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ScriptExpressionEvaluator.java
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ScriptExpressionEvaluator.java
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/*
* Copyright (c) 2010-2019 Evolveum and contributors
*
* This work is dual-licensed under the Apache License 2.0
* and European Union Public License. See LICENSE file for details.
*/
package com.evolveum.midpoint.model.common.expression.script;
import java.util.List;
import javax.xml.namespace.QName;
import com.evolveum.midpoint.common.LocalizationService;
import com.evolveum.midpoint.model.common.expression.evaluator.transformation.AbstractValueTransformationExpressionEvaluator;
import com.evolveum.midpoint.prism.ItemDefinition;
import com.evolveum.midpoint.prism.PrismContext;
import com.evolveum.midpoint.prism.PrismValue;
import com.evolveum.midpoint.prism.crypto.Protector;
import com.evolveum.midpoint.prism.delta.PlusMinusZero;
import com.evolveum.midpoint.repo.common.expression.ExpressionEvaluationContext;
import com.evolveum.midpoint.repo.common.expression.ExpressionVariables;
import com.evolveum.midpoint.schema.result.OperationResult;
import com.evolveum.midpoint.security.api.SecurityContextManager;
import com.evolveum.midpoint.task.api.Task;
import com.evolveum.midpoint.util.exception.CommunicationException;
import com.evolveum.midpoint.util.exception.ConfigurationException;
import com.evolveum.midpoint.util.exception.ExpressionEvaluationException;
import com.evolveum.midpoint.util.exception.ObjectNotFoundException;
import com.evolveum.midpoint.util.exception.SchemaException;
import com.evolveum.midpoint.util.exception.SecurityViolationException;
import com.evolveum.midpoint.xml.ns._public.common.common_3.ScriptExpressionEvaluatorType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.ScriptExpressionReturnTypeType;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
/**
* Executes specified script written e.g. in Groovy, JavaScript, Python, etc. Velocity template language is supported as well.
*
* @author Radovan Semancik
*/
public class ScriptExpressionEvaluator<V extends PrismValue,D extends ItemDefinition>
extends AbstractValueTransformationExpressionEvaluator<V,D,ScriptExpressionEvaluatorType> {
private final ScriptExpression scriptExpression;
ScriptExpressionEvaluator(QName elementName, ScriptExpressionEvaluatorType scriptType, D outputDefinition, Protector protector, PrismContext prismContext,
ScriptExpression scriptExpression,
SecurityContextManager securityContextManager, LocalizationService localizationService) {
super(elementName, scriptType, outputDefinition, protector, prismContext, securityContextManager, localizationService);
this.scriptExpression = scriptExpression;
}
@Override
protected void checkEvaluatorProfile(ExpressionEvaluationContext context) {
// Do nothing here. The profile will be checked inside ScriptExpression.
}
@Override
@NotNull
protected List<V> transformSingleValue(ExpressionVariables variables, PlusMinusZero valueDestination, boolean useNew,
ExpressionEvaluationContext eCtx, String contextDescription, Task task, OperationResult result)
throws ExpressionEvaluationException, ObjectNotFoundException, SchemaException, CommunicationException, ConfigurationException, SecurityViolationException {
scriptExpression.setAdditionalConvertor(eCtx.getAdditionalConvertor());
ScriptExpressionEvaluationContext sCtx = new ScriptExpressionEvaluationContext();
sCtx.setVariables(variables);
sCtx.setSuggestedReturnType(getReturnType());
sCtx.setEvaluateNew(useNew);
sCtx.setContextDescription(contextDescription);
sCtx.setAdditionalConvertor(eCtx.getAdditionalConvertor());
sCtx.setTask(task);
sCtx.setResult(result);
return scriptExpression.evaluate(sCtx);
}
@Nullable
private ScriptExpressionReturnTypeType getReturnType() {
ScriptExpressionReturnTypeType explicitReturnType = expressionEvaluatorBean.getReturnType();
if (explicitReturnType != null) {
return explicitReturnType;
} else if (isRelative()) {
return ScriptExpressionReturnTypeType.SCALAR;
} else {
return null;
}
}
@Override
public String shortDebugDump() {
return "script: "+scriptExpression.toString();
}
}