| /** |
| * 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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.hadoop.ozone.recon; |
| |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.ScheduledExecutorService; |
| |
| import org.apache.hadoop.hdds.cli.GenericCli; |
| import org.apache.hadoop.hdds.conf.OzoneConfiguration; |
| import org.apache.hadoop.ozone.recon.spi.OzoneManagerServiceProvider; |
| import org.hadoop.ozone.recon.schema.ReconInternalSchemaDefinition; |
| import org.hadoop.ozone.recon.schema.StatsSchemaDefinition; |
| import org.hadoop.ozone.recon.schema.UtilizationSchemaDefinition; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.google.inject.Guice; |
| import com.google.inject.Inject; |
| import com.google.inject.Injector; |
| |
| |
| /** |
| * Recon server main class that stops and starts recon services. |
| */ |
| public class ReconServer extends GenericCli { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(ReconServer.class); |
| private final ScheduledExecutorService scheduler = |
| Executors.newScheduledThreadPool(1); |
| private Injector injector; |
| |
| @Inject |
| private ReconHttpServer httpServer; |
| |
| public static void main(String[] args) { |
| new ReconServer().run(args); |
| } |
| |
| @Override |
| public Void call() throws Exception { |
| OzoneConfiguration ozoneConfiguration = createOzoneConfiguration(); |
| ConfigurationProvider.setConfiguration(ozoneConfiguration); |
| |
| injector = Guice.createInjector(new |
| ReconControllerModule(), |
| new ReconRestServletModule() { |
| @Override |
| protected void configureServlets() { |
| rest("/api/*") |
| .packages("org.apache.hadoop.ozone.recon.api"); |
| } |
| }, |
| new ReconTaskBindingModule()); |
| |
| //Pass on injector to listener that does the Guice - Jersey HK2 bridging. |
| ReconGuiceServletContextListener.setInjector(injector); |
| |
| LOG.info("Initializing Recon server..."); |
| try { |
| StatsSchemaDefinition statsSchemaDefinition = injector.getInstance( |
| StatsSchemaDefinition.class); |
| statsSchemaDefinition.initializeSchema(); |
| |
| UtilizationSchemaDefinition utilizationSchemaDefinition = |
| injector.getInstance(UtilizationSchemaDefinition.class); |
| utilizationSchemaDefinition.initializeSchema(); |
| |
| ReconInternalSchemaDefinition reconInternalSchemaDefinition = |
| injector.getInstance(ReconInternalSchemaDefinition.class); |
| reconInternalSchemaDefinition.initializeSchema(); |
| |
| LOG.info("Recon server initialized successfully!"); |
| |
| httpServer = injector.getInstance(ReconHttpServer.class); |
| LOG.info("Starting Recon server"); |
| httpServer.start(); |
| |
| //Start Ozone Manager Service that pulls data from OM. |
| OzoneManagerServiceProvider ozoneManagerServiceProvider = injector |
| .getInstance(OzoneManagerServiceProvider.class); |
| ozoneManagerServiceProvider.start(); |
| } catch (Exception e) { |
| LOG.error("Error during initializing Recon server.", e); |
| stop(); |
| } |
| |
| Runtime.getRuntime().addShutdownHook(new Thread(() -> { |
| try { |
| stop(); |
| } catch (Exception e) { |
| LOG.error("Error during stop Recon server", e); |
| } |
| })); |
| return null; |
| } |
| |
| void stop() throws Exception { |
| LOG.info("Stopping Recon server"); |
| httpServer.stop(); |
| } |
| } |