ucb/source/ucp/gio/gio_inputstream.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 <com/sun/star/ucb/InteractiveAugmentedIOException.hpp>
  21 #include <ucbhelper/cancelcommandexecution.hxx>
  22 #include <string.h>
  23
  24 #include "gio_inputstream.hxx"
  25 #include "gio_content.hxx"
  26
  27 using namespace com::sun::star;
  28
  29 namespace gio
  30 {
  31
  32 InputStream::InputStream(GFileInputStream *pStream) : Seekable(G_SEEKABLE(pStream)), mpStream(pStream)
  33 {
  34     if (!mpStream)
  35         throw io::NotConnectedException();
  36 }
  37
  38 InputStream::~InputStream( void )
  39 {
  40     closeInput();
  41 }
  42
  43 sal_Int32 SAL_CALL InputStream::available()
  44     throw( io::NotConnectedException, io::IOException, uno::RuntimeException )
  45 {
  46     return 0;
  47 }
  48
  49 void SAL_CALL InputStream::closeInput()
  50     throw( io::NotConnectedException, io::IOException, uno::RuntimeException )
  51 {
  52     if (mpStream)
  53         g_input_stream_close(G_INPUT_STREAM(mpStream), NULL, NULL);
  54 }
  55
  56 void SAL_CALL InputStream::skipBytes( sal_Int32 nBytesToSkip )
  57     throw( io::NotConnectedException, io::BufferSizeExceededException,
  58       io::IOException, uno::RuntimeException )
  59 {
  60     if (!mpStream)
  61         throw io::NotConnectedException();
  62
  63     if (!g_seekable_can_seek(G_SEEKABLE(mpStream)))
  64         throw io::IOException(OUString("Seek unsupported"),
  65             static_cast< cppu::OWeakObject * >(this));
  66
  67     GError *pError=NULL;
  68     if (!g_seekable_seek(G_SEEKABLE(mpStream), nBytesToSkip, G_SEEK_CUR, NULL, &pError))
  69         convertToException(pError, static_cast< cppu::OWeakObject * >(this));
  70 }
  71
  72 sal_Int32 SAL_CALL InputStream::readBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
  73     throw( io::NotConnectedException, io::BufferSizeExceededException,
  74       io::IOException, uno::RuntimeException )
  75 {
  76     if (!mpStream)
  77         throw io::NotConnectedException();
  78
  79     try
  80     {
  81         aData.realloc( nBytesToRead );
  82     }
  83     catch ( const uno::Exception &e )
  84     {
  85         throw io::BufferSizeExceededException();
  86     }
  87
  88     gsize nBytesRead = 0;
  89     GError *pError=NULL;
  90     if (!g_input_stream_read_all(G_INPUT_STREAM(mpStream), aData.getArray(), nBytesToRead, &nBytesRead, NULL, &pError))
  91         convertToException(pError, static_cast< cppu::OWeakObject * >(this));
  92     aData.realloc(nBytesRead);
  93     return nBytesRead;
  94 }
  95
  96 sal_Int32 SAL_CALL InputStream::readSomeBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead )
  97     throw( io::NotConnectedException, io::BufferSizeExceededException,
  98       io::IOException, uno::RuntimeException )
  99 {
 100     return readBytes(aData, nMaxBytesToRead);
 101 }
 102
 103 uno::Any InputStream::queryInterface( const uno::Type &type ) throw( uno::RuntimeException )
 104 {
 105     uno::Any aRet = ::cppu::queryInterface ( type,
 106         static_cast< XInputStream * >( this ) );
 107
 108     return aRet.hasValue() ? aRet : Seekable::queryInterface( type );
 109 }
 110
 111 }
 112
 113 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */