/*
 * Copyright The OpenTelemetry Authors
 *
 * 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
 *
 *      https://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 { globalErrorHandler } from '@opentelemetry/core';
/**
 * Implementation of the {@link SpanProcessor} that simply forwards all
 * received events to a list of {@link SpanProcessor}s.
 */
export class MultiSpanProcessor {
    _spanProcessors;
    constructor(spanProcessors) {
        this._spanProcessors = spanProcessors;
    }
    forceFlush() {
        const promises = [];
        for (const spanProcessor of this._spanProcessors) {
            promises.push(spanProcessor.forceFlush());
        }
        return new Promise(resolve => {
            Promise.all(promises)
                .then(() => {
                resolve();
            })
                .catch(error => {
                globalErrorHandler(error || new Error('MultiSpanProcessor: forceFlush failed'));
                resolve();
            });
        });
    }
    onStart(span, context) {
        for (const spanProcessor of this._spanProcessors) {
            spanProcessor.onStart(span, context);
        }
    }
    onEnding(span) {
        for (const spanProcessor of this._spanProcessors) {
            if (spanProcessor.onEnding) {
                spanProcessor.onEnding(span);
            }
        }
    }
    onEnd(span) {
        for (const spanProcessor of this._spanProcessors) {
            spanProcessor.onEnd(span);
        }
    }
    shutdown() {
        const promises = [];
        for (const spanProcessor of this._spanProcessors) {
            promises.push(spanProcessor.shutdown());
        }
        return new Promise((resolve, reject) => {
            Promise.all(promises).then(() => {
                resolve();
            }, reject);
        });
    }
}
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