package org.apache.commons.ognl;

 /*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF licenses this file

  * to you under the Apache License, Version 2.0 (the

  * "License"); you may not use this file except in compliance

  * with the License.  You may obtain a copy of the License at

  *

  *   http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing,

  * software distributed under the License is distributed on an

  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

  * KIND, either express or implied.  See the License for the

  * specific language governing permissions and limitations

  * under the License.

  */

 import java.lang.reflect.Method;

 import java.util.List;

 import java.util.Map;

 /**

  * 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 (blanshlu@netscape.net)

  * @author Drew Davidson (drew@ognl.org)

  */

 public class ObjectMethodAccessor

     implements MethodAccessor

 {

     /**

      * {@inheritDoc}

      */

     public Object callStaticMethod( Map<String, Object> context, Class<?> targetClass, String methodName,

                                     Object[] args )

         throws MethodFailedException

     {

         List<Method> methods = OgnlRuntime.getMethods( targetClass, methodName, true );

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

                                                   args );

     }

     /**

      * {@inheritDoc}

      */

     public Object callMethod( Map<String, Object> context, Object target, String methodName, Object[] args )

         throws MethodFailedException

     {

         Class<?> targetClass = ( target == null ) ? null : target.getClass();

         List<Method> methods = OgnlRuntime.getMethods( targetClass, methodName, false );

         if ( ( methods == null ) || ( methods.size() == 0 ) )

         {

             methods = OgnlRuntime.getMethods( targetClass, methodName, true );

         }

         return OgnlRuntime.callAppropriateMethod( (OgnlContext) context, target, target, methodName, null, methods,

                                                   args );

     }

 }