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  /*
   * Copyright (c) 2003 The Visigoth Software Society. All rights
   * reserved.
   *
   * 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 acknowledgement:
  *       "This product includes software developed by the
  *        Visigoth Software Society (http://www.visigoths.org/)."
  *    Alternately, this acknowledgement may appear in the software itself,
  *    if and wherever such third-party acknowledgements normally appear.
  *
  * 4. Neither the name "FreeMarker", "Visigoth", nor any of the names of the 
  *    project contributors may be used to endorse or promote products derived
  *    from this software without prior written permission. For written
  *    permission, please contact visigoths@visigoths.org.
  *
  * 5. Products derived from this software may not be called "FreeMarker" or "Visigoth"
  *    nor may "FreeMarker" or "Visigoth" appear in their names
  *    without prior written permission of the Visigoth Software Society.
  *
  * 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 THE VISIGOTH SOFTWARE SOCIETY 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.
  * ====================================================================
  *
  * This software consists of voluntary contributions made by many
  * individuals on behalf of the Visigoth Software Society. For more
  * information on the Visigoth Software Society, please see
  * http://www.visigoths.org/
  */
 
 package freemarker.ext.jython;
 
 import java.util.List;
 
 import  org.python.core.Py;
 import  org.python.core.PyException;
 import  org.python.core.PyObject;
 
Generic model for arbitrary Jython objects.

Author(s):
Attila Szegedi
Version:
$Id: JythonModel.java,v 1.14 2005/06/12 19:03:06 szegedia Exp $
 
 public class JythonModel
 {
     protected final PyObject object;
     protected final JythonWrapper wrapper;
     
     static final ModelFactory FACTORY =
         new ModelFactory()
         {
             public TemplateModel create(Object objectObjectWrapper wrapper)
             {
                 return new JythonModel((PyObject)object, (JythonWrapper)wrapper);
             }
         };
         
     public JythonModel(PyObject objectJythonWrapper wrapper)
     {
         this. = object;
         this. = wrapper;
     }

    
Returns the value of PyObject.__nonzero__().
    public boolean getAsBoolean() throws TemplateModelException
    {
        try
        {
            return .__nonzero__();
        }
        catch(PyException e)
        {
            throw new TemplateModelException(e);
        }
    }

    
Returns the value of Object.toString().
    public String getAsString() throws TemplateModelException
    {
        try
        {
            return .toString();
        }
        catch(PyException e)
        {
            throw new TemplateModelException(e);
        }
    }

    
Calls PyObject.__findattr__(java.lang.String), then if it returns null calls PyObject.__finditem__(java.lang.String). If JythonWrapper.setAttributesShadowItems(boolean) was called with false, the order of calls is reversed (that is, item lookup takes precedence over attribute lookup).
    public TemplateModel get(String key)
    throws
    {
        if(key != null)
        {
            key = key.intern();
        }
        
        PyObject obj = null;
        
        try
        {
            if(.isAttributesShadowItems())
            {
                obj = .__findattr__(key);
                if(obj == null)
                {
                    obj = .__finditem__(key);
                }
            }
            else
            {
                obj = .__finditem__(key);
                if(obj == null)
                {
                    obj = .__findattr__(key);
                }
            }
        }
        catch(PyException e)
        {
            throw new TemplateModelException(e);
        }
        return .wrap(obj);
    }
    
    
Returns PyObject.__len__() == 0.
    public boolean isEmpty() throws TemplateModelException
    {
        try
        {
            return .__len__() == 0;
        }
        catch(PyException e)
        {
            throw new TemplateModelException(e);
        }
    }

    

See also:
freemarker.template.TemplateMethodModel.exec(List)
    public Object exec(List argumentsthrows TemplateModelException
    {
        int size = arguments.size();
        try
        {
            switch(size)
            {
                case 0:
                {
                    return .wrap(.__call__());
                }
                case 1:
                {
                    return .wrap(.__call__(.unwrap(
                        (TemplateModel)arguments.get(0))));
                }
                default:
                {
                    PyObject[] pyargs = new PyObject[size];
                    int i = 0;
                    for (Iterator arg = arguments.iterator(); arg.hasNext();)
                    {
                        pyargs[i++] = .unwrap(
                            (TemplateModelarg.next());
                    }
                    return .wrap(.__call__(pyargs));
                }
            }
        }
        catch(PyException e)
        {
            throw new TemplateModelException(e);
        }
    }
    public Object getAdaptedObject(Class hint) {
        if( == null) {
            return null;
        }
        Object view = .__tojava__(hint);
        if(view == Py.NoConversion) {
            view = .__tojava__(Object.class);
        }
        return view;
    }
    
    public Object getWrappedObject() {
        return  == null ? null : .__tojava__(Object.class);
    }
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