Class HeaderBlock

    • Constructor Detail

      • HeaderBlock

        public HeaderBlock​(InputStream stream)
                    throws IOException
        create a new HeaderBlockReader from an InputStream
        Parameters:
        stream - the source InputStream
        Throws:
        IOException - on errors or bad data
      • HeaderBlock

        public HeaderBlock​(POIFSBigBlockSize bigBlockSize)
        Create a single instance initialized with default values
    • Method Detail

      • getPropertyStart

        public int getPropertyStart()
        get start of Property Table
        Returns:
        the index of the first block of the Property Table
      • setPropertyStart

        public void setPropertyStart​(int startBlock)
        Set start of Property Table
        Parameters:
        startBlock - the index of the first block of the Property Table
      • getSBATStart

        public int getSBATStart()
        Returns:
        start of small block (MiniFAT) allocation table
      • getSBATCount

        public int getSBATCount()
      • setSBATStart

        public void setSBATStart​(int startBlock)
        Set start of small block allocation table
        Parameters:
        startBlock - the index of the first big block of the small block allocation table
      • setSBATBlockCount

        public void setSBATBlockCount​(int count)
        Set count of SBAT blocks
        Parameters:
        count - the number of SBAT blocks
      • getBATCount

        public int getBATCount()
        Returns:
        number of BAT blocks
      • setBATCount

        public void setBATCount​(int count)
        Sets the number of BAT blocks that are used. This is the number used in both the BAT and XBAT.
      • getBATArray

        public int[] getBATArray()
        Returns the offsets to the first (up to) 109 BAT sectors. Any additional BAT sectors are held in the XBAT (DIFAT) sectors in a chain.
        Returns:
        BAT offset array
      • setBATArray

        public void setBATArray​(int[] bat_array)
        Sets the offsets of the first (up to) 109 BAT sectors.
      • getXBATCount

        public int getXBATCount()
        Returns:
        XBAT (DIFAT) count
      • setXBATCount

        public void setXBATCount​(int count)
        Sets the number of XBAT (DIFAT) blocks used
      • getXBATIndex

        public int getXBATIndex()
        Returns:
        XBAT (DIFAT) index
      • setXBATStart

        public void setXBATStart​(int startBlock)
        Sets the first XBAT (DIFAT) block location
      • getBigBlockSize

        public POIFSBigBlockSize getBigBlockSize()
        Returns:
        The Big Block size, normally 512 bytes, sometimes 4096 bytes
      • writeData

        public void writeData​(OutputStream stream)
                       throws IOException
        Write the block's data to an OutputStream
        Parameters:
        stream - the OutputStream to which the stored data should be written
        Throws:
        IOException - on problems writing to the specified stream