41 lines
1.4 KiB
Java
41 lines
1.4 KiB
Java
/*
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* Copyright 2021 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty5.buffer.api.internal;
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import io.netty5.buffer.api.MemoryManager;
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import java.util.ServiceLoader;
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import java.util.ServiceLoader.Provider;
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import java.util.stream.Stream;
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public final class MemoryManagerLoader {
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/**
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* Cache the service loader to reduce cost of repeated calls.
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* However, also place the cached loader field in a dedicated class, so the service loading is performed lazily,
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* on class initialisation, when (and if) needed.
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*/
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private static final ServiceLoader<MemoryManager> LOADER = ServiceLoader.load(MemoryManager.class);
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private MemoryManagerLoader() {
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}
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/**
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* @see MemoryManager#availableManagers()
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*/
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public static Stream<Provider<MemoryManager>> stream() {
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return LOADER.stream();
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}
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}
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