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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2017 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package com.sun.faces.facelets.tag;

import javax.faces.view.facelets.MetadataTarget;
import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;

/**
 * 
 * @author Jacob Hookom
 * @version $Id$
 */
public class MetadataTargetImpl extends MetadataTarget {

    private final Map pd;
    private final Class type;
    
    
    public MetadataTargetImpl(Class type) throws IntrospectionException {
        this.type = type;
        this.pd = new HashMap();
        BeanInfo info = Introspector.getBeanInfo(type);
        PropertyDescriptor[] pda = info.getPropertyDescriptors();
        for (int i = 0; i < pda.length; i++) {
            this.pd.put(pda[i].getName(), pda[i]);
        }
    }

    @Override
    public PropertyDescriptor getProperty(String name) {
        return (PropertyDescriptor) this.pd.get(name);
    }

    @Override
    public boolean isTargetInstanceOf(Class type) {
        return type.isAssignableFrom(this.type);
    }

    @Override
    public Class getTargetClass() {
        return this.type;
    }

    @Override
    public Class getPropertyType(String name) {
        PropertyDescriptor pd = this.getProperty(name);
        if (pd != null) {
            return pd.getPropertyType();
        }
        return null;
    }

    @Override
    public Method getWriteMethod(String name) {
        PropertyDescriptor pd = this.getProperty(name);
        if (pd != null) {
            return pd.getWriteMethod();
        }
        return null;
    }

    @Override
    public Method getReadMethod(String name) {
        PropertyDescriptor pd = this.getProperty(name);
        if (pd != null) {
            return pd.getReadMethod();
        }
        return null;
    }

}