content: /*
   * Copyright (c) 2001-2004 Caucho Technology, Inc.  All rights reserved.
   *
   * The Apache Software License, Version 1.1
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Caucho Technology (http://www.caucho.com/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "Burlap", "Resin", and "Caucho" must not be used to
   *    endorse or promote products derived from this software without prior
   *    written permission. For written permission, please contact
   *    info@caucho.com.
   *
   * 5. Products derived from this software may not be called "Resin"
   *    nor may "Resin" appear in their names without prior written
   *    permission of Caucho Technology.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL CAUCHO TECHNOLOGY OR ITS CONTRIBUTORS
   * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
   * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
   * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
   * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
   * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
   * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   * @author Scott Ferguson
   */
  
  package com.caucho.burlap.server;
  
  import com.caucho.burlap.io.BurlapInput;
  import com.caucho.burlap.io.BurlapOutput;
  import com.caucho.services.server.AbstractSkeleton;
  import com.caucho.services.server.ServiceContext;
  
  import java.lang.reflect.InvocationTargetException;
  import java.lang.reflect.Method;
  import java.util.logging.Level;
  import java.util.logging.Logger;
  
  /**
   * Proxy class for Burlap services.
   */
  public class BurlapSkeleton extends AbstractSkeleton {
    private static final Logger log
      = Logger.getLogger(BurlapSkeleton.class.getName());
    
    private Object _service;
    
    /**
     * Create a new burlap skeleton.
     *
     * @param service the underlying service object.
     * @param apiClass the API interface
     */
    public BurlapSkeleton(Object service, Class apiClass)
    {
      super(apiClass);
  
      _service = service;
    }
    
    /**
     * Create a new burlap skeleton.
     *
     * @param service the underlying service object.
     * @param apiClass the API interface
     */
    public BurlapSkeleton(Class apiClass)
    {
      super(apiClass);
    }
  
    /**
     * Invoke the object with the request from the input stream.
     *
     * @param in the Burlap input stream
     * @param out the Burlap output stream
     */
    public void invoke(BurlapInput in, BurlapOutput out)
      throws Exception
    {
      invoke(_service, in, out);
    }
  
    /**
     * Invoke the object with the request from the input stream.
     *
     * @param in the Burlap input stream
     * @param out the Burlap output stream
     */
    public void invoke(Object service, BurlapInput in, BurlapOutput out)
      throws Exception
    {
      in.readCall();
  
      ServiceContext context = ServiceContext.getContext();
      
      String header;
      while ((header = in.readHeader()) != null) {
        Object value = in.readObject();
  
        context.addHeader(header, value);
      }
  
      String methodName = in.readMethod();
      Method method = getMethod(methodName);
  
      if (log.isLoggable(Level.FINE))
        log.fine(this + " invoking " + methodName + " (" + method + ")");
  
      if (method != null) {
      }
      else if ("_burlap_getAttribute".equals(in.getMethod())) {
        String attrName = in.readString();
        in.completeCall();
  
        String value = null;
  
        if ("java.api.class".equals(attrName))
          value = getAPIClassName();
        else if ("java.home.class".equals(attrName))
          value = getHomeClassName();
        else if ("java.object.class".equals(attrName))
          value = getObjectClassName();
  
        out.startReply();
  
        out.writeObject(value);
  
        out.completeReply();
        return;
      }
      else if (method == null) {
        out.startReply();
        out.writeFault("NoSuchMethodException",
                       "The service has no method named: " + in.getMethod(),
                       null);
        out.completeReply();
        return;
      }
  
      Class []args = method.getParameterTypes();
      Object []values = new Object[args.length];
  
      for (int i = 0; i < args.length; i++)
        values[i] = in.readObject(args[i]);
  
      in.completeCall();
  
      Object result = null;
      
      try {
        result = method.invoke(service, values);
      } catch (Throwable e) {
        log.log(Level.FINE,
                service + "." + method.getName() + "() failed with exception:\n"
                + e.toString(),
                e);
        
        if (e instanceof InvocationTargetException
            && e.getCause() instanceof Exception)
          e = ((InvocationTargetException) e).getTargetException();
        out.startReply();
        out.writeFault("ServiceException", e.getMessage(), e);
        out.completeReply();
        return;
      }
  
      out.startReply();
  
      out.writeObject(result);
      
      out.completeReply();
    }
  }
  