org.bouncycastle.asn1

Class DERBitString

java.lang.Object

org.bouncycastle.asn1.ASN1Object

org.bouncycastle.asn1.ASN1Primitive

org.bouncycastle.asn1.DERBitString

All Implemented Interfaces:

ASN1Encodable, ASN1String, Encodable

Direct Known Subclasses:

NetscapeCertType, ReasonFlags

public class DERBitString
extends ASN1Primitive
implements ASN1String

Field Summary

Fields

Modifier and Type	Field and Description
protected byte[]	data
protected int	padBits

Constructor Summary

Constructors

Modifier	Constructor and Description
	DERBitString(ASN1Encodable obj)
	DERBitString(byte[] data)
	DERBitString(byte[] data, int padBits)
protected	DERBitString(byte data, int padBits)
	DERBitString(int value)

Method Summary

Modifier and Type	Method and Description
protected boolean	asn1Equals(ASN1Primitive o)
byte[]	getBytes()
protected static byte[]	getBytes(int bitString)
static DERBitString	getInstance(ASN1TaggedObject obj, boolean explicit) return a Bit String from a tagged object.
static DERBitString	getInstance(Object obj) return a Bit String from the passed in object
int	getPadBits()
protected static int	getPadBits(int bitString)
String	getString()
int	hashCode() Returns an integer hash code for this object.
int	intValue()
String	toString() Returns a string containing a concise, human-readable description of this object.

Methods inherited from class org.bouncycastle.asn1.ASN1Primitive

equals, fromByteArray, toASN1Primitive

Methods inherited from class org.bouncycastle.asn1.ASN1Object

getEncoded, getEncoded, hasEncodedTagValue, toASN1Object

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

data

protected byte[] data

padBits

protected int padBits

Constructor Detail

DERBitString

protected DERBitString(byte data,
                       int padBits)

DERBitString

public DERBitString(byte[] data,
                    int padBits)

Parameters:

data - the octets making up the bit string.

padBits - the number of extra bits at the end of the string.

DERBitString

public DERBitString(byte[] data)

DERBitString

public DERBitString(int value)

DERBitString

public DERBitString(ASN1Encodable obj)
             throws IOException

Throws:

IOException

Method Detail

getPadBits

protected static int getPadBits(int bitString)

Parameters:

bitString - an int containing the BIT STRING

Returns:

the correct number of pad bits for a bit string defined in a 32 bit constant

getBytes

protected static byte[] getBytes(int bitString)

Parameters:

bitString - an int containing the BIT STRING

Returns:

the correct number of bytes for a bit string defined in a 32 bit constant

getInstance

public static DERBitString getInstance(Object obj)

return a Bit String from the passed in object

Parameters:

obj - a DERBitString or an object that can be converted into one.

Returns:

a DERBitString instance, or null.

Throws:

IllegalArgumentException - if the object cannot be converted.

getInstance

public static DERBitString getInstance(ASN1TaggedObject obj,
                                       boolean explicit)

return a Bit String from a tagged object.

Parameters:

obj - the tagged object holding the object we want

explicit - true if the object is meant to be explicitly tagged false otherwise.

Returns:

a DERBitString instance, or null.

Throws:

IllegalArgumentException - if the tagged object cannot be converted.

getBytes

public byte[] getBytes()

getPadBits

public int getPadBits()

intValue

public int intValue()

Returns:

the value of the bit string as an int (truncating if necessary)

hashCode

public int hashCode()

Description copied from class: Object

Returns an integer hash code for this object. By contract, any two objects for which Object.equals(java.lang.Object) returns true must return the same hash code value. This means that subclasses of Object usually override both methods or neither method.

Note that hash values must not change over time unless information used in equals comparisons also changes.

See Writing a correct hashCode method if you intend implementing your own hashCode method.

Specified by:

hashCode in class ASN1Primitive

Returns:

this object's hash code.

See Also:

Object.equals(java.lang.Object)

asn1Equals

protected boolean asn1Equals(ASN1Primitive o)

getString

public String getString()

Specified by:

getString in interface ASN1String

toString

public String toString()

Description copied from class: Object

Returns a string containing a concise, human-readable description of this object. Subclasses are encouraged to override this method and provide an implementation that takes into account the object's type and data. The default implementation is equivalent to the following expression:

   getClass().getName() + '@' + Integer.toHexString(hashCode())

See Writing a useful toString method if you intend implementing your own toString method.

Overrides:

toString in class Object

Returns:

a printable representation of this object.