Coverage Report

Coverage Report - org.jscsi.target.scsi.cdb.CdbType

Classes in this File

0/16

0/9

 package org.jscsi.target.scsi.cdb;
 
 /**
  * The {@link CdbType} determines the length of a serialized {@link CommandDescriptorBlock} (CDB) object.
  * <p>
  * The first 3 bytes (the group code) of the CDB's {@link ScsiOperationCode} field specify the {@link CdbType}.
  * 
  * @author Andreas Ergenzinger
  */
 public enum CdbType {
     /**
      * The CDB is 6 bytes long.
      */
     SIX_BYTE_COMMANDS,
     /**
      * The CDB is 10 bytes long.
      */
     TEN_BYTE_COMMANDS,
     /**
      * The CDB is 12 bytes long.
      */
     TWELVE_BYTE_COMMANDS,
     /**
      * The CDB is 16 bytes long.
      */
     SIXTEEN_BYTE_COMMANDS,
     /**
      * The CDB length is not determined by the CDB's {@link ScsiOperationCode} field.
      */
     VARIABLE_LENGTH_COMMANDS,
     /**
      * The CDB length is vendor-specific.
      */
     VENDOR_SPECIFIC;
 
     /**
      * Returns the {@link CdbType} for the passed {@link ScsiOperationCode}.
      * 
      * @param scsiOpCode determines CDB length
      * @return the appropriate {@link CdbType}
      */
     public static CdbType getCdbType (ScsiOperationCode scsiOpCode) {
         final int groupCode = scsiOpCode.getGroupCode();
 
         switch (groupCode) {
             case 0 :// 000b
                 return SIX_BYTE_COMMANDS;
             case 1 :// 001b
             case 2 :// 010b
                 return TEN_BYTE_COMMANDS;
             case 3 :// 011b
                 return VARIABLE_LENGTH_COMMANDS;
             case 4 :// 100b
                 return SIXTEEN_BYTE_COMMANDS;
             case 5 :// 101b
                 return TWELVE_BYTE_COMMANDS;
             case 6 :// 110b
             case 7 :// 111b
                 return VENDOR_SPECIFIC;
             default :
                 return null;// this really should not happen!
         }
     }
 
 }

1		package org.jscsi.target.scsi.cdb;
2
3		/**
4		* The {@link CdbType} determines the length of a serialized {@link CommandDescriptorBlock} (CDB) object.
5		* <p>
6		* The first 3 bytes (the group code) of the CDB's {@link ScsiOperationCode} field specify the {@link CdbType}.
7		*
8		* @author Andreas Ergenzinger
9		*/
10	0	public enum CdbType {
11		/**
12		* The CDB is 6 bytes long.
13		*/
14	0	SIX_BYTE_COMMANDS,
15		/**
16		* The CDB is 10 bytes long.
17		*/
18	0	TEN_BYTE_COMMANDS,
19		/**
20		* The CDB is 12 bytes long.
21		*/
22	0	TWELVE_BYTE_COMMANDS,
23		/**
24		* The CDB is 16 bytes long.
25		*/
26	0	SIXTEEN_BYTE_COMMANDS,
27		/**
28		* The CDB length is not determined by the CDB's {@link ScsiOperationCode} field.
29		*/
30	0	VARIABLE_LENGTH_COMMANDS,
31		/**
32		* The CDB length is vendor-specific.
33		*/
34	0	VENDOR_SPECIFIC;
35
36		/**
37		* Returns the {@link CdbType} for the passed {@link ScsiOperationCode}.
38		*
39		* @param scsiOpCode determines CDB length
40		* @return the appropriate {@link CdbType}
41		*/
42		public static CdbType getCdbType (ScsiOperationCode scsiOpCode) {
43	0	final int groupCode = scsiOpCode.getGroupCode();
44
45	0	switch (groupCode) {
46		case 0 :// 000b
47	0	return SIX_BYTE_COMMANDS;
48		case 1 :// 001b
49		case 2 :// 010b
50	0	return TEN_BYTE_COMMANDS;
51		case 3 :// 011b
52	0	return VARIABLE_LENGTH_COMMANDS;
53		case 4 :// 100b
54	0	return SIXTEEN_BYTE_COMMANDS;
55		case 5 :// 101b
56	0	return TWELVE_BYTE_COMMANDS;
57		case 6 :// 110b
58		case 7 :// 111b
59	0	return VENDOR_SPECIFIC;
60		default :
61	0	return null;// this really should not happen!
62		}
63		}
64
65		}