| /* |
| * 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.carbondata.core.dictionary.server; |
| |
| import java.net.InetSocketAddress; |
| |
| import org.apache.carbondata.common.logging.LogServiceFactory; |
| import org.apache.carbondata.core.constants.CarbonCommonConstants; |
| import org.apache.carbondata.core.dictionary.generator.key.DictionaryMessage; |
| import org.apache.carbondata.core.dictionary.generator.key.DictionaryMessageType; |
| import org.apache.carbondata.core.dictionary.service.AbstractDictionaryServer; |
| import org.apache.carbondata.core.metadata.schema.table.CarbonTable; |
| import org.apache.carbondata.core.util.CarbonProperties; |
| |
| import io.netty.bootstrap.ServerBootstrap; |
| import io.netty.channel.ChannelInitializer; |
| import io.netty.channel.ChannelOption; |
| import io.netty.channel.ChannelPipeline; |
| import io.netty.channel.EventLoopGroup; |
| import io.netty.channel.nio.NioEventLoopGroup; |
| import io.netty.channel.socket.SocketChannel; |
| import io.netty.channel.socket.nio.NioServerSocketChannel; |
| import io.netty.handler.codec.LengthFieldBasedFrameDecoder; |
| import org.apache.log4j.Logger; |
| |
| /** |
| * Dictionary Server to generate dictionary keys. |
| */ |
| public class NonSecureDictionaryServer extends AbstractDictionaryServer |
| implements DictionaryServer { |
| |
| private static final Logger LOGGER = |
| LogServiceFactory.getLogService(NonSecureDictionaryServer.class.getName()); |
| |
| private NonSecureDictionaryServerHandler nonSecureDictionaryServerHandler; |
| |
| private EventLoopGroup boss; |
| private EventLoopGroup worker; |
| private int port; |
| private String host; |
| private static Object lock = new Object(); |
| private static NonSecureDictionaryServer INSTANCE = null; |
| |
| private NonSecureDictionaryServer(int port) { |
| this.port = port; |
| startServer(); |
| } |
| |
| public static synchronized DictionaryServer getInstance(int port, CarbonTable carbonTable) |
| throws Exception { |
| if (INSTANCE == null) { |
| INSTANCE = new NonSecureDictionaryServer(port); |
| } |
| INSTANCE.initializeDictionaryGenerator(carbonTable); |
| return INSTANCE; |
| } |
| |
| /** |
| * start dictionary server |
| * |
| */ |
| @Override |
| public void startServer() { |
| LOGGER.info("Starting Dictionary Server in Non Secure Mode"); |
| nonSecureDictionaryServerHandler = new NonSecureDictionaryServerHandler(); |
| String workerThreads = CarbonProperties.getInstance() |
| .getProperty(CarbonCommonConstants.DICTIONARY_WORKER_THREADS, |
| CarbonCommonConstants.DICTIONARY_WORKER_THREADS_DEFAULT); |
| boss = new NioEventLoopGroup(1); |
| worker = new NioEventLoopGroup(Integer.parseInt(workerThreads)); |
| // Configure the server. |
| bindToPort(); |
| } |
| |
| /** |
| * Binds dictionary server to an available port. |
| * |
| */ |
| @Override |
| public void bindToPort() { |
| long start = System.currentTimeMillis(); |
| // Configure the server. |
| int i = 0; |
| while (i < 10) { |
| int newPort = port + i; |
| try { |
| ServerBootstrap bootstrap = new ServerBootstrap(); |
| bootstrap.group(boss, worker); |
| bootstrap.channel(NioServerSocketChannel.class); |
| bootstrap.childHandler(new ChannelInitializer<SocketChannel>() { |
| @Override |
| public void initChannel(SocketChannel ch) throws Exception { |
| ChannelPipeline pipeline = ch.pipeline(); |
| pipeline |
| .addLast("LengthDecoder", new LengthFieldBasedFrameDecoder(1048576, 0, 2, 0, 2)); |
| pipeline.addLast("NonSecureDictionaryServerHandler", nonSecureDictionaryServerHandler); |
| } |
| }); |
| bootstrap.childOption(ChannelOption.SO_KEEPALIVE, true); |
| String hostToBind = findLocalIpAddress(LOGGER); |
| //iteratively listening to newports |
| InetSocketAddress address = hostToBind == null ? |
| new InetSocketAddress(newPort) : |
| new InetSocketAddress(hostToBind, newPort); |
| bootstrap.bind(address).sync(); |
| LOGGER.info("Dictionary Server started, Time spent " + (System.currentTimeMillis() - start) |
| + " Listening on port " + newPort); |
| this.port = newPort; |
| this.host = hostToBind; |
| break; |
| } catch (Exception e) { |
| LOGGER.error("Dictionary Server Failed to bind to port:" + newPort, e); |
| if (i == 9) { |
| throw new RuntimeException("Dictionary Server Could not bind to any port"); |
| } |
| } |
| i++; |
| } |
| } |
| |
| /** |
| * @return Port on which the NonSecureDictionaryServer has started. |
| */ |
| @Override |
| public int getPort() { |
| return port; |
| } |
| |
| @Override |
| public String getSecretKey() { |
| return null; |
| } |
| |
| @Override |
| public boolean isEncryptSecureServer() { |
| return false; |
| } |
| |
| @Override |
| public String getHost() { |
| return host; |
| } |
| |
| /** |
| * shutdown dictionary server |
| * |
| * @throws Exception |
| */ |
| @Override |
| public void shutdown() throws Exception { |
| LOGGER.info("Shutting down dictionary server"); |
| worker.shutdownGracefully(); |
| boss.shutdownGracefully(); |
| } |
| |
| /** |
| * Write Dictionary for one table. |
| * |
| * @throws Exception |
| */ |
| |
| @Override |
| public void writeTableDictionary(String uniqueTableName) throws Exception { |
| DictionaryMessage key = new DictionaryMessage(); |
| key.setTableUniqueId(uniqueTableName); |
| key.setType(DictionaryMessageType.WRITE_TABLE_DICTIONARY); |
| nonSecureDictionaryServerHandler.processMessage(key); |
| } |
| |
| public void initializeDictionaryGenerator(CarbonTable carbonTable) throws Exception { |
| nonSecureDictionaryServerHandler.initializeTable(carbonTable); |
| } |
| |
| } |