gt:             for (Entry<String, String> e : kvMap.entrySet()) {
context: /* This file is part of VoltDB.
   * Copyright (C) 2008-2017 VoltDB Inc.
   *
   * This program is free software: you can redistribute it and/or modify
   * it under the terms of the GNU Affero General Public License as
   * published by the Free Software Foundation, either version 3 of the
   * License, or (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU Affero General Public License for more details.
   *
   * You should have received a copy of the GNU Affero General Public License
   * along with VoltDB.  If not, see <http://www.gnu.org/licenses/>.
   */
  
  package org.voltdb;
  
  import java.io.Console;
  import java.io.IOException;
  import java.lang.annotation.ElementType;
  import java.lang.annotation.Retention;
  import java.lang.annotation.RetentionPolicy;
  import java.lang.annotation.Target;
  import java.lang.reflect.Field;
  import java.util.Map;
  import java.util.Map.Entry;
  import java.util.TreeMap;
  
  import org.apache.commons_voltpatches.cli.CommandLine;
  import org.apache.commons_voltpatches.cli.CommandLineParser;
  import org.apache.commons_voltpatches.cli.HelpFormatter;
  import org.apache.commons_voltpatches.cli.Options;
  import org.apache.commons_voltpatches.cli.PosixParser;
  
  public abstract class CLIConfig {
  
      @Retention(RetentionPolicy.RUNTIME) // Make this annotation accessible at runtime via reflection.
      @Target({ElementType.FIELD})       // This annotation can only be applied to class methods.
      public @interface Option {
          String opt() default "";
          String shortOpt() default "";
          boolean hasArg() default true;
          boolean required() default false;
          String desc() default "";
      }
  
      @Retention(RetentionPolicy.RUNTIME) // Make this annotation accessible at runtime via reflection.
      @Target({ElementType.FIELD})       // This annotation can only be applied to class methods.
      public @interface AdditionalArgs {
          String opt() default "";
          boolean hasArg() default false;
          boolean required() default false;
          String desc() default "";
      }
  
      // Apache Commons CLI API - requires JAR
      protected final Options options = new Options();
      protected Options helpmsgs = new Options();
      protected String cmdName = "command";
  
      protected String configDump;
      protected String usage;
  
      public void exitWithMessageAndUsage(String msg) {
          System.err.println(msg);
          printUsage();
          System.exit(-1);
      }
  
      public void printUsage() {
          // automatically generate the help statement
          HelpFormatter formatter = new HelpFormatter();
          formatter.printHelp(cmdName, helpmsgs, false);
      }
  
      private void assignValueToField(Field field, String value) throws Exception {
          if ((value == null) || (value.length() == 0)) {
              return;
          }
  
          field.setAccessible(true);
          Class<?> cls = field.getType();
  
          if ((cls == boolean.class) || (cls == Boolean.class)) {
              field.set(this, Boolean.parseBoolean(value));
          } else if ((cls == byte.class) || (cls == Byte.class)) {
              field.set(this, Byte.parseByte(value));
          } else if ((cls == short.class) || (cls == Short.class)) {
              field.set(this, Short.parseShort(value));
          } else if ((cls == int.class) || (cls == Integer.class)) {
              field.set(this, Integer.parseInt(value));
          } else if ((cls == long.class) || (cls == Long.class)) {
              field.set(this, Long.parseLong(value));
          } else if ((cls == float.class) || (cls == Float.class)) {
              field.set(this, Float.parseFloat(value));
          } else if ((cls == double.class) || (cls == Double.class)) {
              field.set(this, Double.parseDouble(value));
          } else if ((cls == String.class)) {
              field.set(this, value);
          } else if (value.length() == 1 && ((cls == char.class) || (cls == Character.class))) {
              field.set(this, value.charAt(0));
          } else {
                  System.err.println("Parsing failed. Reason: can not assign " + value + " to "
                                  + cls.toString() + " class");
                  printUsage();
              System.exit(-1);
          }
  
      }
  
      public void parse(String cmdName, String[] args) {
          this.cmdName = cmdName;
  
          try {
              options.addOption("help","h", false, "Print this message");
              // add all of the declared options to the cli
              for (Field field : getClass().getDeclaredFields()) {
                  if (field.isAnnotationPresent(Option.class)) {
                          Option option = field.getAnnotation(Option.class);
  
                      String opt = option.opt();
                      if ((opt == null) || (opt.trim().length() == 0)) {
                          opt = field.getName();
                      }
                      String shortopt = option.shortOpt();
                      if ((shortopt == null) || (shortopt.trim().length() == 0)) {
                          options.addOption(null, opt, option.hasArg(), option.desc());
                          helpmsgs.addOption(null, opt, option.hasArg(), option.desc());
                      } else {
                          options.addOption(shortopt, opt, option.hasArg(), option.desc());
                          helpmsgs.addOption(shortopt, opt, option.hasArg(), option.desc());
                      }
                  } else if (field.isAnnotationPresent(AdditionalArgs.class)) {
                          AdditionalArgs params = field.getAnnotation(AdditionalArgs.class);
                          String opt = params.opt();
                          if ((opt == null) || (opt.trim().length() == 0)) {
                          opt = field.getName();
                      }
                          options.addOption(opt, params.hasArg(), params.desc());
                  }
              }
  
              CommandLineParser parser = new PosixParser();
              CommandLine cmd = parser.parse(options, args);
  
              if (cmd.hasOption("help")) {
                  printUsage();
                  System.exit(0);
              }
              String[] leftargs = cmd.getArgs();
              int leftover = 0;
              // string key-value pairs
              Map<String, String> kvMap = new TreeMap<String, String>();
  
              for (Field field : getClass().getDeclaredFields()) {
                  if (field.isAnnotationPresent(Option.class) ) {
                           Option option = field.getAnnotation(Option.class);
                       String opt = option.opt();
                       if ((opt == null) || (opt.trim().length() == 0)) {
                           opt = field.getName();
                       }
  
                       if (cmd.hasOption(opt)) {
                           if (option.hasArg()) {
                               assignValueToField(field, cmd.getOptionValue(opt));
                           }
                           else {
                               if (field.getType().equals(boolean.class) || field.getType().equals(Boolean.class)) {
                                  field.setAccessible(true);
                                  try {
                                       field.set(this, true);
                                   } catch (Exception e) {
                                       throw new IllegalArgumentException (e);
                                   }
                               }
                               else {
                                   printUsage();
                               }
                           }
                       }
                       else {
                           if (option.required()) {
                               printUsage();
                           }
                       }
  
                       field.setAccessible(true);
                       kvMap.put(opt, field.get(this).toString());
                  } else if (field.isAnnotationPresent(AdditionalArgs.class)) {
                          // Deal with --table=BLHA, offer nice error message later
                          leftover++;
                  }
              }
              if (leftargs != null) {
                  if (leftargs.length <= leftover) {
                          Field[] fields = getClass().getDeclaredFields();
                      for (int i = 0,j=0; i<leftargs.length; i++) {
                          for (;j < fields.length; j++) {
                                  if (fields[j].isAnnotationPresent(AdditionalArgs.class)) {
                                      break;
                                  }
                          }
                          fields[j].setAccessible(true);
                          fields[j].set(this, leftargs[i]);
                      }
                  } else {
                          System.err.println("Expected " + leftover + " args, but receive " + leftargs.length + " args");
                          printUsage();
                          System.exit(-1);
                  }
              }
  
              // check that the values read are valid
              // this code is specific to your app
              validate();
  
              // build a debug string
              StringBuilder sb = new StringBuilder();
  