mirror of https://github.com/bvn13/sewy.git
49 lines
1.4 KiB
Java
49 lines
1.4 KiB
Java
/*
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Copyright 2020 Vyacheslav Boyko
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package me.bvn13.sewy;
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import java.io.Serializable;
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import java.util.List;
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import java.util.concurrent.CopyOnWriteArrayList;
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import java.util.concurrent.locks.ReentrantLock;
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public final class Sewy {
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private static Sewy INSTANCE;
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private static final ReentrantLock LOCK = new ReentrantLock();
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private final List<Serializable> registeredDataTypes = new CopyOnWriteArrayList<>();
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public static void register(Serializable clazz) {
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getInstance().registeredDataTypes.add(clazz);
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}
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private Sewy() {}
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private static Sewy getInstance() {
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try {
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LOCK.lock();
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if (INSTANCE == null) {
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INSTANCE = new Sewy();
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}
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return INSTANCE;
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} finally {
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LOCK.unlock();
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}
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}
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}
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