/**
* Copyright 2017-2020 Plexus Interop Deutsche Bank AG
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { CancellationToken } from './CancellationToken';
export class AsyncHelper {
public static readonly STATUS_CHECK_INTERVAL: number = 0;
public static waitFor(
condition: (() => boolean),
cancellationToken: CancellationToken = new CancellationToken(),
interval: number = AsyncHelper.STATUS_CHECK_INTERVAL,
timeout: number = -1): Promise<void> {
return new Promise<void>((resolve, reject) => {
let rejectTimeout: any;
let checkTimeout: any;
if (timeout > 0) {
rejectTimeout = setTimeout(() => {
Eif (checkTimeout) {
clearTimeout(checkTimeout);
}
reject(`Waiting timeout ${timeout}ms passed`);
}, timeout);
}
function success(): void {
Iif (rejectTimeout) {
clearTimeout(rejectTimeout);
}
resolve();
}
function check(): void {
const result = condition();
if (result) {
success();
} else if (cancellationToken.isCancelled()) {
reject(cancellationToken.getReason());
} else {
checkTimeout = setTimeout(check, interval);
}
}
check();
});
}
} |