com.evolveum.midpoint.model.common.expression.evaluator.AssociationTargetSearchExpressionEvaluatorFactory.java Source code

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Here is the source code for com.evolveum.midpoint.model.common.expression.evaluator.AssociationTargetSearchExpressionEvaluatorFactory.java

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/*
 * Copyright (c) 2014-2015 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.security.api.SecurityEnforcer;
import com.evolveum.midpoint.task.api.Task;
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.SearchObjectExpressionEvaluatorType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.ShadowAssociationType;

import org.apache.commons.lang.Validate;

/**
 * @author semancik
 *
 */
public class AssociationTargetSearchExpressionEvaluatorFactory implements ExpressionEvaluatorFactory {

    private PrismContext prismContext;
    private Protector protector;
    private ObjectResolver objectResolver;
    private ModelService modelService;
    private SecurityEnforcer securityEnforcer;

    public AssociationTargetSearchExpressionEvaluatorFactory(PrismContext prismContext, Protector protector,
            ObjectResolver objectResolver, ModelService modelService, SecurityEnforcer securityEnforcer) {
        super();
        this.prismContext = prismContext;
        this.protector = protector;
        this.objectResolver = objectResolver;
        this.modelService = modelService;
        this.securityEnforcer = securityEnforcer;
    }

    /* (non-Javadoc)
     * @see com.evolveum.midpoint.common.expression.ExpressionEvaluatorFactory#getElementName()
     */
    @Override
    public QName getElementName() {
        return new ObjectFactory().createAssociationTargetSearch(new SearchObjectExpressionEvaluatorType())
                .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 associationTargetSearch 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 SearchObjectExpressionEvaluatorType)) {
            throw new SchemaException("Association expression evaluator cannot handle elements of type "
                    + evaluatorTypeObject.getClass().getName() + " in " + contextDescription);
        }
        AssociationTargetSearchExpressionEvaluator evaluator = new AssociationTargetSearchExpressionEvaluator(
                (SearchObjectExpressionEvaluatorType) evaluatorTypeObject,
                (PrismContainerDefinition<ShadowAssociationType>) outputDefinition, protector, objectResolver,
                modelService, prismContext, securityEnforcer);
        return (ExpressionEvaluator<V, D>) evaluator;
    }

}