/* | |
* 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.myfaces.extensions.validator.core.mapper; | |
import org.apache.myfaces.extensions.validator.util.ClassUtils; | |
import org.apache.myfaces.extensions.validator.internal.UsageInformation; | |
import org.apache.myfaces.extensions.validator.internal.UsageCategory; | |
import java.util.logging.Logger; | |
/** | |
* A generic implementation of a custom name mapper that can be configured using configuration. Subclasses just have | |
* to specify the fully qualified name of the configured name mapper. | |
* | |
* NameMappers are stateless. | |
* | |
* @author Gerhard Petracek | |
* @since 1.x.1 | |
*/ | |
@UsageInformation(UsageCategory.REUSE) | |
public abstract class AbstractCustomNameMapper<T> implements NameMapper<T> | |
{ | |
protected final Logger logger = Logger.getLogger(getClass().getName()); | |
private NameMapper<T> customNameMapper; | |
protected AbstractCustomNameMapper() | |
{ | |
logger.fine(getClass().getName() + " instantiated"); | |
} | |
/** | |
* {@inheritDoc} | |
* When no name mapper is configured, the method returns null. | |
*/ | |
public String createName(T source) | |
{ | |
if (customNameMapper == null) | |
{ | |
String className = getCustomNameMapperClassName(); | |
if (className != null) | |
{ | |
customNameMapper = (NameMapper<T>) ClassUtils.tryToInstantiateClassForName(className); | |
} | |
} | |
return (customNameMapper != null) ? customNameMapper.createName(source) : null; | |
} | |
/** | |
* Returns the fully qualified class name of the configured name mapper that must be used. | |
* | |
* @return fully qualified class name of a custom name mapper. | |
*/ | |
protected abstract String getCustomNameMapperClassName(); | |
} |