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 "Hessian", "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.services.server;
  
  import java.io.InputStream;
  import java.lang.reflect.Method;
  import java.util.HashMap;
  
  /**
   * Proxy class for Hessian services.
   */
  abstract public class AbstractSkeleton {
    private Class _apiClass;
    private Class _homeClass;
    private Class _objectClass;
    
    private HashMap _methodMap = new HashMap();
  
    /**
     * Create a new hessian skeleton.
     *
     * @param apiClass the API interface
     */
    protected AbstractSkeleton(Class apiClass)
    {
      _apiClass = apiClass;
      
      Method []methodList = apiClass.getMethods();
  
      for (int i = 0; i < methodList.length; i++) {
        Method method = methodList[i];
  
        if (_methodMap.get(method.getName()) == null)
          _methodMap.put(method.getName(), methodList[i]);
  
        Class []param = method.getParameterTypes();
        String mangledName = method.getName() + "__" + param.length;
        _methodMap.put(mangledName, methodList[i]);
        
        _methodMap.put(mangleName(method, false), methodList[i]);
      }
    }
  
    /**
     * Returns the API class of the current object.
     */
    public String getAPIClassName()
    {
      return _apiClass.getName();
    }
  
    /**
     * Returns the API class of the factory/home.
     */
    public String getHomeClassName()
    {
      if (_homeClass != null)
        return _homeClass.getName();
      else
        return getAPIClassName();
    }
  
    /**
     * Sets the home API class.
     */
    public void setHomeClass(Class homeAPI)
    {
      _homeClass = homeAPI;
    }
  
    /**
     * Returns the API class of the object URLs
     */
    public String getObjectClassName()
    {
      if (_objectClass != null)
        return _objectClass.getName();
      else
        return getAPIClassName();
    }
  
    /**
     * Sets the object API class.
     */
    public void setObjectClass(Class objectAPI)
    {
      _objectClass = objectAPI;
    }
  
    /**
     * Returns the method by the mangled name.
     *
     * @param mangledName the name passed by the protocol
     */
    protected Method getMethod(String mangledName)
    {
      return (Method) _methodMap.get(mangledName);
    }
  
    /**
     * Creates a unique mangled method name based on the method name and
     * the method parameters.
     *
     * @param method the method to mangle
     * @param isFull if true, mangle the full classname
     *
     * @return a mangled string.
     */
    public static String mangleName(Method method, boolean isFull)
    {
      StringBuffer sb = new StringBuffer();
      
      sb.append(method.getName());
      
      Class []params = method.getParameterTypes();
      for (int i = 0; i < params.length; i++) {
        sb.append('_');
        sb.append(mangleClass(params[i], isFull));
      }
  
      return sb.toString();
    }
  
    /**
     * Mangles a classname.
     */
    public static String mangleClass(Class cl, boolean isFull)
    {
      String name = cl.getName();
  
      if (name.equals("boolean") || name.equals("java.lang.Boolean"))
        return "boolean";
      else if (name.equals("int") || name.equals("java.lang.Integer")
               || name.equals("short") || name.equals("java.lang.Short")
               || name.equals("byte") || name.equals("java.lang.Byte"))
        return "int";
      else if (name.equals("long") || name.equals("java.lang.Long"))
        return "long";
      else if (name.equals("float") || name.equals("java.lang.Float")
               || name.equals("double") || name.equals("java.lang.Double"))
        return "double";
      else if (name.equals("java.lang.String")
               || name.equals("com.caucho.util.CharBuffer")
               || name.equals("char") || name.equals("java.lang.Character")
               || name.equals("java.io.Reader"))
        return "string";
      else if (name.equals("java.util.Date")
               || name.equals("com.caucho.util.QDate"))
        return "date";
      else if (InputStream.class.isAssignableFrom(cl)
               || name.equals("[B"))
        return "binary";
      else if (cl.isArray()) {
        return "[" + mangleClass(cl.getComponentType(), isFull);
      }
      else if (name.equals("org.w3c.dom.Node")
               || name.equals("org.w3c.dom.Element")
               || name.equals("org.w3c.dom.Document"))
        return "xml";
      else if (isFull)
        return name;
      else {
        int p = name.lastIndexOf('.');
        if (p > 0)
          return name.substring(p + 1);
        else
          return name;
      }
    }
  
    public String toString()
    {
      return getClass().getSimpleName() + "[" + _apiClass.getName() + "]";
    }
  }
  