catalog-be/src/main/java/org/openecomp/sdc/be/tosca/PropertyConvertor.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * SDC
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.openecomp.sdc.be.tosca;
  22
  23 import java.io.StringReader;
  24 import java.util.HashMap;
  25 import java.util.List;
  26 import java.util.Map;
  27 import java.util.Map.Entry;
  28
  29 import org.apache.commons.lang3.StringUtils;
  30 import org.openecomp.sdc.be.datatypes.elements.SchemaDefinition;
  31 import org.openecomp.sdc.be.model.Component;
  32 import org.openecomp.sdc.be.model.DataTypeDefinition;
  33 import org.openecomp.sdc.be.model.PropertyDefinition;
  34 import org.openecomp.sdc.be.model.Resource;
  35 import org.openecomp.sdc.be.model.tosca.ToscaPropertyType;
  36 import org.openecomp.sdc.be.model.tosca.converters.ToscaMapValueConverter;
  37 import org.openecomp.sdc.be.model.tosca.converters.ToscaValueConverter;
  38 import org.openecomp.sdc.be.tosca.model.EntrySchema;
  39 import org.openecomp.sdc.be.tosca.model.ToscaNodeType;
  40 import org.openecomp.sdc.be.tosca.model.ToscaProperty;
  41 import org.slf4j.Logger;
  42 import org.slf4j.LoggerFactory;
  43
  44 import com.google.gson.Gson;
  45 import com.google.gson.JsonElement;
  46 import com.google.gson.JsonObject;
  47 import com.google.gson.JsonParser;
  48 import com.google.gson.JsonSyntaxException;
  49 import com.google.gson.stream.JsonReader;
  50
  51 import fj.data.Either;
  52
  53 public class PropertyConvertor {
  54         private static PropertyConvertor instance;
  55         private JsonParser jsonParser = new JsonParser();
  56         private static Logger log = LoggerFactory.getLogger(PropertyConvertor.class.getName());
  57         Gson gson = new Gson();
  58         protected PropertyConvertor() {
  59
  60         }
  61
  62         public static synchronized PropertyConvertor getInstance() {
  63                 if (instance == null) {
  64                         instance = new PropertyConvertor();
  65                 }
  66                 return instance;
  67         }
  68
  69         public Either<ToscaNodeType, ToscaError> convertProperties(Component component, ToscaNodeType toscaNodeType, Map<String, DataTypeDefinition> dataTypes) {
  70
  71                 if (component instanceof Resource) {
  72                         Resource resource = (Resource) component;
  73                         List<PropertyDefinition> props = resource.getProperties();
  74                         if (props != null) {
  75                                 Map<String, ToscaProperty> properties = new HashMap<>();
  76
  77                                 // take only the properties of this resource
  78                                 props.stream().filter(p -> p.getOwnerId() == null || p.getOwnerId().equals(component.getUniqueId())).forEach(property -> {
  79                                         ToscaProperty prop = convertProperty(dataTypes, property, false);
  80
  81                                         properties.put(property.getName(), prop);
  82                                 });
  83                                 if (!properties.isEmpty()) {
  84                                         toscaNodeType.setProperties(properties);
  85                                 }
  86                         }
  87                 }
  88                 return Either.left(toscaNodeType);
  89         }
  90
  91         public ToscaProperty convertProperty(Map<String, DataTypeDefinition> dataTypes, PropertyDefinition property, boolean isCapabiltyProperty) {
  92                 ToscaProperty prop = new ToscaProperty();
  93
  94                 String innerType = null;
  95                 SchemaDefinition schema = property.getSchema();
  96                 if (schema != null && schema.getProperty() != null && schema.getProperty().getType() != null && !schema.getProperty().getType().isEmpty()) {
  97                         innerType = schema.getProperty().getType();
  98                         EntrySchema eschema = new EntrySchema();
  99                         eschema.setType(innerType);
 100                         eschema.setDescription(schema.getProperty().getDescription());
 101                         prop.setEntry_schema(eschema);
 102                 }
 103                 log.trace("try to convert property {} from type {} with default value [{}]", property.getName(), property.getType(), property.getDefaultValue());
 104                 prop.setDefaultp(convertToToscaObject(property.getType(), property.getName(), property.getDefaultValue(), innerType, dataTypes));
 105                 prop.setType(property.getType());
 106                 prop.setDescription(property.getDescription());
 107                 if (isCapabiltyProperty) {
 108                         prop.setStatus(property.getStatus());
 109                         prop.setRequired(property.isRequired());
 110                 }
 111                 return prop;
 112         }
 113
 114         public Object convertToToscaObject(String propertyType, String propertyName, String value, String innerType, Map<String, DataTypeDefinition> dataTypes) {
 115                 log.trace("try to convert propertyType {} , value [{}], innerType {}", propertyType, value, innerType);
 116                 if (value == null) {
 117                         value = getDataTypeDefaultValue(propertyName, dataTypes.get(propertyType));
 118                         if(StringUtils.isEmpty(value)){
 119                                 return null;
 120                         }
 121
 122                 }
 123                 try {
 124                         ToscaMapValueConverter mapConverterInst = ToscaMapValueConverter.getInstance();
 125                         ToscaValueConverter innerConverter = null;
 126                         Boolean isScalar = true;
 127
 128                         ToscaPropertyType type = ToscaPropertyType.isValidType(propertyType);
 129                         if (type == null) {
