otf-frontend/client/src/app/shared/services/list.service.ts

   1 /*  Copyright (c) 2019 AT&T Intellectual Property.                             #\r
   2 #                                                                              #\r
   3 #   Licensed under the Apache License, Version 2.0 (the "License");            #\r
   4 #   you may not use this file except in compliance with the License.           #\r
   5 #   You may obtain a copy of the License at                                    #\r
   6 #                                                                              #\r
   7 #       http://www.apache.org/licenses/LICENSE-2.0                             #\r
   8 #                                                                              #\r
   9 #   Unless required by applicable law or agreed to in writing, software        #\r
  10 #   distributed under the License is distributed on an "AS IS" BASIS,          #\r
  11 #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   #\r
  12 #   See the License for the specific language governing permissions and        #\r
  13 #   limitations under the License.                                             #\r
  14 ##############################################################################*/\r
  15 \r
  16 \r
  17 import { Injectable, OnInit } from '@angular/core';\r
  18 import { BehaviorSubject } from 'rxjs';\r
  19 \r
  20 @Injectable({\r
  21   providedIn: 'root'\r
  22 })\r
  23 export class ListService {\r
  24 \r
  25   listMap: {[uniqueKey: string]: {listSource: any, currentList: any} } = {};\r
  26   // private listSource = new BehaviorSubject(null);\r
  27   // currentList = this.listSource.asObservable();\r
  28 \r
  29   constructor() { }\r
  30 \r
  31   createList(key){\r
  32     this.listMap[key] = {\r
  33       listSource: new BehaviorSubject(null),\r
  34       currentList: null\r
  35     }\r
  36     this.listMap[key].currentList = this.listMap[key].listSource.asObservable();\r
  37     this.listMap[key].listSource.next([]);\r
  38   }\r
  39 \r
  40   changeMessage(key, message: any) {\r
  41     if(!this.listMap[key])\r
  42       this.createList(key);\r
  43 \r
  44     this.listMap[key].listSource.next(message)\r
  45   }\r
  46 \r
  47   addElement(key, obj: any){\r
  48     this.listMap[key].currentList.subscribe(function(value){\r
  49       //console.log(value);\r
  50       value.push(obj);\r
  51     });\r
  52   }\r
  53 \r
  54   removeElement(key, object_field_name, id: any){\r
  55     let val = 0;\r
  56     this.listMap[key].currentList.subscribe(function(value){\r
  57       value.forEach(function(elem, val) {\r
  58         if(elem[object_field_name] == id){\r
  59           value.splice(val, 1);\r
  60         }\r
  61       });\r
  62     });\r
  63     \r
  64   }\r
  65 \r
  66   updateElement(key, object_field_name, id: any, new_object){\r
  67     let val = 0;\r
  68     this.listMap[key].currentList.subscribe(function(value){\r
  69       value.forEach(function(elem, val) {\r
  70         if(elem[object_field_name] == id){\r
  71           value[val] = new_object;\r
  72         }\r
  73       })\r
  74     });\r
  75   }\r
  76 \r
  77 }\r