1 | import { Subject } from '../Subject';
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2 | import { async } from '../scheduler/async';
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3 | import { Subscriber } from '../Subscriber';
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4 | import { isNumeric } from '../util/isNumeric';
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5 | import { isScheduler } from '../util/isScheduler';
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6 | export function windowTime(windowTimeSpan) {
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7 | let scheduler = async;
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8 | let windowCreationInterval = null;
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9 | let maxWindowSize = Number.POSITIVE_INFINITY;
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10 | if (isScheduler(arguments[3])) {
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11 | scheduler = arguments[3];
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12 | }
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13 | if (isScheduler(arguments[2])) {
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14 | scheduler = arguments[2];
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15 | }
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16 | else if (isNumeric(arguments[2])) {
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17 | maxWindowSize = Number(arguments[2]);
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18 | }
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19 | if (isScheduler(arguments[1])) {
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20 | scheduler = arguments[1];
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21 | }
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22 | else if (isNumeric(arguments[1])) {
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23 | windowCreationInterval = Number(arguments[1]);
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24 | }
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25 | return function windowTimeOperatorFunction(source) {
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26 | return source.lift(new WindowTimeOperator(windowTimeSpan, windowCreationInterval, maxWindowSize, scheduler));
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27 | };
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28 | }
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29 | class WindowTimeOperator {
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30 | constructor(windowTimeSpan, windowCreationInterval, maxWindowSize, scheduler) {
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31 | this.windowTimeSpan = windowTimeSpan;
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32 | this.windowCreationInterval = windowCreationInterval;
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33 | this.maxWindowSize = maxWindowSize;
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34 | this.scheduler = scheduler;
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35 | }
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36 | call(subscriber, source) {
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37 | return source.subscribe(new WindowTimeSubscriber(subscriber, this.windowTimeSpan, this.windowCreationInterval, this.maxWindowSize, this.scheduler));
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38 | }
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39 | }
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40 | class CountedSubject extends Subject {
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41 | constructor() {
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42 | super(...arguments);
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43 | this._numberOfNextedValues = 0;
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44 | }
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45 | next(value) {
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46 | this._numberOfNextedValues++;
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47 | super.next(value);
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48 | }
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49 | get numberOfNextedValues() {
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50 | return this._numberOfNextedValues;
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51 | }
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52 | }
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53 | class WindowTimeSubscriber extends Subscriber {
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54 | constructor(destination, windowTimeSpan, windowCreationInterval, maxWindowSize, scheduler) {
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55 | super(destination);
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56 | this.destination = destination;
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57 | this.windowTimeSpan = windowTimeSpan;
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58 | this.windowCreationInterval = windowCreationInterval;
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59 | this.maxWindowSize = maxWindowSize;
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60 | this.scheduler = scheduler;
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61 | this.windows = [];
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62 | const window = this.openWindow();
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63 | if (windowCreationInterval !== null && windowCreationInterval >= 0) {
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64 | const closeState = { subscriber: this, window, context: null };
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65 | const creationState = { windowTimeSpan, windowCreationInterval, subscriber: this, scheduler };
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66 | this.add(scheduler.schedule(dispatchWindowClose, windowTimeSpan, closeState));
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67 | this.add(scheduler.schedule(dispatchWindowCreation, windowCreationInterval, creationState));
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68 | }
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69 | else {
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70 | const timeSpanOnlyState = { subscriber: this, window, windowTimeSpan };
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71 | this.add(scheduler.schedule(dispatchWindowTimeSpanOnly, windowTimeSpan, timeSpanOnlyState));
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72 | }
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73 | }
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74 | _next(value) {
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75 | const windows = this.windows;
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76 | const len = windows.length;
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77 | for (let i = 0; i < len; i++) {
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78 | const window = windows[i];
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79 | if (!window.closed) {
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80 | window.next(value);
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81 | if (window.numberOfNextedValues >= this.maxWindowSize) {
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82 | this.closeWindow(window);
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83 | }
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84 | }
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85 | }
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86 | }
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87 | _error(err) {
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88 | const windows = this.windows;
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89 | while (windows.length > 0) {
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90 | windows.shift().error(err);
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91 | }
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92 | this.destination.error(err);
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93 | }
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94 | _complete() {
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95 | const windows = this.windows;
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96 | while (windows.length > 0) {
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97 | const window = windows.shift();
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98 | if (!window.closed) {
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99 | window.complete();
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100 | }
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101 | }
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102 | this.destination.complete();
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103 | }
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104 | openWindow() {
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105 | const window = new CountedSubject();
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106 | this.windows.push(window);
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107 | const destination = this.destination;
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108 | destination.next(window);
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109 | return window;
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110 | }
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111 | closeWindow(window) {
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112 | window.complete();
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113 | const windows = this.windows;
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114 | windows.splice(windows.indexOf(window), 1);
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115 | }
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116 | }
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117 | function dispatchWindowTimeSpanOnly(state) {
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118 | const { subscriber, windowTimeSpan, window } = state;
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119 | if (window) {
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120 | subscriber.closeWindow(window);
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121 | }
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122 | state.window = subscriber.openWindow();
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123 | this.schedule(state, windowTimeSpan);
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124 | }
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125 | function dispatchWindowCreation(state) {
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126 | const { windowTimeSpan, subscriber, scheduler, windowCreationInterval } = state;
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127 | const window = subscriber.openWindow();
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128 | const action = this;
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129 | let context = { action, subscription: null };
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130 | const timeSpanState = { subscriber, window, context };
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131 | context.subscription = scheduler.schedule(dispatchWindowClose, windowTimeSpan, timeSpanState);
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132 | action.add(context.subscription);
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133 | action.schedule(state, windowCreationInterval);
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134 | }
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135 | function dispatchWindowClose(state) {
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136 | const { subscriber, window, context } = state;
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137 | if (context && context.action && context.subscription) {
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138 | context.action.remove(context.subscription);
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139 | }
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140 | subscriber.closeWindow(window);
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141 | }
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142 | //# sourceMappingURL=windowTime.js.map |
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