Package org.apache.harmony.security.asn1

Class ASN1Integer

java.lang.Object

org.apache.harmony.security.asn1.ASN1Type

org.apache.harmony.security.asn1.ASN1Primitive

org.apache.harmony.security.asn1.ASN1Integer

All Implemented Interfaces:

ASN1Constants

public final class ASN1Integer
extends ASN1Primitive

This class represents ASN.1 Integer type.

See Also:

ASN.1

Field Summary

Fields inherited from class org.apache.harmony.security.asn1.ASN1Type

constrId, id

Fields inherited from interface org.apache.harmony.security.asn1.ASN1Constants

CLASS_APPLICATION, CLASS_CONTEXTSPECIFIC, CLASS_PRIVATE, CLASS_UNIVERSAL, PC_CONSTRUCTED, PC_PRIMITIVE, TAG_ANY, TAG_BITSTRING, TAG_BMPSTRING, TAG_BOOLEAN, TAG_C_BITSTRING, TAG_C_GENERALIZEDTIME, TAG_C_OCTETSTRING, TAG_C_SEQUENCE, TAG_C_SEQUENCEOF, TAG_C_SET, TAG_C_SETOF, TAG_C_UTCTIME, TAG_C_UTF8STRING, TAG_CHOICE, TAG_EMBEDDEDPDV, TAG_ENUM, TAG_EXTERNAL, TAG_GENERALIZEDTIME, TAG_GENERALSTRING, TAG_GRAPHICSTRING, TAG_IA5STRING, TAG_INSTANCEOF, TAG_INTEGER, TAG_ISO646STRING, TAG_NULL, TAG_NUMERICSTRING, TAG_OBJDESCRIPTOR, TAG_OCTETSTRING, TAG_OID, TAG_PRINTABLESTRING, TAG_REAL, TAG_RELATIVEOID, TAG_SEQUENCE, TAG_SEQUENCEOF, TAG_SET, TAG_SETOF, TAG_T61STRING, TAG_TELETEXSTRING, TAG_UNIVERSALSTRING, TAG_UTCTIME, TAG_UTF8STRING, TAG_VIDEOTEXSTRING, TAG_VISIBLESTRING

Constructor Summary

Constructors

Constructor	Description
ASN1Integer()	Constructs ASN.1 Integer type The constructor is provided for inheritance purposes when there is a need to create a custom ASN.1 Integer type.

Method Summary

Modifier and Type	Method	Description
Object	decode(BerInputStream in)	Decodes ASN.1 type.
void	encodeContent(BerOutputStream out)
static Object	fromIntValue(int value)	Converts primitive int value to a form most suitable for encoding.
Object	getDecodedObject(BerInputStream in)	Extracts array of bytes from BER input stream.
static ASN1Integer	getInstance()	Returns ASN.1 Integer type default implementation The default implementation works with encoding that is represented as byte array in two's-complement notation.
void	setEncodingContent(BerOutputStream out)
static BigInteger	toBigIntegerValue(Object decoded)	Converts decoded ASN.1 Integer to a BigInteger.
static int	toIntValue(Object decoded)	Converts decoded ASN.1 Integer to int value.

Methods inherited from class org.apache.harmony.security.asn1.ASN1Primitive

checkTag, encodeASN

Methods inherited from class org.apache.harmony.security.asn1.ASN1Type

decode, decode, decode, encode, getEncodedLength, toString, verify, verify

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

ASN1Integer

public ASN1Integer()

Constructs ASN.1 Integer type The constructor is provided for inheritance purposes when there is a need to create a custom ASN.1 Integer type. To get a default implementation it is recommended to use getInstance() method.

Method Details

getInstance

public static ASN1Integer getInstance()

Returns ASN.1 Integer type default implementation The default implementation works with encoding that is represented as byte array in two's-complement notation.

Returns:

ASN.1 Integer type default implementation

decode

public Object decode(BerInputStream in)
              throws IOException

Description copied from class: ASN1Type

Decodes ASN.1 type.

Specified by:

decode in class ASN1Type

Throws:

IOException - if an I/O error occurs or the end of the stream is reached

getDecodedObject

public Object getDecodedObject(BerInputStream in)
                        throws IOException

Extracts array of bytes from BER input stream.

Overrides:

getDecodedObject in class ASN1Type

Returns:

array of bytes

Throws:

IOException

encodeContent

public void encodeContent(BerOutputStream out)

Specified by:

encodeContent in class ASN1Type

setEncodingContent

public void setEncodingContent(BerOutputStream out)

Specified by:

setEncodingContent in class ASN1Type

toIntValue

public static int toIntValue(Object decoded)

Converts decoded ASN.1 Integer to int value. If the object represents an integer value larger than 32 bits, the high bits will be lost.

Parameters:

decoded - a decoded object corresponding to this type

Returns:

decoded int value.

toBigIntegerValue

public static BigInteger toBigIntegerValue(Object decoded)

Converts decoded ASN.1 Integer to a BigInteger.

Parameters:

decoded - a decoded object corresponding to this type

Returns:

decoded BigInteger value.

fromIntValue

public static Object fromIntValue(int value)

Converts primitive int value to a form most suitable for encoding.

Parameters:

value - primitive value to be encoded

Returns:

object suitable for encoding