Examples of org.apache.sshd.server.Command

org.apache.sshd.server.Command
Represents a command, shell or subsystem that can be used to send command. This command have direct streams, meaning those streams will be provided by the ssh server for the shell to use directy. This interface is suitable for implementing commands in java, rather than using external processes. For wrapping such processes or using inverted streams, see {@link org.apache.sshd.server.shell.InvertedShellWrapper}.

    sshd.setShellFactory(new Factory<Command>() {


      @Override
      public Command create() {


        return new Command() {


          private InputStream in;
          private OutputStream out;
          private Shell shell;
          private ExitCallback ec;

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        }


        Cmdlet cmdlet = null;
        try {
            cmdlet = buildCommand(tokens);
            Command command = parseCommand(cmdlet, tokens);
            return command;
        } catch (CmdLineException e) {
            Command command = new PrintErrorCommand(e.getMessage(), cmdlet);
            return command;
        } catch (Exception e) {
            log.warn("Error building command for line: " + line, e);
            Command command = new PrintErrorCommand("Error building command for line: " + line, cmdlet);
            return command;
        }
    }

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    return r.toString();
  }


  @Override
  public void destroy() {
    Command cmd = atomicCmd.getAndSet(null);
    if (cmd != null) {
        cmd.destroy();
    }
  }

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            (getName().isEmpty() ? "Gerrit Code Review" : getName()) + ": "
                + commandName + ": not found";
        throw new UnloggedFailure(1, msg);
      }


      final Command cmd = p.get();
      checkRequiresCapability(cmd);
      if (cmd instanceof BaseCommand) {
        final BaseCommand bc = (BaseCommand) cmd;
        if (getName().isEmpty())
          bc.setName(commandName);
        else
          bc.setName(getName() + " " + commandName);
        bc.setArguments(args.toArray(new String[args.size()]));


      } else if (!args.isEmpty()) {
        throw new UnloggedFailure(1, commandName + " does not take arguments");
      }


      provideStateTo(cmd);
      atomicCmd.set(cmd);
      cmd.start(env);


    } catch (UnloggedFailure e) {
      String msg = e.getMessage();
      if (!msg.endsWith("\n")) {
        msg += "\n";

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    }
  }


  @Override
  public void destroy() {
    Command cmd = atomicCmd.getAndSet(null);
    if (cmd != null) {
        cmd.destroy();
    }
  }

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      Provider<? extends Command> p = map.get(name);
      if (p == null) {
        throw new UnloggedFailure(1, getName() + ": not found");
      }


      Command cmd = p.get();
      if (!(cmd instanceof DispatchCommand)) {
        throw new UnloggedFailure(1, getName() + ": not found");
      }
      map = ((DispatchCommand) cmd).getMap();
    }


    Provider<? extends Command> p = map.get(command.value());
    if (p == null) {
      throw new UnloggedFailure(1, getName() + ": not found");
    }


    Command cmd = p.get();
    checkRequiresCapability(cmd);
    if (cmd instanceof BaseCommand) {
      BaseCommand bc = (BaseCommand)cmd;
      bc.setName(getName());
      bc.setArguments(getArguments());
    }
    provideStateTo(cmd);
    atomicCmd.set(cmd);
    cmd.start(env);
  }

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    cmd.start(env);
  }


  @Override
  public void destroy() {
    Command cmd = atomicCmd.getAndSet(null);
    if (cmd != null) {
        cmd.destroy();
    }
  }

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    //
    log.log(Level.FINE, "About to execute shell command " + command);


    for (CommandPlugin plugin : pluginContext.getPlugins(CommandPlugin.class)) {
      Command cmd = plugin.createCommand(command);
      if (cmd != null) {
        return cmd;
      }
    }

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        prepareServer(true);
        server.start();
        try {
            org.apache.sshd.SshServer sshd = (org.apache.sshd.SshServer) ReflectionTestUtils.getField(server, "sshd");
            CommandFactory fact = sshd.getCommandFactory();
            Command cmd = fact.createCommand("shutdown now");
            assertTrue(cmd instanceof SshCommand);
            assertEquals(((SshCommand) cmd).getCommand(),"shutdown now");
        } finally {
            server.stop();
        }

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            (prefix.isEmpty() ? "Gerrit Code Review" : prefix) + ": "
                + commandName + ": not found";
        throw new UnloggedFailure(1, msg);
      }


      final Command cmd = p.get();


      if (isAdminCommand(cmd) && !currentUser.get().isAdministrator()) {
        final String msg = "fatal: Not a Gerrit administrator";
        throw new UnloggedFailure(BaseCommand.STATUS_NOT_ADMIN, msg);
      }


      if (cmd instanceof BaseCommand) {
        final BaseCommand bc = (BaseCommand) cmd;
        if (prefix.isEmpty())
          bc.setName(commandName);
        else
          bc.setName(prefix + " " + commandName);
        bc.setArguments(args.toArray(new String[args.size()]));


      } else if (!args.isEmpty()) {
        throw new UnloggedFailure(1, commandName + " does not take arguments");
      }


      provideStateTo(cmd);


      synchronized (this) {
        this.cmd = cmd;
      }
      cmd.start(env);


    } catch (UnloggedFailure e) {
      String msg = e.getMessage();
      if (!msg.endsWith("\n")) {
        msg += "\n";

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