104 lines
3.7 KiB
Java
104 lines
3.7 KiB
Java
package com.bytezone.diskbrowser.applefile;
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import java.util.ArrayList;
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import java.util.List;
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import com.bytezone.diskbrowser.utilities.HexFormatter;
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import com.bytezone.diskbrowser.utilities.Utility;
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// -----------------------------------------------------------------------------------//
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public class FileTypeDescriptorTable extends AbstractFile
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// -----------------------------------------------------------------------------------//
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{
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int versionMajor;
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int versionMinor;
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int flags;
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int numEntries;
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int spareWord;
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int indexRecordSize;
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int offsetToIdx;
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private final List<IndexRecord> indexRecords = new ArrayList<> ();
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// ---------------------------------------------------------------------------------//
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public FileTypeDescriptorTable (String name, byte[] buffer)
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// ---------------------------------------------------------------------------------//
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{
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super (name, buffer);
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versionMajor = buffer[0] & 0xFF;
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versionMinor = buffer[1] & 0xFF;
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flags = Utility.getShort (buffer, 2);
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numEntries = Utility.getShort (buffer, 4);
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spareWord = Utility.getShort (buffer, 6);
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indexRecordSize = Utility.getShort (buffer, 8);
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offsetToIdx = Utility.getShort (buffer, 10);
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int ptr = offsetToIdx;
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for (int i = 0; i < numEntries; i++)
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{
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indexRecords.add (new IndexRecord (buffer, ptr));
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ptr += indexRecordSize;
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}
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public String getText ()
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// ---------------------------------------------------------------------------------//
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{
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StringBuilder text = new StringBuilder ("Name : " + name + "\n\n");
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text.append ("File Type Descriptor Table\n\n");
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text.append (
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String.format ("Version ........... %d.%d%n", versionMajor, versionMinor));
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text.append (String.format ("Flags ............. %04X%n", flags));
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text.append (String.format ("NumEntries ........ %d%n", numEntries));
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text.append (String.format ("SpareWord ......... %d%n", spareWord));
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text.append (String.format ("IndexRecordSize ... %d%n", indexRecordSize));
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text.append (String.format ("OffsetToIdx ....... %d%n%n", offsetToIdx));
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text.append ("Type Aux Flags Offset String\n");
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for (IndexRecord indexRecord : indexRecords)
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text.append (String.format ("%04X %04X %04X %04X %s%n",
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indexRecord.fileType, indexRecord.auxType, indexRecord.flags,
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indexRecord.offset, indexRecord.string));
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text.deleteCharAt (text.length () - 1);
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return text.toString ();
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}
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// ---------------------------------------------------------------------------------//
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class IndexRecord
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// ---------------------------------------------------------------------------------//
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{
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int fileType;
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int auxType;
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int flags;
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int offset;
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String string;
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public IndexRecord (byte[] buffer, int offset)
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{
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fileType = Utility.getShort (buffer, offset);
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auxType = Utility.getLong (buffer, offset + 2);
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flags = Utility.getShort (buffer, offset + 6);
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this.offset = Utility.getShort (buffer, offset + 8);
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string = HexFormatter.getPascalString (buffer, this.offset);
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}
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@Override
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public String toString ()
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{
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StringBuilder text = new StringBuilder ();
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text.append (String.format ("File type ...... %d%n", fileType));
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text.append (String.format ("Aux type ....... %04X%n", auxType));
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text.append (String.format ("Flags .......... %04X%n", flags));
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text.append (String.format ("Offset ......... %04X%n", offset));
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text.append (String.format ("String ......... %s%n", string));
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return text.toString ();
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}
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}
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} |