content: /*
   * 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.cassandra.fqltool;
  
  import com.google.common.base.Throwables;
  
  import org.apache.cassandra.config.DatabaseDescriptor;
  import org.apache.cassandra.fqltool.commands.Compare;
  import org.apache.cassandra.fqltool.commands.Dump;
  import org.apache.cassandra.fqltool.commands.Replay;
  import picocli.CommandLine;
  import picocli.CommandLine.Command;
  
  import static com.google.common.base.Throwables.getStackTraceAsString;
  
  @Command(name = "fqltool",
           description = "Manipulate the contents of full query log files",
           subcommands = { CommandLine.HelpCommand.class, Dump.class, Replay.class, Compare.class })
  public class FullQueryLogTool implements Runnable
  {
      public static void main(String... args)
      {
          DatabaseDescriptor.clientInitialization();
          CommandLine commandLine = new CommandLine(FullQueryLogTool.class);
          commandLine.setExecutionExceptionHandler((ex, c, arg) -> {
                         // Used for backward compatibility, some commands are validated when a command is run.
                         if (ex instanceof IllegalArgumentException | ex instanceof IllegalStateException)
                         {
                             badUse(ex);
                             return 1;
                         }
                         err(Throwables.getRootCause(ex));
                         return 2;
                     })
                     .setParameterExceptionHandler((ex, arg) -> {
                         badUse(ex);
                         return 1;
                     });
  
          System.exit(commandLine.execute(args));
      }
  
      @Override
      public void run()
      {
          CommandLine.usage(this, System.out);
      }
  
      private static void badUse(Exception e)
      {
          System.out.println("fqltool: " + e.getMessage());
          System.out.println("See 'fqltool help' or 'fqltool help <command>'.");
      }
  
      private static void err(Throwable e)
      {
          System.err.println("error: " + e.getMessage());
          System.err.println("-- StackTrace --");
          System.err.println(getStackTraceAsString(e));
      }
  }
  