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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 | 3x 3x 3x 2x 1x 2x 2x 2x 3x 13x 13x 13x 13x 13x 9x 9x 9x 9x 9x 1x 8x 2x 2x 6x 9x 8x 8x 8x 22x 58x 49x 58x 49x 58x 3x 3x 11x 9x 9x 6x 3x 1x 5x 8x 1x 5x 1x 1x 1x | import { Injectable, Logger } from '@nestjs/common';
import { TestSessionChange } from 'testcenter-common/interfaces/test-session-change.interface';
import { Monitor } from '../monitor/monitor.interface';
import { WebsocketGateway } from '../common/websocket.gateway';
const mergeSessionChanges = (testSession: TestSessionChange, sessionChange: TestSessionChange): TestSessionChange => {
if ((sessionChange.unitName) && (sessionChange.unitName !== testSession.unitName)) {
testSession.unitState = {};
}
sessionChange.unitState = { ...testSession.unitState, ...sessionChange.unitState };
sessionChange.testState = { ...testSession.testState, ...sessionChange.testState };
return { ...testSession, ...sessionChange };
};
@Injectable()
export class TestSessionService {
constructor(
private readonly websocketGateway: WebsocketGateway
) {
this.websocketGateway.getDisconnectionObservable().subscribe((disconnected: string) => {
this.removeMonitor(disconnected);
});
}
private readonly logger = new Logger(TestSessionService.name);
private testSessions: {
[group: string]: {
[sessionId: string]: TestSessionChange
}
} = {};
private monitors: {
[group: string]: {
[token: string]: Monitor
}
} = {};
applySessionChange(sessionChange: TestSessionChange): void {
this.addSessionChange(sessionChange);
this.broadcastTestSessionsToGroupMonitors(sessionChange.groupName);
}
private addSessionChange(sessionChange: TestSessionChange): void {
const group: string = sessionChange.groupName;
const testId = sessionChange.testId;
// testSession is first of group
if (typeof this.testSessions[group] === 'undefined') {
// this.logger.log("skipping group hence not monitored: " + group);
return;
}
if (typeof this.testSessions[group][testId] !== 'undefined') {
// testSession is already known and needs to be updated
const testSession = this.testSessions[group][testId];
this.testSessions[group][testId] = mergeSessionChanges(testSession, sessionChange);
} else {
// formally unknown testSession
this.testSessions[group][testId] = sessionChange;
}
}
private broadcastTestSessionsToGroupMonitors(groupName: string) {
if (typeof this.monitors[groupName] !== 'undefined') {
// this.logger.log("broadcasting data about group: " + groupName);
const tokens = Object.keys(this.monitors[groupName]);
const sessions = (typeof this.testSessions[groupName] !== 'undefined') ?
Object.values(this.testSessions[groupName]) :
[];
this.websocketGateway.broadcastToRegistered(tokens, 'test-sessions', sessions);
}
}
addMonitor(monitor: Monitor): void {
monitor.groups.forEach((group: string) => {
if (typeof this.monitors[group] === 'undefined') {
this.monitors[group] = {};
}
if (typeof this.testSessions[group] === 'undefined') {
this.testSessions[group] = {};
}
this.monitors[group][monitor.token] = monitor;
});
}
removeMonitor(monitorToken: string): void {
this.logger.log(`remove monitor: ${monitorToken}`);
Object.keys(this.monitors).forEach((group: string) => {
if (typeof this.monitors[group][monitorToken] !== 'undefined') {
delete this.monitors[group][monitorToken];
if (Object.keys(this.monitors[group]).length === 0) {
delete this.testSessions[group];
}
}
});
this.websocketGateway.disconnectClient(monitorToken);
}
getMonitors(): Monitor[] {
return Object.values(this.monitors)
.reduce(
(allMonitors: Monitor[], groupMonitors: { [g: string]: Monitor }): Monitor[] => allMonitors
.concat(Object.values(groupMonitors)), []
)
.filter((v: Monitor, i: number, a: Monitor[]) => a.indexOf(v) === i);
}
getTestSessions(): TestSessionChange[] {
return Object.values(this.testSessions)
.reduce(
// eslint-disable-next-line max-len
(allTestSessions: TestSessionChange[], groupTestSessions: { [g: string]: TestSessionChange }): TestSessionChange[] => allTestSessions.concat(Object.values(groupTestSessions)), []
);
}
getClientTokens(): string[] {
return this.websocketGateway.getClientTokens();
}
clean(): void {
this.monitors = {};
this.testSessions = {};
}
}
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