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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 <rtl/ustring.hxx>
#include <unotools/ucbstreamhelper.hxx>
#include <comphelper/processfactory.hxx>
#include <com/sun/star/ucb/CommandAbortedException.hpp>
#include <com/sun/star/ucb/UniversalContentBroker.hpp>
#include <com/sun/star/ucb/XCommandEnvironment.hpp>
#include <com/sun/star/ucb/InsertCommandArgument.hpp>
#include <com/sun/star/io/XActiveDataStreamer.hpp>
#include <ucbhelper/content.hxx>
#include <unotools/streamwrap.hxx>
#include <ucblockbytes.hxx>
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::io;
using namespace ::com::sun::star::ucb;
using namespace ::com::sun::star::task;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::beans;
namespace utl
{
static SvStream* lcl_CreateStream( const OUString& rFileName, StreamMode eOpenMode,
Reference < XInteractionHandler > xInteractionHandler,
UcbLockBytesHandler* pHandler, bool bEnsureFileExists )
{
SvStream* pStream = NULL;
Reference< XUniversalContentBroker > ucb(
UniversalContentBroker::create(
comphelper::getProcessComponentContext() ) );
UcbLockBytesRef xLockBytes;
if ( eOpenMode & StreamMode::WRITE )
{
bool bTruncate = bool( eOpenMode & StreamMode::TRUNC );
if ( bTruncate )
{
try
{
// truncate is implemented with deleting the original file
::ucbhelper::Content aCnt(
rFileName, Reference < XCommandEnvironment >(),
comphelper::getProcessComponentContext() );
aCnt.executeCommand( "delete", makeAny( true ) );
}
catch ( const CommandAbortedException& )
{
// couldn't truncate/delete
}
catch ( const ContentCreationException& )
{
}
catch ( const Exception& )
{
}
}
if ( bEnsureFileExists || bTruncate )
{
try
{
// make sure that the desired file exists before trying to open
SvMemoryStream aStream(0,0);
::utl::OInputStreamWrapper* pInput = new ::utl::OInputStreamWrapper( aStream );
Reference< XInputStream > xInput( pInput );
::ucbhelper::Content aContent(
rFileName, Reference < XCommandEnvironment >(),
comphelper::getProcessComponentContext() );
InsertCommandArgument aInsertArg;
aInsertArg.Data = xInput;
aInsertArg.ReplaceExisting = sal_False;
Any aCmdArg;
aCmdArg <<= aInsertArg;
aContent.executeCommand( "insert", aCmdArg );
}
// it is NOT an error when the stream already exists and no truncation was desired
catch ( const CommandAbortedException& )
{
// currently never an error is detected !
}
catch ( const ContentCreationException& )
{
}
catch ( const Exception& )
{
}
}
}
try
{
// create LockBytes using UCB
::ucbhelper::Content aContent(
rFileName, Reference < XCommandEnvironment >(),
comphelper::getProcessComponentContext() );
xLockBytes = UcbLockBytes::CreateLockBytes( aContent.get(), Sequence < PropertyValue >(),
eOpenMode, xInteractionHandler, pHandler );
if ( xLockBytes.Is() )
{
pStream = new SvStream( xLockBytes );
pStream->SetBufferSize( 4096 );
pStream->SetError( xLockBytes->GetError() );
}
}
catch ( const CommandAbortedException& )
{
}
catch ( const ContentCreationException& )
{
}
catch ( const Exception& )
{
}
return pStream;
}
SvStream* UcbStreamHelper::CreateStream( const OUString& rFileName, StreamMode eOpenMode,
UcbLockBytesHandler* pHandler )
{
return lcl_CreateStream( rFileName, eOpenMode, Reference < XInteractionHandler >(), pHandler, true /* bEnsureFileExists */ );
}
SvStream* UcbStreamHelper::CreateStream( const OUString& rFileName, StreamMode eOpenMode,
Reference < XInteractionHandler > xInteractionHandler,
UcbLockBytesHandler* pHandler )
{
return lcl_CreateStream( rFileName, eOpenMode, xInteractionHandler, pHandler, true /* bEnsureFileExists */ );
}
SvStream* UcbStreamHelper::CreateStream( const OUString& rFileName, StreamMode eOpenMode,
bool bFileExists,
UcbLockBytesHandler* pHandler )
{
return lcl_CreateStream( rFileName, eOpenMode, Reference < XInteractionHandler >(), pHandler, !bFileExists );
}
SvStream* UcbStreamHelper::CreateStream( Reference < XInputStream > xStream )
{
SvStream* pStream = NULL;
UcbLockBytesRef xLockBytes = UcbLockBytes::CreateInputLockBytes( xStream );
if ( xLockBytes.Is() )
{
pStream = new SvStream( xLockBytes );
pStream->SetBufferSize( 4096 );
pStream->SetError( xLockBytes->GetError() );
}
return pStream;
}
SvStream* UcbStreamHelper::CreateStream( Reference < XStream > xStream )
{
SvStream* pStream = NULL;
if ( xStream->getOutputStream().is() )
{
UcbLockBytesRef xLockBytes = UcbLockBytes::CreateLockBytes( xStream );
if ( xLockBytes.Is() )
{
pStream = new SvStream( xLockBytes );
pStream->SetBufferSize( 4096 );
pStream->SetError( xLockBytes->GetError() );
}
}
else
return CreateStream( xStream->getInputStream() );
return pStream;
}
SvStream* UcbStreamHelper::CreateStream( Reference < XInputStream > xStream, bool bCloseStream )
{
SvStream* pStream = NULL;
UcbLockBytesRef xLockBytes = UcbLockBytes::CreateInputLockBytes( xStream );
if ( xLockBytes.Is() )
{
if ( !bCloseStream )
xLockBytes->setDontClose_Impl();
pStream = new SvStream( xLockBytes );
pStream->SetBufferSize( 4096 );
pStream->SetError( xLockBytes->GetError() );
}
return pStream;
};
SvStream* UcbStreamHelper::CreateStream( Reference < XStream > xStream, bool bCloseStream )
{
SvStream* pStream = NULL;
if ( xStream->getOutputStream().is() )
{
UcbLockBytesRef xLockBytes = UcbLockBytes::CreateLockBytes( xStream );
if ( xLockBytes.Is() )
{
if ( !bCloseStream )
xLockBytes->setDontClose_Impl();
pStream = new SvStream( xLockBytes );
pStream->SetBufferSize( 4096 );
pStream->SetError( xLockBytes->GetError() );
}
}
else
return CreateStream( xStream->getInputStream(), bCloseStream );
return pStream;
};
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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