2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2021 Nordix Foundation. 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
11 * http://www.apache.org/licenses/LICENSE-2.0
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=========================================================
21 import {Injectable} from '@angular/core';
22 import {AttributeFEModel} from "../../../../models/attributes-outputs/attribute-fe-model";
23 import {SimpleFlatAttribute} from "app/models/attributes-outputs/simple-flat-attribute";
24 import {DerivedFEAttribute} from "../../../../models/attributes-outputs/derived-fe-attribute";
27 export class HierarchyNavService {
29 * Build hierarchy structure for the tree when user selects on table row.
30 * First create Array<SimpleFlatAttribute> and insert also the parent (AttributeFEModel) to this array.
31 * The Array is flat and contains SimpleFlatAttribute that has parentName and uniqueId.
32 * Now we build hierarchy from this Array (that includes children) and return it for the tree
34 * @argument attribute: AttributeFEModel - attribute contains flattenedChildren array of DerivedFEAttribute
35 * @returns Array<SimpleFlatAttribute> - containing children Array<SimpleFlatAttribute>, augmantin children to SimpleFlatAttribute.
37 public getSimpleAttributesTree(attribute: AttributeFEModel, instanceName: string): Array<SimpleFlatAttribute> {
38 // Build Array of SimpleFlatAttribute before unflatten function
39 let flatAttributes: Array<SimpleFlatAttribute> = [];
40 flatAttributes.push(this.createSimpleFlatAttribute(attribute, instanceName)); // Push the root attribute
41 attribute.flattenedChildren.forEach((child: DerivedFEAttribute): void => {
42 if (child.isChildOfListOrMap && child.schema.property.isSimpleType) return; //do not display non-complex children of list or map
43 flatAttributes.push(this.createSimpleFlatAttribute(child, instanceName));
46 let tree = this.unflatten(flatAttributes, '', []);
47 return tree[0].childrens; // Return the childrens without the root.
50 public createSimpleFlatAttribute = (attribute: AttributeFEModel | DerivedFEAttribute, instanceName: string): SimpleFlatAttribute => {
51 if (attribute instanceof AttributeFEModel) {
52 return new SimpleFlatAttribute(attribute.uniqueId, attribute.name, attribute.name, '', instanceName);
54 let attribName: string = (attribute.isChildOfListOrMap) ? attribute.mapKey : attribute.name;
55 return new SimpleFlatAttribute(attribute.uniqueId, attribute.attributesName, attribName, attribute.parentName, instanceName);
61 * Unflatten Array<SimpleFlatAttribute> and build hierarchy.
62 * The result will be Array<SimpleFlatAttribute> that augmantin with children for each SimpleFlatAttribute.
64 private unflatten(array: Array<SimpleFlatAttribute>, parent: any, tree?: any): any {
65 tree = typeof tree !== 'undefined' ? tree : [];
66 parent = typeof parent !== 'undefined' && parent !== '' ? parent : {path: ''};
68 var children = array.filter((child: SimpleFlatAttribute): boolean => {
69 return child.parentName == parent.path;
72 if (children && children.length) {
73 if (parent.path == '') {
76 parent['children'] = children;
78 children.forEach((child): void => {
79 this.unflatten(array, child);