package com.bytezone.diskbrowser.dos; import com.bytezone.diskbrowser.disk.DiskAddress; import com.bytezone.diskbrowser.dos.DosDisk.FileType; import com.bytezone.diskbrowser.utilities.HexFormatter; class CatalogEntry extends AbstractCatalogEntry { int textFileGaps; int length; int address; public CatalogEntry (DosDisk dosDisk, DiskAddress catalogSector, byte[] entryBuffer) { super (dosDisk, catalogSector, entryBuffer); // build lists of ts and data sectors if (reportedSize > 0 && disk.isValidAddress (entryBuffer[0], entryBuffer[1])) { // Get address of first TS-list sector DiskAddress da = disk.getDiskAddress (entryBuffer[0], entryBuffer[1]); // Loop through all TS-list sectors loop: while (da.getBlock () > 0) { if (dosDisk.stillAvailable (da)) dosDisk.sectorTypes[da.getBlock ()] = dosDisk.tsListSector; else { System.out.printf ("Attempt to assign TS sector to occupied sector " + ": %s from %s%n", da, name); // break; } tsSectors.add (da); byte[] sectorBuffer = disk.readSector (da); int startPtr = 12; // the tsList *should* start at 0xC0, but some disks start in the unused bytes if (false) for (int i = 7; i < startPtr; i++) if (sectorBuffer[i] != 0) { startPtr = i; break; } DiskAddress thisDA = da; for (int i = startPtr, max = disk.getBlockSize (); i < max; i += 2) { da = getValidAddress (sectorBuffer, i); if (da == null) { System.out.print ("T/S list in sector " + i); System.out.printf (" contains an invalid address : %02X, %02X (file %s)%n", sectorBuffer[i], sectorBuffer[i + 1], name.trim ()); break loop; } if (da.getBlock () == 0) { if (fileType != FileType.Text) break; ++textFileGaps; dataSectors.add (null); } else { dataSectors.add (da); if (dosDisk.stillAvailable (da)) dosDisk.sectorTypes[da.getBlock ()] = dosDisk.dataSector; else { System.out .print ("Attempt to assign Data sector to occupied sector : " + da); System.out.println (" from " + name); } } } da = getValidAddress (sectorBuffer, 1); if (da == null) { System.out.print ("Next T/S list in sector " + thisDA); System.out.printf (" is invalid : %02X, %02X%n", sectorBuffer[1], sectorBuffer[2]); break; } if (thisDA.compareTo (da) == 0) { System.out.printf ("Next T/S list in sector %s points to itself%n", thisDA); break; } } } // remove trailing empty sectors if (fileType == FileType.Text) { while (dataSectors.size () > 0) { DiskAddress da = dataSectors.get (dataSectors.size () - 1); if (da == null) { dataSectors.remove (dataSectors.size () - 1); --textFileGaps; } else break; } } // get the file length if (dataSectors.size () > 0 && fileType != FileType.Text) { byte[] buffer = disk.readSector (dataSectors.get (0)); switch (fileType) { case IntegerBasic: case ApplesoftBasic: length = HexFormatter.intValue (buffer[0], buffer[1]); break; default: address = HexFormatter.intValue (buffer[0], buffer[1]); length = HexFormatter.intValue (buffer[2], buffer[3]); } } } public String getDetails () { int actualSize = dataSectors.size () + tsSectors.size () - textFileGaps; String addressText = address == 0 ? "" : String.format ("$%4X", address); String lengthText = length == 0 ? "" : String.format ("$%4X %,6d", length, length); String message = ""; String lockedFlag = (locked) ? "*" : " "; if (reportedSize != actualSize) message += "Bad size (" + reportedSize + ") "; if (dataSectors.size () == 0) message += "No data "; return String.format ("%1s %1s %03d %-30.30s %-5s " + "%-13s %2d %3d %s", lockedFlag, getFileType (), actualSize, name, addressText, lengthText, tsSectors.size (), (dataSectors.size () - textFileGaps), message.trim ()); } }