132 lines
4.2 KiB
Java
132 lines
4.2 KiB
Java
/*
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* This file is part of BlueMap, licensed under the MIT License (MIT).
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*
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* Copyright (c) Blue (Lukas Rieger) <https://bluecolored.de>
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* Copyright (c) contributors
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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 de.bluecolored.bluemap.core.util;
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import de.bluecolored.bluemap.api.debug.DebugDump;
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import java.util.concurrent.ConcurrentHashMap;
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@DebugDump
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public class Key implements Keyed {
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private static final ConcurrentHashMap<String, String> STRING_INTERN_POOL = new ConcurrentHashMap<>();
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public static final String MINECRAFT_NAMESPACE = "minecraft";
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public static final String BLUEMAP_NAMESPACE = "bluemap";
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private final String namespace;
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private final String value;
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private final String formatted;
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public Key(String formatted) {
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String namespace = MINECRAFT_NAMESPACE;
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String value = formatted;
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int namespaceSeparator = formatted.indexOf(':');
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if (namespaceSeparator > 0) {
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namespace = formatted.substring(0, namespaceSeparator);
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value = formatted.substring(namespaceSeparator + 1);
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}
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this.namespace = intern(namespace);
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this.value = intern(value);
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this.formatted = intern(this.namespace + ":" + this.value);
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}
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public Key(String namespace, String value) {
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this.namespace = intern(namespace);
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this.value = intern(value);
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this.formatted = intern(this.namespace + ":" + this.value);
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}
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public String getNamespace() {
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return namespace;
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}
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public String getValue() {
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return value;
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}
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public String getFormatted() {
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return formatted;
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}
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@Override
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public Key getKey() {
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return this;
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}
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@SuppressWarnings("StringEquality")
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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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Key that = (Key) o;
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return formatted == that.formatted;
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}
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@Override
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public int hashCode() {
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return formatted.hashCode();
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}
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@Override
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public String toString() {
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return formatted;
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}
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public static Key parse(String formatted) {
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return new Key(formatted);
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}
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public static Key parse(String formatted, String defaultNamespace) {
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String namespace = defaultNamespace;
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String value = formatted;
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int namespaceSeparator = formatted.indexOf(':');
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if (namespaceSeparator > 0) {
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namespace = formatted.substring(0, namespaceSeparator);
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value = formatted.substring(namespaceSeparator + 1);
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}
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return new Key(namespace, value);
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}
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public static Key minecraft(String value) {
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return new Key(MINECRAFT_NAMESPACE, value);
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}
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public static Key bluemap(String value) {
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return new Key(BLUEMAP_NAMESPACE, value);
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}
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/**
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* Using our own function instead of {@link String#intern()} since the ConcurrentHashMap is much faster.
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*/
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protected static String intern(String string) {
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String interned = STRING_INTERN_POOL.putIfAbsent(string, string);
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return interned != null ? interned : string;
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}
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}
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