org.apache.asn1new.ber
Class AbstractContainer

java.lang.Object
  org.apache.asn1new.ber.AbstractContainer

All Implemented Interfaces:

IAsn1Container

public class AbstractContainer

extends java.lang.Object

implements IAsn1Container

This class is the abstract container used to store the current state of a PDU being decoded. It also stores the grammars used to decode the PDU, and zll the informations needed to decode a PDU.

Author:

Apache Directory Project

Field Summary

protected int	currentGrammar The current grammar
protected IGrammar[]	grammars All the possible grammars
protected IGrammar[]	grammarStack The grammars that are used.
protected int	nbGrammars The number of stored grammars
protected TLV	parentTLV The parent TLV
protected int	state The current state of the decoding
protected IStates	states Store the different states for debug purpose
protected int[]	stateStack Store a stack of the current states used when switching grammars
protected TLV	tlv The current TLV
protected int	transition The current transition

Constructor Summary

AbstractContainer()

Method Summary

void	addGrammar(IGrammar grammar) Add a IGrammar to use
void	clean() Clean the container for the next usage.
int	getCurrentGrammar() Gert the current grammar number
int	getCurrentGrammarType() Get the current grammar type.
TLV	getCurrentTLV() Get the current TLV
IGrammar	getGrammar() DOCUMENT ME!
TLV	getParentTLV() Get the parent TLV;
int	getState() Get the current grammar state
IStates	getStates() Get the states for this container's grammars
int	getTransition() Get the transition
int	restoreGrammar() restore the previous grammar (the one before a switch has occured)
void	setCurrentTLV(TLV tlv) Set the current TLV
void	setInitGrammar(int grammar) Initialize the grammar stack
void	setParentTLV(TLV parentTLV) Set the parent TLV.
void	setState(int state) Set the new current state
void	setTransition(int transition) Update the transition from a state to another
void	switchGrammar(int currentState, int grammar) Switch to another grammar

Methods inherited from class java.lang.Object

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

Field Detail

grammarStack

protected IGrammar[] grammarStack

The grammars that are used. It's a stack as we can switch grammars

grammars

protected IGrammar[] grammars

All the possible grammars

stateStack

protected int[] stateStack

Store a stack of the current states used when switching grammars

nbGrammars

protected int nbGrammars

The number of stored grammars

currentGrammar

protected int currentGrammar

The current grammar

state

protected int state

The current state of the decoding

transition

protected int transition

The current transition

tlv

protected TLV tlv

The current TLV

states

protected IStates states

Store the different states for debug purpose

parentTLV

protected TLV parentTLV

The parent TLV

Constructor Detail

AbstractContainer

public AbstractContainer()

Method Detail

getGrammar

public IGrammar getGrammar()

DOCUMENT ME!

Specified by:

getGrammar in interface IAsn1Container

Returns:

Returns the grammar used to decode a LdapMessage.

addGrammar

public void addGrammar(IGrammar grammar)

Add a IGrammar to use

Specified by:

addGrammar in interface IAsn1Container

Parameters:

grammar - The grammar to add.

switchGrammar

public void switchGrammar(int currentState,
                          int grammar)

Switch to another grammar

Specified by:

switchGrammar in interface IAsn1Container

Parameters:

currentState - DOCUMENT ME!

grammar - The grammar to add.

restoreGrammar

public int restoreGrammar()

restore the previous grammar (the one before a switch has occured)

Specified by:

restoreGrammar in interface IAsn1Container

Returns:

The previous current state, if any.

getState

public int getState()

Get the current grammar state

Specified by:

getState in interface IAsn1Container

Returns:

Returns the current grammar state

setState

public void setState(int state)

Set the new current state

Specified by:

setState in interface IAsn1Container

Parameters:

state - The new state

getTransition

public int getTransition()

Get the transition

Specified by:

getTransition in interface IAsn1Container

Returns:

Returns the transition from the previous state to the new state

setTransition

public void setTransition(int transition)

Update the transition from a state to another

Specified by:

setTransition in interface IAsn1Container

Parameters:

transition - The transition to set

getCurrentGrammar

public int getCurrentGrammar()

Gert the current grammar number

Specified by:

getCurrentGrammar in interface IAsn1Container

Returns:

Returns the currentGrammar.

getCurrentGrammarType

public int getCurrentGrammarType()

Get the current grammar type.

Specified by:

getCurrentGrammarType in interface IAsn1Container

Returns:

Returns the current Grammar type, or -1 if not found.

setInitGrammar

public void setInitGrammar(int grammar)

Initialize the grammar stack

Specified by:

setInitGrammar in interface IAsn1Container

Parameters:

grammar - Set the initial grammar

setCurrentTLV

public void setCurrentTLV(TLV tlv)

Set the current TLV

Specified by:

setCurrentTLV in interface IAsn1Container

Parameters:

tlv - The current TLV

getCurrentTLV

public TLV getCurrentTLV()

Get the current TLV

Specified by:

getCurrentTLV in interface IAsn1Container

Returns:

Returns the current TLV being decoded

getStates

public IStates getStates()

Get the states for this container's grammars

Specified by:

getStates in interface IAsn1Container

Returns:

Returns the states.

getParentTLV

public TLV getParentTLV()

Get the parent TLV;

Specified by:

getParentTLV in interface IAsn1Container

Returns:

Returns the parent TLV, if any.

setParentTLV

public void setParentTLV(TLV parentTLV)

Set the parent TLV.

Specified by:

setParentTLV in interface IAsn1Container

clean

public void clean()

Clean the container for the next usage.