/*
 * Copyright 2020 LINE Corporation
 *
 * LINE Corporation licenses this file to you 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.
 */

package com.linecorp.armeria.internal.common;

import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.infra.Blackhole;

/**
 * Microbenchmarks of {@link Class} loading.
 */
public class ClassLoadBenchmark {

    @Benchmark
    public void loadClass(Blackhole bh) throws ClassNotFoundException {
        bh.consume(Class.forName("com.linecorp.armeria.thrift.services.HelloService"));
    }

    @Benchmark
    public void loadClassWithoutInitialization(Blackhole bh) throws ClassNotFoundException {
        bh.consume(Class.forName("com.linecorp.armeria.thrift.services.HelloService", false,
                                 CacheableClassLoader.class.getClassLoader()));
    }

    @Benchmark
    public void loadCachedClassWithConcurrentHashMap(Blackhole bh) throws ClassNotFoundException {
        bh.consume(CacheableClassLoader.loadWithConcurrentHashMap(
                "com.linecorp.armeria.thrift.services.HelloService"));
    }

    @Benchmark
    public void loadCachedClassWithWeakHashMap(Blackhole bh) throws ClassNotFoundException {
        bh.consume(
                CacheableClassLoader.loadWithGuavaHashMap("com.linecorp.armeria.thrift.services.HelloService"));
    }

    @Benchmark
    public void loadCachedClassWithoutInitialization(Blackhole bh) throws ClassNotFoundException {
        bh.consume(CacheableClassLoader.loadWithConcurrentHashMap(
                "com.linecorp.armeria.thrift.services.HelloService", false));
    }
}
