205 lines
6.3 KiB
C++
205 lines
6.3 KiB
C++
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: xmxtrct.cxx,v $
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*
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* $Revision: 1.7 $
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*
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* last change: $Author: ihi $ $Date: 2008-01-14 15:06:10 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_extensions.hxx"
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#include "xmxtrct.hxx"
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#include <rtl/memory.h>
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#include <tools/zcodec.hxx>
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#include <unotools/streamhelper.hxx>
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#include <sot/storage.hxx>
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// ----------------
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// - XMXLockBytes -
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// ----------------
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class XMXLockBytes : public SvLockBytes
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{
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REF( NMSP_IO::XInputStream ) mxIStm;
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SEQ( sal_Int8 ) maSeq;
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XMXLockBytes();
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public:
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XMXLockBytes( const REF( NMSP_IO::XInputStream )& rxIStm );
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virtual ~XMXLockBytes();
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virtual ErrCode ReadAt( sal_Size nPos, void* pBuffer, sal_Size nCount, sal_Size* pRead ) const;
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virtual ErrCode WriteAt( sal_Size nPos, const void* pBuffer, sal_Size nCount, sal_Size* pWritten );
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virtual ErrCode Flush() const;
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virtual ErrCode SetSize( sal_Size nSize );
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virtual ErrCode Stat( SvLockBytesStat*, SvLockBytesStatFlag ) const;
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};
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// ------------------------------------------------------------------------
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XMXLockBytes::XMXLockBytes( const REF( NMSP_IO::XInputStream )& rxIStm ) :
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mxIStm( rxIStm )
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{
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if( mxIStm.is() )
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{
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const sal_uInt32 nBytesToRead = 65535;
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sal_uInt32 nRead;
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do
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{
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SEQ( sal_Int8 ) aReadSeq;
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nRead = mxIStm->readSomeBytes( aReadSeq, nBytesToRead );
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if( nRead )
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{
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const sal_uInt32 nOldLength = maSeq.getLength();
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maSeq.realloc( nOldLength + nRead );
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rtl_copyMemory( maSeq.getArray() + nOldLength, aReadSeq.getConstArray(), aReadSeq.getLength() );
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}
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}
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while( nBytesToRead == nRead );
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}
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}
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// ------------------------------------------------------------------------
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XMXLockBytes::~XMXLockBytes()
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{
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}
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// ------------------------------------------------------------------------
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ErrCode XMXLockBytes::ReadAt( sal_Size nPos, void* pBuffer, sal_Size nCount, sal_Size* pRead ) const
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{
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const sal_Size nSeqLen = maSeq.getLength();
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ErrCode nErr = ERRCODE_NONE;
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if( nPos < nSeqLen )
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{
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if( ( nPos + nCount ) > nSeqLen )
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nCount = nSeqLen - nPos;
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rtl_copyMemory( pBuffer, maSeq.getConstArray() + nPos, nCount );
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*pRead = nCount;
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}
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else
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*pRead = 0UL;
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return nErr;
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}
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// ------------------------------------------------------------------------
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ErrCode XMXLockBytes::WriteAt( sal_Size /*nPos*/, const void* /*pBuffer*/, sal_Size /*nCount*/, sal_Size* /*pWritten*/ )
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{
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return ERRCODE_IO_CANTWRITE;
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}
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// ------------------------------------------------------------------------
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ErrCode XMXLockBytes::Flush() const
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{
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return ERRCODE_NONE;
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}
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// ------------------------------------------------------------------------
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ErrCode XMXLockBytes::SetSize( sal_Size /*nSize*/ )
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{
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return ERRCODE_IO_CANTWRITE;
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}
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// ------------------------------------------------------------------------
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ErrCode XMXLockBytes::Stat( SvLockBytesStat* pStat, SvLockBytesStatFlag /*eFlag*/ ) const
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{
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pStat->nSize = maSeq.getLength();
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return ERRCODE_NONE;
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}
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// ----------------
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// - XMLExtractor -
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// ----------------
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XMLExtractor::XMLExtractor( const REF( NMSP_LANG::XMultiServiceFactory )& rxMgr ) :
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mxFact( rxMgr )
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{
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}
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// -----------------------------------------------------------------------------
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XMLExtractor::~XMLExtractor()
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{
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}
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// -----------------------------------------------------------------------------
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REF( NMSP_IO::XInputStream ) SAL_CALL XMLExtractor::extract( const REF( NMSP_IO::XInputStream )& rxIStm ) throw( NMSP_UNO::RuntimeException )
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{
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REF( NMSP_IO::XInputStream ) xRet;
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if( rxIStm.is() )
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{
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SvStream aIStm( new XMXLockBytes( rxIStm ) );
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SvStorageRef aStorage( new SvStorage( aIStm ) );
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String aStmName;
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const String aFormat1( String::CreateFromAscii( "XMLFormat" ) );
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const String aFormat2( String::CreateFromAscii( "XMLFormat2" ) );
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if( aStorage->IsContained( aFormat2 ) )
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aStmName = aFormat2;
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else if( aStorage->IsContained( aFormat1 ) )
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aStmName = aFormat1;
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if( !aStorage->GetError() && aStmName.Len() && aStorage->IsStream( aStmName ) )
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{
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SvStorageStreamRef xStream( aStorage->OpenSotStream( aStmName ) );
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if( xStream.Is() )
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{
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SvMemoryStream* pMemStm = new SvMemoryStream( 65535, 65535 );
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ZCodec aCodec;
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aCodec.BeginCompression( ZCODEC_BEST_COMPRESSION );
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aCodec.Decompress( *xStream, *pMemStm );
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aCodec.EndCompression();
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xRet = new ::utl::OInputStreamHelper( new SvLockBytes( pMemStm, TRUE ), 65535 );
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}
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}
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}
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return xRet;
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}
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