/*
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2002 The Apache Software Foundation.  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 acknowlegement:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "The Jakarta Project", "Commons", "Jexl" and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
 *    from this software without prior written permission. For written
 *    permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache"
 *    nor may "Apache" appear in their names without prior written
 *    permission of the Apache Group.
 *
 * 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 APACHE SOFTWARE FOUNDATION 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 Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */
package org.apache.commons.jexl.parser;

import org.apache.commons.jexl.JexlContext;

import java.util.List;
import java.util.Map;
import java.lang.reflect.Array;

/**
 *  generalized size() function for all classes we can think of
 *
 *  @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
 *  @version $Id: ASTSizeFunction.java,v 1.1 2002/04/26 04:23:14 geirm Exp $
 */
public class ASTSizeFunction extends SimpleNode
{
    public ASTSizeFunction(int id)
    {
        super(id);
    }

    public ASTSizeFunction(Parser p, int id)
    {
        super(p, id);
    }


    /** Accept the visitor. **/
    public Object jjtAccept(ParserVisitor visitor, Object data)
    {
        return visitor.visit(this, data);
    }


    public Object value(JexlContext jc)
        throws Exception
    {
        SimpleNode arg = (SimpleNode) jjtGetChild(0);

        Object val = arg.value(jc);

        if (val == null)
        {
            throw new Exception("size() : null arg");
        }
        else if (val instanceof List)
        {
            return new Integer(((List)val).size());
        }
        else if (val.getClass().isArray())
        {
            return new Integer(Array.getLength(val));
        }
        else if (val instanceof Map)
        {
            return new Integer(((Map)val).size());
        }
        else if (val instanceof String)
        {
            return new Integer(((String)val).length());
        }

        throw new Exception("size() : unknown type : " + val.getClass());
    }

}

@@ -64,16 +64,21 @@
 (c) 2002
+-2003
  The Apa
@@ -2883,16 +2883,75 @@
 Jr.%3C/a%3E%0A
+ *  @author %3Ca href=%22hw@kremvax.net%22%3EMark H. Wilkinson%3C/a%3E%0A
  *  @ver
@@ -2989,28 +2989,28 @@
 v 1.
-1
+2
  200
-2/04/26 04:23:1
+3/06/25 10:51:4
 4 ge
@@ -3635,36 +3635,180 @@
       %7D%0A        
-else
+%0A        return new Integer(ASTSizeFunction.sizeOf(val));%0A    %7D%0A    %0A    public static int sizeOf(Object val)%0A        throws Exception%0A    %7B%0A       
  if (val instanc
@@ -3846,28 +3846,16 @@
  return 
-new Integer(
 ((List)v
@@ -3856,33 +3856,32 @@
 List)val).size()
-)
 ;%0A        %7D%0A    
@@ -3948,28 +3948,16 @@
  return 
-new Integer(
 Array.ge
@@ -3964,25 +3964,24 @@
 tLength(val)
-)
 ;%0A        %7D%0A
@@ -4046,28 +4046,16 @@
  return 
-new Integer(
 ((Map)va
@@ -4063,17 +4063,16 @@
 ).size()
-)
 ;%0A      
@@ -4144,28 +4144,16 @@
  return 
-new Integer(
 ((String
@@ -4166,17 +4166,16 @@
 length()
-)
 ;%0A      

patch from mark wilkinson - size () fix