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117 lines
3.9 KiB
Java
117 lines
3.9 KiB
Java
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/*
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* This file is licensed under the MIT License (MIT).
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*
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* Copyright (c) 2014 Daniel Ennis <http://aikar.co>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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package co.aikar.timings;
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import co.aikar.util.LoadingMap;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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import java.util.Map;
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import java.util.Objects;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.concurrent.atomic.AtomicInteger;
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import org.jetbrains.annotations.NotNull;
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import org.jetbrains.annotations.Nullable;
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/**
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* <p>Used as a basis for fast HashMap key comparisons for the Timing Map.</p>
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*
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* This class uses interned strings giving us the ability to do an identity check instead of equals() on the strings
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*/
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final class TimingIdentifier {
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/**
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* Holds all groups. Autoloads on request for a group by name.
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*/
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static final Map<String, TimingGroup> GROUP_MAP = LoadingMap.of(new ConcurrentHashMap<>(64, .5F), TimingGroup::new);
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private static final TimingGroup DEFAULT_GROUP = getGroup("Minecraft");
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final String group;
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final String name;
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final TimingHandler groupHandler;
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private final int hashCode;
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TimingIdentifier(@Nullable String group, @NotNull String name, @Nullable Timing groupHandler) {
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this.group = group != null ? group: DEFAULT_GROUP.name;
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this.name = name;
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this.groupHandler = groupHandler != null ? groupHandler.getTimingHandler() : null;
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this.hashCode = (31 * this.group.hashCode()) + this.name.hashCode();
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}
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@NotNull
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static TimingGroup getGroup(@Nullable String groupName) {
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if (groupName == null) {
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//noinspection ConstantConditions
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return DEFAULT_GROUP;
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}
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return GROUP_MAP.get(groupName);
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}
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@Override
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public boolean equals(Object o) {
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if (o == null) {
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return false;
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}
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TimingIdentifier that = (TimingIdentifier) o;
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return Objects.equals(group, that.group) && Objects.equals(name, that.name);
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}
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@Override
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public int hashCode() {
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return hashCode;
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}
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@Override
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public String toString() {
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return "TimingIdentifier{id=" + group + ":" + name +'}';
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}
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static class TimingGroup {
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private static AtomicInteger idPool = new AtomicInteger(1);
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final int id = idPool.getAndIncrement();
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final String name;
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final List<TimingHandler> handlers = Collections.synchronizedList(new ArrayList<>(64));
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private TimingGroup(String name) {
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this.name = name;
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}
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@Override
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public boolean equals(Object o) {
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if (this == o) return true;
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if (o == null || getClass() != o.getClass()) return false;
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TimingGroup that = (TimingGroup) o;
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return id == that.id;
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}
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@Override
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public int hashCode() {
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return id;
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}
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}
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}
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