/* | |
* 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.metadata.transformer; | |
import org.apache.myfaces.extensions.validator.core.factory.ClassMappingFactory; | |
import org.apache.myfaces.extensions.validator.core.factory.AbstractNameMapperAwareFactory; | |
import org.apache.myfaces.extensions.validator.core.validation.strategy.ValidationStrategy; | |
import org.apache.myfaces.extensions.validator.core.validation.strategy.BeanValidationStrategyAdapter; | |
import org.apache.myfaces.extensions.validator.core.mapper.NameMapper; | |
import org.apache.myfaces.extensions.validator.core.initializer.configuration.StaticConfiguration; | |
import org.apache.myfaces.extensions.validator.core.initializer.configuration.StaticConfigurationNames; | |
import org.apache.myfaces.extensions.validator.core.initializer.configuration.StaticConfigurationEntry; | |
import org.apache.myfaces.extensions.validator.core.ExtValContext; | |
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 org.apache.commons.logging.Log; | |
import org.apache.commons.logging.LogFactory; | |
import java.util.ArrayList; | |
import java.util.HashMap; | |
import java.util.List; | |
import java.util.Map; | |
/** | |
* Factory which creates the MetaDataTransformer for a given ValidationStrategy | |
* | |
* @author Gerhard Petracek | |
* @since 1.x.1 | |
*/ | |
/* | |
* ValidationStrategy -> MetaDataTransformer instead of Meta-Data -> MetaDataTransformer | |
* to avoid a second static mapping e.g. for jpa annotations | |
*/ | |
@UsageInformation({UsageCategory.INTERNAL, UsageCategory.CUSTOMIZABLE}) | |
public class DefaultMetaDataTransformerFactory extends AbstractNameMapperAwareFactory<ValidationStrategy> | |
implements ClassMappingFactory<ValidationStrategy, MetaDataTransformer> | |
{ | |
protected final Log logger = LogFactory.getLog(getClass()); | |
private Map<String, String> validationStrategyToMetaDataTransformerMapping; | |
private List<NameMapper<ValidationStrategy>> nameMapperList = new ArrayList<NameMapper<ValidationStrategy>>(); | |
public DefaultMetaDataTransformerFactory() | |
{ | |
if(logger.isDebugEnabled()) | |
{ | |
logger.debug(getClass().getName() + " instantiated"); | |
} | |
} | |
public MetaDataTransformer create(ValidationStrategy validationStrategy) | |
{ | |
String validationStrategyName = null; | |
//proxy check | |
if(validationStrategy.getClass().getPackage() != null) | |
{ | |
validationStrategyName = validationStrategy.getClass().getName(); | |
} | |
//in case of a proxy and the usage of a BeanValidationStrategyAdapter | |
else if (validationStrategy instanceof BeanValidationStrategyAdapter) | |
{ | |
validationStrategyName = ((BeanValidationStrategyAdapter)validationStrategy) | |
.getValidationStrategyClassName(); | |
} | |
if (validationStrategyToMetaDataTransformerMapping == null) | |
{ | |
initStaticMappings(); | |
} | |
if (validationStrategyToMetaDataTransformerMapping.containsKey(validationStrategyName)) | |
{ | |
return (MetaDataTransformer)ClassUtils.tryToInstantiateClassForName( | |
validationStrategyToMetaDataTransformerMapping.get(validationStrategyName)); | |
} | |
MetaDataTransformer metaDataTransformer; | |
String transformerName; | |
//null -> use name mappers | |
for (NameMapper<ValidationStrategy> nameMapper : nameMapperList) | |
{ | |
transformerName = nameMapper.createName(validationStrategy); | |
if (transformerName == null) | |
{ | |
continue; | |
} | |
metaDataTransformer = (MetaDataTransformer)ClassUtils.tryToInstantiateClassForName(transformerName); | |
if (metaDataTransformer != null) | |
{ | |
if(validationStrategyName != null) | |
{ | |
addMapping(validationStrategyName, transformerName); | |
} | |
return metaDataTransformer; | |
} | |
} | |
return null; | |
} | |
private synchronized void initStaticMappings() | |
{ | |
validationStrategyToMetaDataTransformerMapping = new HashMap<String, String>(); | |
//setup internal static mappings | |
for (StaticConfiguration<String, String> staticConfig : | |
ExtValContext.getContext().getStaticConfiguration( | |
StaticConfigurationNames.VALIDATION_STRATEGY_TO_META_DATA_TRANSFORMER_CONFIG)) | |
{ | |
setupStrategyMappings(staticConfig.getMapping()); | |
} | |
} | |
private void setupStrategyMappings(List<StaticConfigurationEntry<String, String>> mappings) | |
{ | |
for(StaticConfigurationEntry<String, String> mapping : mappings) | |
{ | |
addMapping(mapping.getSource(), mapping.getTarget()); | |
} | |
} | |
private synchronized void addMapping(String validationStrategyName, String transformerName) | |
{ | |
if(logger.isTraceEnabled()) | |
{ | |
logger.trace("adding validation strategy to meta-data transformer mapping: " | |
+ validationStrategyName + " -> " + transformerName); | |
} | |
validationStrategyToMetaDataTransformerMapping.put(validationStrategyName, transformerName); | |
} | |
protected List<NameMapper<ValidationStrategy>> getNameMapperList() | |
{ | |
return nameMapperList; | |
} | |
} |