nativescript-dna-netservices/zeroconf-service-browser.android.js

NativeScript plugin for Bonjour/ZeroConf and network monitoring. RxJS based APIs for Android and iOS.

import { Observable } from "rxjs";
import * as application from "@nativescript/core/application";
import { ZeroConf, zeroConfStatus } from "./netservice.common";
import { mapError } from "./zeroconf-service.common";
import { startWith } from "rxjs/operators";
const MORE_COMING = 1 << 0;
const SERVICE_LOST = 1 << 8;
export class ZeroConfServiceBrowser {
    searchForBrowsableDomains() {
        return new Observable((observer) => {
            let status = zeroConfStatus.add;
            status |= zeroConfStatus.stopComing;
            observer.next(new ZeroConf({ status, domain: "local." }));
            observer.complete();
        });
    }
    searchForRegistrationDomains() {
        return new Observable((observer) => {
            let status = zeroConfStatus.add;
            status |= zeroConfStatus.stopComing;
            observer.next(new ZeroConf({ status, domain: "local." }));
            observer.complete();
        });
    }
    searchForServicesOfTypeInDomain(type, domain) {
        const observable = new Observable((observer) => {
            const nextHandler = new io.reactivex.functions.Consumer({
                accept: bonjourService => {
                    let status = zeroConfStatus.unKnown;
                    const flags = bonjourService.getFlags();
                    if (flags & SERVICE_LOST) {
                        status = zeroConfStatus.remove;
                    }
                    else {
                        status = zeroConfStatus.add;
                    }
                    status |=
                        flags & MORE_COMING
                            ? zeroConfStatus.moreComing
                            : zeroConfStatus.stopComing;
                    observer.next(new ZeroConf({
                        status: status,
                        name: bonjourService.getServiceName(),
                        type: bonjourService.getRegType(),
                        domain: bonjourService.getDomain(),
                        hostName: bonjourService.getHostname(),
                        port: bonjourService.getPort()
                    }));
                }
            });
            const errorHandler = new io.reactivex.functions.Consumer({
                accept: ec => {
                    observer.error(mapError(ec));
                }
            });
            const rxdnssd = new com.github.druk.rx2dnssd.Rx2DnssdBindable(application.android.context);
            const disposable = rxdnssd
                .browse(type, domain)
                .subscribe(nextHandler, errorHandler);
            return () => disposable.dispose();
        });
        return observable.pipe(startWith(new ZeroConf({
            status: zeroConfStatus.serviceBegins,
            type: type,
            domain: domain
        })));
    }
    stop() {
        console.assert(false, "On Android stop api is not implemented.");
    }
}
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