTempURL );

			throw;
		}
		catch ( uno::Exception& )
		{
		}

		if ( pTempStream )
			delete pTempStream;

		if ( aTempURL.getLength() )
			::utl::UCBContentHelper::Kill( aTempURL );
	}

	if ( !bSuccess )
        throw io::IOException(); // TODO/LATER: can't proceed with creation
}

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

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

	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 OPackageStructureCreator::getSupportedServiceNames()
	throw ( uno::RuntimeException )
{
	return impl_getStaticSupportedServiceNames();
}