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//--------------------------------------------------------------------------
//	Copyright (c) 1998-2004, Drew Davidson and Luke Blanshard
//  All rights reserved.
//
//	Redistribution and use in source and binary forms, with or without
//  modification, are permitted provided that the following conditions are
//  met:
//
//	Redistributions of source code must retain the above copyright notice,
//  this list of conditions and the following disclaimer.
//	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.
//	Neither the name of the Drew Davidson nor the names of its contributors
//  may be used to endorse or promote products derived from this software
//  without specific prior written permission.
//
//	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
//  "AS IS" AND ANY EXPRESS 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
//  COPYRIGHT OWNER OR 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.
//--------------------------------------------------------------------------
package ognl;

import java.util.*;

/**
 * Implementation of PropertyAccessor that uses reflection on the target object's class to
 * find a field or a pair of set/get methods with the given property name.
 * @author Luke Blanshard ([email protected])
 * @author Drew Davidson ([email protected])
 */
public class ObjectMethodAccessor implements MethodAccessor
{
    /* MethodAccessor interface */
    public Object callStaticMethod( Map context, Class targetClass, String methodName, Object[] args ) throws MethodFailedException
    {
        List        methods = OgnlRuntime.getMethods(targetClass, methodName, true);

        return OgnlRuntime.callAppropriateMethod( (OgnlContext)context, targetClass, null, methodName, null, methods, args );
    }

    public Object callMethod( Map context, Object target, String methodName, Object[] args ) throws MethodFailedException
    {
        Class       targetClass = (target == null) ? null : target.getClass();
        Object      source = target;
        List        methods = OgnlRuntime.getMethods(targetClass, methodName, false);

        if ((methods == null) || (methods.size() == 0)) {
            methods = OgnlRuntime.getMethods(targetClass, methodName, true);
            source = targetClass;
        }
        return OgnlRuntime.callAppropriateMethod( (OgnlContext)context, target, target, methodName, null, methods, args );
    }
}