com.caucho.v5.bartender.hamp.ChannelServerLinkUnidir Maven / Gradle / Ivy

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A reactive Java web server.
There is a newer version: 1.0.1
/*
 * Copyright (c) 1998-2015 Caucho Technology -- all rights reserved
 *
 * This file is part of Baratine(TM)
 *
 * Each copy or derived work must preserve the copyright notice and this
 * notice unmodified.
 *
 * Baratine is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Baratine is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
 * of NON-INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Baratine; if not, write to the
 *
 *   Free Software Foundation, Inc.
 *   59 Temple Place, Suite 330
 *   Boston, MA 02111-1307  USA
 *
 * @author Scott Ferguson
 */

package com.caucho.v5.bartender.hamp;

import com.caucho.v5.amp.ServicesAmp;
import com.caucho.v5.amp.ServiceRefAmp;
import com.caucho.v5.amp.remote.GatewayReply;
import com.caucho.v5.amp.remote.GatewayReplyBase;
import com.caucho.v5.amp.remote.OutAmp;
import com.caucho.v5.amp.service.ServiceRefNull;
import com.caucho.v5.amp.spi.RegistryAmp;
import com.caucho.v5.amp.spi.ShutdownModeAmp;

/**
 * The registry for a server unidir channel.
 */
public class ChannelServerLinkUnidir extends ChannelServerLink
{
  // private static final Logger log = Logger.getLogger(RegistryHampChannelServerUnidir.class.getName());
  
  private HampManager _hampManager;
  private String _hostName;
  
  // private InboxAmp _writeMailbox;
  
  public ChannelServerLinkUnidir(HampManager hampManager, 
                                    ServicesAmp manager,
                                    RegistryAmp registry,
                                    OutAmp conn)
  {
    super(()->manager, registry, conn, "unidir:", "");
    
    _hampManager = hampManager;
  }
  
  /*
  @Override
  public RampMailbox getWriteMailbox()
  {
    if (_writeMailbox != null) {
      return _writeMailbox;
    }
    else {
      return super.getWriteMailbox();
    }
  }
  */
  
  /**
   * Resin exports its internal services to the cluster.
   */
  @Override
  protected boolean isExported(String address, ServiceRefAmp serviceRef)
  {
    return true;
  }

  @Override
  public GatewayReply createGatewayReply(String address)
  {
    if (address.startsWith("link:")) {
      return super.createGatewayReply(address);
    }
    
    if (! isLogin()) {
      return super.createGatewayReply(address);
    }
    
    String remoteName = null;

    if (_hostName != null) {
      int p = address.indexOf("://");
      
      String scheme = _hampManager.getReplyScheme();

      if (p >= 0) {
        int q = address.indexOf("/", p + 3);
      
        if (q > 0) {
          remoteName = scheme + "//" + _hostName + address.substring(q);
        }
      }
      else if (address.startsWith("/")) {
        remoteName = scheme + "//" + _hostName + address;
      }
    
      if (remoteName == null) {
        remoteName = scheme + "//" + _hostName + "/system";
      }
    }

    ServiceRefAmp serviceRef;

    if (remoteName != null) {
      serviceRef = getDelegate().service(remoteName);
    }
    else {
      serviceRef = new ServiceRefNull(getManager(), "/unexpected/" + address);
    }
    
    if (serviceRef.toString().indexOf("/s/system") >= 0) {
      System.out.println("CGR: " + address + " " + _hostName + " " + remoteName + " " + serviceRef + " " + getDelegate());
    }
    
    return new GatewayReplyBase(serviceRef);
  }

  @Override
  public void setHostName(String hostName)
  {
    _hostName = hostName;
  }
  
  @Override
  public void onLogin(String uid)
  {
    if (isLogin()) {
      return;
    }
    
    super.onLogin(uid);

    _hampManager.onOpen(_hostName);
  }
  
  @Override
  public void shutdown(ShutdownModeAmp mode)
  {
    super.shutdown(mode);

    HampManager hampManager = _hampManager;
    _hampManager = null;
    
    if (isLogin() && hampManager != null) {
      clearLogin();
      
      hampManager.onClose(_hostName);
    }
  }
  
  @Override
  public String toString()
  {
    return getClass().getSimpleName() + "[" + _hostName + "]";
  }
}