/*
 * 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 { ProxyTracer } from './ProxyTracer';
import { NoopTracerProvider } from './NoopTracerProvider';
const NOOP_TRACER_PROVIDER = new NoopTracerProvider();
/**
 * Tracer provider which provides {@link ProxyTracer}s.
 *
 * Before a delegate is set, tracers provided are NoOp.
 *   When a delegate is set, traces are provided from the delegate.
 *   When a delegate is set after tracers have already been provided,
 *   all tracers already provided will use the provided delegate implementation.
 */
export class ProxyTracerProvider {
    /**
     * Get a {@link ProxyTracer}
     */
    getTracer(name, version, options) {
        var _a;
        return ((_a = this.getDelegateTracer(name, version, options)) !== null && _a !== void 0 ? _a : new ProxyTracer(this, name, version, options));
    }
    getDelegate() {
        var _a;
        return (_a = this._delegate) !== null && _a !== void 0 ? _a : NOOP_TRACER_PROVIDER;
    }
    /**
     * Set the delegate tracer provider
     */
    setDelegate(delegate) {
        this._delegate = delegate;
    }
    getDelegateTracer(name, version, options) {
        var _a;
        return (_a = this._delegate) === null || _a === void 0 ? void 0 : _a.getTracer(name, version, options);
    }
}
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