package/inc/ByteGrabber.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   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 #ifndef INCLUDED_PACKAGE_INC_BYTEGRABBER_HXX
  20 #define INCLUDED_PACKAGE_INC_BYTEGRABBER_HXX
  21
  22 #include <com/sun/star/uno/Sequence.h>
  23 #include <com/sun/star/uno/Reference.h>
  24 #include <com/sun/star/io/BufferSizeExceededException.hpp>
  25 #include <com/sun/star/io/IOException.hpp>
  26 #include <com/sun/star/io/NotConnectedException.hpp>
  27 #include <com/sun/star/uno/RuntimeException.hpp>
  28 #include <com/sun/star/lang/IllegalArgumentException.hpp>
  29
  30 #include <osl/mutex.hxx>
  31
  32 namespace com { namespace sun { namespace star {
  33     namespace io { class XSeekable; class XInputStream; }
  34 } } }
  35 class ByteGrabber final
  36 {
  37     ::osl::Mutex m_aMutex;
  38
  39     css::uno::Reference < css::io::XInputStream > xStream;
  40     css::uno::Reference < css::io::XSeekable > xSeek;
  41     css::uno::Sequence < sal_Int8 > aSequence;
  42     const sal_Int8 *pSequence;
  43
  44 public:
  45     ByteGrabber (css::uno::Reference < css::io::XInputStream > const & xIstream);
  46     ~ByteGrabber();
  47
  48     void setInputStream (const css::uno::Reference < css::io::XInputStream >& xNewStream);
  49     // XInputStream
  50     /// @throws css::io::NotConnectedException
  51     /// @throws css::io::BufferSizeExceededException
  52     /// @throws css::io::IOException
  53     /// @throws css::uno::RuntimeException
  54     sal_Int32 readBytes( css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead );
  55     // XSeekable
  56     /// @throws css::lang::IllegalArgumentException
  57     /// @throws css::io::IOException
  58     /// @throws css::uno::RuntimeException
  59     void seek( sal_Int64 location );
  60     /// @throws css::io::IOException
  61     /// @throws css::uno::RuntimeException
  62     sal_Int64 getPosition(  );
  63     /// @throws css::io::IOException
  64     /// @throws css::uno::RuntimeException
  65     sal_Int64 getLength(  );
  66
  67     sal_uInt16 ReadUInt16();
  68     sal_uInt32 ReadUInt32();
  69     sal_Int16 ReadInt16()
  70     {
  71         return static_cast<sal_Int16>(ReadUInt16());
  72     }
  73     sal_Int32 ReadInt32()
  74     {
  75         return static_cast<sal_Int32>(ReadUInt32());
  76     }
  77 };
  78
  79 #endif
  80
  81 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */