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ScriptExpressionEvaluatorFactory.java
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ScriptExpressionEvaluatorFactory.java
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/*
* Copyright (c) 2010-2013 Evolveum
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.evolveum.midpoint.model.common.expression.script;
import java.util.Collection;
import javax.xml.bind.JAXBElement;
import javax.xml.namespace.QName;
import com.evolveum.midpoint.model.common.expression.ExpressionEvaluator;
import com.evolveum.midpoint.model.common.expression.ExpressionEvaluatorFactory;
import com.evolveum.midpoint.prism.ItemDefinition;
import com.evolveum.midpoint.prism.PrismValue;
import com.evolveum.midpoint.schema.result.OperationResult;
import com.evolveum.midpoint.security.api.SecurityEnforcer;
import com.evolveum.midpoint.util.exception.SchemaException;
import com.evolveum.midpoint.xml.ns._public.common.common_3.ObjectFactory;
import com.evolveum.midpoint.xml.ns._public.common.common_3.ScriptExpressionEvaluatorType;
/**
* @author semancik
*
*/
public class ScriptExpressionEvaluatorFactory implements ExpressionEvaluatorFactory {
private ScriptExpressionFactory scriptExpressionFactory;
private SecurityEnforcer securityEnforcer;
public ScriptExpressionEvaluatorFactory(ScriptExpressionFactory scriptExpressionFactory, SecurityEnforcer securityEnforcer) {
this.scriptExpressionFactory = scriptExpressionFactory;
this.securityEnforcer = securityEnforcer;
}
@Override
public QName getElementName() {
return new ObjectFactory().createScript(new ScriptExpressionEvaluatorType()).getName();
}
/* (non-Javadoc)
* @see com.evolveum.midpoint.common.expression.ExpressionEvaluatorFactory#createEvaluator(javax.xml.bind.JAXBElement, com.evolveum.midpoint.prism.ItemDefinition)
*/
@Override
public <V extends PrismValue> ExpressionEvaluator<V> createEvaluator(Collection<JAXBElement<?>> evaluatorElements,
ItemDefinition outputDefinition, String contextDescription, OperationResult result) throws SchemaException {
if (evaluatorElements.size() > 1) {
throw new SchemaException("More than one evaluator specified in "+contextDescription);
}
JAXBElement<?> evaluatorElement = evaluatorElements.iterator().next();
Object evaluatorElementObject = evaluatorElement.getValue();
if (!(evaluatorElementObject instanceof ScriptExpressionEvaluatorType)) {
throw new IllegalArgumentException("Script expression cannot handle elements of type " + evaluatorElementObject.getClass().getName());
}
ScriptExpressionEvaluatorType scriptType = (ScriptExpressionEvaluatorType) evaluatorElementObject;
ScriptExpression scriptExpression = scriptExpressionFactory.createScriptExpression(scriptType, outputDefinition, contextDescription);
return new ScriptExpressionEvaluator(scriptType, scriptExpression, securityEnforcer);
}
}