1/*
2 * Copyright (c) 2016, 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 */
23package gc.g1.plab.lib;
24
25import java.util.HashMap;
26import java.util.Map;
27import java.util.stream.Stream;
28
29/**
30 * Class contains representation of GC PLAB log.
31 */
32public class PlabReport {
33
34    private final Map<Long, PlabGCStatistics> report = new HashMap<>();
35
36    public PlabReport() {
37    }
38
39    /**
40     * Checks if underlying Map contains requested GC ID.
41     */
42    public boolean containsKey(Long gcId) {
43        return report.containsKey(gcId);
44    }
45
46    /**
47     * Puts GC ID and PlabGCStatistics to underlying Map.
48     */
49    public void put(Long gcId, PlabGCStatistics plabStat) {
50        report.put(gcId, plabStat);
51    }
52
53    /**
54     * Returns PlabGCStatistics for specified GC ID.
55     */
56    public PlabGCStatistics get(Long gcId) {
57        return report.get(gcId);
58    }
59
60    /**
61     * Returns Stream of Map.Entry of underlying Map.
62     */
63    public Stream<Map.Entry<Long, PlabGCStatistics>> entryStream() {
64        return report.entrySet().stream();
65    }
66}
67