/*
* Created on Sep 9, 2005
*
* Licensed 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.
*
* Copyright @2005 the original author or authors.
*/
package org.springmodules.cache.provider;
import java.beans.PropertyEditor;
import java.beans.PropertyEditorSupport;
import java.util.Iterator;
import java.util.Map;
import java.util.Properties;
import org.springframework.beans.BeanWrapper;
import org.springframework.beans.BeanWrapperImpl;
import org.springmodules.cache.CachingModel;
import org.springmodules.cache.util.SemicolonSeparatedPropertiesParser;
/**
* <p>
* Creates a new instance of <code>{@link CachingModel}</code> by parsing a
* String of the form
* <code>propertyName1=propertyValue1;propertyName2=propertyValue2;propertyNameN=propertyValueN</code>.
* </p>
*
* @author Alex Ruiz
*/
public class ReflectionCacheModelEditor extends PropertyEditorSupport {
/**
* The class of the <code>{@link CachingModel}</code> to create.
*/
private Class cacheModelClass;
/**
* <code>PropertyEditor</code>s for the properties of the cache model to
* create. Each <code>PropertyEditor</code> is stored using the name of the
* property (a String) as key.
*/
private Map cacheModelPropertyEditors;
/**
* @return the class of the caching model to create
*/
public final Class getCacheModelClass() {
return cacheModelClass;
}
/**
* @return the <code>PropertyEditor</code>s for the properties of the cache
* model to create. Each <code>PropertyEditor</code> is stored using
* the name of the property (a String) as key
*/
public final Map getCacheModelPropertyEditors() {
return cacheModelPropertyEditors;
}
/**
* @throws IllegalStateException
* if the class of the cache model to create has not been set.
* @see SemicolonSeparatedPropertiesParser#parseProperties(String)
* @see PropertyEditor#setAsText(String)
* @see org.springframework.beans.PropertyAccessor#setPropertyValue(String,
* Object)
*/
public final void setAsText(String text) {
if (cacheModelClass == null) {
throw new IllegalStateException("cacheModelClass should not be null");
}
Properties properties = SemicolonSeparatedPropertiesParser
.parseProperties(text);
BeanWrapper beanWrapper = new BeanWrapperImpl(cacheModelClass);
if (properties != null) {
for (Iterator i = properties.keySet().iterator(); i.hasNext();) {
String propertyName = (String) i.next();
String textProperty = properties.getProperty(propertyName);
Object propertyValue = null;
PropertyEditor propertyEditor = getPropertyEditor(propertyName);
if (propertyEditor != null) {
propertyEditor.setAsText(textProperty);
propertyValue = propertyEditor.getValue();
} else {
propertyValue = textProperty;
}
beanWrapper.setPropertyValue(propertyName, propertyValue);
}
}
setValue(beanWrapper.getWrappedInstance());
}
/**
* Sets the class of the caching model to create
*
* @param newCacheModelClass
* the new class
*/
public final void setCacheModelClass(Class newCacheModelClass) {
cacheModelClass = newCacheModelClass;
}
/**
* Sets the <code>PropertyEditor</code>s for the properties of the cache
* model to create. Each <code>PropertyEditor</code> is stored using the
* name of the property (a String) as key.
*
* @param newCacheModelPropertyEditors
* the new <code>PropertyEditor</code>s
*/
public final void setCacheModelPropertyEditors(
Map newCacheModelPropertyEditors) {
cacheModelPropertyEditors = newCacheModelPropertyEditors;
}
private PropertyEditor getPropertyEditor(String propertyName) {
return cacheModelPropertyEditors == null ? null
: (PropertyEditor) cacheModelPropertyEditors.get(propertyName);
}
}