org.exoplatform.services.security.sso.spnego.message
Class AbstractMessagePart

java.lang.Object
  org.exoplatform.services.security.sso.spnego.message.AbstractMessagePart

All Implemented Interfaces:

MessagePart

Direct Known Subclasses:

AbstractSequence, ApplicationConstructedObject, ContextFlags, NegResult, NegTokenSequencePart, OctetString, Oid

public abstract class AbstractMessagePart
extends Object
implements MessagePart

Author:

Martin Algesten

Field Summary

Fields inherited from interface org.exoplatform.services.security.sso.spnego.message.MessagePart

TYPE_APPLICATION_CONSTRUCTED_OBJECT, TYPE_BIT_STRING, TYPE_ENUMERATED, TYPE_NEG_TOKEN_INIT, TYPE_NEG_TOKEN_TARG, TYPE_OCTET_STRING, TYPE_OID, TYPE_SEQUENCE

Constructor Summary

AbstractMessagePart()

Method Summary

static void	arraycopy(byte[] src, int srcPos, int[] dest, int destPos, int length)
static void	arraycopy(int[] src, int srcPos, byte[] dest, int destPos, int length)
protected int[]	calculateDerLength(int length) Calculates the ASN.1 DER represenation of the length given.
protected int[]	wrap(int derType, int[] wrappedData) Creates a der part of a message with the type first, then der length and then the actual data.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.exoplatform.services.security.sso.spnego.message.MessagePart

getDerType, parse, toDer

Constructor Detail

AbstractMessagePart

public AbstractMessagePart()

Method Detail

calculateDerLength

protected int[] calculateDerLength(int length)

Calculates the ASN.1 DER represenation of the length given.

Parameters:

length - the length.

Returns:

if length < 0x80, the length straight off. If more than 0x80, the first byte is 0x80 | [number of bytes required to represent length] and then bytes high byte first.

wrap

protected int[] wrap(int derType,
                     int[] wrappedData)

Creates a der part of a message with the type first, then der length and then the actual data.

Parameters:

derType - the byte identifier of the data type.

wrappedData - the data.

Returns:

[derType][derLength][data]

arraycopy

public static void arraycopy(byte[] src,
                             int srcPos,
                             int[] dest,
                             int destPos,
                             int length)

Parameters:

src - the source bytes.

srcPos - the start position in source.

dest - the destination.

destPos - the start position in destination.

length - how many bytes must be copy.

arraycopy

public static void arraycopy(int[] src,
                             int srcPos,
                             byte[] dest,
                             int destPos,
                             int length)

Parameters:

src - the source bytes.

srcPos - the start position in source.

dest - the destination.

destPos - the start position in destination.

length - how many bytes must be copy.