code: /*
   * 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.skywalking.oap.log.analyzer.provider;
  
  import lombok.Getter;
  import org.apache.skywalking.oap.log.analyzer.module.LogAnalyzerModule;
  import org.apache.skywalking.oap.log.analyzer.provider.log.ILogAnalyzerService;
  import org.apache.skywalking.oap.log.analyzer.provider.log.LogAnalyzerServiceImpl;
  import org.apache.skywalking.oap.log.analyzer.provider.log.listener.LogFilterListener;
  import org.apache.skywalking.oap.server.configuration.api.ConfigurationModule;
  import org.apache.skywalking.oap.server.core.CoreModule;
  import org.apache.skywalking.oap.server.library.module.ModuleDefine;
  import org.apache.skywalking.oap.server.library.module.ModuleProvider;
  import org.apache.skywalking.oap.server.library.module.ModuleStartException;
  import org.apache.skywalking.oap.server.library.module.ServiceNotProvidedException;
  
  public class LogAnalyzerModuleProvider extends ModuleProvider {
      @Getter
      private LogAnalyzerModuleConfig moduleConfig;
  
      private LogAnalyzerServiceImpl logAnalyzerService;
  
      @Override
      public String name() {
          return "default";
      }
  
      @Override
      public Class<? extends ModuleDefine> module() {
          return LogAnalyzerModule.class;
      }
  
      @Override
      public ConfigCreator newConfigCreator() {
          return new ConfigCreator<LogAnalyzerModuleConfig>() {
              @Override
              public Class type() {
                  return LogAnalyzerModuleConfig.class;
              }
  
              @Override
              public void onInitialized(final LogAnalyzerModuleConfig initialized) {
                  moduleConfig = initialized;
              }
          };
      }
  
      @Override
      public void prepare() throws ServiceNotProvidedException, ModuleStartException {
          logAnalyzerService = new LogAnalyzerServiceImpl(getManager(), moduleConfig);
          this.registerServiceImplementation(ILogAnalyzerService.class, logAnalyzerService);
      }
  
      @Override
      public void start() throws ServiceNotProvidedException, ModuleStartException {
          try {
              logAnalyzerService.addListenerFactory(new LogFilterListener.Factory(getManager(), moduleConfig));
          } catch (final Exception e) {
              throw new ModuleStartException("Failed to create LAL listener.", e);
          }
      }
  
      @Override
      public void notifyAfterCompleted() throws ServiceNotProvidedException {
  
      }
  
      @Override
      public String[] requiredModules() {
          return new String[] {
              CoreModule.NAME,
              ConfigurationModule.NAME
          };
      }
  }
  