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63 lines
1.8 KiB
TypeScript
63 lines
1.8 KiB
TypeScript
// Loaded from https://raw.githubusercontent.com/nats-io/nats.deno/v1.0.0-11/nats-base-client/request.ts
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/*
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* Copyright 2020 The NATS Authors
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { Deferred, deferred, extend, Timeout, timeout } from "./util.ts";
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import type { Msg, RequestOptions } from "./types.ts";
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import { ErrorCode, NatsError } from "./error.ts";
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import type { MuxSubscription } from "./muxsubscription.ts";
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import { nuid } from "./nuid.ts";
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export class Request {
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token: string;
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received: number = 0;
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deferred: Deferred<Msg> = deferred();
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timer: Timeout<Msg>;
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private mux: MuxSubscription;
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constructor(
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mux: MuxSubscription,
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opts: RequestOptions = { timeout: 1000 },
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) {
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this.mux = mux;
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this.token = nuid.next();
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extend(this, opts);
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this.timer = timeout<Msg>(opts.timeout);
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}
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resolver(err: Error | null, msg: Msg): void {
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if (this.timer) {
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this.timer.cancel();
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}
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if (err) {
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this.deferred.reject(err);
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} else {
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this.deferred.resolve(msg);
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}
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this.cancel();
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}
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cancel(err?: NatsError): void {
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if (this.timer) {
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this.timer.cancel();
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}
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this.mux.cancel(this);
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this.deferred.reject(
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err ? err : NatsError.errorForCode(ErrorCode.CANCELLED),
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);
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}
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}
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