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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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package org.openjdk.bench.java.text;

import java.text.DecimalFormat;
import java.text.ParseException;
import java.util.concurrent.TimeUnit;

import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.annotations.Measurement;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.OperationsPerInvocation;
import org.openjdk.jmh.annotations.OutputTimeUnit;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.Setup;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.annotations.Warmup;
import org.openjdk.jmh.infra.Blackhole;
import org.openjdk.jmh.runner.Runner;
import org.openjdk.jmh.runner.options.Options;
import org.openjdk.jmh.runner.options.OptionsBuilder;

@BenchmarkMode(Mode.Throughput)
@OutputTimeUnit(TimeUnit.MILLISECONDS)
@Warmup(iterations = 5, time = 1)
@Measurement(iterations = 5, time = 1)
@Fork(3)
@State(Scope.Benchmark)
public class DecimalFormatParseBench {

    public String[] valuesLong;
    public String[] valuesDouble;

    @Setup
    public void setup() {
        valuesLong = new String[]{
                "123", "149", "180", "170000000000000000", "0", "-149", "-15000", "99999123", "1494", "1495", "1030", "25996", "-25996"
        };

        valuesDouble = new String[]{
                "1.23", "1.49", "1.80", "17000000000000000.1", "0.01", "-1.49", "-1.50", "9999.9123", "1.494", "1.495", "1.03", "25.996", "-25.996"
        };
    }

    private DecimalFormat dnf = new DecimalFormat();

    @Benchmark
    @OperationsPerInvocation(13)
    public void testParseLongs(final Blackhole blackhole) throws ParseException {
        for (String value : valuesLong) {
            blackhole.consume(this.dnf.parse(value));
        }
    }

    @Benchmark
    @OperationsPerInvocation(13)
    public void testParseDoubles(final Blackhole blackhole) throws ParseException {
        for (String value : valuesDouble) {
            blackhole.consume(this.dnf.parse(value));
        }
    }
    public static void main(String... args) throws Exception {
        Options opts = new OptionsBuilder().include(DefFormatterBench.class.getSimpleName()).shouldDoGC(true).build();
        new Runner(opts).run();
    }

}