1 package org.jscsi.target.scsi.modeSense;
2
3
4 import java.nio.ByteBuffer;
5
6 import org.jscsi.target.util.ReadWrite;
7
8
9 /**
10 * A class representing the content of SHORT LBA MODE PAREMETER LOGICAL BLOCK DESCRIPTOR fields, which are part of
11 * {@link ModeParameterList} objects. This short format must be used if the LONG LBA bit is not set in the
12 * {@link ModeParameterList} objects's header.
13 *
14 * @see LongLogicalBlockDescriptor
15 * @author Andreas Ergenzinger
16 */
17 public final class ShortLogicalBlockDescriptor extends LogicalBlockDescriptor {
18
19 /**
20 * The serialized length in bytes of instances of this class.
21 */
22 static final int SIZE = 8;
23
24 /**
25 * The constructor.
26 *
27 * @param numberOfLogicalBlocks the number of equal-length logical blocks into which the storage medium is divided
28 * @param logicalBlockLength the length in bytes of the logical blocks
29 */
30 public ShortLogicalBlockDescriptor (long numberOfLogicalBlocks, int logicalBlockLength) {
31 super(numberOfLogicalBlocks, logicalBlockLength);
32 }
33
34 public void serialize (ByteBuffer byteBuffer, int index) {
35 // NUMBER OF LOGICAL BLOCKS
36 ReadWrite.writeInt((int) numberOfLogicalBlocks,// value
37 byteBuffer,// buffer
38 index);// start index
39
40 // LOGICAL BLOCK LENGTH
41 ReadWrite.writeThreeByteInt(byteBuffer,// buffer
42 logicalBlockLength,// value
43 index + 5);// index
44 }
45
46 public int size () {
47 return SIZE;
48 }
49
50 }