/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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 org.apache.commons.configuration.beanutils;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.apache.commons.beanutils.DynaBean;
import org.apache.commons.beanutils.DynaClass;
import org.apache.commons.beanutils.DynaProperty;
import org.apache.commons.configuration.Configuration;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* The <tt>ConfigurationDynaClass</tt> dynamically determines properties for
* a <code>ConfigurationDynaBean</code> from a wrapped configuration-collection
* {@link org.apache.commons.configuration.Configuration} instance.
*
* @author <a href="mailto:ricardo.gladwell@btinternet.com">Ricardo Gladwell</a>
* @version $Revision: 727664 $, $Date: 2008-12-18 08:16:09 +0100 (Do, 18. Dez 2008) $
* @since 1.0-rc1
*/
public class ConfigurationDynaClass implements DynaClass
{
/** The logger.*/
private static Log log = LogFactory.getLog(ConfigurationDynaClass.class);
/** Stores the associated configuration.*/
private Configuration configuration;
/**
* Construct an instance of a <code>ConfigurationDynaClass</code>
* wrapping the specified <code>Configuration</code> instance.
* @param configuration <code>Configuration</code> instance.
*/
public ConfigurationDynaClass(Configuration configuration)
{
super();
if (log.isTraceEnabled())
{
log.trace("ConfigurationDynaClass(" + configuration + ")");
}
this.configuration = configuration;
}
public DynaProperty getDynaProperty(String name)
{
if (log.isTraceEnabled())
{
log.trace("getDynaProperty(" + name + ")");
}
if (name == null)
{
throw new IllegalArgumentException("Property name must not be null!");
}
Object value = configuration.getProperty(name);
if (value == null)
{
return null;
}
else
{
Class type = value.getClass();
if (type == Byte.class)
{
type = Byte.TYPE;
}
if (type == Character.class)
{
type = Character.TYPE;
}
else if (type == Boolean.class)
{
type = Boolean.TYPE;
}
else if (type == Double.class)
{
type = Double.TYPE;
}
else if (type == Float.class)
{
type = Float.TYPE;
}
else if (type == Integer.class)
{
type = Integer.TYPE;
}
else if (type == Long.class)
{
type = Long.TYPE;
}
else if (type == Short.class)
{
type = Short.TYPE;
}
return new DynaProperty(name, type);
}
}
public DynaProperty[] getDynaProperties()
{
if (log.isTraceEnabled())
{
log.trace("getDynaProperties()");
}
Iterator keys = configuration.getKeys();
List properties = new ArrayList();
while (keys.hasNext())
{
String key = (String) keys.next();
DynaProperty property = getDynaProperty(key);
properties.add(property);
}
DynaProperty[] propertyArray = new DynaProperty[properties.size()];
properties.toArray(propertyArray);
if (log.isDebugEnabled())
{
log.debug("Found " + properties.size() + " properties.");
}
return propertyArray;
}
public String getName()
{
return ConfigurationDynaBean.class.getName();
}
public DynaBean newInstance() throws IllegalAccessException, InstantiationException
{
return new ConfigurationDynaBean(configuration);
}
}