io.micronaut.http.netty.channel.NettyThreadFactory Maven / Gradle / Ivy
/*
* Copyright 2017-2020 original authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.micronaut.http.netty.channel;
import io.micronaut.context.annotation.BootstrapContextCompatible;
import io.micronaut.context.annotation.Factory;
import io.micronaut.core.annotation.TypeHint;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.util.NettyRuntime;
import io.netty.util.concurrent.DefaultThreadFactory;
import io.netty.util.internal.SystemPropertyUtil;
import jakarta.inject.Named;
import jakarta.inject.Singleton;
import java.util.concurrent.ThreadFactory;
/**
* The Default thread factory the Netty {@link io.netty.channel.nio.NioEventLoopGroup} will use within Micronaut to
* create threads.
*
* @author graemerocher
* @since 1.0
*/
@Singleton
@Factory
@TypeHint(value = {
NioServerSocketChannel.class,
NioSocketChannel.class
}, typeNames = {"sun.security.ssl.SSLContextImpl$TLSContext"},
accessType = {TypeHint.AccessType.ALL_DECLARED_CONSTRUCTORS, TypeHint.AccessType.ALL_DECLARED_FIELDS, TypeHint.AccessType.ALL_PUBLIC_CONSTRUCTORS}
)
@BootstrapContextCompatible
public class NettyThreadFactory {
/**
* Name for Netty thread factory.
*/
public static final String NAME = "netty";
/**
* Constant with the default threads in the event loop.
*/
public static final int DEFAULT_EVENT_LOOP_THREADS = Math.max(1, SystemPropertyUtil.getInt("io.netty.eventLoopThreads", NettyRuntime.availableProcessors() * 2));
/**
* Constructs the default thread factory used by the HTTP client.
*
* @return The thread factory
*/
@Singleton
@Named(NAME)
@BootstrapContextCompatible
protected ThreadFactory nettyThreadFactory() {
return new DefaultThreadFactory("default-" + DefaultThreadFactory.toPoolName(NioEventLoopGroup.class));
}
}