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/*-
* ============LICENSE_START=======================================================
* ONAP CLAMP
* ================================================================================
* Copyright (C) 2020 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.onap.policy.clamp.clds.tosca.update.elements;
import com.google.gson.JsonArray;
import com.google.gson.JsonObject;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.Map.Entry;
import org.onap.policy.clamp.clds.tosca.update.templates.JsonTemplate;
public class Constraint {
private LinkedHashMap<String, Object> constraints;
private JsonTemplate jsonTemplate;
public Constraint(LinkedHashMap<String, Object> constraints, JsonTemplate jsonTemplate) {
this.jsonTemplate = jsonTemplate;
this.constraints = constraints;
}
/**
* Deploy the linkedhashmap which contains the constraints, to extract them one to one.
*
* @param jsonSchema The json Schema
* @param typeProperty The ype property
* @return the json object
*/
public JsonObject deployConstraints(JsonObject jsonSchema, String typeProperty) {
for (Entry<String, Object> constraint : constraints.entrySet()) {
this.parseConstraint(jsonSchema, constraint.getKey(), constraint.getValue(), typeProperty);
}
return jsonSchema;
}
/**
* Each case of Tosca constraints below parse specifically the field in the JsonObject.
*
* @param jsonSchema Json Schema
* @param nameConstraint Name constraint
* @param valueConstraint value constraint
* @param typeProperty Type Property
*/
@SuppressWarnings("unchecked")
public void parseConstraint(JsonObject jsonSchema, String nameConstraint, Object valueConstraint,
String typeProperty) {
switch (nameConstraint) {
case "equal":
checkTemplateField("const", jsonSchema, valueConstraint);
break;
case "greater_than":
checkTemplateField("exclusiveMinimum", jsonSchema, valueConstraint);
break;
case "greater_or_equal":
checkTemplateField("minimum", jsonSchema, valueConstraint);
break;
case "less_than":
checkTemplateField("exclusiveMaximum", jsonSchema, valueConstraint);
break;
case "less_or_equal":
checkTemplateField("maximum", jsonSchema, valueConstraint);
break;
case "in_range":
ArrayList<Integer> limitValues = (ArrayList<Integer>) valueConstraint;
checkTemplateField("minimum", jsonSchema, limitValues.get(0));
checkTemplateField("maximum", jsonSchema, limitValues.get(1));
break;
case "pattern":
jsonSchema.addProperty(nameConstraint, (String) valueConstraint);
break;
case "length":
this.getSpecificLength(jsonSchema, valueConstraint, typeProperty);
break;
case "min_length":
String[] prefixValues = nameConstraint.split("_");
this.getLimitValue(jsonSchema, valueConstraint, typeProperty, prefixValues[0]);
break;
case "max_length":
String[] maxtab = nameConstraint.split("_");
this.getLimitValue(jsonSchema, valueConstraint, typeProperty, maxtab[0]);
break;
default://valid_value
this.getValueArray(jsonSchema, valueConstraint, typeProperty);
break;
}
}
/**
* To be done.
*
* @param jsonSchema json schema
* @param fieldValue field value
* @param typeProperty For the complex components, get a specific number of items/properties
*/
public void getSpecificLength(JsonObject jsonSchema, Object fieldValue, String typeProperty) {
switch (typeProperty.toLowerCase()) {
case "string":
checkTemplateField("minLength", jsonSchema, fieldValue);
checkTemplateField("maxLength", jsonSchema, fieldValue);
break;
case "array":
if (fieldValue.equals(1) && jsonTemplate.hasFields("uniqueItems")) {
jsonSchema.addProperty("uniqueItems", true);
} else {
checkTemplateField("minItems", jsonSchema, fieldValue);
checkTemplateField("maxItems", jsonSchema, fieldValue);
}
break;
default:// Map && List
checkTemplateField("minProperties", jsonSchema, fieldValue);
checkTemplateField("maxProperties", jsonSchema, fieldValue);
break;
}
}
/**
* To be done.
*
* @param jsonSchema json schema
* @param fieldValue field value
* @param typeProperty type property
* @param side Get the limits fieldValue for the properties : depend of the type of the component
*/
public void getLimitValue(JsonObject jsonSchema, Object fieldValue, String typeProperty, String side) {
switch (typeProperty) {
case "string":
if (side.equals("min")) {
checkTemplateField("minLength", jsonSchema, fieldValue);
} else {
checkTemplateField("maxLength", jsonSchema, fieldValue);
}
break;
default:// Array
if (side.equals("min")) {
checkTemplateField("minItems", jsonSchema, fieldValue);
} else {
checkTemplateField("maxItems", jsonSchema, fieldValue);
}
break;
}
}
/**
* To be done.
*
* @param jsonSchema Json schema
* @param fieldValue field value
* @param typeProperty Get as Enum the valid values for the property
*/
public void getValueArray(JsonObject jsonSchema, Object fieldValue, String typeProperty) {
if (jsonTemplate.hasFields("enum")) {
JsonArray enumeration = new JsonArray();
if (typeProperty.equals("string") || typeProperty.equals("String")) {
ArrayList<String> arrayValues = (ArrayList<String>) fieldValue;
for (String arrayItem : arrayValues) {
enumeration.add(arrayItem);
}
jsonSchema.add("enum", enumeration);
} else {
ArrayList<Number> arrayValues = (ArrayList<Number>) fieldValue;
for (Number arrayItem : arrayValues) {
enumeration.add(arrayItem);
}
jsonSchema.add("enum", enumeration);
}
}
}
/**
* To be done.
*
* @param field Field
* @param jsonSchema Json schema
* @param fieldValue Simple way to avoid code duplication
*/
public void checkTemplateField(String field, JsonObject jsonSchema, Object fieldValue) {
if (jsonTemplate.hasFields(field)) {
String typeField = fieldValue.getClass().getSimpleName();
switch (typeField) {
case "String":
jsonSchema.addProperty(field, (String) fieldValue);
break;
case "Integer":
jsonSchema.addProperty(field, (Integer) fieldValue);
break;
case "Number":
jsonSchema.addProperty(field, (Number) fieldValue);
break;
case "Boolean":
jsonSchema.addProperty(field, (Boolean) fieldValue);
break;
default:
break;
}
}
}
}
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