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'databene commons' is an open source Java library by Volker Bergmann.
It provides extensions to the Java core library by utility classes, abstract concepts
and concrete implementations.
/*
* Copyright (C) 2004-2015 Volker Bergmann ([email protected]).
* All rights reserved.
*
* 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.
*/
package org.databene.commons.bean;
import org.databene.commons.BeanUtil;
import org.databene.commons.UpdateFailedException;
import org.databene.commons.mutator.NamedMutator;
import java.util.Map;
/**
* Instantiates JavaBeans from class name and a Properties object
* that contains the text representation of the bean property values.
* Created: 04.09.2007 21:13:06
* @author Volker Bergmann
*/
public class BeanFactory {
private static final ClassProvider DEFAULT_CLASS_PROVIDER = new DefaultClassProvider();
/**
* Creates an object of the specified type.
* @param beanClassName the name of the class to instantiate
* @param properties the bean properties
* @return an object of the specified class
*/
public static Object newBean(String beanClassName, Map properties) {
return newBean(beanClassName, properties, DEFAULT_CLASS_PROVIDER);
}
public static Object newBean(String beanClassName, Map properties, ClassProvider factory) {
Object bean = BeanUtil.newInstance(factory.forName(beanClassName));
for (Map.Entry entry : properties.entrySet()) {
String propertyName = entry.getKey();
NamedMutator mutator = PropertyMutatorFactory.getPropertyMutator(bean.getClass(), propertyName, false, true);
try {
mutator.setValue(bean, entry.getValue());
} catch (UpdateFailedException e) {
throw new RuntimeException("Unable to set property " + propertyName + " on class " + beanClassName, e);
}
}
return bean;
}
}