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/*-
* ============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 com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSyntaxException;
import com.google.gson.stream.JsonReader;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import org.openecomp.sdc.be.model.DataTypeDefinition;
import org.openecomp.sdc.be.model.PropertyDefinition;
import org.openecomp.sdc.be.model.tosca.ToscaPropertyType;
import org.openecomp.sdc.common.log.wrappers.Logger;
public class ToscaValueBaseConverter {
private static final Logger log = Logger.getLogger(ToscaValueBaseConverter.class.getName());
protected Gson gson = new Gson();
/**
* checks is received Object empty or equals null or not It is relevant only if received Object is instance of String, Map or List class.
*
* @param convertedValue
* @return
*/
public static boolean isEmptyObjectValue(Object convertedValue) {
if ((convertedValue == null) || (convertedValue instanceof String && ((String) convertedValue).isEmpty()) || (convertedValue instanceof Map
&& ((Map) convertedValue).isEmpty()) || (convertedValue instanceof List && ((List) convertedValue).isEmpty())) {
return true;
}
return false;
}
protected Map<String, PropertyDefinition> getAllProperties(DataTypeDefinition dataTypeDefinition) {
Map<String, PropertyDefinition> allParentsProps = new HashMap<>();
while (dataTypeDefinition != null) {
List<PropertyDefinition> currentParentsProps = dataTypeDefinition.getProperties();
if (currentParentsProps != null) {
currentParentsProps.stream().forEach(p -> allParentsProps.put(p.getName(), p));
}
dataTypeDefinition = dataTypeDefinition.getDerivedFrom();
}
return allParentsProps;
}
public ToscaPropertyType isScalarType(DataTypeDefinition dataTypeDef) {
ToscaPropertyType result = null;
DataTypeDefinition dataType = dataTypeDef;
while (dataType != null) {
String name = dataType.getName();
ToscaPropertyType typeIfScalar = ToscaPropertyType.getTypeIfScalar(name);
if (typeIfScalar != null) {
result = typeIfScalar;
break;
}
dataType = dataType.getDerivedFrom();
}
return result;
}
public Object handleComplexJsonValue(final JsonElement jsonElement) {
if (jsonElement.isJsonNull()) {
return null;
}
if (jsonElement.isJsonObject()) {
return handleJsonObject(jsonElement);
}
if (jsonElement.isJsonArray()) {
return handleJsonArray(jsonElement);
}
if (jsonElement.isJsonPrimitive()) {
if (!isJsonElementAJsonPrimitive(jsonElement)) {
return handleComplexJsonValue(parseToJson(jsonElement.getAsString()));
}
return json2JavaPrimitive(jsonElement.getAsJsonPrimitive());
}
log.debug("JSON type '{}' not supported", jsonElement);
return null;
}
private Map<String, Object> handleJsonObject(final JsonElement jsonElement) {
final JsonObject jsonObject = jsonElement.getAsJsonObject();
if (jsonObject.entrySet().isEmpty()) {
return null;
}
final Map<String, Object> jsonObjectAsMap = new HashMap<>();
for (final Entry<String, JsonElement> entry : jsonObject.entrySet()) {
final Object value = handleComplexJsonValue(entry.getValue());
if (value != null) {
jsonObjectAsMap.put(entry.getKey(), value);
}
}
return jsonObjectAsMap.isEmpty() ? null : jsonObjectAsMap;
}
private List<Object> handleJsonArray(final JsonElement entry) {
final List<Object> jsonAsArray = new ArrayList<>();
final JsonArray jsonArray = entry.getAsJsonArray();
for (final JsonElement jsonElement : jsonArray) {
jsonAsArray.add(handleComplexJsonValue(jsonElement));
}
return jsonAsArray;
}
public Object json2JavaPrimitive(final JsonPrimitive jsonPrimitive) {
if (jsonPrimitive.isBoolean()) {
return jsonPrimitive.getAsBoolean();
}
if (jsonPrimitive.isString()) {
return jsonPrimitive.getAsString();
}
if (jsonPrimitive.isNumber()) {
if (jsonPrimitive.getAsString().contains(".")) {
return jsonPrimitive.getAsDouble();
}
return jsonPrimitive.getAsInt();
}
throw new IllegalStateException(String.format("JSON primitive not supported: %s", jsonPrimitive));
}
public JsonElement parseToJson(final String value) {
try {
final StringReader reader = new StringReader(value);
final JsonReader jsonReader = new JsonReader(reader);
jsonReader.setLenient(true);
return JsonParser.parseReader(jsonReader);
} catch (final JsonSyntaxException e) {
log.debug("convertToToscaValue failed to parse json value :", e);
return null;
}
}
public boolean isJsonElementAJsonPrimitive(JsonElement jsonElement) {
if (!jsonElement.isJsonPrimitive()) {
return false;
}
String elementAsString = jsonElement.getAsString();
JsonElement elementAsJson = parseToJson(elementAsString);
if (elementAsJson.isJsonPrimitive() || elementAsJson.isJsonNull()) {
return true;
}
return false;
}
}
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