Package edu.uiuc.ncsa.security.util.functor.parser.event

Class SwitchHandler

java.lang.Object

edu.uiuc.ncsa.security.util.functor.parser.AbstractHandler

edu.uiuc.ncsa.security.util.functor.parser.event.SwitchHandler

All Implemented Interfaces:

CommaListener, DelimiterListener, Serializable, EventListener

public class SwitchHandler
extends AbstractHandler
implements DelimiterListener, CommaListener

Event-Driven Logic BlockS handler. This is the outermost part of any parsing operation. LogicBlocks are basicallt just a type of switch statement that allows for some awareness of how to evaluate the components (standard switch is to evaluate exactly one, out xor case).

This has a few specialized calls to let you get results from running logic blocks.

Created by Jeff Gaynor
on 7/16/18 at 2:34 PM

See Also:

Serialized Form

Field Summary

Fields inherited from class edu.uiuc.ncsa.security.util.functor.parser.AbstractHandler

closeDelimiterCount, CONDITIONAL_TYPE, FUNCTOR_TYPE, openDelimiterCount, SWITCH_TYPE, used

Constructor Summary

Constructors

Constructor	Description
SwitchHandler(ConditionalHandler conditionalHandler, JFunctorFactory functorFactory)

Method Summary

Modifier and Type	Method	Description
void	closeDelimiter(DelimiterEvent delimeterEvent)
void	execute()
jThen	getConsequentAt(int index)	Get the logic block at the index and return the consequent (i.e.
List<JFunctor>	getFunctorMapEntry(String key)
int	getHandlerType()	Allows for determining the type of handler without resorting to a lot of java class operations.
LogicBlocks<? extends LogicBlock>	getLogicBlocks()
Object	getResultAt(int consequentIndex, int resultIndex)	Fetches the consequent at consequentIndex then grabs the list at resultIndex (since consequents have lists of results) and returns the object.
void	gotComma(CommaEvent commaEvent)
boolean	hasConsequentAt(int index)
void	openDelimiter(DelimiterEvent delimeterEvent)
void	reset()
void	runLogicBlocks()

Methods inherited from class edu.uiuc.ncsa.security.util.functor.parser.AbstractHandler

areDelimitersBalanced, convertType, equals, getFunctorFactory, isUsed, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

SwitchHandler

public SwitchHandler(ConditionalHandler conditionalHandler,
                     JFunctorFactory functorFactory)

Method Detail

runLogicBlocks

public void runLogicBlocks()

getHandlerType

public int getHandlerType()

Description copied from class: AbstractHandler

Allows for determining the type of handler without resorting to a lot of java class operations.

Specified by:

getHandlerType in class AbstractHandler

Returns:

getConsequentAt

public jThen getConsequentAt(int index)

Get the logic block at the index and return the consequent (i.e. result of having executed the logic block.)

Parameters:

index -

Returns:

getResultAt

public Object getResultAt(int consequentIndex,
                          int resultIndex)

Fetches the consequent at consequentIndex then grabs the list at resultIndex (since consequents have lists of results) and returns the object.

Parameters:

consequentIndex -

resultIndex -

Returns:

hasConsequentAt

public boolean hasConsequentAt(int index)

getFunctorMapEntry

public List<JFunctor> getFunctorMapEntry(String key)

getLogicBlocks

public LogicBlocks<? extends LogicBlock> getLogicBlocks()

execute

public void execute()

gotComma

public void gotComma(CommaEvent commaEvent)

Specified by:

gotComma in interface CommaListener

openDelimiter

public void openDelimiter(DelimiterEvent delimeterEvent)

Specified by:

openDelimiter in interface DelimiterListener

Overrides:

openDelimiter in class AbstractHandler

closeDelimiter

public void closeDelimiter(DelimiterEvent delimeterEvent)

Specified by:

closeDelimiter in interface DelimiterListener

Overrides:

closeDelimiter in class AbstractHandler

reset

public void reset()

Specified by:

reset in interface DelimiterListener

Overrides:

reset in class AbstractHandler