package/source/xstor/oseekinstream.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/lang/DisposedException.hpp>
  21 #include <cppuhelper/typeprovider.hxx>
  22 #include <cppuhelper/queryinterface.hxx>
  23 #include <osl/diagnose.h>
  24 #include <sal/log.hxx>
  25
  26 #include "oseekinstream.hxx"
  27 #include "owriteablestream.hxx"
  28
  29 using namespace ::com::sun::star;
  30
  31 OInputSeekStream::OInputSeekStream( OWriteStream_Impl& pImpl,
  32                                     uno::Reference < io::XInputStream > const & xStream,
  33                                     const uno::Sequence< beans::PropertyValue >& aProps,
  34                                     sal_Int32 nStorageType )
  35     : OInputSeekStream_BASE(pImpl, xStream, aProps, nStorageType)
  36 {
  37     m_xSeekable.set( m_xStream, uno::UNO_QUERY );
  38     OSL_ENSURE( m_xSeekable.is(), "No seeking support!" );
  39 }
  40
  41 OInputSeekStream::OInputSeekStream( uno::Reference < io::XInputStream > const & xStream,
  42                                     const uno::Sequence< beans::PropertyValue >& aProps,
  43                                     sal_Int32 nStorageType )
  44     : OInputSeekStream_BASE(xStream, aProps, nStorageType)
  45 {
  46     m_xSeekable.set( m_xStream, uno::UNO_QUERY );
  47     OSL_ENSURE( m_xSeekable.is(), "No seeking support!" );
  48 }
  49
  50 OInputSeekStream::~OInputSeekStream()
  51 {
  52 }
  53
  54 void SAL_CALL OInputSeekStream::seek( sal_Int64 location )
  55 {
  56     ::osl::MutexGuard aGuard( m_xMutex->GetMutex() );
  57     if ( m_bDisposed )
  58     {
  59         SAL_INFO("package.xstor", "Disposed!");
  60         throw lang::DisposedException();
  61     }
  62
  63     if ( !m_xSeekable.is() )
  64     {
  65         SAL_INFO("package.xstor", "No seekable!");
  66         throw uno::RuntimeException();
  67     }
  68
  69     m_xSeekable->seek( location );
  70 }
  71
  72 sal_Int64 SAL_CALL OInputSeekStream::getPosition()
  73 {
  74     ::osl::MutexGuard aGuard( m_xMutex->GetMutex() );
  75     if ( m_bDisposed )
  76     {
  77         SAL_INFO("package.xstor", "Disposed!");
  78         throw lang::DisposedException();
  79     }
  80
  81     if ( !m_xSeekable.is() )
  82     {
  83         SAL_INFO("package.xstor", "No seekable!");
  84         throw uno::RuntimeException();
  85     }
  86
  87     return m_xSeekable->getPosition();
  88 }
  89
  90 sal_Int64 SAL_CALL OInputSeekStream::getLength()
  91 {
  92     ::osl::MutexGuard aGuard( m_xMutex->GetMutex() );
  93     if ( m_bDisposed )
  94     {
  95         SAL_INFO("package.xstor", "Disposed!");
  96         throw lang::DisposedException();
  97     }
  98
  99     if ( !m_xSeekable.is() )
 100     {
 101         SAL_INFO("package.xstor", "No seekable!");
 102         throw uno::RuntimeException();
 103     }
 104
 105     return m_xSeekable->getLength();
 106 }
 107
 108 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */