1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
/* -*- 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/.
*/
#include <sal/config.h>
#include <com/sun/star/io/IOException.hpp>
#include <com/sun/star/lang/IllegalArgumentException.hpp>
#include <sal/log.hxx>
#include <cppuhelper/queryinterface.hxx>
#include <utility>
#include "std_inputstream.hxx"
using namespace com::sun::star;
namespace cmis
{
StdInputStream::StdInputStream( boost::shared_ptr< std::istream > pStream ) :
m_pStream(std::move( pStream )),
m_nLength( 0 )
{
if (m_pStream)
{
auto nInitPos = m_pStream->tellg( );
m_pStream->seekg( 0, std::ios_base::end );
auto nEndPos = m_pStream->tellg( );
m_pStream->seekg( nInitPos, std::ios_base::beg );
m_nLength = sal_Int64( nEndPos - nInitPos );
}
}
StdInputStream::~StdInputStream()
{
}
uno::Any SAL_CALL StdInputStream::queryInterface( const uno::Type& rType )
{
uno::Any aRet = ::cppu::queryInterface( rType,
static_cast< XInputStream* >( this ),
static_cast< XSeekable* >( this ) );
return aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType );
}
void SAL_CALL StdInputStream::acquire( ) noexcept
{
OWeakObject::acquire();
}
void SAL_CALL StdInputStream::release( ) noexcept
{
OWeakObject::release();
}
sal_Int32 SAL_CALL StdInputStream::readBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
{
std::scoped_lock aGuard( m_aMutex );
if ( 0 <= nBytesToRead && aData.getLength() < nBytesToRead )
aData.realloc( nBytesToRead );
if (!m_pStream)
throw io::IOException( );
sal_Int32 nRead = 0;
try
{
m_pStream->read( reinterpret_cast< char* >( aData.getArray( ) ), nBytesToRead );
nRead = m_pStream->gcount();
}
catch ( const std::ios_base::failure& e )
{
SAL_INFO( "ucb.ucp.cmis", "StdInputStream::readBytes() error: " << e.what() );
throw io::IOException( );
}
return nRead;
}
sal_Int32 SAL_CALL StdInputStream::readSomeBytes( uno::Sequence< sal_Int8 >& aData,
sal_Int32 nMaxBytesToRead )
{
std::scoped_lock aGuard( m_aMutex );
if ( 0 <= nMaxBytesToRead && aData.getLength() < nMaxBytesToRead )
aData.realloc( nMaxBytesToRead );
if (!m_pStream)
throw io::IOException( );
sal_Int32 nRead = 0;
try
{
nRead = m_pStream->readsome( reinterpret_cast< char* >( aData.getArray( ) ), nMaxBytesToRead );
}
catch ( const std::ios_base::failure& e )
{
SAL_INFO( "ucb.ucp.cmis", "StdInputStream::readBytes() error: " << e.what() );
throw io::IOException( );
}
return nRead;
}
void SAL_CALL StdInputStream::skipBytes( sal_Int32 nBytesToSkip )
{
std::scoped_lock aGuard( m_aMutex );
if (!m_pStream)
throw io::IOException( );
try
{
m_pStream->seekg( nBytesToSkip, std::ios_base::cur );
}
catch ( const std::ios_base::failure& e )
{
SAL_INFO( "ucb.ucp.cmis", "StdInputStream::readBytes() error: " << e.what() );
throw io::IOException( );
}
}
sal_Int32 SAL_CALL StdInputStream::available( )
{
return std::min<sal_Int64>( SAL_MAX_INT32, m_nLength - getPosition() );
}
void SAL_CALL StdInputStream::closeInput( )
{
// No need to implement this for an istream
}
void SAL_CALL StdInputStream::seek( sal_Int64 location )
{
std::scoped_lock aGuard( m_aMutex );
if ( location < 0 || location > m_nLength )
throw lang::IllegalArgumentException(
"Location can't be negative or greater than the length",
getXWeak(), 0 );
if (!m_pStream)
throw io::IOException( );
try
{
m_pStream->clear( ); // may be needed to rewind the stream
m_pStream->seekg( location, std::ios_base::beg );
}
catch ( const std::ios_base::failure& e )
{
SAL_INFO( "ucb.ucp.cmis", "StdInputStream::readBytes() error: " << e.what() );
throw io::IOException( );
}
}
sal_Int64 SAL_CALL StdInputStream::getPosition( )
{
std::scoped_lock aGuard( m_aMutex );
if (!m_pStream)
throw io::IOException( );
sal_Int64 nPos = m_pStream->tellg( );
if ( -1 == nPos )
throw io::IOException( );
return nPos;
}
sal_Int64 SAL_CALL StdInputStream::getLength( )
{
return m_nLength;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
