Coverage Report

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

Classes in this File

0/16

 package org.jscsi.target.scsi.cdb;
 
 /**
  * The OPERATION CODE of a Command Descriptor Block specifies the type of command the initiator wants the target to
  * perform.
  * <p>
  * The OPERATION CODE of the {@link CommandDescriptorBlock} has a GROUP CODE field and a COMMAND CODE field. The
  * three-bit GROUP CODE field provides for eight groups of command codes. The five-bit COMMAND CODE field provides for
  * thirty-two command codes in each group. A total of 256 possible operation codes exist.
  * <p>
  * The value of the GROUP CODE field specifies the {@link CommandDescriptorBlock}'s length.
  * 
  * @see CdbType
  * @author Andreas Ergenzinger
  */
 public enum ScsiOperationCode {
     TEST_UNIT_READY((byte) 0x00), REQUEST_SENSE((byte) 0x03), FORMAT_UNIT((byte) 0x04), READ_6((byte) 0x08), WRITE_6((byte) 0x0a), INQUIRY((byte) 0x12), MODE_SELECT_6((byte) 0x15), MODE_SENSE_6((byte) 0x1a), SEND_DIAGNOSTIC((byte) 0x1d), READ_CAPACITY_10((byte) 0x25), READ_10((byte) 0x28), WRITE_10((byte) 0x2a), READ_CAPACITY_16((byte) 0x9e), REPORT_LUNS((byte) 0xa0);
 
     /**
      * The serialized value of the operation code.
      */
     private final byte value;
 
     /**
      * Maps byte values/index positions to {@link ScsiOperationCode} constants.
      */
     private static final ScsiOperationCode[] mapping = new ScsiOperationCode[256];
     static {// initialize mapping
         final ScsiOperationCode[] values = values();
         int index;
         for (ScsiOperationCode v : values) {
             index = (v.value & 255);
             mapping[index] = v;
         }
     }
 
     /**
      * Returns the {@link ScsiOperationCode} corresponding to the passed byte value.
      * 
      * @param value the serialized value of a SCSI operation code
      * @return the corresponding {@link ScsiOperationCode} or <code>null</code> if the passed value is not known by the
      *         jSCSI Target
      */
     public static final ScsiOperationCode valueOf (final byte value) {
         return mapping[value & 255];
     }
 
     private ScsiOperationCode (final byte value) {
         this.value = value;
     }
 
     /**
      * Returns the serialized value of the operation code.
      * 
      * @return the serialized value of the operation code
      */
     public final byte value () {
         return value;
     }
 
     /**
      * The three-bit GROUP CODE field provides for eight groups of command codes.
      * 
      * @return the three-bit GROUP CODE field
      */
     public int getGroupCode () {
         return (value >>> 5) & 7;
     }
 
     /**
      * Returns the five-bit COMMAND CODE field.
      * 
      * @return the five-bit COMMAND CODE field
      */
     public int getCommandCode () {
         return value & 31;
     }
 
     /**
      * Returns the {@link CdbType} for this operation code.
      * 
      * @return the {@link CdbType} for this operation code
      */
     public CdbType getCdbType () {
         return CdbType.getCdbType(this);
     }
 }

1		package org.jscsi.target.scsi.cdb;
2
3		/**
4		* The OPERATION CODE of a Command Descriptor Block specifies the type of command the initiator wants the target to
5		* perform.
6		* <p>
7		* The OPERATION CODE of the {@link CommandDescriptorBlock} has a GROUP CODE field and a COMMAND CODE field. The
8		* three-bit GROUP CODE field provides for eight groups of command codes. The five-bit COMMAND CODE field provides for
9		* thirty-two command codes in each group. A total of 256 possible operation codes exist.
10		* <p>
11		* The value of the GROUP CODE field specifies the {@link CommandDescriptorBlock}'s length.
12		*
13		* @see CdbType
14		* @author Andreas Ergenzinger
15		*/
16	0	public enum ScsiOperationCode {
17	0	TEST_UNIT_READY((byte) 0x00), REQUEST_SENSE((byte) 0x03), FORMAT_UNIT((byte) 0x04), READ_6((byte) 0x08), WRITE_6((byte) 0x0a), INQUIRY((byte) 0x12), MODE_SELECT_6((byte) 0x15), MODE_SENSE_6((byte) 0x1a), SEND_DIAGNOSTIC((byte) 0x1d), READ_CAPACITY_10((byte) 0x25), READ_10((byte) 0x28), WRITE_10((byte) 0x2a), READ_CAPACITY_16((byte) 0x9e), REPORT_LUNS((byte) 0xa0);
18
19		/**
20		* The serialized value of the operation code.
21		*/
22		private final byte value;
23
24		/**
25		* Maps byte values/index positions to {@link ScsiOperationCode} constants.
26		*/
27	0	private static final ScsiOperationCode[] mapping = new ScsiOperationCode[256];
28		static {// initialize mapping
29	0	final ScsiOperationCode[] values = values();
30		int index;
31	0	for (ScsiOperationCode v : values) {
32	0	index = (v.value & 255);
33	0	mapping[index] = v;
34		}
35	0	}
36
37		/**
38		* Returns the {@link ScsiOperationCode} corresponding to the passed byte value.
39		*
40		* @param value the serialized value of a SCSI operation code
41		* @return the corresponding {@link ScsiOperationCode} or <code>null</code> if the passed value is not known by the
42		* jSCSI Target
43		*/
44		public static final ScsiOperationCode valueOf (final byte value) {
45	0	return mapping[value & 255];
46		}
47
48	0	private ScsiOperationCode (final byte value) {
49	0	this.value = value;
50	0	}
51
52		/**
53		* Returns the serialized value of the operation code.
54		*
55		* @return the serialized value of the operation code
56		*/
57		public final byte value () {
58	0	return value;
59		}
60
61		/**
62		* The three-bit GROUP CODE field provides for eight groups of command codes.
63		*
64		* @return the three-bit GROUP CODE field
65		*/
66		public int getGroupCode () {
67	0	return (value >>> 5) & 7;
68		}
69
70		/**
71		* Returns the five-bit COMMAND CODE field.
72		*
73		* @return the five-bit COMMAND CODE field
74		*/
75		public int getCommandCode () {
76	0	return value & 31;
77		}
78
79		/**
80		* Returns the {@link CdbType} for this operation code.
81		*
82		* @return the {@link CdbType} for this operation code
83		*/
84		public CdbType getCdbType () {
85	0	return CdbType.getCdbType(this);
86		}
87		}