content: /*
   * JBoss, Home of Professional Open Source
   * Copyright 2014 Red Hat Inc. and/or its affiliates and other contributors
   * as indicated by the @authors tag. All rights reserved.
   * See the copyright.txt in the distribution for a
   * full listing of individual contributors.
   *
   * Licensed 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.aesh.command.operator;
  
  import org.aesh.command.CommandException;
  import org.aesh.command.activator.CommandActivator;
  import org.aesh.command.activator.OptionActivator;
  import org.aesh.command.completer.CompleterInvocation;
  import org.aesh.command.converter.ConverterInvocation;
  import org.aesh.command.invocation.CommandInvocation;
  import org.aesh.command.option.Argument;
  import org.aesh.command.registry.CommandRegistryException;
  import org.aesh.command.settings.Settings;
  import org.aesh.command.settings.SettingsBuilder;
  import org.aesh.command.CommandDefinition;
  import org.aesh.command.impl.registry.AeshCommandRegistryBuilder;
  import org.aesh.command.Command;
  import org.aesh.command.registry.CommandRegistry;
  import org.aesh.command.CommandResult;
  import org.aesh.command.validator.ValidatorInvocation;
  import org.aesh.io.Resource;
  import org.aesh.readline.ReadlineConsole;
  import org.aesh.tty.TestConnection;
  import org.aesh.terminal.utils.Config;
  import org.junit.Test;
  
  import java.io.BufferedReader;
  import java.io.IOException;
  import java.io.InputStreamReader;
  
  import static org.junit.Assert.assertEquals;
  
  /**
   * @author <a href="mailto:stale.pedersen@jboss.org">Ståle W. Pedersen</a>
   */
  public class AeshCommandPipelineTest {
  
      @Test
      public void testPipeline() throws InterruptedException, IOException, CommandRegistryException {
          TestConnection connection = new TestConnection();
  
          FooCommand foo = new FooCommand();
  
          CommandRegistry registry = AeshCommandRegistryBuilder.builder()
                  .command(PipeCommand.class)
                  .command(BarCommand.class)
                  .command(foo)
                  .create();
  
          Settings<CommandInvocation, ConverterInvocation, CompleterInvocation,
                          ValidatorInvocation, OptionActivator, CommandActivator> settings =
                  SettingsBuilder.builder()
                          .connection(connection)
                          .enableOperatorParser(true)
                          .commandRegistry(registry)
                          .logging(true)
                          .build();
  
          ReadlineConsole console = new ReadlineConsole(settings);
          console.start();
  
          connection.read("pipe | foo" + Config.getLineSeparator());
          Thread.sleep(100);
          assertEquals(1, foo.getCounter());
  
          connection.read("pipe | bar" + Config.getLineSeparator());
          Thread.sleep(100);
          connection.assertBufferEndsWith("hello aesh"+Config.getLineSeparator());
          console.stop();
      }
  
  
      @Test
      public void testEmptyBeforeOperator() throws InterruptedException, IOException, CommandRegistryException {
          TestConnection connection = new TestConnection();
  
          FooCommand foo = new FooCommand();
  
          CommandRegistry registry = AeshCommandRegistryBuilder.builder()
                  .command(PipeCommand.class)
                  .command(BarCommand.class)
                  .command(foo)
                  .create();
  
          Settings<CommandInvocation, ConverterInvocation, CompleterInvocation, ValidatorInvocation,
                          OptionActivator, CommandActivator> settings =
                  SettingsBuilder.builder()
                          .connection(connection)
                          .enableOperatorParser(true)
                          .commandRegistry(registry)
                          .logging(true)
                          .build();
  
          ReadlineConsole console = new ReadlineConsole(settings);
          console.start();
  
          connection.read("&&" + Config.getLineSeparator());
          Thread.sleep(100);
          connection.assertBufferEndsWith("aesh: syntax error near unexpected token \'&&\'"+Config.getLineSeparator());
          console.stop();
      }
  
      @CommandDefinition(name ="pipe", description = "")
      public static class PipeCommand implements Command {
  
          @Override
          public CommandResult execute(CommandInvocation commandInvocation) throws CommandException, InterruptedException {
              commandInvocation.println("hello");
              commandInvocation.println("aesh");
              return CommandResult.SUCCESS;
          }
      }
  
      @CommandDefinition(name = "foo", description = "")
      public static class FooCommand implements Command {
          private int counter = 0;
  
          @Override
          public CommandResult execute(CommandInvocation commandInvocation) throws CommandException, InterruptedException {
              try {
                  if (commandInvocation.getConfiguration().getPipedData().available() > 0) {
                      counter++;
                  }
                  BufferedReader reader = new BufferedReader(new InputStreamReader(commandInvocation.getConfiguration().getPipedData()));
  
                  assertEquals("hello", reader.readLine());
                  assertEquals("aesh", reader.readLine());
              } catch (IOException ex) {
                  throw new CommandException(ex);
              }
              return CommandResult.SUCCESS;
          }
  
          int getCounter() {
              return counter;
          }
      }
  
      @CommandDefinition(name = "bar", description = "")
      public static class BarCommand implements Command {
  
          @Argument
          Resource arg;
  
          @Override
          public CommandResult execute(CommandInvocation commandInvocation) throws CommandException, InterruptedException {
              try {
                  BufferedReader reader = new BufferedReader(new InputStreamReader(arg.read()));
                  commandInvocation.println(reader.readLine() + " " + reader.readLine());
              }
              catch (IOException e) {
                  e.printStackTrace();
              }
  
              return CommandResult.SUCCESS;
          }
  
      }
  
  }
  