test/hotspot/jtreg/gc/g1/plab/lib/PlabGCStatistics.java

/*
 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
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 */
package gc.g1.plab.lib;

import java.util.EnumMap;
import java.util.Map;

import gc.g1.plab.lib.LogParser.ReportType;

/**
 * Class that represents PLAB statistics for a single GC.
 * It includes both Survivor and Old PLAB statistics.
 */
public class PlabGCStatistics {

    private final Map<ReportType, PlabInfo> plabGCStatistics;

    public PlabGCStatistics() {
        plabGCStatistics = new EnumMap<>(ReportType.class);
    }

    /**
     * Checks if the statistics contains the requested type.
     * @param reportType
     * @returns true, if contains, false otherwise
     */
    public boolean containsKey(ReportType reportType) {
        return plabGCStatistics.containsKey(reportType);
    }

    /**
     * Put pair of ReportType and PlabInfo to statistics.
     * @param reportType
     * @param plabInfo
     */
    public void put(ReportType reportType, PlabInfo plabInfo) {
        plabGCStatistics.put(reportType, plabInfo);
    }

    /**
     * Returns PlabInfo of specified type
     * @param reportType
     * @return
     */
    public PlabInfo get(ReportType reportType) {
        return plabGCStatistics.get(reportType);
    }
}