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AssociationFromLinkExpressionEvaluatorFactory.java
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AssociationFromLinkExpressionEvaluatorFactory.java
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/*
* Copyright (c) 2014-2016 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.evaluator;
import java.util.Collection;
import javax.xml.bind.JAXBElement;
import javax.xml.namespace.QName;
import com.evolveum.midpoint.model.api.ModelService;
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.PrismContainerDefinition;
import com.evolveum.midpoint.prism.PrismContext;
import com.evolveum.midpoint.prism.PrismValue;
import com.evolveum.midpoint.prism.crypto.Protector;
import com.evolveum.midpoint.schema.result.OperationResult;
import com.evolveum.midpoint.schema.util.ObjectResolver;
import com.evolveum.midpoint.task.api.Task;
import com.evolveum.midpoint.util.exception.SchemaException;
import com.evolveum.midpoint.xml.ns._public.common.common_3.AssociationFromLinkExpressionEvaluatorType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.ObjectFactory;
import com.evolveum.midpoint.xml.ns._public.common.common_3.ShadowAssociationType;
import org.apache.commons.lang.Validate;
/**
* @author semancik
*
*/
public class AssociationFromLinkExpressionEvaluatorFactory implements ExpressionEvaluatorFactory {
private PrismContext prismContext;
private Protector protector;
private ObjectResolver objectResolver;
private ModelService modelService;
public AssociationFromLinkExpressionEvaluatorFactory(PrismContext prismContext, Protector protector, ObjectResolver objectResolver, ModelService modelService) {
super();
this.prismContext = prismContext;
this.protector = protector;
this.objectResolver = objectResolver;
this.modelService = modelService;
}
/* (non-Javadoc)
* @see com.evolveum.midpoint.common.expression.ExpressionEvaluatorFactory#getElementName()
*/
@Override
public QName getElementName() {
return new ObjectFactory().createAssociationFromLink(new AssociationFromLinkExpressionEvaluatorType()).getName();
}
/* (non-Javadoc)
* @see com.evolveum.midpoint.common.expression.ExpressionEvaluatorFactory#createEvaluator(javax.xml.bind.JAXBElement)
*/
@Override
public <V extends PrismValue,D extends ItemDefinition> ExpressionEvaluator<V,D> createEvaluator(Collection<JAXBElement<?>> evaluatorElements,
D outputDefinition, String contextDescription, Task task, OperationResult result) throws SchemaException {
Validate.notNull(outputDefinition, "output definition must be specified for associationFromLink expression evaluator");
JAXBElement<?> evaluatorElement = null;
if (evaluatorElements != null) {
if (evaluatorElements.size() > 1) {
throw new SchemaException("More than one evaluator specified in "+contextDescription);
}
evaluatorElement = evaluatorElements.iterator().next();
}
Object evaluatorTypeObject = null;
if (evaluatorElement != null) {
evaluatorTypeObject = evaluatorElement.getValue();
}
if (evaluatorTypeObject != null && !(evaluatorTypeObject instanceof AssociationFromLinkExpressionEvaluatorType)) {
throw new SchemaException("Association expression evaluator cannot handle elements of type " + evaluatorTypeObject.getClass().getName()+" in "+contextDescription);
}
AssociationFromLinkExpressionEvaluator evaluator = new AssociationFromLinkExpressionEvaluator(
(AssociationFromLinkExpressionEvaluatorType)evaluatorTypeObject,
(PrismContainerDefinition<ShadowAssociationType>) outputDefinition, objectResolver, prismContext);
return (ExpressionEvaluator<V,D>) evaluator;
}
}