/*
 * Copyright (c) 2014, Oracle America, Inc.
 * All rights reserved.
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 * modification, are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
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 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
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 *  * Neither the name of Oracle nor the names of its contributors may be used
 *    to endorse or promote products derived from this software without
 *    specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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package org.agoncal.sample.jmh;

import org.agoncal.sample.jmh.model.ServiceCategory;
import org.agoncal.sample.jmh.model.ServiceType;
import org.openjdk.jmh.annotations.*;

import java.util.HashSet;
import java.util.Set;
import java.util.stream.Collectors;

@Fork(value = 2)
public class MyBenchmark {

    @State(Scope.Benchmark)
    public static class BenchState {
        Set<ServiceCategory> serviceCategories;
        Set<ServiceType> serviceTypes;
        ServiceType serviceType;

        @Setup
        public void setup(){
            serviceCategories = new HashSet<>();
            for (int i = 0; i < 100; i++) {
                serviceTypes = new HashSet<>();
                for (int j = 0; j < 100; j++) {
                    ServiceType serviceTypeToAdd = new ServiceType(Integer.toString(j));
                    serviceTypes.add(serviceTypeToAdd);

                    if (i == 50 && j == 50) {
                        serviceType = serviceTypeToAdd;
                    }
                }
                serviceCategories.add(new ServiceCategory(serviceTypes));
            }
        }

        @TearDown
        public void tearDown(){
            serviceCategories = null;
            serviceTypes = null;
            serviceType = null;
        }
    }



    @Benchmark
    public void testAnyMetch(BenchState benchState) {
        benchState.serviceCategories.stream()
                .anyMatch(serviceCategory -> serviceCategory.getServiceTypes().contains(benchState.serviceType));
    }

    @Benchmark
    public void testFlatMap(BenchState benchState) {
        benchState.serviceCategories.stream()
                .flatMap(serviceCategory -> serviceCategory.getServiceTypes().stream()).collect(Collectors.toSet()).contains(benchState.serviceType);
    }

}