org.apache.asn1.ber.primitives
Class PrimitiveUtils
java.lang.Object
org.apache.asn1.ber.primitives.PrimitiveUtils
public class PrimitiveUtils
- extends java.lang.Object
Utilities for decoding and encoding primitive constructs.
- Version:
- $Rev: 157644 $
- Author:
- Apache Directory Project
Method Summary |
static boolean |
berDecodeBoolean(byte value)
|
static int |
decodeInt(byte[] bites,
int offset,
int length)
Decodes a BER encoded ASN.1 INTEGER into a Java primitive int. |
static boolean |
derCerDecodeBoolean(byte value)
|
static byte[] |
encodeBoolean(boolean bool)
Encodes a boolean as a byte[] with one byte following the stricter CER
and DER requirements where true must be a value of 0xFF and false is
0x00. |
static byte |
encodeBooleanAsByte(boolean bool)
Encodes a boolean as a byte following the stricter CER and DER
requirements where true must be a value of 0xFF and false is 0x00. |
static byte[] |
encodeInt(int source)
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ONE_BYTE_MAX
private static final int ONE_BYTE_MAX
- See Also:
- Constant Field Values
ONE_BYTE_MIN
private static final int ONE_BYTE_MIN
- See Also:
- Constant Field Values
TWO_BYTE_MAX
private static final int TWO_BYTE_MAX
- See Also:
- Constant Field Values
TWO_BYTE_MIN
private static final int TWO_BYTE_MIN
- See Also:
- Constant Field Values
THREE_BYTE_MAX
private static final int THREE_BYTE_MAX
- See Also:
- Constant Field Values
THREE_BYTE_MIN
private static final int THREE_BYTE_MIN
- See Also:
- Constant Field Values
FOUR_BYTE_MAX
private static final int FOUR_BYTE_MAX
- See Also:
- Constant Field Values
FOUR_BYTE_MIN
private static final int FOUR_BYTE_MIN
- See Also:
- Constant Field Values
TRUE_ARRAY
private static final byte[] TRUE_ARRAY
FALSE_ARRAY
private static final byte[] FALSE_ARRAY
PrimitiveUtils
public PrimitiveUtils()
berDecodeBoolean
public static boolean berDecodeBoolean(byte value)
encodeBooleanAsByte
public static byte encodeBooleanAsByte(boolean bool)
- Encodes a boolean as a byte following the stricter CER and DER
requirements where true must be a value of 0xFF and false is 0x00.
- Parameters:
bool
- the boolean to encode
- Returns:
- 0xFF if bool is true, 0x00 if the bool is false
encodeBoolean
public static byte[] encodeBoolean(boolean bool)
- Encodes a boolean as a byte[] with one byte following the stricter CER
and DER requirements where true must be a value of 0xFF and false is
0x00. Although there is alway one byte returned we return a byte [] as
a convenience since most of the time a byte[] is expected after encoding
a primitive type.
- Parameters:
bool
- the boolean to encode
- Returns:
- a byte array of length 1 where the single byte is 0xFF if bool
is true, 0x00 if the bool is false
derCerDecodeBoolean
public static boolean derCerDecodeBoolean(byte value)
encodeInt
public static byte[] encodeInt(int source)
decodeInt
public static int decodeInt(byte[] bites,
int offset,
int length)
- Decodes a BER encoded ASN.1 INTEGER into a Java primitive int.
- Parameters:
bites
- the bytes containing the encoded ASN.1 INTEGERoffset
- the offset from zero where the bytes beginlength
- the length of the bytes to read from the offset
- Returns:
- the decoded primitive int or zero if the length is 0
- Throws:
java.lang.IllegalArgumentException
- if the length is not within
range [0-4]
java.lang.IndexOutOfBoundsException
- if offset is less than 0 or
it is greater than bites.length - length
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