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/*
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* Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package jdk.jfr.internal.settings;
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import java.util.Objects;
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import java.util.Set;
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import jdk.jfr.Description;
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import jdk.jfr.Label;
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import jdk.jfr.MetadataDefinition;
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import jdk.jfr.Name;
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import jdk.jfr.internal.PlatformEventType;
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import jdk.jfr.internal.Control;
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import jdk.jfr.internal.Type;
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import jdk.jfr.internal.Utils;
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@MetadataDefinition
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@Label("Period")
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@Description("Record event at interval")
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@Name(Type.SETTINGS_PREFIX + "Period")
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public final class PeriodSetting extends Control {
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private static final long typeId = Type.getTypeId(PeriodSetting.class);
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public static final String EVERY_CHUNK = "everyChunk";
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public static final String BEGIN_CHUNK = "beginChunk";
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public static final String END_CHUNK = "endChunk";
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public static final String NAME = "period";
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private final PlatformEventType eventType;
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private String value = EVERY_CHUNK;
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public PeriodSetting(PlatformEventType eventType, String defaultValue) {
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super(defaultValue);
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this.eventType = Objects.requireNonNull(eventType);
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}
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@Override
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public String combine(Set<String> values) {
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long min = Long.MAX_VALUE;
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boolean beginChunk = false;
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boolean endChunk = false;
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String text = EVERY_CHUNK;
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for (String value : values) {
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switch (value) {
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case EVERY_CHUNK:
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beginChunk = true;
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endChunk = true;
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break;
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case BEGIN_CHUNK:
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beginChunk = true;
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break;
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case END_CHUNK:
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endChunk = true;
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break;
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default:
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long l = Utils.parseTimespan(value);
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if (l < min) {
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text = value;
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min = l;
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}
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}
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}
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if (min != Long.MAX_VALUE) {
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return text;
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}
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if (beginChunk && !endChunk) {
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return BEGIN_CHUNK;
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}
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if (!beginChunk && endChunk) {
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return END_CHUNK;
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}
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return text;
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}
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@Override
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public void setValue(String value) {
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switch (value) {
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case EVERY_CHUNK:
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eventType.setPeriod(0, true, true);
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break;
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case BEGIN_CHUNK:
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eventType.setPeriod(0, true, false);
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break;
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case END_CHUNK:
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eventType.setPeriod(0, false, true);
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break;
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default:
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eventType.setPeriod(Utils.parseTimespan(value) / 1_000_000, false, false);
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}
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this.value = value;
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}
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@Override
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public String getValue() {
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return value;
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}
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public static boolean isType(long typeId) {
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return PeriodSetting.typeId == typeId;
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}
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}
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