org.zalando.tracer.hystrix.TracerConcurrencyStrategy Maven / Gradle / Ivy

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package org.zalando.tracer.hystrix;

/*
 * ⁣
 * Tracer: Hystrix
 * ⁣⁣
 * Copyright (C) 2015 - 2016 Zalando SE
 * ⁣⁣
 * 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 com.netflix.hystrix.strategy.concurrency.HystrixConcurrencyStrategy;
import org.zalando.tracer.Tracer;

import java.util.concurrent.Callable;

public final class TracerConcurrencyStrategy extends ForwardingHystrixConcurrencyStrategy {

    private final Tracer tracer;
    private final HystrixConcurrencyStrategy delegate;

    public TracerConcurrencyStrategy(final Tracer tracer, final HystrixConcurrencyStrategy delegate) {
        this.tracer = tracer;
        this.delegate = delegate;
    }

    @Override
    protected HystrixConcurrencyStrategy delegate() {
        return delegate;
    }

    @Override
    public  Callable wrapCallable(final Callable callable) {
        return tracer.preserve(super.wrapCallable(callable));
    }

}