Java tutorial
/*- * ============LICENSE_START======================================================= * SDC * ================================================================================ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved. * ================================================================================ * 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. * ============LICENSE_END========================================================= */ package org.openecomp.sdc.be.tosca; import java.io.StringReader; import java.util.HashMap; import java.util.List; import java.util.Map; import org.openecomp.sdc.be.datatypes.elements.SchemaDefinition; import org.openecomp.sdc.be.model.Component; import org.openecomp.sdc.be.model.DataTypeDefinition; import org.openecomp.sdc.be.model.PropertyDefinition; import org.openecomp.sdc.be.model.Resource; import org.openecomp.sdc.be.model.tosca.ToscaPropertyType; import org.openecomp.sdc.be.model.tosca.converters.ToscaMapValueConverter; import org.openecomp.sdc.be.model.tosca.converters.ToscaValueConverter; import org.openecomp.sdc.be.tosca.model.EntrySchema; import org.openecomp.sdc.be.tosca.model.ToscaNodeType; import org.openecomp.sdc.be.tosca.model.ToscaProperty; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.google.gson.JsonElement; import com.google.gson.JsonParser; import com.google.gson.JsonSyntaxException; import com.google.gson.stream.JsonReader; import fj.data.Either; public class PropertyConvertor { private static PropertyConvertor instance; private JsonParser jsonParser = new JsonParser(); private static Logger log = LoggerFactory.getLogger(PropertyConvertor.class.getName()); protected PropertyConvertor() { } public static synchronized PropertyConvertor getInstance() { if (instance == null) { instance = new PropertyConvertor(); } return instance; } public Either<ToscaNodeType, ToscaError> convertProperties(Component component, ToscaNodeType toscaNodeType, Map<String, DataTypeDefinition> dataTypes) { if (component instanceof Resource) { Resource resource = (Resource) component; List<PropertyDefinition> props = resource.getProperties(); if (props != null) { Map<String, ToscaProperty> properties = new HashMap<>(); // take only the properties of this resource props.stream().filter(p -> component.getUniqueId().equals(p.getParentUniqueId())) .forEach(property -> { ToscaProperty prop = convertProperty(dataTypes, property, false); properties.put(property.getName(), prop); }); if (!properties.isEmpty()) { toscaNodeType.setProperties(properties); } } } return Either.left(toscaNodeType); } public ToscaProperty convertProperty(Map<String, DataTypeDefinition> dataTypes, PropertyDefinition property, boolean isCapabiltyProperty) { ToscaProperty prop = new ToscaProperty(); String innerType = null; SchemaDefinition schema = property.getSchema(); if (schema != null && schema.getProperty() != null && schema.getProperty().getType() != null && !schema.getProperty().getType().isEmpty()) { innerType = schema.getProperty().getType(); EntrySchema eschema = new EntrySchema(); eschema.setType(innerType); eschema.setDescription(schema.getProperty().getDescription()); prop.setEntry_schema(eschema); } log.debug("try to convert property {} from type {} with default value {}", property.getName(), property.getType(), property.getDefaultValue()); prop.setDefaultp( convertToToscaObject(property.getType(), property.getDefaultValue(), innerType, dataTypes)); prop.setType(property.getType()); prop.setDescription(property.getDescription()); if (isCapabiltyProperty) { prop.setStatus(property.getStatus()); prop.setRequired(property.isRequired()); } return prop; } public Object convertToToscaObject(String propertyType, String value, String innerType, Map<String, DataTypeDefinition> dataTypes) { log.debug("try to convert propertyType {} , value {}, innerType {}", propertyType, value, innerType); if (value == null) { return value; } ToscaMapValueConverter mapConverterInst = ToscaMapValueConverter.getInstance(); ToscaValueConverter innerConverter = null; Boolean isScalar = true; ToscaPropertyType type = ToscaPropertyType.isValidType(propertyType); if (type == null) { log.debug("isn't prederfined type, get from all data types"); DataTypeDefinition dataTypeDefinition = dataTypes.get(propertyType); if (innerType == null) { innerType = propertyType; } if ((type = mapConverterInst.isScalarType(dataTypeDefinition)) != null) { log.debug("This is scalar type. get suitable converter for type {}", type); innerConverter = type.getValueConverter(); } else { isScalar = false; } } else { ToscaPropertyType typeIfScalar = ToscaPropertyType.getTypeIfScalar(type.getType()); if (typeIfScalar == null) { isScalar = false; } innerConverter = type.getValueConverter(); if (ToscaPropertyType.STRING.equals(type) && value.startsWith("/")) { return innerConverter.convertToToscaValue(value, innerType, dataTypes); } } JsonElement jsonElement = null; try { StringReader reader = new StringReader(value); JsonReader jsonReader = new JsonReader(reader); jsonReader.setLenient(true); jsonElement = jsonParser.parse(jsonReader); if (value.equals("")) { return value; } if (jsonElement.isJsonPrimitive() && isScalar) { log.debug("It's well defined type. convert it"); ToscaValueConverter converter = type.getValueConverter(); return converter.convertToToscaValue(value, innerType, dataTypes); } else { log.debug("It's data type or inputs in primitive type. convert as map"); Object convertedValue; if (innerConverter != null && (ToscaPropertyType.MAP.equals(type) || ToscaPropertyType.LIST.equals(type))) { convertedValue = innerConverter.convertToToscaValue(value, innerType, dataTypes); } else { if (isScalar) { // complex json for scalar type convertedValue = mapConverterInst.handleComplexJsonValue(jsonElement); } else { if (innerConverter != null) { convertedValue = innerConverter.convertToToscaValue(value, innerType, dataTypes); } else { convertedValue = mapConverterInst.convertDataTypeToToscaMap(innerType, dataTypes, innerConverter, isScalar, jsonElement); } } } return convertedValue; } } catch (JsonSyntaxException e) { log.debug("convertToToscaValue failed to parse json value :", e); return null; } } }