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 namespace {
  36
  37 class BSeqInputStream
  38     : public ::cppu::WeakImplHelper< io::XInputStream >
  39 {
  40     std::vector<sal_Int8> _seq;
  41     sal_Int32 _nPos;
  42
  43 public:
  44     explicit BSeqInputStream( std::vector<sal_Int8> const & rSeq )
  45         : _seq( rSeq )
  46         , _nPos( 0 )
  47         {}
  48
  49     // XInputStream
  50     virtual sal_Int32 SAL_CALL readBytes(
  51         Sequence< sal_Int8 > & rData, sal_Int32 nBytesToRead ) override;
  52     virtual sal_Int32 SAL_CALL readSomeBytes(
  53         Sequence< sal_Int8 > & rData, sal_Int32 nMaxBytesToRead ) override;
  54     virtual void SAL_CALL skipBytes(
  55         sal_Int32 nBytesToSkip ) override;
  56     virtual sal_Int32 SAL_CALL available() override;
  57     virtual void SAL_CALL closeInput() override;
  58 };
  59
  60 }
  61
  62 sal_Int32 BSeqInputStream::readBytes(
  63     Sequence< sal_Int8 > & rData, sal_Int32 nBytesToRead )
  64 {
  65     nBytesToRead = ((nBytesToRead > static_cast<sal_Int32>(_seq.size()) - _nPos)
  66                     ? _seq.size() - _nPos
  67                     : nBytesToRead);
  68
  69     if (rData.getLength() != nBytesToRead)
  70         rData.realloc( nBytesToRead );
  71     if (nBytesToRead != 0) {
  72         memcpy(rData.getArray(), &_seq[_nPos], nBytesToRead);
  73     }
  74     _nPos += nBytesToRead;
  75     return nBytesToRead;
  76 }
  77
  78 sal_Int32 BSeqInputStream::readSomeBytes(
  79     Sequence< sal_Int8 > & rData, sal_Int32 nMaxBytesToRead )
  80 {
  81     return readBytes( rData, nMaxBytesToRead );
  82 }
  83
  84 void BSeqInputStream::skipBytes(
  85     sal_Int32 /*nBytesToSkip*/ )
  86 {
  87 }
  88
  89 sal_Int32 BSeqInputStream::available()
  90 {
  91     return _seq.size() - _nPos;
  92 }
  93
  94 void BSeqInputStream::closeInput()
  95 {
  96 }
  97
  98 namespace {
  99
 100 class BSeqOutputStream
 101     : public ::cppu::WeakImplHelper< io::XOutputStream >
 102 {
 103     std::vector<sal_Int8> * _seq;
 104
 105 public:
 106     explicit BSeqOutputStream( std::vector<sal_Int8> * seq )
 107         : _seq( seq )
 108         {}
 109
 110     // XOutputStream
 111     virtual void SAL_CALL writeBytes(
 112         Sequence< sal_Int8 > const & rData ) override;
 113     virtual void SAL_CALL flush() override;
 114     virtual void SAL_CALL closeOutput() override;
 115 };
 116
 117 }
 118
 119 void BSeqOutputStream::writeBytes( Sequence< sal_Int8 > const & rData )
 120 {
 121     sal_Int32 nPos = _seq->size();
 122     _seq->resize( nPos + rData.getLength() );
 123     if (rData.getLength() != 0) {
 124         memcpy( _seq->data() + nPos,
 125                 rData.getConstArray(),
 126                 rData.getLength() );
 127     }
 128 }
 129 void BSeqOutputStream::flush()
 130 {
 131 }
 132
 133 void BSeqOutputStream::closeOutput()
 134 {
 135 }
 136
 137 Reference< io::XInputStream > createInputStream( std::vector<sal_Int8> const & rInData )
 138 {
 139     return new BSeqInputStream( rInData );
 140 }
 141
 142 Reference< io::XInputStream > createInputStream( const sal_Int8* pData, int len )
 143 {
 144     std::vector<sal_Int8> rInData(len);
 145     if (len != 0) {
 146         memcpy( rInData.data(), pData, len);
 147     }
 148     return new BSeqInputStream( rInData );
 149 }
 150
 151 Reference< io::XOutputStream > createOutputStream( std::vector<sal_Int8> * pOutData )
 152 {
 153     return new BSeqOutputStream( pOutData );
 154 }
 155
 156 }
 157
 158 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */