/* | |
* 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.beanval; | |
import org.apache.myfaces.extensions.validator.internal.UsageInformation; | |
import org.apache.myfaces.extensions.validator.internal.UsageCategory; | |
import org.apache.myfaces.extensions.validator.internal.ToDo; | |
import org.apache.myfaces.extensions.validator.internal.Priority; | |
import org.apache.myfaces.extensions.validator.util.ExtValUtils; | |
import javax.validation.ConstraintValidatorFactory; | |
import javax.validation.ConstraintValidator; | |
import java.beans.Introspector; | |
/** | |
* @author Gerhard Petracek | |
* @since x.x.3 | |
*/ | |
@UsageInformation(UsageCategory.INTERNAL) | |
class BeanAwareConstraintValidatorFactory implements ConstraintValidatorFactory | |
{ | |
private ConstraintValidatorFactory constraintValidatorFactory; | |
public BeanAwareConstraintValidatorFactory(ConstraintValidatorFactory constraintValidatorFactory) | |
{ | |
setConstraintValidatorFactory(constraintValidatorFactory); | |
} | |
public void setConstraintValidatorFactory(ConstraintValidatorFactory constraintValidatorFactory) | |
{ | |
if(constraintValidatorFactory == null) | |
{ | |
throw new IllegalStateException("null is not allowed here"); | |
} | |
this.constraintValidatorFactory = constraintValidatorFactory; | |
} | |
@SuppressWarnings({"unchecked"}) | |
@ToDo(value = Priority.MEDIUM, description = "allow the registration of a custom prefix") | |
public <T extends ConstraintValidator<?, ?>> T getInstance(Class<T> targetClass) | |
{ | |
String validatorClassName = targetClass.getSimpleName(); | |
Object result = ExtValUtils.getELHelper().getBean(createBeanName(validatorClassName)); | |
if(result != null && targetClass.isAssignableFrom(result.getClass())) | |
{ | |
return (T)result; | |
} | |
return this.constraintValidatorFactory.getInstance(targetClass); | |
} | |
private String createBeanName(String validatorClassName) | |
{ | |
return Introspector.decapitalize(validatorClassName); | |
} | |
} |