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.server.tool.profile.exporter;
  
  import lombok.extern.slf4j.Slf4j;
  import org.apache.skywalking.oap.server.library.module.ApplicationConfiguration;
  import org.apache.skywalking.oap.server.library.module.ModuleManager;
  import org.apache.skywalking.oap.server.starter.config.ApplicationConfigLoader;
  
  import java.io.File;
  
  @Slf4j
  public class ProfileSnapshotExporterBootstrap {
      public static void export(String[] args) {
          ApplicationConfigLoader configLoader = new ApplicationConfigLoader();
          ModuleManager manager = new ModuleManager();
          try {
              // parse config and init
              ExporterConfig exporterConfig = ExporterConfig.parse(args);
              exporterConfig.init();
  
              // init OAP
              ApplicationConfiguration applicationConfiguration = configLoader.load();
              manager.init(applicationConfiguration);
  
              // prepare basic info
              ProfiledBasicInfo profiledBaseInfo = ProfiledBasicInfo.build(exporterConfig, manager);
              log.info("Queried profiled basic info, segment count: {}, total span count:{}",
                      profiledBaseInfo.getSegments().size(),
                      profiledBaseInfo.getProfiledSegmentSpans().size());
  
              // write basic info to file
              File basicInfoFile = profiledBaseInfo.writeFile();
              log.info("Write segment info to file:{}", basicInfoFile.getAbsolutePath());
  
              // query and writing snapshot
              File snapshotFile = ProfileSnapshotDumper.dump(profiledBaseInfo, manager);
              log.info("Write snapshot to file:{}", snapshotFile);
  
              // exit program
              System.exit(0);
          } catch (Throwable t) {
              log.error(t.getMessage(), t);
              System.exit(1);
          }
      }
  }
  