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/**
 * Licensed under the Common Development and Distribution License,
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.sun.com/cddl/
 *   
 * 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.
 */

package com.sun.facelets.el;

import java.io.Serializable;

import javax.el.ELException;
import javax.el.MethodExpression;
import javax.faces.context.FacesContext;
import javax.faces.el.EvaluationException;
import javax.faces.el.MethodBinding;
import javax.faces.el.MethodNotFoundException;

/**
 * For legacy ActionSources
 * 
 * @author Jacob Hookom
 * @version $Id: LegacyMethodBinding.java,v 1.6 2005/09/02 03:30:03 adamwiner Exp $
 * @deprecated
 */
public final class LegacyMethodBinding extends
        MethodBinding implements Serializable {

    private static final long serialVersionUID = 1L;

    private final MethodExpression m;

    public LegacyMethodBinding(MethodExpression m) {
        this.m = m;
    }

    /*
     * (non-Javadoc)
     * 
     * @see javax.faces.el.MethodBinding#getType(javax.faces.context.FacesContext)
     */
    public Class getType(FacesContext context)
            throws MethodNotFoundException {
        try {
            return m.getMethodInfo(ELAdaptor.getELContext(context)).getReturnType();
        } catch (javax.el.MethodNotFoundException e) {
            throw new MethodNotFoundException(e.getMessage(), e.getCause());
        } catch (ELException e) {
            throw new EvaluationException(e.getMessage(), e.getCause());
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see javax.faces.el.MethodBinding#invoke(javax.faces.context.FacesContext,
     *      java.lang.Object[])
     */
    public Object invoke(FacesContext context, Object[] params)
            throws EvaluationException, MethodNotFoundException {
        try {
            return m.invoke(ELAdaptor.getELContext(context), params);
        } catch (javax.el.MethodNotFoundException e) {
            throw new MethodNotFoundException(e.getMessage(), e.getCause());
        } catch (ELException e) {
            throw new EvaluationException(e.getMessage(), e.getCause());
        }
    }

    public String getExpressionString() {
        return m.getExpressionString();
    }
}