2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2021 Nordix Foundation
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 * SPDX-License-Identifier: Apache-2.0
17 * ============LICENSE_END=========================================================
19 package org.openecomp.sdc.be.tosca;
21 import com.google.gson.JsonElement;
22 import com.google.gson.JsonObject;
23 import com.google.gson.JsonParseException;
24 import com.google.gson.JsonParser;
25 import com.google.gson.stream.JsonReader;
26 import java.io.StringReader;
28 import org.apache.commons.lang3.StringUtils;
29 import org.onap.sdc.tosca.datatypes.model.EntrySchema;
30 import org.openecomp.sdc.be.model.AttributeDefinition;
31 import org.openecomp.sdc.be.model.DataTypeDefinition;
32 import org.openecomp.sdc.be.model.tosca.ToscaPropertyType;
33 import org.openecomp.sdc.be.model.tosca.converters.DataTypePropertyConverter;
34 import org.openecomp.sdc.be.model.tosca.converters.ToscaMapValueConverter;
35 import org.openecomp.sdc.be.tosca.exception.ToscaConversionException;
36 import org.openecomp.sdc.be.tosca.model.ToscaAttribute;
37 import org.openecomp.sdc.be.tosca.model.ToscaSchemaDefinition;
38 import org.openecomp.sdc.common.log.enums.EcompLoggerErrorCode;
39 import org.openecomp.sdc.common.log.wrappers.Logger;
40 import org.openecomp.sdc.tosca.datatypes.ToscaFunctions;
41 import org.springframework.beans.factory.config.BeanDefinition;
42 import org.springframework.context.annotation.Scope;
43 import org.springframework.stereotype.Component;
46 * Handles conversions between attribute objects.
49 @Scope(BeanDefinition.SCOPE_PROTOTYPE)
50 public class AttributeConverter {
52 private static final Logger LOGGER = Logger.getLogger(AttributeConverter.class);
53 private final Map<String, DataTypeDefinition> dataTypes;
54 private final ToscaMapValueConverter toscaMapValueConverter;
57 * Creates an {@link AttributeConverter} with all the required data types.
59 * @param dataTypes all the data types required for the conversion
61 public AttributeConverter(final Map<String, DataTypeDefinition> dataTypes) {
62 this.dataTypes = dataTypes;
63 toscaMapValueConverter = ToscaMapValueConverter.getInstance();
67 * Converts an {@link AttributeDefinition} to a {@link ToscaAttribute}.
69 * @param attributeDefinition the attribute definition to be converted
70 * @return the {@link ToscaAttribute} instance based on the the given {@link AttributeDefinition} instance
72 public ToscaAttribute convert(final AttributeDefinition attributeDefinition) throws ToscaConversionException {
73 final ToscaAttribute toscaAttribute = new ToscaAttribute();
74 LOGGER.trace("Converting attribute '{}' from type '{}' with default value '{}'", attributeDefinition.getName(), attributeDefinition.getType(),
75 attributeDefinition.getDefaultValue());
76 toscaAttribute.setEntrySchema(convert(attributeDefinition.getEntry_schema()));
77 toscaAttribute.setType(attributeDefinition.getType());
78 toscaAttribute.setDescription(attributeDefinition.getDescription());
79 toscaAttribute.setStatus(attributeDefinition.getStatus());
80 final Object defaultValue = convertToToscaObject(attributeDefinition.getName(), attributeDefinition.getType(),
81 attributeDefinition.getDefaultValue(), attributeDefinition.getEntry_schema(), false);
82 if (defaultValue != null) {
83 toscaAttribute.setDefault(defaultValue);
85 final Object value = convertToToscaObject(attributeDefinition.getName(), attributeDefinition.getType(), attributeDefinition.getValue(),
86 attributeDefinition.getEntry_schema(), false);
88 toscaAttribute.setValue(value);
90 return toscaAttribute;
93 private ToscaSchemaDefinition convert(final EntrySchema entrySchema) {
94 if (entrySchema == null) {
97 final ToscaSchemaDefinition toscaSchemaDefinition = new ToscaSchemaDefinition();
98 toscaSchemaDefinition.setType(entrySchema.getType());
99 toscaSchemaDefinition.setDescription(entrySchema.getDescription());
100 return toscaSchemaDefinition;
103 private Object convertToToscaObject(final String name, final String attributeType, String value, final EntrySchema schemaDefinition,
104 final boolean preserveEmptyValue) throws ToscaConversionException {
105 final String innerType = schemaDefinition == null ? attributeType : schemaDefinition.getType();
106 LOGGER.trace("Converting attribute '{}' of type '{}', value '{}', innerType '{}'", name, attributeType, value, innerType);
107 if (StringUtils.isEmpty(value)) {
108 value = getTypeDefaultValue(attributeType);
109 if (StringUtils.isEmpty(value)) {
114 boolean isScalar = true;
115 ToscaPropertyType predefinedType = ToscaPropertyType.isValidType(attributeType);
116 if (predefinedType == null) {
117 //not predefined, search in existing data types
118 final DataTypeDefinition dataTypeDefinition = dataTypes.get(attributeType);
119 predefinedType = toscaMapValueConverter.isScalarType(dataTypeDefinition);
120 if (predefinedType == null) {
124 isScalar = ToscaPropertyType.getTypeIfScalar(predefinedType.getType()) != null;
126 final JsonElement valueAsJson = parseToJson(value);
127 if (isValueGetAttribute(valueAsJson)) {
128 return ToscaMapValueConverter.getInstance().handleComplexJsonValue(valueAsJson.getAsJsonObject());
130 //if it has a converter
131 if (predefinedType != null && predefinedType.getValueConverter() != null) {
132 LOGGER.trace("It's well defined type. convert it");
133 return predefinedType.getValueConverter().convertToToscaValue(value, innerType, dataTypes);
135 //no converter but scalar
137 return toscaMapValueConverter.handleComplexJsonValue(valueAsJson);
139 //if it is a data type
140 return toscaMapValueConverter.convertDataTypeToToscaObject(innerType, dataTypes, null, false, valueAsJson, preserveEmptyValue);
141 } catch (final JsonParseException e) {
142 final String errorMsg = "Failed to parse json value";
143 LOGGER.error(EcompLoggerErrorCode.SCHEMA_ERROR, "Attribute Converter", errorMsg, e);
144 throw new ToscaConversionException(errorMsg, e);
145 } catch (final Exception e) {
146 final String errorMsg = "Unexpected error occurred while converting attribute value to TOSCA";
147 LOGGER.error(EcompLoggerErrorCode.UNKNOWN_ERROR, "Attribute Converter", errorMsg, e);
148 throw new ToscaConversionException(errorMsg, e);
152 private JsonElement parseToJson(final String value) {
153 final StringReader reader = new StringReader(value);
154 final JsonReader jsonReader = new JsonReader(reader);
155 jsonReader.setLenient(true);
156 return new JsonParser().parse(jsonReader);
159 private boolean isValueGetAttribute(final JsonElement valueAsJson) {
160 if (!valueAsJson.isJsonObject()) {
163 final JsonObject jsonObj = valueAsJson.getAsJsonObject();
164 return jsonObj.entrySet().size() == 1 && jsonObj.has(ToscaFunctions.GET_ATTRIBUTE.getFunctionName());
167 private String getTypeDefaultValue(final String attributeType) {
168 return DataTypePropertyConverter.getInstance().getDataTypePropertiesDefaultValuesRec(attributeType, dataTypes);