de.iritgo.simplelife.bean.BeanTools.java Source code

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Here is the source code for de.iritgo.simplelife.bean.BeanTools.java

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/**
 * This file is part of the Iritgo/SimpleLife Library.
 *
 * Copyright (C) 2005-2011 Iritgo Technologies.
 * Copyright (C) 2003-2005 BueroByte GbR.
 *
 * Iritgo 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.
 */

package de.iritgo.simplelife.bean;

import org.apache.commons.beanutils.PropertyUtils;
import java.beans.PropertyDescriptor;
import java.util.Map;

public class BeanTools {
    /**
     * Copy all attributes from the given bean to the given map
     * 
     * @param object The bean
     * @param map The map
     * @param overwrite If true existing attributes in the map will be
     *            overwritten
     */
    static public void copyBean2Map(Object object, Map<String, Object> map, boolean overwrite) {
        for (PropertyDescriptor pd : PropertyUtils.getPropertyDescriptors(object)) {
            String name = pd.getName();

            if (!overwrite && map.containsKey(name)) {
                continue;
            }

            try {
                map.put(name, PropertyUtils.getProperty(object, name));
            } catch (Exception ignore) {
            }
        }
    }

    /**
     * Copy all attributes from the given map to the given bean
     * 
     * @param map The map The map
     * @param object The bean The bean
     */
    static public void copyMap2Bean(Map<String, Object> map, Object object) {
        for (String name : map.keySet()) {
            if (PropertyUtils.isWriteable(object, name)) {
                try {
                    PropertyUtils.setSimpleProperty(object, name, map.get(name));
                } catch (Exception ignore) {
                }
            }
        }
    }

    /**
     * Return true if the given property exists in the given class
     * 
     * @param klass The class
     * @param propertyName The property name
     * @return True if the property exists
     */
    static public boolean hasProperty(Class klass, String propertyName) {
        for (PropertyDescriptor pd : PropertyUtils.getPropertyDescriptors(klass)) {
            if (pd.getName().equals(propertyName)) {
                return true;
            }
        }

        return false;
    }
}