content: package com.taobao.arthas.core.command.basic1000;
  
  import com.taobao.arthas.core.command.Constants;
  import com.taobao.arthas.core.command.model.EchoModel;
  import com.taobao.arthas.core.shell.command.AnnotatedCommand;
  import com.taobao.arthas.core.shell.command.CommandProcess;
  import com.taobao.middleware.cli.annotations.Argument;
  import com.taobao.middleware.cli.annotations.Description;
  import com.taobao.middleware.cli.annotations.Name;
  import com.taobao.middleware.cli.annotations.Summary;
  
  /**
   * 
   * @author hengyunabc
   *
   */
  @Name("echo")
  @Summary("write arguments to the standard output")
  @Description("\nExamples:\n" +
          "  echo 'abc'\n" +
          Constants.WIKI + Constants.WIKI_HOME + "echo")
  public class EchoCommand extends AnnotatedCommand {
      private String message;
  
      @Argument(argName = "message", index = 0, required = false)
      @Description("message")
      public void setMessage(String message) {
          this.message = message;
      }
  
      @Override
      public void process(CommandProcess process) {
          if (message != null) {
              process.appendResult(new EchoModel(message));
          }
  
          process.end();
      }
  
  }
  