/*******************************************************************************
 * Copyright (c) 2019 Association for Decentralized Information Management
 * in Industry THTH ry.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Semantum oy - initial API and implementation
 *******************************************************************************/
package org.simantics.objmap.graph.annotations.factories;

import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.util.Collection;

import org.simantics.db.ReadGraph;
import org.simantics.db.Resource;
import org.simantics.db.exception.ResourceNotFoundException;
import org.simantics.db.exception.ServiceException;
import org.simantics.db.exception.ValidationException;
import org.simantics.objmap.bidirectional.IBidirectionalMappingRule;
import org.simantics.objmap.graph.annotations.LinkedList;
import org.simantics.objmap.graph.rules.MappedElementsRule;
import org.simantics.objmap.graph.rules.domain.LinkedListAccessor;
import org.simantics.objmap.graph.rules.factory.IFieldRuleFactory;
import org.simantics.objmap.graph.rules.range.FieldAccessor;

public class LinkedListRuleFactory<Range> implements IFieldRuleFactory<Resource, Range> {

    @Override
    public IBidirectionalMappingRule<Resource, Range> create(ReadGraph g, Annotation _annotation, Field field) throws ResourceNotFoundException, ValidationException, ServiceException {
        LinkedList annotation = (LinkedList)_annotation;
        return new MappedElementsRule<Resource,Range>(
                new LinkedListAccessor(g.getResource(annotation.value()), g.getResource(annotation.type()), annotation.composition()),
                new FieldAccessor<Range,Collection<Range>>(field)
            );
    }

}