org.apache.shardingsphere.shardingscaling.Bootstrap Maven / Gradle / Ivy
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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.shardingsphere.shardingscaling;
import com.google.common.base.Preconditions;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.Channel;
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.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;
import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;
import org.apache.shardingsphere.shardingscaling.core.config.ScalingContext;
import org.apache.shardingsphere.shardingscaling.core.config.ServerConfiguration;
import org.apache.shardingsphere.shardingscaling.web.HttpServerInitializer;
import org.apache.shardingsphere.shardingscaling.utils.RuntimeUtil;
import org.apache.shardingsphere.underlying.common.yaml.engine.YamlEngine;
import java.io.File;
import java.io.IOException;
/**
* Bootstrap of ShardingScaling.
*/
@Slf4j
public final class Bootstrap {
private static final String DEFAULT_CONFIG_PATH = "/conf/";
private static final String DEFAULT_CONFIG_FILE_NAME = "server.yaml";
/**
* Main entry.
*
* @param args running args
*/
@SneakyThrows
public static void main(final String[] args) {
log.info("Init server config");
initServerConfig();
log.info("ShardingScaling Startup");
EventLoopGroup bossGroup = new NioEventLoopGroup(1);
EventLoopGroup workerGroup = new NioEventLoopGroup();
try {
ServerBootstrap bootstrap = new ServerBootstrap();
bootstrap.option(ChannelOption.SO_BACKLOG, 1024);
bootstrap.group(bossGroup, workerGroup)
.channel(NioServerSocketChannel.class)
.handler(new LoggingHandler(LogLevel.INFO))
.childHandler(new HttpServerInitializer());
int port = ScalingContext.getInstance().getServerConfiguration().getPort();
Channel channel = bootstrap.bind(port).sync().channel();
log.info("ShardingScaling is server on http://127.0.0.1:" + port + '/');
channel.closeFuture().sync();
} finally {
bossGroup.shutdownGracefully();
workerGroup.shutdownGracefully();
}
}
private static void initServerConfig() throws IOException {
File yamlFile = new File(RuntimeUtil.getResourcePath(DEFAULT_CONFIG_PATH + DEFAULT_CONFIG_FILE_NAME));
ServerConfiguration serverConfiguration = YamlEngine.unmarshal(yamlFile, ServerConfiguration.class);
Preconditions.checkNotNull(serverConfiguration, "Server configuration file `%s` is invalid.", yamlFile.getName());
ScalingContext.getInstance().init(serverConfiguration);
}
}