public void TestFill() { for (int j = 0; j <= 8; j++) { ArrayList foo = new ArrayList(); for (int k = 0; k < j; k++) { foo.Add(new Object()); } int result = SmallDocumentBlock.Fill(POIFSConstants.SMALLER_BIG_BLOCK_SIZE_DETAILS, foo); Assert.AreEqual((j + 7) / 8, result, "correct big block count: "); Assert.AreEqual(8 * result, foo.Count, "correct small block count: "); for (int m = j; m < foo.Count; m++) { BlockWritable block = (BlockWritable)foo[m]; MemoryStream stream = new MemoryStream(); block.WriteBlocks(stream); byte[] output = stream.ToArray(); Assert.AreEqual(64, output.Length, "correct output size (block[ " + m + " ]): "); for (int n = 0; n < 64; n++) { Assert.AreEqual((byte)0xff, output[n], "correct value (block[ " + m + " ][ " + n + " ]): "); } } } }
/// <summary> /// Writes the file system. /// </summary> /// <param name="stream">the OutputStream to which the filesystem will be /// written</param> public void WriteFileSystem(Stream stream) { // Get the property table Ready _property_table.PreWrite(); // Create the small block store, and the SBAT SmallBlockTableWriter sbtw = new SmallBlockTableWriter(bigBlockSize, _documents, _property_table.Root); // 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 <object> bm_objects = new List <object>(); bm_objects.AddRange(_documents); bm_objects.Add(_property_table); bm_objects.Add(sbtw); bm_objects.Add(sbtw.SBAT); // walk the list, allocating space for each and assigning each // a starting block number IEnumerator iter = bm_objects.GetEnumerator(); while (iter.MoveNext()) { BATManaged bmo = ( BATManaged )iter.Current; int block_count = bmo.CountBlocks; if (block_count != 0) { bmo.StartBlock = 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.PropertyStart = _property_table.StartBlock; // Set the small block allocation table start block header_block_Writer.SBATStart = sbtw.SBAT.StartBlock; // Set the small block allocation table block count header_block_Writer.SBATBlockCount = sbtw.SBATBlockCount; // the header is now properly initialized. Make a list of // Writers (the header block, followed by the documents, the // property table, the small block store, the small block // allocation table, the block allocation table, and the // extended block allocation table blocks) List <object> Writers = new List <object>(); Writers.Add(header_block_Writer); Writers.AddRange(_documents); Writers.Add(_property_table); Writers.Add(sbtw); Writers.Add(sbtw.SBAT); Writers.Add(bat); for (int j = 0; j < xbat_blocks.Length; j++) { Writers.Add(xbat_blocks[j]); } // now, Write everything out iter = Writers.GetEnumerator(); while (iter.MoveNext()) { BlockWritable Writer = ( BlockWritable )iter.Current; Writer.WriteBlocks(stream); } Writers = null; iter = null; }