 130                                 log.trace("isn't prederfined type, get from all data types");
 131                                 DataTypeDefinition dataTypeDefinition = dataTypes.get(propertyType);
 132                                 if (innerType == null) {
 133                                         innerType = propertyType;
 134                                 }
 135
 136                                 if ((type = mapConverterInst.isScalarType(dataTypeDefinition)) != null) {
 137                                         log.trace("This is scalar type. get suitable converter for type {}", type);
 138                                         innerConverter = type.getValueConverter();
 139                                 } else {
 140                                         isScalar = false;
 141                                 }
 142                         } else {
 143                                 ToscaPropertyType typeIfScalar = ToscaPropertyType.getTypeIfScalar(type.getType());
 144                                 if (typeIfScalar == null) {
 145                                         isScalar = false;
 146                                 }
 147
 148                                 innerConverter = type.getValueConverter();
 149                                 if (ToscaPropertyType.STRING.equals(type) && value.startsWith("/")) {
 150                                         return innerConverter.convertToToscaValue(value, innerType, dataTypes);
 151                                 }
 152                         }
 153                         JsonElement jsonElement = null;
 154
 155                         StringReader reader = new StringReader(value);
 156                         JsonReader jsonReader = new JsonReader(reader);
 157                         jsonReader.setLenient(true);
 158
 159                         jsonElement = jsonParser.parse(jsonReader);
 160
 161                         if (value.equals("")) {
 162                                 return value;
 163                         }
 164
 165                         if (jsonElement.isJsonPrimitive() && isScalar) {
 166                                 log.trace("It's well defined type. convert it");
 167                                 ToscaValueConverter converter = type.getValueConverter();
 168                                 return converter.convertToToscaValue(value, innerType, dataTypes);
 169                         } else {
 170                                 log.trace("It's data type or inputs in primitive type. convert as map");
 171                                 Object convertedValue;
 172                                 if (innerConverter != null && (ToscaPropertyType.MAP.equals(type) || ToscaPropertyType.LIST.equals(type))) {
 173                                         convertedValue = innerConverter.convertToToscaValue(value, innerType, dataTypes);
 174                                 } else {
 175                                         if (isScalar) {
 176                                                 // complex json for scalar type
 177                                                 convertedValue = mapConverterInst.handleComplexJsonValue(jsonElement);
 178                                         } else {
 179                                                 if (innerConverter != null) {
 180                                                         convertedValue = innerConverter.convertToToscaValue(value, innerType, dataTypes);
 181                                                 } else {
 182                                                         convertedValue = mapConverterInst.convertDataTypeToToscaObject(innerType, dataTypes, innerConverter, isScalar, jsonElement);
 183                                                 }
 184                                         }
 185                                 }
 186                                 return convertedValue;
 187                         }
 188
 189                 } catch (Exception e) {
 190                         log.debug("convertToToscaValue failed to parse json value :", e);
 191                         return null;
 192                 }
 193
 194         }
 195
 196         private String getDataTypeDefaultValue(String propertyName, DataTypeDefinition dataTypeDefinition) {
 197
 198                 String delaultValue = null;
 199                 JsonObject asJsonObjectIn = new JsonObject();
 200                 Map<String, PropertyDefinition> allParentsProps = new HashMap<>();
 201                 while (dataTypeDefinition != null) {
 202
 203                         List<PropertyDefinition> currentParentsProps = dataTypeDefinition.getProperties();
 204                         if (currentParentsProps != null) {
 205                                 currentParentsProps.stream().forEach(p -> allParentsProps.put(p.getName(), p));
 206                         }
 207
 208                         dataTypeDefinition = dataTypeDefinition.getDerivedFrom();
 209                 }
 210                 for (Entry<String, PropertyDefinition> entry : allParentsProps.entrySet()) {
 211                         String propName = entry.getKey();
 212                         PropertyDefinition propertyDefinition = entry.getValue();
 213                         JsonElement elementValue = asJsonObjectIn.get(propName);
 214                         if(elementValue == null && propertyDefinition.getDefaultValue() != null){
 215                                 JsonReader jsonReader = new JsonReader(new StringReader(propertyDefinition.getDefaultValue()));
 216                                 jsonReader.setLenient(true);
 217                                 elementValue = jsonParser.parse(jsonReader);
 218                                 asJsonObjectIn.add(propName, elementValue);
 219                         }
 220                 }
 221                 if(!asJsonObjectIn.isJsonNull()){
 222                         delaultValue = gson.toJson(asJsonObjectIn);
 223                 }
 224                 return delaultValue;
 225         }
 226
 227 }