/**
* 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 ReadWriteCancellationToken {
constructor(
private readonly readToken: CancellationToken = new CancellationToken(),
private readonly writeToken: CancellationToken = new CancellationToken()
) {}
public cancelRead(reason: string = 'Read cancelled'): void {
this.readToken.cancel(reason);
}
public cancelWrite(reason: string = 'Write cancelled'): void {
this.writeToken.cancel(reason);
}
public throwIfCanceled(): void {
if (this.isCancelled()) {
throw Error(this.readToken.getReason() || this.writeToken.getReason() || 'Cancelled');
}
}
public isCancelled(): boolean {
return this.readToken.isCancelled() && this.writeToken.isCancelled();
}
public cancel(reason: string = 'Cancelled'): void {
this.cancelRead(reason);
this.cancelWrite(reason);
}
public isReadCancelled(): boolean {
return this.readToken.isCancelled();
}
public isWriteCancelled(): boolean {
return this.writeToken.isCancelled();
}
public getReadToken(): CancellationToken {
return this.readToken;
}
public getWriteToken(): CancellationToken {
return this.writeToken;
}
} |