Package com.evolveum.midpoint.model.common.expression.script.mel

Class MelScriptEvaluator

java.lang.Object

com.evolveum.midpoint.model.common.expression.script.AbstractScriptEvaluator

com.evolveum.midpoint.model.common.expression.script.AbstractCachingScriptEvaluator<dev.cel.runtime.CelRuntime,dev.cel.common.CelAbstractSyntaxTree,CelScriptCacheKey>

com.evolveum.midpoint.model.common.expression.script.mel.MelScriptEvaluator

All Implemented Interfaces:

ScriptEvaluator

public class MelScriptEvaluator
extends AbstractCachingScriptEvaluator<dev.cel.runtime.CelRuntime,dev.cel.common.CelAbstractSyntaxTree,CelScriptCacheKey>

Expression evaluator that is using MidPoint Expression Language (MEL). MidPoint Expression Language (MEL) is based on Common Expression Language (CEL), extended with midPoint-specific functionality.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	LANGUAGE_NAME
static final String	LANGUAGE_URL

Constructor Summary

Constructors

Constructor	Description
MelScriptEvaluator(PrismContext prismContext, Protector protector, LocalizationService localizationService, BasicExpressionFunctions basicExpressionFunctions, MidpointFunctions midpointExpressionFunctions)	Called by Spring but also by lower-level tests

Method Summary

Modifier and Type	Method	Description
protected dev.cel.common.CelAbstractSyntaxTree	compileScript(String codeString, ScriptExpressionEvaluationContext context)
protected dev.cel.runtime.CelRuntime	createInterpreter(ScriptExpressionEvaluationContext context)
protected boolean	doesSupportRestrictions()
protected Object	evaluateScript(dev.cel.common.CelAbstractSyntaxTree compiledScript, ScriptExpressionEvaluationContext context)
String	getLanguageName()	Returns human readable name of the language that this evaluator supports
@NotNull String	getLanguageUrl()	Returns (canonical) URL of the language that this evaluator can handle
protected CelScriptCacheKey	getScriptCachingKey(String codeString, ScriptExpressionEvaluationContext context)
protected boolean	needsServiceVariables()
protected boolean	supportsDeprecatedVariables()

Methods inherited from class com.evolveum.midpoint.model.common.expression.script.AbstractCachingScriptEvaluator

evaluateInternal, getInterpreter, getScriptCache

Methods inherited from class com.evolveum.midpoint.model.common.expression.script.AbstractScriptEvaluator

evaluate, getLocalizationService, getPrismContext, getProtector, prepareFunctionLibraryMap, prepareScriptVariablesMap, prepareScriptVariablesTypedValueMap, prepareUnifiedScriptVariablesValueMap

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.evolveum.midpoint.model.common.expression.script.ScriptEvaluator

isInitialized

Field Details

LANGUAGE_NAME

public static final String LANGUAGE_NAME

See Also:

• Constant Field Values

LANGUAGE_URL

public static final String LANGUAGE_URL

See Also:

• Constant Field Values

Constructor Details

MelScriptEvaluator

public MelScriptEvaluator(PrismContext prismContext,
 Protector protector,
 LocalizationService localizationService,
 BasicExpressionFunctions basicExpressionFunctions,
 MidpointFunctions midpointExpressionFunctions)

Called by Spring but also by lower-level tests

Method Details

getLanguageName

public String getLanguageName()

Description copied from interface: ScriptEvaluator

Returns human readable name of the language that this evaluator supports

getLanguageUrl

@NotNull
public @NotNull String getLanguageUrl()

Description copied from interface: ScriptEvaluator

Returns (canonical) URL of the language that this evaluator can handle

doesSupportRestrictions

protected boolean doesSupportRestrictions()

Overrides:

doesSupportRestrictions in class AbstractScriptEvaluator

needsServiceVariables

protected boolean needsServiceVariables()

Overrides:

needsServiceVariables in class AbstractScriptEvaluator

supportsDeprecatedVariables

protected boolean supportsDeprecatedVariables()

Overrides:

supportsDeprecatedVariables in class AbstractScriptEvaluator

compileScript

protected dev.cel.common.CelAbstractSyntaxTree compileScript(String codeString,
 ScriptExpressionEvaluationContext context)
                                                      throws ExpressionEvaluationException,
SecurityViolationException

Specified by:

compileScript in class AbstractCachingScriptEvaluator<dev.cel.runtime.CelRuntime,dev.cel.common.CelAbstractSyntaxTree,CelScriptCacheKey>

Throws:

ExpressionEvaluationException

SecurityViolationException

getScriptCachingKey

protected CelScriptCacheKey getScriptCachingKey(String codeString,
 ScriptExpressionEvaluationContext context)
                                         throws SchemaException,
ExpressionEvaluationException,
CommunicationException,
SecurityViolationException,
ConfigurationException,
ObjectNotFoundException

Specified by:

getScriptCachingKey in class AbstractCachingScriptEvaluator<dev.cel.runtime.CelRuntime,dev.cel.common.CelAbstractSyntaxTree,CelScriptCacheKey>

Throws:

SchemaException

ExpressionEvaluationException

CommunicationException

SecurityViolationException

ConfigurationException

ObjectNotFoundException

evaluateScript

protected Object evaluateScript(dev.cel.common.CelAbstractSyntaxTree compiledScript,
 ScriptExpressionEvaluationContext context)
                         throws Exception

Specified by:

evaluateScript in class AbstractCachingScriptEvaluator<dev.cel.runtime.CelRuntime,dev.cel.common.CelAbstractSyntaxTree,CelScriptCacheKey>

Throws:

Exception

createInterpreter

protected dev.cel.runtime.CelRuntime createInterpreter(ScriptExpressionEvaluationContext context)
                                                throws ConfigurationException

Specified by:

createInterpreter in class AbstractCachingScriptEvaluator<dev.cel.runtime.CelRuntime,dev.cel.common.CelAbstractSyntaxTree,CelScriptCacheKey>

Throws:

ConfigurationException