1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
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18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 #include <rtl/memory.h>
25 #include <com/sun/star/ucb/InteractiveAugmentedIOException.hpp>
26 #include <ucbhelper/cancelcommandexecution.hxx>
27 #include <string.h>
28
29 #include "gio_inputstream.hxx"
30 #include "gio_content.hxx"
31
32 using namespace com::sun::star;
33
34 namespace gio
35 {
36
InputStream(GFileInputStream * pStream)37 InputStream::InputStream(GFileInputStream *pStream) : Seekable(G_SEEKABLE(pStream)), mpStream(pStream)
38 {
39 if (!mpStream)
40 throw io::NotConnectedException();
41 }
42
~InputStream(void)43 InputStream::~InputStream( void )
44 {
45 closeInput();
46 }
47
available()48 sal_Int32 SAL_CALL InputStream::available()
49 throw( io::NotConnectedException, io::IOException, uno::RuntimeException )
50 {
51 return 0;
52 }
53
closeInput()54 void SAL_CALL InputStream::closeInput()
55 throw( io::NotConnectedException, io::IOException, uno::RuntimeException )
56 {
57 if (mpStream)
58 g_input_stream_close(G_INPUT_STREAM(mpStream), NULL, NULL);
59 }
60
skipBytes(sal_Int32 nBytesToSkip)61 void SAL_CALL InputStream::skipBytes( sal_Int32 nBytesToSkip )
62 throw( io::NotConnectedException, io::BufferSizeExceededException,
63 io::IOException, uno::RuntimeException )
64 {
65 if (!mpStream)
66 throw io::NotConnectedException();
67
68 if (!g_seekable_can_seek(G_SEEKABLE(mpStream)))
69 throw io::IOException(rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Seek unsupported")),
70 static_cast< cppu::OWeakObject * >(this));
71
72 GError *pError=NULL;
73 if (!g_seekable_seek(G_SEEKABLE(mpStream), nBytesToSkip, G_SEEK_CUR, NULL, &pError))
74 convertToException(pError, static_cast< cppu::OWeakObject * >(this));
75 }
76
readBytes(uno::Sequence<sal_Int8> & aData,sal_Int32 nBytesToRead)77 sal_Int32 SAL_CALL InputStream::readBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
78 throw( io::NotConnectedException, io::BufferSizeExceededException,
79 io::IOException, uno::RuntimeException )
80 {
81 if (!mpStream)
82 throw io::NotConnectedException();
83
84 try
85 {
86 aData.realloc( nBytesToRead );
87 }
88 catch ( const uno::Exception &e )
89 {
90 throw io::BufferSizeExceededException();
91 }
92
93 gsize nBytesRead = 0;
94 GError *pError=NULL;
95 if (!g_input_stream_read_all(G_INPUT_STREAM(mpStream), aData.getArray(), nBytesToRead, &nBytesRead, NULL, &pError))
96 convertToException(pError, static_cast< cppu::OWeakObject * >(this));
97 aData.realloc(nBytesRead);
98 return nBytesRead;
99 }
100
readSomeBytes(uno::Sequence<sal_Int8> & aData,sal_Int32 nMaxBytesToRead)101 sal_Int32 SAL_CALL InputStream::readSomeBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead )
102 throw( io::NotConnectedException, io::BufferSizeExceededException,
103 io::IOException, uno::RuntimeException )
104 {
105 return readBytes(aData, nMaxBytesToRead);
106 }
107
queryInterface(const uno::Type & type)108 uno::Any InputStream::queryInterface( const uno::Type &type ) throw( uno::RuntimeException )
109 {
110 uno::Any aRet = ::cppu::queryInterface ( type,
111 static_cast< XInputStream * >( this ) );
112
113 return aRet.hasValue() ? aRet : Seekable::queryInterface( type );
114 }
115
116 }
117