Package net.shibboleth.utilities.java.support.logic

Class ScriptedBiFunction<T,U,V>

java.lang.Object

net.shibboleth.utilities.java.support.scripting.AbstractScriptEvaluator

net.shibboleth.utilities.java.support.logic.ScriptedBiFunction<T,U,V>

Type Parameters:

T - first input type

U - second input type

V - return type

All Implemented Interfaces:

BiFunction<T,U,V>

public class ScriptedBiFunction<T,U,V>
extends AbstractScriptEvaluator
implements BiFunction<T,U,V>

A BiFunction which calls out to a supplied script.

Since:

8.2.0

Field Summary

Fields

Modifier and Type	Field	Description
private Pair<Class<T>,Class<U>>	inputTypes	Input types.
private final org.slf4j.Logger	log	Class logger.

Fields inherited from class net.shibboleth.utilities.java.support.scripting.AbstractScriptEvaluator

DEFAULT_ENGINE

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ScriptedBiFunction(EvaluableScript theScript)	Constructor.
protected	ScriptedBiFunction(EvaluableScript theScript, String extraInfo)	Constructor.

Method Summary

Modifier and Type	Method	Description
V	apply(T first, U second)
Pair<Class<T>,Class<U>>	getInputTypes()	Get the input type to be enforced.
static <T, U, V> ScriptedBiFunction<T,U,V>	inlineScript(String scriptSource)	Factory to create ScriptedBiFunction from inline data.
static <T, U, V> ScriptedBiFunction<T,U,V>	inlineScript(String engineName, String scriptSource)	Factory to create ScriptedBiFunction from inline data.
protected void	prepareContext(ScriptContext scriptContext, Object... input)	Pre-process the script context before execution.
static <T, U, V> ScriptedBiFunction<T,U,V>	resourceScript(String engineName, Resource resource)	Factory to create ScriptedBiFunction from a Resource.
static <T, U, V> ScriptedBiFunction<T,U,V>	resourceScript(Resource resource)	Factory to create ScriptedBiFunction from a Resource.
void	setInputTypes(Pair<Class<T>,Class<U>> types)	Set the input types to be enforced.
void	setOutputType(Class<?> type)	Set the output type to be enforced.
void	setReturnOnError(Object value)	Set value to return if an error occurs.

Methods inherited from class net.shibboleth.utilities.java.support.scripting.AbstractScriptEvaluator

evaluate, finalizeContext, getCustomObject, getHideExceptions, getLogPrefix, getOutputType, getReturnOnError, setCustomObject, setHideExceptions, setLogPrefix

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.BiFunction

andThen

Field Details

log

@Nonnull
private final org.slf4j.Logger log

Class logger.

inputTypes

@Nullable
private Pair<Class<T>,Class<U>> inputTypes

Input types.

Constructor Details

ScriptedBiFunction

protected ScriptedBiFunction(@Nonnull @NotEmpty @ParameterName(name="theScript")
 EvaluableScript theScript,
 @Nullable @NotEmpty @ParameterName(name="extraInfo")
 String extraInfo)

Constructor.

Parameters:

theScript - the script we will evaluate.

extraInfo - debugging information.

ScriptedBiFunction

protected ScriptedBiFunction(@Nonnull @NotEmpty @ParameterName(name="theScript")
 EvaluableScript theScript)

Constructor.

Parameters:

theScript - the script we will evaluate.

Method Details

getInputTypes

@Nullable
public Pair<Class<T>,Class<U>> getInputTypes()

Get the input type to be enforced.

Returns:

input type

setInputTypes

public void setInputTypes(@Nullable
 Pair<Class<T>,Class<U>> types)

Set the input types to be enforced.

Parameters:

types - the input types

setOutputType

public void setOutputType(@Nullable
 Class<?> type)

Set the output type to be enforced.

Overrides:

setOutputType in class AbstractScriptEvaluator

Parameters:

type - output type

setReturnOnError

public void setReturnOnError(@Nullable
 Object value)

Set value to return if an error occurs.

Overrides:

setReturnOnError in class AbstractScriptEvaluator

Parameters:

value - value to return

apply

@Nullable
public V apply(@Nullable
 T first,
 @Nullable
 U second)

Specified by:

apply in interface BiFunction<T,U,V>

prepareContext

protected void prepareContext(@Nonnull
 ScriptContext scriptContext,
 @Nullable
 Object... input)

Pre-process the script context before execution.

Specified by:

prepareContext in class AbstractScriptEvaluator

Parameters:

scriptContext - the script context

input - the input

resourceScript

public static <T,
U,
V> ScriptedBiFunction<T,U,V> resourceScript(@Nonnull @NotEmpty
 String engineName,
 @Nonnull
 Resource resource)
                                                        throws ScriptException,
IOException

Factory to create ScriptedBiFunction from a Resource.

Type Parameters:

T - first input type

U - second input type

V - return type

Parameters:

resource - the resource to look at

engineName - the language

Returns:

the function

Throws:

ScriptException - if the compile fails

IOException - if the file doesn't exist.

resourceScript

public static <T,
U,
V> ScriptedBiFunction<T,U,V> resourceScript(Resource resource)
                                                        throws ScriptException,
IOException

Factory to create ScriptedBiFunction from a Resource.

Type Parameters:

T - first input type

U - second input type

V - return type

Parameters:

resource - the resource to look at

Returns:

the function

Throws:

ScriptException - if the compile fails

IOException - if the file doesn't exist.

inlineScript

public static <T,
U,
V> ScriptedBiFunction<T,U,V> inlineScript(@Nonnull @NotEmpty
 String engineName,
 @Nonnull @NotEmpty
 String scriptSource)
                                                      throws ScriptException

Factory to create ScriptedBiFunction from inline data.

Type Parameters:

T - first input type

U - second input type

V - return type

Parameters:

scriptSource - the script, as a string

engineName - the language

Returns:

the function

Throws:

ScriptException - if the compile fails

inlineScript

public static <T,
U,
V> ScriptedBiFunction<T,U,V> inlineScript(@Nonnull @NotEmpty
 String scriptSource)
                                                      throws ScriptException

Factory to create ScriptedBiFunction from inline data.

Type Parameters:

T - first input type

U - second input type

V - return type

Parameters:

scriptSource - the script, as a string

Returns:

the function

Throws:

ScriptException - if the compile fails