1 /*
 2  * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 4  *
 5  * This code is free software; you can redistribute it and/or modify it
 6  * under the terms of the GNU General Public License version 2 only, as
 7  * published by the Free Software Foundation.
 8  *
 9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  */
23 package org.openjdk.bench.valhalla.sandbox.corelibs.corelibs.mapprotos;
24 
25 import org.openjdk.jmh.annotations.Benchmark;
26 import org.openjdk.jmh.annotations.Setup;
27 import org.openjdk.jmh.annotations.State;
28 import org.openjdk.jmh.annotations.TearDown;
29 
30 import java.util.HashMap;
31 import java.util.Map;
32 import java.util.function.IntFunction;
33 
34 
35 public class PutX extends MapBase {
36     IntFunction<Map<Integer, Integer>> mapSupplier;
37     Map<Integer,Integer> lastMap;
38 
39     @Setup
40     public void setup() {
41         super.init(size);
42         try {
43             Class<?> mapClass = Class.forName(mapType);
44             mapSupplier =  (size) -> newInstance(mapClass, size);
45         } catch (Exception ex) {
46             System.out.printf("%s: %s%n", mapType, ex.getMessage());
47             return;
48         }
49     }
50 
51     Map<Integer, Integer> newInstance(Class<?> mapClass, int size) {
52         try {
53             return (Map<Integer, Integer>)mapClass.getConstructor(int.class).newInstance(size);
54         } catch (Exception ex) {
55             throw new RuntimeException("failed", ex);
56         }
57     }
58 
59     @TearDown
60     public void teardown() {
61         super.TearDown(lastMap);
62     }
63 
64     @Benchmark
65     public Map<Integer, Integer> put() {
66         Integer[] keys = this.keys;
67         Map<Integer, Integer> map = mapSupplier.apply(0);
68         for (Integer k : keys) {
69             map.put(k, k);
70         }
71         lastMap = map;
72         return map;
73     }
74 
75     @Benchmark
76     public Map<Integer, Integer> putSized() {
77         Integer[] keys = this.keys;
78         Map<Integer, Integer> map = mapSupplier.apply(size * 2);
79         for (Integer k : keys) {
80             map.put(k, k);
81         }
82         lastMap = map;
83         return map;
84     }
85 
86 }