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Æsh (Another Extendable SHell) Terminal Telnet

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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2017 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.terminal.telnet.netty;

import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandlerContext;
import org.aesh.terminal.telnet.TelnetConnection;
import org.aesh.terminal.telnet.TelnetHandler;

import java.util.concurrent.TimeUnit;

/**
 * @author Julien Viet
 */
public class NettyTelnetConnection extends TelnetConnection {

  final ChannelHandlerContext context;

  public NettyTelnetConnection(TelnetHandler handler, ChannelHandlerContext context) {
    super(handler);
    this.context = context;
  }

  @Override
  protected void execute(Runnable task) {
    context.channel().eventLoop().execute(task);
  }

  @Override
  protected void schedule(Runnable task, long delay, TimeUnit unit) {
    context.channel().eventLoop().schedule(task, delay, unit);
  }

  // Not properly synchronized, but ok for now
  @Override
  protected void send(byte[] data) {
    context.writeAndFlush(Unpooled.buffer().writeBytes(data));
  }

  @Override
  protected void onClose() {
    super.onClose();
  }

  @Override
  public void close() {
    context.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
  }
}