Github user sounakr commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/1152#discussion_r126904754
--- Diff:
core/src/main/java/org/apache/carbondata/core/dictionary/server/DictionaryServer.java
---
@@ -14,153 +14,28 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-package org.apache.carbondata.core.dictionary.server;
-
-import org.apache.carbondata.common.logging.LogService;
-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.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;
-
-/**
- * Dictionary Server to generate dictionary keys.
- */
-public class DictionaryServer {
-
- private static final LogService LOGGER =
-
LogServiceFactory.getLogService(DictionaryServer.class.getName());
- private DictionaryServerHandler dictionaryServerHandler;
-
- private EventLoopGroup boss;
- private EventLoopGroup worker;
- private int port;
- private static Object lock = new Object();
- private static DictionaryServer INSTANCE = null;
+package org.apache.carbondata.core.dictionary.server;
- private DictionaryServer(int port) {
- startServer(port);
- }
+import org.apache.spark.SparkConf;
- public static DictionaryServer getInstance(int port) {
- if (INSTANCE == null) {
- synchronized (lock) {
- if (INSTANCE == null) {
- INSTANCE = new DictionaryServer(port);
- }
- }
- }
- return INSTANCE;
- }
+public interface DictionaryServer {
- /**
- * start dictionary server
- *
- * @param port
- */
- private void startServer(int port) {
- dictionaryServerHandler = new DictionaryServerHandler();
- 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(port);
- }
+ public void startServer(SparkConf conf, String host, int port);
- /**
- * Binds dictionary server to an available port.
- *
- * @param port
- */
- private void bindToPort(int port) {
- 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("DictionaryServerHandler",
dictionaryServerHandler);
- }
- });
- bootstrap.childOption(ChannelOption.SO_KEEPALIVE, true);
- bootstrap.bind(newPort).sync();
- LOGGER.audit("Dictionary Server started, Time spent " +
(System.currentTimeMillis() - start)
- + " Listening on port " + newPort);
- this.port = newPort;
- break;
- } catch (Exception e) {
- LOGGER.error(e, "Dictionary Server Failed to bind to port:");
- if (i == 9) {
- throw new RuntimeException("Dictionary Server Could not bind to
any port");
- }
- }
- i++;
- }
- }
+ public void bindToPort(SparkConf orgConf, String host, int port);
- /**
- *
- * @return Port on which the DictionaryServer has started.
- */
- public int getPort() {
- return port;
- }
+ public void shutdown()throws Exception;
- /**
- * shutdown dictionary server
- *
- * @throws Exception
- */
- public void shutdown() throws Exception {
- LOGGER.info("Shutting down dictionary server");
- worker.shutdownGracefully();
- boss.shutdownGracefully();
- }
+ public String findLocalIpAddress();
+ public String getHost();
+ public int getPort();
- /**
- * Write dictionary to the store.
- * @throws Exception
- */
- public void writeDictionary() throws Exception {
- DictionaryMessage key = new DictionaryMessage();
- key.setType(DictionaryMessageType.WRITE_DICTIONARY);
- dictionaryServerHandler.processMessage(key);
- }
+ public String getSecretKey();
--- End diff --
Done
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