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/**

* Copyright 2014 Netflix, Inc.

*

* 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.

*/

package rx;

import java.util.Iterator;

import java.util.concurrent.TimeUnit;

import org.openjdk.jmh.annotations.BenchmarkMode;

import org.openjdk.jmh.annotations.Benchmark;

import org.openjdk.jmh.annotations.Mode;

import org.openjdk.jmh.annotations.OutputTimeUnit;

import org.openjdk.jmh.annotations.Param;

import org.openjdk.jmh.annotations.Scope;

import org.openjdk.jmh.annotations.State;

import rx.jmh.InputWithIncrementingInteger;

@BenchmarkMode(Mode.Throughput)

@OutputTimeUnit(TimeUnit.SECONDS)

public class ObservablePerfBaseline {

@State(Scope.Thread)

public static class Input extends InputWithIncrementingInteger {

@Param({ "1", "1000", "1000000" })

public int size;

@Override

public int getSize() {

return size;

}

}

@Benchmark

public void observableConsumption(Input input) throws InterruptedException {

input.firehose.subscribe(input.observer);

}

@Benchmark

public void observableViaRange(Input input) throws InterruptedException {

input.observable.subscribe(input.observer);

}

@Benchmark

public void observableConsumptionUnsafe(Input input) throws InterruptedException {

input.firehose.unsafeSubscribe(input.newSubscriber());

}

@Benchmark

public void observableViaRangeUnsafe(Input input) throws InterruptedException {

input.observable.unsafeSubscribe(input.newSubscriber());

}

@Benchmark

public void iterableViaForLoopConsumption(Input input) throws InterruptedException {

for (int i : input.iterable) {

input.observer.onNext(i);

}

}

@Benchmark

public void iterableViaHasNextConsumption(Input input) throws InterruptedException {

Iterator<Integer> iterator = input.iterable.iterator();

while (iterator.hasNext()) {

input.observer.onNext(iterator.next());

}

}

}