2 * Created by ob0695 on 6/3/2018.
5 * ============LICENSE_START=======================================================
7 * ================================================================================
8 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
9 * ================================================================================
10 * Licensed under the Apache License, Version 2.0 (the "License");
11 * you may not use this file except in compliance with the License.
12 * You may obtain a copy of the License at
14 * http://www.apache.org/licenses/LICENSE-2.0
16 * Unless required by applicable law or agreed to in writing, software
17 * distributed under the License is distributed on an "AS IS" BASIS,
18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19 * See the License for the specific language governing permissions and
20 * limitations under the License.
21 * ============LICENSE_END=========================================================
23 import {Injectable} from "@angular/core";
26 export class QueueServiceUtils {
28 private executionQueue:any;
31 if(!this.executionQueue) {
32 this.executionQueue = this.getQueue();
36 private getQueue = () => new Promise((resolve, reject) => {
40 private addMethodToQueue = (runMe:Function):void => {
41 this.executionQueue = this.executionQueue.then(runMe, runMe);
44 addNonBlockingUIAction = (update:Function, releaseUIcallBack?:Function):void => {
45 // releaseUIcallBack();
46 this.addMethodToQueue(update);
49 // The Method call is responsible for releasing the UI
50 addBlockingUIAction = (blockingServerRequest:Function):void => {
51 this.addMethodToQueue(blockingServerRequest);
54 addBlockingUIActionWithReleaseCallback = (blockingServerRequest:Function, releaseUIcallBack:Function):void=> {
55 this.addMethodToQueue(blockingServerRequest);
56 // this.addMethodToQueue(releaseUIcallBack);