/
GenericErrorMapper.ts
36 lines (31 loc) · 1.33 KB
/
GenericErrorMapper.ts
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/*
* Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
* http://www.apache.org/licenses/LICENSE-2.0
*
* or in the "license" file accompanying this file. This file 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 { ErrorHandler } from '../handler/ErrorHandler';
import { ErrorMapper } from './ErrorMapper';
/**
* Generic implementation of @{link ErrorMapper}
*/
export class GenericErrorMapper<Input, Output> implements ErrorMapper<Input, Output> {
protected errorHandlers: Array<ErrorHandler<Input, Output>>;
constructor(options: {errorHandlers: Array<ErrorHandler<Input, Output>>}) {
this.errorHandlers = options.errorHandlers;
}
public async getErrorHandler(handlerInput: Input, error: Error): Promise<ErrorHandler<Input, Output>> {
for (const errorHandler of this.errorHandlers) {
if (await errorHandler.canHandle(handlerInput, error)) {
return errorHandler;
}
}
return null;
}
}