Examples of BlockAllocationTableWriter

org.apache.poi.poifs.storage.BlockAllocationTableWriter
This class manages and creates the Block Allocation Table, which is basically a set of linked lists of block indices.
Each block of the filesystem has an index. The first block, the header, is skipped; the first block after the header is index 0, the next is index 1, and so on.
A block's index is also its index into the Block Allocation Table. The entry that it finds in the Block Allocation Table is the index of the next block in the linked list of blocks making up a file, or it is set to -2: end of list. @author Marc Johnson (mjohnson at apache dot org)

Examples of org.apache.poi.poifs.storage.BlockAllocationTableWriter

        // create the small block store, and the SBAT
        SmallBlockTableWriter      sbtw       =
            new SmallBlockTableWriter(bigBlockSize, _documents, _property_table.getRoot());


        // create the block allocation table
        BlockAllocationTableWriter bat        =
            new BlockAllocationTableWriter(bigBlockSize);


        // create a list of BATManaged objects: the documents plus the
        // property table and the small block table
        List bm_objects = new ArrayList();


        bm_objects.addAll(_documents);
        bm_objects.add(_property_table);
        bm_objects.add(sbtw);
        bm_objects.add(sbtw.getSBAT());


        // walk the list, allocating space for each and assigning each
        // a starting block number
        Iterator iter = bm_objects.iterator();


        while (iter.hasNext())
        {
            BATManaged bmo         = ( BATManaged ) iter.next();
            int        block_count = bmo.countBlocks();


            if (block_count != 0)
            {
                bmo.setStartBlock(bat.allocateSpace(block_count));
            }
            else
            {


                // Either the BATManaged object is empty or its data
                // is composed of SmallBlocks; in either case,
                // allocating space in the BAT is inappropriate
            }
        }


        // allocate space for the block allocation table and take its
        // starting block
        int               batStartBlock       = bat.createBlocks();


        // get the extended block allocation table blocks
        HeaderBlockWriter header_block_writer = new HeaderBlockWriter(bigBlockSize);
        BATBlock[]        xbat_blocks         =
            header_block_writer.setBATBlocks(bat.countBlocks(),
                                             batStartBlock);


        // set the property table start block
        header_block_writer.setPropertyStart(_property_table.getStartBlock());

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Examples of org.apache.poi.poifs.storage.BlockAllocationTableWriter

        // create the small block store, and the SBAT
        SmallBlockTableWriter      sbtw       =
            new SmallBlockTableWriter(_documents, _property_table.getRoot());


        // create the block allocation table
        BlockAllocationTableWriter bat        =
            new BlockAllocationTableWriter();


        // create a list of BATManaged objects: the documents plus the
        // property table and the small block table
        List                       bm_objects = new ArrayList();


        bm_objects.addAll(_documents);
        bm_objects.add(_property_table);
        bm_objects.add(sbtw);
        bm_objects.add(sbtw.getSBAT());


        // walk the list, allocating space for each and assigning each
        // a starting block number
        Iterator iter = bm_objects.iterator();


        while (iter.hasNext())
        {
            BATManaged bmo         = ( BATManaged ) iter.next();
            int        block_count = bmo.countBlocks();


            if (block_count != 0)
            {
                bmo.setStartBlock(bat.allocateSpace(block_count));
            }
            else
            {


                // Either the BATManaged object is empty or its data
                // is composed of SmallBlocks; in either case,
                // allocating space in the BAT is inappropriate
            }
        }


        // allocate space for the block allocation table and take its
        // starting block
        int               batStartBlock       = bat.createBlocks();


        // get the extended block allocation table blocks
        HeaderBlockWriter header_block_writer = new HeaderBlockWriter();
        BATBlock[]        xbat_blocks         =
            header_block_writer.setBATBlocks(bat.countBlocks(),
                                             batStartBlock);


        // set the property table start block
        header_block_writer.setPropertyStart(_property_table.getStartBlock());

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Examples of org.apache.poi.poifs.storage.BlockAllocationTableWriter

        // create the small block store, and the SBAT
        SmallBlockTableWriter      sbtw       =
            new SmallBlockTableWriter(_documents, _property_table.getRoot());


        // create the block allocation table
        BlockAllocationTableWriter bat        =
            new BlockAllocationTableWriter();


        // create a list of BATManaged objects: the documents plus the
        // property table and the small block table
        List                       bm_objects = new ArrayList();


        bm_objects.addAll(_documents);
        bm_objects.add(_property_table);
        bm_objects.add(sbtw);
        bm_objects.add(sbtw.getSBAT());


        // walk the list, allocating space for each and assigning each
        // a starting block number
        Iterator iter = bm_objects.iterator();


        while (iter.hasNext())
        {
            BATManaged bmo         = ( BATManaged ) iter.next();
            int        block_count = bmo.countBlocks();


            if (block_count != 0)
            {
                bmo.setStartBlock(bat.allocateSpace(block_count));
            }
            else
            {


                // Either the BATManaged object is empty or its data
                // is composed of SmallBlocks; in either case,
                // allocating space in the BAT is inappropriate
            }
        }


        // allocate space for the block allocation table and take its
        // starting block
        int               batStartBlock       = bat.createBlocks();


        // get the extended block allocation table blocks
        HeaderBlockWriter header_block_writer = new HeaderBlockWriter();
        BATBlock[]        xbat_blocks         =
            header_block_writer.setBATBlocks(bat.countBlocks(),
                                             batStartBlock);


        // set the property table start block
        header_block_writer.setPropertyStart(_property_table.getStartBlock());

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Examples of org.apache.poi.poifs.storage.BlockAllocationTableWriter

        // create the small block store, and the SBAT
        SmallBlockTableWriter      sbtw       =
            new SmallBlockTableWriter(_documents, _property_table.getRoot());


        // create the block allocation table
        BlockAllocationTableWriter bat        =
            new BlockAllocationTableWriter();


        // create a list of BATManaged objects: the documents plus the
        // property table and the small block table
        List                       bm_objects = new ArrayList();


        bm_objects.addAll(_documents);
        bm_objects.add(_property_table);
        bm_objects.add(sbtw);
        bm_objects.add(sbtw.getSBAT());


        // walk the list, allocating space for each and assigning each
        // a starting block number
        Iterator iter = bm_objects.iterator();


        while (iter.hasNext())
        {
            BATManaged bmo         = ( BATManaged ) iter.next();
            int        block_count = bmo.countBlocks();


            if (block_count != 0)
            {
                bmo.setStartBlock(bat.allocateSpace(block_count));
            }
            else
            {


                // Either the BATManaged object is empty or its data
                // is composed of SmallBlocks; in either case,
                // allocating space in the BAT is inappropriate
            }
        }


        // allocate space for the block allocation table and take its
        // starting block
        int               batStartBlock       = bat.createBlocks();


        // get the extended block allocation table blocks
        HeaderBlockWriter header_block_writer = new HeaderBlockWriter();
        BATBlock[]        xbat_blocks         =
            header_block_writer.setBATBlocks(bat.countBlocks(),
                                             batStartBlock);


        // set the property table start block
        header_block_writer.setPropertyStart(_property_table.getStartBlock());

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