/* | |
* 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.factory; | |
import org.apache.myfaces.extensions.validator.internal.UsageCategory; | |
import org.apache.myfaces.extensions.validator.internal.UsageInformation; | |
import org.apache.myfaces.extensions.validator.core.metadata.extractor.DefaultComponentMetaDataExtractorFactory; | |
import org.apache.myfaces.extensions.validator.core.WebXmlParameter; | |
import org.apache.myfaces.extensions.validator.core.ExtValContext; | |
import org.apache.myfaces.extensions.validator.core.CustomInformation; | |
import org.apache.myfaces.extensions.validator.core.el.DefaultELHelperFactory; | |
import org.apache.myfaces.extensions.validator.core.renderkit.DefaultRenderKitWrapperFactory; | |
import org.apache.myfaces.extensions.validator.core.metadata.transformer.DefaultMetaDataTransformerFactory; | |
import org.apache.myfaces.extensions.validator.core.validation.strategy.DefaultValidationStrategyFactory; | |
import org.apache.myfaces.extensions.validator.core.validation.message.resolver.DefaultMessageResolverFactory; | |
import org.apache.myfaces.extensions.validator.util.ClassUtils; | |
import org.apache.commons.logging.Log; | |
import org.apache.commons.logging.LogFactory; | |
import java.util.Map; | |
import java.util.HashMap; | |
import java.util.List; | |
import java.util.ArrayList; | |
/** | |
* @author Gerhard Petracek | |
* @since 1.x.1 | |
*/ | |
//dynamic approach to create the factories during the first request, when a faces-context is available | |
@UsageInformation(UsageCategory.INTERNAL) | |
public class DefaultFactoryFinder implements FactoryFinder | |
{ | |
protected final Log logger = LogFactory.getLog(getClass()); | |
protected Map<FactoryNames, Object> factoryMap = new HashMap<FactoryNames, Object>(); | |
private static FactoryFinder factoryFinder = new DefaultFactoryFinder(); | |
private DefaultFactoryFinder() | |
{ | |
if(logger.isDebugEnabled()) | |
{ | |
logger.debug(getClass().getName() + " instantiated"); | |
} | |
} | |
public static FactoryFinder getInstance() | |
{ | |
return factoryFinder; | |
} | |
public final <T> T getFactory(FactoryNames factoryName, Class<T> targetClass) | |
{ | |
if(!(factoryMap.containsKey(factoryName))) | |
{ | |
initFactory(factoryName); | |
} | |
return (T)factoryMap.get(factoryName); | |
} | |
private void initFactory(FactoryNames factoryName) | |
{ | |
Object factory = null; | |
switch (factoryName) | |
{ | |
case COMPONENT_META_DATA_EXTRACTOR_FACTORY: | |
factory = createComponentMetaDataExtractorFactory(); | |
break; | |
case VALIDATION_STRATEGY_FACTORY: | |
factory = createValidationStrategyFactory(); | |
break; | |
case MESSAGE_RESOLVER_FACTORY: | |
factory = createMessageResolverFactory(); | |
break; | |
case META_DATA_TRANSFORMER_FACTORY: | |
factory = createMetaDataTransformerFactory(); | |
break; | |
case RENDERKIT_WRAPPER_FACTORY: | |
factory = createRenderKitWrapperFactory(); | |
break; | |
case EL_HELPER_FACTORY: | |
factory = createELHelperFactory(); | |
break; | |
default: //required by checkstyle | |
} | |
if(factory == null) | |
{ | |
throw new IllegalStateException("not possible to create factory " + factoryName); | |
} | |
factoryMap.put(factoryName, factory); | |
} | |
protected Object createComponentMetaDataExtractorFactory() | |
{ | |
Object factory = null; | |
List<String> metaDataExtractorFactoryClassNames = new ArrayList<String>(); | |
metaDataExtractorFactoryClassNames.add(WebXmlParameter.CUSTOM_COMPONENT_META_DATA_EXTRACTOR_FACTORY); | |
metaDataExtractorFactoryClassNames | |
.add(ExtValContext.getContext().getInformationProviderBean() | |
.get(CustomInformation.COMPONENT_META_DATA_EXTRACTOR_FACTORY)); | |
metaDataExtractorFactoryClassNames.add(DefaultComponentMetaDataExtractorFactory.class.getName()); | |
for (String className : metaDataExtractorFactoryClassNames) | |
{ | |
factory = ClassUtils.tryToInstantiateClassForName(className); | |
if (factory != null) | |
{ | |
break; | |
} | |
} | |
return factory; | |
} | |
protected Object createValidationStrategyFactory() | |
{ | |
Object factory = null; | |
List<String> validationStrategyFactoryClassNames = new ArrayList<String>(); | |
validationStrategyFactoryClassNames.add(WebXmlParameter.CUSTOM_VALIDATION_STRATEGY_FACTORY); | |
validationStrategyFactoryClassNames | |
.add(ExtValContext.getContext().getInformationProviderBean() | |
.get(CustomInformation.VALIDATION_STRATEGY_FACTORY)); | |
validationStrategyFactoryClassNames.add(DefaultValidationStrategyFactory.class.getName()); | |
for (String className : validationStrategyFactoryClassNames) | |
{ | |
factory = ClassUtils.tryToInstantiateClassForName(className); | |
if (factory != null) | |
{ | |
break; | |
} | |
} | |
return factory; | |
} | |
protected Object createMessageResolverFactory() | |
{ | |
Object factory = null; | |
List<String> messageResolverFactoryClassNames = new ArrayList<String>(); | |
messageResolverFactoryClassNames.add(WebXmlParameter.CUSTOM_MESSAGE_RESOLVER_FACTORY); | |
messageResolverFactoryClassNames | |
.add(ExtValContext.getContext().getInformationProviderBean() | |
.get(CustomInformation.MESSAGE_RESOLVER_FACTORY)); | |
messageResolverFactoryClassNames | |
.add(DefaultMessageResolverFactory.class.getName()); | |
for (String className : messageResolverFactoryClassNames) | |
{ | |
factory = ClassUtils.tryToInstantiateClassForName(className); | |
if (factory != null) | |
{ | |
break; | |
} | |
} | |
return factory; | |
} | |
protected Object createMetaDataTransformerFactory() | |
{ | |
Object factory = null; | |
List<String> metaDataTransformerFactoryClassNames = new ArrayList<String>(); | |
metaDataTransformerFactoryClassNames.add(WebXmlParameter.CUSTOM_META_DATA_TRANSFORMER_FACTORY ); | |
metaDataTransformerFactoryClassNames | |
.add(ExtValContext.getContext().getInformationProviderBean() | |
.get(CustomInformation.META_DATA_TRANSFORMER_FACTORY)); | |
metaDataTransformerFactoryClassNames.add(DefaultMetaDataTransformerFactory.class.getName()); | |
for (String className : metaDataTransformerFactoryClassNames) | |
{ | |
factory = ClassUtils.tryToInstantiateClassForName(className); | |
if (factory != null) | |
{ | |
break; | |
} | |
} | |
return factory; | |
} | |
protected Object createRenderKitWrapperFactory() | |
{ | |
return new DefaultRenderKitWrapperFactory(); | |
} | |
private Object createELHelperFactory() | |
{ | |
return new DefaultELHelperFactory(); | |
} | |
} |