/* | |
* 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.crossval.strategy; | |
import org.apache.myfaces.extensions.validator.crossval.storage.CrossValidationStorageEntry; | |
import org.apache.myfaces.extensions.validator.crossval.storage.CrossValidationStorage; | |
import org.apache.myfaces.extensions.validator.crossval.storage.ProcessedInformationStorage; | |
import org.apache.myfaces.extensions.validator.crossval.storage.ProcessedInformationStorageEntry; | |
import org.apache.myfaces.extensions.validator.internal.UsageInformation; | |
import org.apache.myfaces.extensions.validator.internal.UsageCategory; | |
import org.apache.myfaces.extensions.validator.core.property.PropertyDetails; | |
import org.apache.myfaces.extensions.validator.core.el.ValueBindingExpression; | |
import org.apache.myfaces.extensions.validator.core.property.PropertyInformationKeys; | |
import org.apache.myfaces.extensions.validator.util.CrossValidationUtils; | |
import org.apache.myfaces.extensions.validator.util.ReflectionUtils; | |
import org.apache.myfaces.extensions.validator.util.ProxyUtils; | |
import java.lang.reflect.Method; | |
import java.util.logging.Logger; | |
/** | |
* "[property_name]" ... local validation -> cross-component, but no cross-entity validation | |
* | |
* @since 1.x.1 | |
*/ | |
@UsageInformation(UsageCategory.INTERNAL) | |
class LocalCompareStrategy implements ReferencingStrategy | |
{ | |
protected final Logger logger = Logger.getLogger(getClass().getName()); | |
public boolean evaluateReferenceAndValidate( | |
CrossValidationStorageEntry crossValidationStorageEntry, | |
CrossValidationStorage crossValidationStorage, | |
String validationTarget, AbstractCompareStrategy compareStrategy) | |
{ | |
if(validationTarget.contains(".")) | |
{ | |
//LocalPropertyChainCompareStrategy will continue | |
return false; | |
} | |
return tryToValidateLocally( | |
crossValidationStorageEntry, | |
crossValidationStorage, | |
validationTarget, | |
compareStrategy); | |
} | |
protected boolean tryToValidateLocally( | |
CrossValidationStorageEntry crossValidationStorageEntry, | |
CrossValidationStorage crossValidationStorage, | |
String targetKey, | |
AbstractCompareStrategy compareStrategy) | |
{ | |
ProcessedInformationStorage processedInformationStorage = | |
CrossValidationUtils.getOrInitProcessedInformationStorage(); | |
boolean isModelAwareValidation = | |
isModelAwareCrossValidation(crossValidationStorageEntry, processedInformationStorage, targetKey); | |
String targetProperty = targetKey; | |
String sourceKey = resolveSourceKey(crossValidationStorageEntry); | |
targetKey = sourceKey.substring(0, sourceKey.lastIndexOf(".") + 1) + targetKey; | |
ProcessedInformationStorageEntry validationTargetEntry = CrossValidationUtils.resolveValidationTargetEntry( | |
processedInformationStorage, targetKey, crossValidationStorageEntry); | |
if (validationTargetEntry != null && validationTargetEntry.getComponent() != null && !isModelAwareValidation) | |
{ | |
processCrossComponentValidation(compareStrategy, crossValidationStorageEntry, validationTargetEntry); | |
} | |
//no target - because there is no target component - value was validated against the model | |
else if(isModelAwareValidation) | |
{ | |
processModelAwareCrossValidation(compareStrategy, crossValidationStorageEntry, targetProperty); | |
} | |
else | |
{ | |
unsupportedCase(crossValidationStorageEntry); | |
} | |
return true; | |
} | |
protected String createTargetKey(CrossValidationStorageEntry crossValidationStorageEntry, String targetKey) | |
{ | |
//no real value binding expression | |
//ValueBindingExpression just hepls to replace the property of the key | |
//here only dot-notation is allowed -> no problem | |
ValueBindingExpression baseExpression = | |
new ValueBindingExpression("#{" + crossValidationStorageEntry.getMetaDataEntry() | |
.getProperty(PropertyInformationKeys.PROPERTY_DETAILS, | |
PropertyDetails.class).getKey() + "}"); | |
String result = ValueBindingExpression.replaceOrAddProperty(baseExpression, targetKey) | |
.getExpressionString(); | |
return result.substring(2, result.length() -1); | |
} | |
protected Object getValueOfProperty(Object base, String property) | |
{ | |
property = property.substring(0,1).toUpperCase() + property.substring(1, property.length()); | |
Class targetClass = ProxyUtils.getUnproxiedClass(base.getClass()); | |
Method targetMethod = ReflectionUtils.tryToGetMethod(targetClass, "get" + property); | |
if(targetMethod == null) | |
{ | |
targetMethod = ReflectionUtils.tryToGetMethod(targetClass, "is" + property); | |
} | |
if(targetMethod == null) | |
{ | |
throw new IllegalStateException( | |
"class " + base.getClass() + " has no public get/is " + property.toLowerCase()); | |
} | |
return ReflectionUtils.tryToInvokeMethod(base, targetMethod); | |
} | |
private boolean isModelAwareCrossValidation( | |
CrossValidationStorageEntry crossValidationStorageEntry, | |
ProcessedInformationStorage keyConvertedValueMapping, | |
String targetKey) | |
{ | |
String newKey = createTargetKey(crossValidationStorageEntry, targetKey); | |
return !keyConvertedValueMapping.containsEntry(newKey); | |
} | |
private String resolveSourceKey(CrossValidationStorageEntry crossValidationStorageEntry) | |
{ | |
PropertyDetails propertyDetails = crossValidationStorageEntry.getMetaDataEntry() | |
.getProperty(PropertyInformationKeys.PROPERTY_DETAILS, PropertyDetails.class); | |
String sourceKey = propertyDetails.getKey(); | |
if(!sourceKey.contains(".")) | |
{ | |
throw new IllegalStateException("source path: " + sourceKey + " invalid"); | |
} | |
return sourceKey; | |
} | |
private void unsupportedCase(CrossValidationStorageEntry crossValidationStorageEntry) | |
{ | |
logger.warning("couldn't find converted object for " + crossValidationStorageEntry.getMetaDataEntry() | |
.getProperty(PropertyInformationKeys.PROPERTY_DETAILS, PropertyDetails.class).getKey()); | |
} | |
private void processCrossComponentValidation( | |
AbstractCompareStrategy compareStrategy, | |
CrossValidationStorageEntry crossValidationStorageEntry, | |
ProcessedInformationStorageEntry validationTargetEntry) | |
{ | |
CrossValidationHelper | |
.crossValidateCompareStrategy( | |
compareStrategy, crossValidationStorageEntry, validationTargetEntry, false); | |
} | |
private void processModelAwareCrossValidation( | |
AbstractCompareStrategy compareStrategy, | |
CrossValidationStorageEntry crossValidationStorageEntry, | |
String targetProperty) | |
{ | |
ProcessedInformationStorageEntry targetEntry = new ProcessedInformationStorageEntry(); | |
targetEntry.setBean( | |
crossValidationStorageEntry.getMetaDataEntry() | |
.getProperty(PropertyInformationKeys.PROPERTY_DETAILS, PropertyDetails.class).getBaseObject()); | |
targetEntry | |
.setConvertedValue(getValueOfProperty(targetEntry.getBean(), targetProperty)); | |
CrossValidationHelper | |
.crossValidateCompareStrategy(compareStrategy, crossValidationStorageEntry, targetEntry, true); | |
} | |
} |