/*

  * Copyright 2007 The Kuali Foundation

  *

  * Licensed under the Educational Community License, Version 1.0 (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.opensource.org/licenses/ecl1.php

  *

  * 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 org.kuali.rice.krad.uif.util;

 import org.springframework.beans.BeanWrapper;

 import org.springframework.beans.BeanWrapperImpl;

 import org.springframework.beans.BeansException;

 import java.beans.PropertyDescriptor;

 import java.util.Map;

 /**

  * Utility methods to get/set property values and working with objects

  * 

  * @author Kuali Rice Team (rice.collab@kuali.org)

  * @see org.springframework.beans.BeanWrapper

  */

 public class ObjectPropertyUtils {

         private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(ObjectPropertyUtils.class);

         public static void copyPropertiesToObject(Map<String, String> properties, Object object) {

                 for (Map.Entry<String, String> property : properties.entrySet()) {

                         setPropertyValue(object, property.getKey(), property.getValue());

                 }

         }

         public static PropertyDescriptor[] getPropertyDescriptors(Object object) {

                 return wrapObject(object).getPropertyDescriptors();

         }

         public static Class<?> getPropertyType(Class<?> object, String propertyPath) {

                 return new BeanWrapperImpl(object).getPropertyType(propertyPath);

         }

         public static Class<?> getPropertyType(Object object, String propertyPath) {

                 return wrapObject(object).getPropertyType(propertyPath);

         }

         @SuppressWarnings("unchecked")

         public static <T extends Object> T getPropertyValue(Object object, String propertyPath) {

             T result = null;

             try {

                 result = (T) wrapObject(object).getPropertyValue(propertyPath);

             } catch (RuntimeException e) {

                 throw new RuntimeException("Error getting property '" + propertyPath + "' from " + object, e);

             }

             return result;

         }

         public static void initializeProperty(Object object, String propertyPath) {

                 Class<?> propertyType = getPropertyType(object, propertyPath);

                 try {

                         setPropertyValue(object, propertyPath, propertyType.newInstance());

                 }

                 catch (Exception e) {

                         throw new RuntimeException("Unable to set new instance for property: " + propertyPath, e);

                 }

         }

         public static void setPropertyValue(Object object, String propertyPath, Object propertyValue) {

                 wrapObject(object).setPropertyValue(propertyPath, propertyValue);

         }

         public static void setPropertyValue(Object object, String propertyPath, Object propertyValue, boolean ignoreUnknown) {

                 try {

                         wrapObject(object).setPropertyValue(propertyPath, propertyValue);

                 }

                 catch (BeansException e) {

                         // only throw exception if they have indicated to not ignore unknown

                         if (!ignoreUnknown) {

                                 throw new RuntimeException(e);

                         }

                         if (LOG.isTraceEnabled()) {

                                 LOG.trace("Ignoring exception thrown during setting of property '" + propertyPath + "': "

                                                 + e.getLocalizedMessage());

                         }

                 }

         }

     public static boolean isReadableProperty(Object object, String propertyPath) {

         return wrapObject(object).isReadableProperty(propertyPath);

     }

     public static boolean isWritableProperty(Object object, String propertyPath) {

         return wrapObject(object).isWritableProperty(propertyPath);

     }

         public static BeanWrapper wrapObject(Object object) {

                 BeanWrapper beanWrapper = new BeanWrapperImpl(object);

                 beanWrapper.setAutoGrowNestedPaths(true);

                 return beanWrapper;

         }

 }