Package org.bouncycastle.asn1

Class DERNumericString

java.lang.Object

org.bouncycastle.asn1.ASN1Object

org.bouncycastle.asn1.ASN1Primitive

org.bouncycastle.asn1.DERNumericString

All Implemented Interfaces:

ASN1Encodable, ASN1String, Encodable

public class DERNumericString
extends ASN1Primitive
implements ASN1String

DER NumericString object - this is an ascii string of characters {0,1,2,3,4,5,6,7,8,9, }.

Constructor Summary

Constructors

Constructor	Description
DERNumericString(String string)	basic constructor - without validation..
DERNumericString(String string, boolean validate)	Constructor with optional validation.

Method Summary

Modifier and Type	Method	Description
static DERNumericString	getInstance(Object obj)	return a Numeric string from the passed in object
static DERNumericString	getInstance(ASN1TaggedObject obj, boolean explicit)	return an Numeric String from a tagged object.
byte[]	getOctets()
String	getString()
int	hashCode()	Returns an integer hash code for this object.
static boolean	isNumericString(String str)	Return true if the string can be represented as a NumericString ('0'..'9', ' ')
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

Constructor Detail

DERNumericString

public DERNumericString(String string)

basic constructor - without validation..

DERNumericString

public DERNumericString(String string,
                        boolean validate)

Constructor with optional validation.

Parameters:

string - the base string to wrap.

validate - whether or not to check the string.

Throws:

IllegalArgumentException - if validate is true and the string contains characters that should not be in a NumericString.

Method Detail

getInstance

public static DERNumericString getInstance(Object obj)

return a Numeric string from the passed in object

Parameters:

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

Returns:

a DERNumericString instance, or null

Throws:

IllegalArgumentException - if the object cannot be converted.

getInstance

public static DERNumericString getInstance(ASN1TaggedObject obj,
                                           boolean explicit)

return an Numeric 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 DERNumericString instance, or null.

Throws:

IllegalArgumentException - if the tagged object cannot be converted.

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.

getOctets

public byte[] getOctets()

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)

isNumericString

public static boolean isNumericString(String str)

Return true if the string can be represented as a NumericString ('0'..'9', ' ')

Parameters:

str - string to validate.

Returns:

true if numeric, fale otherwise.