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.model.tosca.converters; import java.io.StringReader; import java.util.HashMap; import java.util.Map; import java.util.Map.Entry; import java.util.Set; import org.openecomp.sdc.be.config.BeEcompErrorManager; import org.openecomp.sdc.be.model.DataTypeDefinition; import org.openecomp.sdc.be.model.PropertyDefinition; import org.openecomp.sdc.be.model.tosca.ToscaPropertyType; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.google.gson.JsonElement; import com.google.gson.JsonObject; import com.google.gson.JsonParseException; import com.google.gson.JsonParser; import com.google.gson.JsonSyntaxException; import com.google.gson.stream.JsonReader; public class ToscaMapValueConverter extends ToscaValueBaseConverter implements ToscaValueConverter { private static ToscaMapValueConverter mapConverter = new ToscaMapValueConverter(); private JsonParser jsonParser = new JsonParser(); private static Logger log = LoggerFactory.getLogger(ToscaMapValueConverter.class.getName()); public static ToscaMapValueConverter getInstance() { return mapConverter; } private ToscaMapValueConverter() { } @Override public Object convertToToscaValue(String value, String innerType, Map<String, DataTypeDefinition> dataTypes) { if (value == null) { return value; } try { ToscaPropertyType innerToscaType = ToscaPropertyType.isValidType(innerType); ToscaValueConverter innerConverter = null; boolean isScalar = true; if (innerToscaType != null) { innerConverter = innerToscaType.getValueConverter(); } else { DataTypeDefinition dataTypeDefinition = dataTypes.get(innerType); if (dataTypeDefinition != null) { ToscaPropertyType toscaPropertyType = null; if ((toscaPropertyType = isScalarType(dataTypeDefinition)) != null) { innerConverter = toscaPropertyType.getValueConverter(); } else { isScalar = false; } } else { // TODO handle getinput log.debug("inner Tosca Type is null"); return value; } } JsonElement jsonElement = null; try { StringReader reader = new StringReader(value); JsonReader jsonReader = new JsonReader(reader); jsonReader.setLenient(true); jsonElement = jsonParser.parse(jsonReader); } catch (JsonSyntaxException e) { log.debug("convertToToscaValue failed to parse json value :", e); return null; } if (jsonElement == null || true == jsonElement.isJsonNull()) { log.debug("convertToToscaValue json element is null"); return null; } JsonObject asJsonObject = jsonElement.getAsJsonObject(); Set<Entry<String, JsonElement>> entrySet = asJsonObject.entrySet(); Map<String, Object> toscaMap = new HashMap<>(); final boolean isScalarF = isScalar; final ToscaValueConverter innerConverterFinal = innerConverter; entrySet.forEach(e -> { log.debug("try convert element {}", e.getValue()); Object convertedValue = convertDataTypeToToscaMap(innerType, dataTypes, innerConverterFinal, isScalarF, e.getValue()); toscaMap.put(e.getKey(), convertedValue); }); return toscaMap; } catch (JsonParseException e) { log.debug("Failed to parse json : {}. {}", value, e); BeEcompErrorManager.getInstance().logBeInvalidJsonInput("List Converter"); return null; } } public Object convertDataTypeToToscaMap(String innerType, Map<String, DataTypeDefinition> dataTypes, ToscaValueConverter innerConverter, final boolean isScalarF, JsonElement entryValue) { Object convertedValue = null; if (isScalarF && entryValue.isJsonPrimitive()) { log.debug("try convert scalar value {}", entryValue.getAsString()); if (entryValue.getAsString() == null) { convertedValue = null; } else { convertedValue = innerConverter.convertToToscaValue(entryValue.getAsString(), innerType, dataTypes); } } else { JsonObject asJsonObjectIn = entryValue.getAsJsonObject(); Set<Entry<String, JsonElement>> entrySetIn = asJsonObjectIn.entrySet(); DataTypeDefinition dataTypeDefinition = dataTypes.get(innerType); Map<String, PropertyDefinition> allProperties = getAllProperties(dataTypeDefinition); Map<String, Object> toscaObjectPresentation = new HashMap<>(); for (Entry<String, JsonElement> entry : entrySetIn) { String propName = entry.getKey(); JsonElement elementValue = entry.getValue(); Object convValue; if (isScalarF == false) { PropertyDefinition propertyDefinition = allProperties.get(propName); if (propertyDefinition == null && isScalarF) { log.debug("The property {} was not found under data type {}", propName, dataTypeDefinition.getName()); continue; } String type = propertyDefinition.getType(); ToscaPropertyType propertyType = ToscaPropertyType.isValidType(type); if (propertyType != null) { if (elementValue.isJsonPrimitive()) { ToscaValueConverter valueConverter = propertyType.getValueConverter(); convValue = valueConverter.convertToToscaValue(elementValue.getAsString(), type, dataTypes); } else { if (ToscaPropertyType.MAP.equals(type) || ToscaPropertyType.LIST.equals(propertyType)) { ToscaValueConverter valueConverter = propertyType.getValueConverter(); String json = gson.toJson(elementValue); String innerTypeRecursive = propertyDefinition.getSchema().getProperty().getType(); convValue = valueConverter.convertToToscaValue(json, innerTypeRecursive, dataTypes); } else { convValue = handleComplexJsonValue(elementValue); } } } else { convValue = convertToToscaValue(elementValue.getAsString(), type, dataTypes); } } else { if (elementValue.isJsonPrimitive()) { convValue = json2JavaPrimitive(elementValue.getAsJsonPrimitive()); } else { convValue = handleComplexJsonValue(elementValue); } } toscaObjectPresentation.put(propName, convValue); } convertedValue = toscaObjectPresentation; } return convertedValue; } }