xmlscript/source/xml_helper/xml_byteseq.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <string.h>
  21
  22 #include <cppuhelper/implbase.hxx>
  23 #include <xmlscript/xml_helper.hxx>
  24 #include <com/sun/star/io/XInputStream.hpp>
  25 #include <com/sun/star/io/XOutputStream.hpp>
  26
  27 using namespace osl;
  28 using namespace com::sun::star;
  29 using namespace com::sun::star::uno;
  30
  31
  32 namespace xmlscript
  33 {
  34
  35 class BSeqInputStream
  36     : public ::cppu::WeakImplHelper< io::XInputStream >
  37 {
  38     std::vector<sal_Int8> _seq;
  39     sal_Int32 _nPos;
  40
  41 public:
  42     explicit BSeqInputStream( std::vector<sal_Int8> const & rSeq )
  43         : _seq( rSeq )
  44         , _nPos( 0 )
  45         {}
  46
  47     // XInputStream
  48     virtual sal_Int32 SAL_CALL readBytes(
  49         Sequence< sal_Int8 > & rData, sal_Int32 nBytesToRead ) override;
  50     virtual sal_Int32 SAL_CALL readSomeBytes(
  51         Sequence< sal_Int8 > & rData, sal_Int32 nMaxBytesToRead ) override;
  52     virtual void SAL_CALL skipBytes(
  53         sal_Int32 nBytesToSkip ) override;
  54     virtual sal_Int32 SAL_CALL available() override;
  55     virtual void SAL_CALL closeInput() override;
  56 };
  57
  58 sal_Int32 BSeqInputStream::readBytes(
  59     Sequence< sal_Int8 > & rData, sal_Int32 nBytesToRead )
  60 {
  61     nBytesToRead = ((nBytesToRead > static_cast<sal_Int32>(_seq.size()) - _nPos)
  62                     ? _seq.size() - _nPos
  63                     : nBytesToRead);
  64
  65     if (rData.getLength() != nBytesToRead)
  66         rData.realloc( nBytesToRead );
  67     if (nBytesToRead != 0) {
  68         memcpy(rData.getArray(), &_seq[_nPos], nBytesToRead);
  69     }
  70     _nPos += nBytesToRead;
  71     return nBytesToRead;
  72 }
  73
  74 sal_Int32 BSeqInputStream::readSomeBytes(
  75     Sequence< sal_Int8 > & rData, sal_Int32 nMaxBytesToRead )
  76 {
  77     return readBytes( rData, nMaxBytesToRead );
  78 }
  79
  80 void BSeqInputStream::skipBytes(
  81     sal_Int32 /*nBytesToSkip*/ )
  82 {
  83 }
  84
  85 sal_Int32 BSeqInputStream::available()
  86 {
  87     return _seq.size() - _nPos;
  88 }
  89
  90 void BSeqInputStream::closeInput()
  91 {
  92 }
  93
  94 class BSeqOutputStream
  95     : public ::cppu::WeakImplHelper< io::XOutputStream >
  96 {
  97     std::vector<sal_Int8> * _seq;
  98
  99 public:
 100     explicit BSeqOutputStream( std::vector<sal_Int8> * seq )
 101         : _seq( seq )
 102         {}
 103
 104     // XOutputStream
 105     virtual void SAL_CALL writeBytes(
 106         Sequence< sal_Int8 > const & rData ) override;
 107     virtual void SAL_CALL flush() override;
 108     virtual void SAL_CALL closeOutput() override;
 109 };
 110
 111 void BSeqOutputStream::writeBytes( Sequence< sal_Int8 > const & rData )
 112 {
 113     sal_Int32 nPos = _seq->size();
 114     _seq->resize( nPos + rData.getLength() );
 115     if (rData.getLength() != 0) {
 116         memcpy( _seq->data() + nPos,
 117                 rData.getConstArray(),
 118                 rData.getLength() );
 119     }
 120 }
 121 void BSeqOutputStream::flush()
 122 {
 123 }
 124
 125 void BSeqOutputStream::closeOutput()
 126 {
 127 }
 128
 129 Reference< io::XInputStream > createInputStream( std::vector<sal_Int8> const & rInData )
 130 {
 131     return new BSeqInputStream( rInData );
 132 }
 133
 134 Reference< io::XInputStream > createInputStream( const sal_Int8* pData, int len )
 135 {
 136     std::vector<sal_Int8> rInData(len);
 137     if (len != 0) {
 138         memcpy( rInData.data(), pData, len);
 139     }
 140     return new BSeqInputStream( rInData );
 141 }
 142
 143 Reference< io::XOutputStream > createOutputStream( std::vector<sal_Int8> * pOutData )
 144 {
 145     return new BSeqOutputStream( pOutData );
 146 }
 147
 148 }
 149
 150 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */