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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.dubbo.qos.server;
import org.apache.dubbo.common.logger.ErrorTypeAwareLogger;
import org.apache.dubbo.common.logger.LoggerFactory;
import org.apache.dubbo.common.utils.StringUtils;
import org.apache.dubbo.qos.permission.PermissionLevel;
import org.apache.dubbo.qos.common.QosConfiguration;
import org.apache.dubbo.qos.server.handler.QosProcessHandler;
import org.apache.dubbo.rpc.model.FrameworkModel;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.Channel;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.util.concurrent.DefaultThreadFactory;
import java.util.concurrent.atomic.AtomicBoolean;
import static org.apache.dubbo.common.constants.LoggerCodeConstants.QOS_FAILED_START_SERVER;
/**
* A server serves for both telnet access and http access
*
* - static initialize server
* - start server and bind port
* - close server
*
*/
public class Server {
private static final ErrorTypeAwareLogger logger = LoggerFactory.getErrorTypeAwareLogger(Server.class);
private String host;
private int port;
private boolean acceptForeignIp = true;
private String acceptForeignIpWhitelist = StringUtils.EMPTY_STRING;
private String anonymousAccessPermissionLevel = PermissionLevel.NONE.name();
private EventLoopGroup boss;
private EventLoopGroup worker;
private FrameworkModel frameworkModel;
public Server(FrameworkModel frameworkModel) {
this.welcome = DubboLogo.DUBBO;
this.frameworkModel = frameworkModel;
}
private String welcome;
private AtomicBoolean started = new AtomicBoolean();
/**
* welcome message
*/
public void setWelcome(String welcome) {
this.welcome = welcome;
}
public int getPort() {
return port;
}
/**
* start server, bind port
*/
public void start() throws Throwable {
if (!started.compareAndSet(false, true)) {
return;
}
boss = new NioEventLoopGroup(1, new DefaultThreadFactory("qos-boss", true));
worker = new NioEventLoopGroup(0, new DefaultThreadFactory("qos-worker", true));
ServerBootstrap serverBootstrap = new ServerBootstrap();
serverBootstrap.group(boss, worker);
serverBootstrap.channel(NioServerSocketChannel.class);
serverBootstrap.option(ChannelOption.SO_REUSEADDR, true);
serverBootstrap.childOption(ChannelOption.TCP_NODELAY, true);
serverBootstrap.childHandler(new ChannelInitializer() {
@Override
protected void initChannel(Channel ch) throws Exception {
ch.pipeline().addLast(new QosProcessHandler(frameworkModel,
QosConfiguration.builder()
.welcome(welcome)
.acceptForeignIp(acceptForeignIp)
.acceptForeignIpWhitelist(acceptForeignIpWhitelist)
.anonymousAccessPermissionLevel(anonymousAccessPermissionLevel)
.build()
));
}
});
try {
if (StringUtils.isBlank(host)) {
serverBootstrap.bind(port).sync();
} else {
serverBootstrap.bind(host, port).sync();
}
logger.info("qos-server bind localhost:" + port);
} catch (Throwable throwable) {
logger.error(QOS_FAILED_START_SERVER, "", "", "qos-server can not bind localhost:" + port, throwable);
throw throwable;
}
}
/**
* close server
*/
public void stop() {
logger.info("qos-server stopped.");
if (boss != null) {
boss.shutdownGracefully();
}
if (worker != null) {
worker.shutdownGracefully();
}
}
public String getHost() {
return host;
}
public void setHost(String host) {
this.host = host;
}
public void setPort(int port) {
this.port = port;
}
public boolean isAcceptForeignIp() {
return acceptForeignIp;
}
public void setAcceptForeignIp(boolean acceptForeignIp) {
this.acceptForeignIp = acceptForeignIp;
}
public void setAcceptForeignIpWhitelist(String acceptForeignIpWhitelist) {
this.acceptForeignIpWhitelist = acceptForeignIpWhitelist;
}
public void setAnonymousAccessPermissionLevel(String anonymousAccessPermissionLevel) {
this.anonymousAccessPermissionLevel = anonymousAccessPermissionLevel;
}
public String getWelcome() {
return welcome;
}
public boolean isStarted() {
return started.get();
}
}