/
AcceptorThread.java
executable file
·127 lines (111 loc) · 4.17 KB
/
AcceptorThread.java
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/*
* Copyright 2015-2016 Odnoklassniki Ltd, Mail.Ru Group
*
* 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
*
* http://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 one.nio.server;
import one.nio.net.Session;
import one.nio.net.Socket;
import one.nio.net.SslContext;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import java.io.IOException;
final class AcceptorThread extends Thread {
private static final Log log = LogFactory.getLog(AcceptorThread.class);
final String address;
final int port;
final int backlog;
final Server server;
final Socket serverSocket;
volatile long acceptedSessions;
volatile long rejectedSessions;
AcceptorThread(Server server, AcceptorConfig config) throws IOException {
super("NIO Acceptor " + config.address + ":" + config.port);
this.address = config.address;
this.port = config.port;
this.backlog = config.backlog;
this.server = server;
Socket serverSocket = Socket.createServerSocket();
if (config.ssl != null) {
SslContext sslContext = SslContext.create();
sslContext.configure(config.ssl);
serverSocket = serverSocket.sslWrap(sslContext);
}
this.serverSocket = serverSocket;
if (config.recvBuf != 0) serverSocket.setRecvBuffer(config.recvBuf);
if (config.sendBuf != 0) serverSocket.setSendBuffer(config.sendBuf);
if (config.tos != 0) serverSocket.setTos(config.tos);
if (config.deferAccept) serverSocket.setDeferAccept(true);
serverSocket.setNoDelay(config.noDelay);
serverSocket.setTcpFastOpen(config.tcpFastOpen);
serverSocket.setReuseAddr(true, config.reusePort);
serverSocket.bind(address, port, backlog);
}
void reconfigure(AcceptorConfig config) throws IOException {
if (config.recvBuf != 0) {
serverSocket.setRecvBuffer(config.recvBuf);
}
if (config.sendBuf != 0) {
serverSocket.setSendBuffer(config.sendBuf);
}
if (config.tos != 0) {
serverSocket.setTos(config.tos);
}
serverSocket.setDeferAccept(config.deferAccept);
serverSocket.setNoDelay(config.noDelay);
serverSocket.setTcpFastOpen(config.tcpFastOpen);
serverSocket.setReuseAddr(true, config.reusePort);
SslContext sslContext = serverSocket.getSslContext();
if (sslContext != null && config.ssl != null) {
sslContext.configure(config.ssl);
}
}
void shutdown() {
serverSocket.close();
try {
join();
} catch (InterruptedException e) {
// Ignore
}
}
@Override
public void run() {
try {
serverSocket.listen(backlog);
} catch (IOException e) {
log.error("Cannot start listening at " + port);
return;
}
while (serverSocket.isOpen()) {
Socket socket = null;
try {
socket = serverSocket.accept();
socket.setBlocking(false);
Session session = server.createSession(socket);
server.register(session);
acceptedSessions++;
} catch (RejectedSessionException e) {
if (log.isDebugEnabled()) {
log.debug("Rejected session from " + socket.getRemoteAddress(), e);
}
rejectedSessions++;
socket.close();
} catch (Throwable e) {
if (serverSocket.isOpen()) {
log.error("Cannot accept incoming connection", e);
}
if (socket != null) socket.close();
}
}
}
}