org.apache.ibatis.migration.commands.Commands Maven / Gradle / Ivy

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package org.apache.ibatis.migration.commands;

import org.apache.ibatis.migration.MigrationException;
import org.apache.ibatis.migration.options.SelectedOptions;

public enum Commands {
  INFO,
  INIT,
  BOOTSTRAP,
  NEW,
  UP,
  DOWN,
  PENDING,
  SCRIPT,
  VERSION,
  STATUS;

  public static Command resolveCommand(String commandString, SelectedOptions selectedOptions) {
    for (Commands command : values()) {
      if (command.name().startsWith(commandString)) {
        return createCommand(command, selectedOptions);
      }
    }

    throw new MigrationException("Attempt to execute unknown command: " + commandString);
  }

  private static Command createCommand(Commands aResolvedCommand, SelectedOptions selectedOptions) {
    switch (aResolvedCommand) {
      case INFO:
        return new InfoCommand(System.out);
      case INIT:
        return new InitializeCommand(selectedOptions);
      case BOOTSTRAP:
        return new BootstrapCommand(selectedOptions);
      case NEW:
        return new NewCommand(selectedOptions);
      case UP:
        return new UpCommand(selectedOptions);
      case DOWN:
        return new DownCommand(selectedOptions);
      case PENDING:
        return new PendingCommand(selectedOptions);
      case SCRIPT:
        return new ScriptCommand(selectedOptions);
      case VERSION:
        return new VersionCommand(selectedOptions);
      case STATUS:
        return new StatusCommand(selectedOptions);
      default:
        return new Command() {
          public void execute(String... params) {
            System.out.println("unknown command");
          }
        };
    }
  }
}