| /******************************************************************************* |
| * 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.aas.factory.json; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.stream.Collectors; |
| |
| import org.eclipse.basyx.aas.metamodel.map.AssetAdministrationShell; |
| import org.eclipse.basyx.aas.metamodel.map.parts.Asset; |
| import org.eclipse.basyx.submodel.metamodel.facade.SubmodelElementMapCollectionConverter; |
| import org.eclipse.basyx.submodel.metamodel.map.Submodel; |
| import org.eclipse.basyx.submodel.metamodel.map.parts.ConceptDescription; |
| import org.eclipse.basyx.vab.coder.json.serialization.DefaultTypeFactory; |
| import org.eclipse.basyx.vab.coder.json.serialization.GSONTools; |
| |
| /** |
| * This class can be used to build JSON from Metamodel Objects |
| * |
| * @author conradi |
| * |
| */ |
| public class MetamodelToJSONConverter { |
| |
| public static final String ASSET_ADMINISTRATION_SHELLS = "assetAdministrationShells"; |
| public static final String SUBMODELS = "submodels"; |
| public static final String ASSETS = "assets"; |
| public static final String CONCEPT_DESCRIPTIONS = "conceptDescriptions"; |
| |
| /** |
| * Builds the JSON for the given metamodel Objects. |
| * Not required parameters can be null. |
| * |
| * @param aasList the AASs to build the JSON for |
| * @param assetList the Assets to build the JSON for |
| * @param conceptDescriptionList the ConceptDescriptions to build the JSON for |
| * @param submodelList the Submodels to build the JSON for |
| */ |
| public static String convertToJSON(Collection<AssetAdministrationShell> aasList, Collection<Asset> assetList, |
| Collection<ConceptDescription> conceptDescriptionList, Collection<Submodel> submodelList) { |
| |
| // The Submodel-Object holds SubmodelElements in a Map<IdShort, SMElement> |
| // The JSON-Schema requires the SubmodelElements to be in a List |
| // This conversion is done by converting the sm to a Map |
| List<Object> smMapList; |
| if(submodelList != null) { |
| smMapList = submodelList.stream() |
| .map(sm -> SubmodelElementMapCollectionConverter.smToMap(sm)).collect(Collectors.toList()); |
| } else { |
| smMapList = new ArrayList<>(); |
| } |
| |
| |
| Map<String, Object> root = new HashMap<>(); |
| |
| root.put(ASSET_ADMINISTRATION_SHELLS, aasList==null ? new ArrayList<AssetAdministrationShell>() : aasList); |
| root.put(SUBMODELS, smMapList); |
| root.put(ASSETS, assetList==null ? new ArrayList<Asset>() : assetList); |
| root.put(CONCEPT_DESCRIPTIONS, conceptDescriptionList==null ? new ArrayList<ConceptDescription>() : conceptDescriptionList); |
| |
| return new GSONTools(new DefaultTypeFactory()).serialize(root); |
| } |
| } |