com.caucho.amqp.io.FrameDetach Maven / Gradle / Ivy

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/*
 * Copyright (c) 1998-2018 Caucho Technology -- all rights reserved
 *
 * This file is part of Resin(R) Open Source
 *
 * Each copy or derived work must preserve the copyright notice and this
 * notice unmodified.
 *
 * Resin Open Source 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.
 *
 * Resin Open Source 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 Resin Open Source; 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.amqp.io;

import java.io.IOException;


/**
 * AMQP link detach
 */
public class FrameDetach extends AmqpAbstractFrame {
  public static final int CODE = AmqpConstants.FT_LINK_DETACH;

  private int _handle; // uint(required)
  private boolean _isClosed;
  private AmqpError _error;
  
  public int getHandle()
  {
    return _handle;
  }
  
  public void setHandle(int handle)
  {
    _handle = handle;
  }
  
  public boolean isClosed()
  {
    return _isClosed;
  }
  
  public AmqpError getError()
  {
    return _error;
  }
  
  @Override
  public long getDescriptorCode()
  {
    return FT_LINK_DETACH;
  }
  
  @Override
  public FrameDetach createInstance()
  {
    return new FrameDetach();
  }
  
  @Override
  public void invoke(AmqpReader ain, AmqpFrameHandler handler)
    throws IOException
  {
    handler.onDetach(this);
  }
  
  @Override
  public void readBody(AmqpReader in, int count)
    throws IOException
  {
    _handle = in.readInt();
    _isClosed = in.readBoolean();
    _error = in.readObject(AmqpError.class);
  }
  
  @Override
  public int writeBody(AmqpWriter out)
    throws IOException
  {
    out.writeUint(_handle);
    out.writeBoolean(_isClosed);
    
    if (_error != null) {
      _error.write(out);
    }
    else {
      out.writeNull();
    }
    
    return 3;
  }
  
  @Override
  public String toString()
  {
    StringBuilder sb = new StringBuilder();
    
    sb.append(getClass().getSimpleName());
    sb.append("[").append(_handle);
    
    if (_isClosed) {
      sb.append(",closed");
    }
    
    sb.append("]");
    
    return sb.toString();
  }
}