org.batoo.common.reflect.PropertyDescriptor.java Source code

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Here is the source code for org.batoo.common.reflect.PropertyDescriptor.java

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/*
 * Copyright (c) 2012-2013, Batu Alp Ceylan
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.batoo.common.reflect;

import java.lang.reflect.Method;

import org.apache.commons.lang.StringUtils;

/**
 * A Simple property desciptor.
 * 
 * @author hceylan
 * @since 2.0.1
 */
public class PropertyDescriptor {

    private static String SET_PREFIX = "set";

    private final String name;

    private final Method reader;
    private final Method writer;

    /**
     * @param clazz
     *            the class
     * @param name
     *            the name of the property
     * @param reader
     *            the reader method
     * 
     * @since 2.0.1
     */
    public PropertyDescriptor(Class<?> clazz, String name, Method reader) {
        super();

        this.reader = reader;
        this.name = StringUtils.uncapitalize(name);

        this.writer = this.getWriter(clazz);
    }

    /**
     * Returns the name of the PropertyDescriptor.
     * 
     * @return the name of the PropertyDescriptor
     * 
     * @since 2.0.1
     */
    public String getName() {
        return this.name;
    }

    /**
     * Returns the reader of the PropertyDescriptor.
     * 
     * @return the reader of the PropertyDescriptor
     * 
     * @since 2.0.1
     */
    public Method getReader() {
        return this.reader;
    }

    /**
     * Returns the writer of the PropertyDescriptor.
     * 
     * @return the writer of the PropertyDescriptor
     * 
     * @since 2.0.1
     */
    public Method getWriter() {
        return this.writer;
    }

    private Method getWriter(Class<?> clazz) {
        try {
            return clazz.getMethod(PropertyDescriptor.SET_PREFIX + StringUtils.capitalize(this.name),
                    this.reader.getReturnType());
        } catch (final Exception e) {
            return null;
        }
    }
}