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

Class EventDrivenParser

java.lang.Object

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

public class EventDrivenParser
extends Object

An event driven parser for functors. Note that this does allow for escape characters. Any single character preceeded by a backslash will be passed along unaltered.

Created by Jeff Gaynor
on 7/16/18 at 11:27 AM

Field Summary

Fields

Modifier and Type	Field	Description
boolean	debugOn
static char	escapeChar

Constructor Summary

Constructors

Constructor	Description
EventDrivenParser()
EventDrivenParser(JFunctorFactory functorFactory)	Create and initialize this parser.

Method Summary

Modifier and Type	Method	Description
void	addBraceListener(DelimiterListener d)
void	addBracketListener(DelimiterListener d)
void	addCommaListener(CommaListener c)
void	addDoubleQuoteListener(DoubleQuoteListener d)
void	addParenthesisListener(DelimiterListener d)
protected void	execute()
ConditionalHandler	getConditionalHandler()
JFunctor	getFunctor()
FunctorHandler	getFunctorHandler()
SwitchHandler	getSwitchHandler()
protected int	getType(String raw)	The parser is rather stupid on purpose.
boolean	hasConditional()
boolean	hasFunctor()
boolean	hasSwitch()
void	init(String raw)	If you prefer to create the SwitchHandler yourself, pass it in.
protected void	notifyCloseListeners(LinkedList<DelimiterListener> listeners, DelimiterEvent event)
protected void	notifyCommaListeners(LinkedList<CommaListener> listeners, CommaEvent event)
protected void	notifyDQListeners(LinkedList<DoubleQuoteListener> listeners, DoubleQuoteEvent event)
protected void	notifyOpenListeners(LinkedList<DelimiterListener> listeners, DelimiterEvent event)
AbstractHandler	parse(String input)
AbstractHandler	parse(String input, Map<String,String> replacements)	Parse a single line.
void	removeBraceListener(DelimiterListener d)
void	removeBracketListener(DelimiterListener d)
void	removeCommaListener(CommaListener c)
void	removeDQListener(DoubleQuoteListener d)
void	removeParenthesisListener(DelimiterListener d)
void	reset()	Completely reset the internal state of this parser.

Methods inherited from class java.lang.Object

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

Field Detail

escapeChar

public static final char escapeChar

See Also:

Constant Field Values

debugOn

public boolean debugOn

Constructor Detail

EventDrivenParser

public EventDrivenParser()

EventDrivenParser

public EventDrivenParser(JFunctorFactory functorFactory)

Create and initialize this parser.

Parameters:

functorFactory -

Method Detail

reset

public void reset()

Completely reset the internal state of this parser.

addBraceListener

public void addBraceListener(DelimiterListener d)

addCommaListener

public void addCommaListener(CommaListener c)

removeCommaListener

public void removeCommaListener(CommaListener c)

removeDQListener

public void removeDQListener(DoubleQuoteListener d)

removeBracketListener

public void removeBracketListener(DelimiterListener d)

removeBraceListener

public void removeBraceListener(DelimiterListener d)

removeParenthesisListener

public void removeParenthesisListener(DelimiterListener d)

addDoubleQuoteListener

public void addDoubleQuoteListener(DoubleQuoteListener d)

addBracketListener

public void addBracketListener(DelimiterListener d)

addParenthesisListener

public void addParenthesisListener(DelimiterListener d)

notifyOpenListeners

protected void notifyOpenListeners(LinkedList<DelimiterListener> listeners,
                                   DelimiterEvent event)

notifyCloseListeners

protected void notifyCloseListeners(LinkedList<DelimiterListener> listeners,
                                    DelimiterEvent event)

notifyCommaListeners

protected void notifyCommaListeners(LinkedList<CommaListener> listeners,
                                    CommaEvent event)

notifyDQListeners

protected void notifyDQListeners(LinkedList<DoubleQuoteListener> listeners,
                                 DoubleQuoteEvent event)

getSwitchHandler

public SwitchHandler getSwitchHandler()

getFunctorHandler

public FunctorHandler getFunctorHandler()

getConditionalHandler

public ConditionalHandler getConditionalHandler()

execute

protected void execute()

getFunctor

public JFunctor getFunctor()

init

public void init(String raw)

If you prefer to create the SwitchHandler yourself, pass it in. You can always get it back after parsing via getSwitchHandler().

Parameters:

raw -

getType

protected int getType(String raw)

The parser is rather stupid on purpose. It can evolve but for now, the strict format is all that is allowed. This method is a very simple-minded way to turn a simple functor or even simple conditional into something the parser understands. It should be amended, improved and replaced as time goes on.

Parameters:

raw -

Returns:

parse

public AbstractHandler parse(String input)

parse

public AbstractHandler parse(String input,
                             Map<String,String> replacements)

Parse a single line. If you supply a map of replacements with key-value pairs, then every occurance of the form ${key} will be replaced by its value. E.g. if

     key = vo
     value = voPersonExternalID
 

then the following transformation on the input line

     get("${vo}");
 

would result in the execution of

     get("voPersonExternalID");
 

You may set these values with the jsetEnv function in your script.

Parameters:

input -

replacements -

Returns:

hasSwitch

public boolean hasSwitch()

hasConditional

public boolean hasConditional()

hasFunctor

public boolean hasFunctor()