package/inc/ByteGrabber.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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   9  * This file incorporates work covered by the following license notice:
  10  *
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  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
  36 {
  37 protected:
  38     ::osl::Mutex m_aMutex;
  39
  40     css::uno::Reference < css::io::XInputStream > xStream;
  41     css::uno::Reference < css::io::XSeekable > xSeek;
  42     css::uno::Sequence < sal_Int8 > aSequence;
  43     const sal_Int8 *pSequence;
  44
  45 public:
  46     ByteGrabber (css::uno::Reference < css::io::XInputStream > const & xIstream);
  47     ~ByteGrabber();
  48
  49     void setInputStream (const css::uno::Reference < css::io::XInputStream >& xNewStream);
  50     // XInputStream
  51     /// @throws css::io::NotConnectedException
  52     /// @throws css::io::BufferSizeExceededException
  53     /// @throws css::io::IOException
  54     /// @throws css::uno::RuntimeException
  55     sal_Int32 SAL_CALL readBytes( css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead );
  56     // XSeekable
  57     /// @throws css::lang::IllegalArgumentException
  58     /// @throws css::io::IOException
  59     /// @throws css::uno::RuntimeException
  60     void SAL_CALL seek( sal_Int64 location );
  61     /// @throws css::io::IOException
  62     /// @throws css::uno::RuntimeException
  63     sal_Int64 SAL_CALL getPosition(  );
  64     /// @throws css::io::IOException
  65     /// @throws css::uno::RuntimeException
  66     sal_Int64 SAL_CALL getLength(  );
  67
  68     sal_uInt16 ReadUInt16();
  69     sal_uInt32 ReadUInt32();
  70     sal_Int16 ReadInt16()
  71     {
  72         return static_cast<sal_Int16>(ReadUInt16());
  73     }
  74     sal_Int32 ReadInt32()
  75     {
  76         return static_cast<sal_Int32>(ReadUInt32());
  77     }
  78 };
  79
  80 #endif
  81
  82 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */