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Allow switching between Netty 4 & 5 by restricting to intersection of interfaces

This commit is contained in:
Louis Ryan 2015-03-13 10:31:46 -07:00 committed by nmittler
parent 0076243063
commit 3f7325ecf5
1 changed files with 18 additions and 2 deletions
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20
netty/src/main/java/io/grpc/transport/netty/Utils.java
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@ -45,9 +45,14 @@ import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.handler.codec.AsciiString;
import io.netty.handler.codec.http2.DefaultHttp2Headers;
import io.netty.handler.codec.http2.Http2Headers;
import io.netty.util.concurrent.Future;
import io.netty.util.concurrent.GenericFutureListener;
import java.nio.ByteBuffer;
import java.util.Map;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
/**
* Common utility methods.
@ -173,8 +178,19 @@ class Utils {
@Override
public EventLoopGroup create() {
return new NioEventLoopGroup(nEventLoops, new ThreadFactoryBuilder().setNameFormat(name + "-%d")
.build());
// Use the executor based constructor so we can work with both Netty4 & Netty5.
ThreadFactory threadFactory = new ThreadFactoryBuilder().setNameFormat(name + "-%d").build();
int parallelism = nEventLoops == 0 ?
Runtime.getRuntime().availableProcessors() * 2 : nEventLoops;
final ExecutorService executor = Executors.newFixedThreadPool(parallelism, threadFactory);
NioEventLoopGroup nioEventLoopGroup = new NioEventLoopGroup(parallelism, executor);
nioEventLoopGroup.terminationFuture().addListener(new GenericFutureListener<Future<?>>() {
@Override
public void operationComplete(Future<?> future) throws Exception {
executor.shutdown();
}
});
return nioEventLoopGroup;
}
@Override