blob: 5565e77a8cfb5d62b3455ab0a462ed4d74394820 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
package org.jetbrains.io;
import io.netty.channel.*;
import io.netty.channel.group.ChannelGroup;
import io.netty.channel.group.DefaultChannelGroup;
import io.netty.util.concurrent.ImmediateEventExecutor;
import org.jetbrains.annotations.NotNull;
import java.util.concurrent.TimeUnit;
@ChannelHandler.Sharable
public final class ChannelRegistrar extends ChannelInboundHandlerAdapter {
private final ChannelGroup openChannels = new DefaultChannelGroup(ImmediateEventExecutor.INSTANCE);
public boolean isEmpty() {
return openChannels.isEmpty();
}
public void add(@NotNull Channel serverChannel) {
assert serverChannel instanceof ServerChannel;
openChannels.add(serverChannel);
}
@Override
public void channelActive(ChannelHandlerContext context) throws Exception {
// we don't need to remove channel on close - ChannelGroup do it
openChannels.add(context.channel());
super.channelActive(context);
}
public void close() {
close(true);
}
public void close(boolean shutdownEventLoopGroup) {
EventLoopGroup eventLoopGroup = null;
if (shutdownEventLoopGroup) {
for (Channel channel : openChannels) {
if (channel instanceof ServerChannel) {
eventLoopGroup = channel.eventLoop().parent();
break;
}
}
}
try {
openChannels.close().awaitUninterruptibly(30, TimeUnit.SECONDS);
}
finally {
if (eventLoopGroup != null) {
eventLoopGroup.shutdownGracefully();
}
}
}
}
|