| /******************************************************************************* |
| * Copyright (C) 2021 the Eclipse BaSyx Authors |
| * |
| * This program and the accompanying materials are made |
| * available under the terms of the Eclipse Public License 2.0 |
| * which is available at https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| ******************************************************************************/ |
| package org.eclipse.basyx.submodel.metamodel.map.submodelelement.relationship; |
| |
| import java.util.Map; |
| |
| import org.eclipse.basyx.aas.metamodel.exception.MetamodelConstructionException; |
| import org.eclipse.basyx.submodel.metamodel.api.reference.IReference; |
| import org.eclipse.basyx.submodel.metamodel.api.reference.enums.KeyElements; |
| import org.eclipse.basyx.submodel.metamodel.api.submodelelement.relationship.IRelationshipElement; |
| import org.eclipse.basyx.submodel.metamodel.map.modeltype.ModelType; |
| import org.eclipse.basyx.submodel.metamodel.map.reference.Reference; |
| import org.eclipse.basyx.submodel.metamodel.map.submodelelement.SubmodelElement; |
| |
| /** |
| * RelationshipElement as defined in DAAS document <br/> |
| * A relationship element is used to define a relationship between two referable |
| * elements. |
| * |
| * |
| * @author schnicke |
| * |
| */ |
| public class RelationshipElement extends SubmodelElement implements IRelationshipElement { |
| public static final String FIRST = "first"; |
| public static final String SECOND = "second"; |
| public static final String MODELTYPE = "RelationshipElement"; |
| |
| /** |
| * Constructor |
| */ |
| public RelationshipElement() { |
| // Add model type |
| putAll(new ModelType(MODELTYPE)); |
| } |
| |
| /** |
| * |
| * @param first |
| * First element in the relationship taking the role of the subject. |
| * @param second |
| * Second element in the relationship taking the role of the object. |
| */ |
| public RelationshipElement(IReference first, IReference second) { |
| // Add model type |
| putAll(new ModelType(MODELTYPE)); |
| |
| put(FIRST, first); |
| put(SECOND, second); |
| } |
| |
| /** |
| * Constructor with only mandatory attributes |
| * @param idShort |
| * @param first |
| * @param second |
| */ |
| public RelationshipElement(String idShort, IReference first, IReference second) { |
| this(first, second); |
| setIdShort(idShort); |
| } |
| |
| /** |
| * Creates a RelationshipElement object from a map |
| * |
| * @param obj a RelationshipElement object as raw map |
| * @return a RelationshipElement object, that behaves like a facade for the given map |
| */ |
| public static RelationshipElement createAsFacade(Map<String, Object> obj) { |
| if (obj == null) { |
| return null; |
| } |
| |
| if (!isValid(obj)) { |
| throw new MetamodelConstructionException(RelationshipElement.class, obj); |
| } |
| |
| |
| RelationshipElement ret = new RelationshipElement(); |
| ret.setMap(obj); |
| return ret; |
| } |
| |
| /** |
| * Check whether all mandatory elements for the metamodel |
| * exist in a map |
| * @return true/false |
| */ |
| @SuppressWarnings("unchecked") |
| public static boolean isValid(Map<String, Object> obj) { |
| return SubmodelElement.isValid(obj) && |
| obj.containsKey(FIRST) && |
| obj.containsKey(SECOND) && |
| Reference.isValid((Map<String, Object>)obj.get(FIRST)) && |
| Reference.isValid((Map<String, Object>)obj.get(SECOND)); |
| } |
| |
| /** |
| * Returns true if the given submodel element map is recognized as a RelationshipElement |
| */ |
| public static boolean isRelationshipElement(Map<String, Object> map) { |
| String modelType = ModelType.createAsFacade(map).getName(); |
| // Either model type is set or the element type specific attributes are contained |
| return MODELTYPE.equals(modelType) || (modelType == null && map.containsKey(FIRST) && map.containsKey(SECOND)); |
| } |
| |
| public void setFirst(IReference first) { |
| put(RelationshipElement.FIRST, first); |
| |
| } |
| |
| @SuppressWarnings("unchecked") |
| public IReference getFirst() { |
| return Reference.createAsFacade((Map<String, Object>) get(RelationshipElement.FIRST)); |
| } |
| |
| public void setSecond(IReference second) { |
| put(RelationshipElement.SECOND, second); |
| |
| } |
| |
| @SuppressWarnings("unchecked") |
| public IReference getSecond() { |
| return Reference.createAsFacade((Map<String, Object>) get(RelationshipElement.SECOND)); |
| } |
| |
| @Override |
| protected KeyElements getKeyElement() { |
| return KeyElements.RELATIONSHIPELEMENT; |
| } |
| |
| @Override |
| public RelationshipElementValue getValue() { |
| return new RelationshipElementValue(getFirst(), getSecond()); |
| } |
| |
| @SuppressWarnings("unchecked") |
| @Override |
| public void setValue(Object value) { |
| if(RelationshipElementValue.isRelationshipElementValue(value)) { |
| RelationshipElementValue rev = |
| RelationshipElementValue.createAsFacade((Map<String, Object>) value); |
| setValue(rev); |
| } else { |
| throw new IllegalArgumentException("Given Object is not an RelationshipElementValue"); |
| } |
| } |
| |
| @Override |
| public RelationshipElement getLocalCopy() { |
| // Return a shallow copy |
| RelationshipElement copy = new RelationshipElement(); |
| copy.putAll(this); |
| return copy; |
| } |
| |
| @Override |
| public void setValue(RelationshipElementValue value) { |
| setFirst(value.getFirst()); |
| setSecond(value.getSecond()); |
| } |
| } |