/* | |
* 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.core.el.ELHelper; | |
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.util.ExtValUtils; | |
import org.apache.myfaces.extensions.validator.util.CrossValidationUtils; | |
import org.apache.myfaces.extensions.validator.internal.ToDo; | |
import org.apache.myfaces.extensions.validator.internal.Priority; | |
import org.apache.myfaces.extensions.validator.internal.UsageInformation; | |
import org.apache.myfaces.extensions.validator.internal.UsageCategory; | |
import org.apache.myfaces.extensions.validator.core.el.ValueBindingExpression; | |
import javax.faces.context.FacesContext; | |
import java.util.logging.Logger; | |
/** | |
* referencing validation targets - possible formats: | |
* "#{[bean_name].[property_name]}" ... cross-entity validation with value binding | |
* | |
* @author Gerhard Petracek | |
* @since 1.x.1 | |
*/ | |
@UsageInformation(UsageCategory.INTERNAL) | |
class ELCompareStrategy implements ReferencingStrategy | |
{ | |
private final Logger logger = Logger.getLogger(getClass().getName()); | |
public boolean evaluateReferenceAndValidate( | |
CrossValidationStorageEntry crossValidationStorageEntry, | |
CrossValidationStorage crossValidationStorage, | |
String validationTarget, AbstractCompareStrategy compareStrategy) | |
{ | |
ELHelper elHelper = ExtValUtils.getELHelper(); | |
if (elHelper.isELTermWellFormed(validationTarget) && | |
elHelper.isELTermValid(FacesContext.getCurrentInstance(), validationTarget)) | |
{ | |
tryToValidateValueBinding( | |
crossValidationStorageEntry, | |
new ValueBindingExpression(validationTarget), crossValidationStorage, compareStrategy); | |
return true; | |
} | |
return false; | |
} | |
@ToDo(value = Priority.MEDIUM, description = "test") | |
protected boolean tryToValidateValueBinding( | |
CrossValidationStorageEntry crossValidationStorageEntry, | |
ValueBindingExpression validationTarget, | |
CrossValidationStorage crossValidationStorage, | |
AbstractCompareStrategy compareStrategy) | |
{ | |
ProcessedInformationStorageEntry validationTargetEntry = | |
resolveTargetForCrossComponentValidation(crossValidationStorageEntry, validationTarget); | |
if(validationTargetEntry != null) | |
{ | |
processCrossComponentValidation(compareStrategy, crossValidationStorageEntry, validationTargetEntry); | |
} | |
else | |
{ | |
processModelAwareCrossValidation(compareStrategy, crossValidationStorageEntry, validationTarget); | |
} | |
return true; | |
} | |
private ProcessedInformationStorageEntry resolveTargetForCrossComponentValidation( | |
CrossValidationStorageEntry crossValidationStorageEntry, | |
ValueBindingExpression validationTarget) | |
{ | |
ProcessedInformationStorage processedInformationStorage = | |
CrossValidationUtils.getOrInitProcessedInformationStorage(); | |
return CrossValidationUtils.resolveValidationTargetEntry( | |
processedInformationStorage, | |
CrossValidationUtils.convertValueBindingExpressionToProcessedInformationKey(validationTarget), | |
crossValidationStorageEntry); | |
} | |
private void processCrossComponentValidation( | |
AbstractCompareStrategy compareStrategy, | |
CrossValidationStorageEntry crossValidationStorageEntry, | |
ProcessedInformationStorageEntry validationTargetEntry) | |
{ | |
CrossValidationHelper | |
.crossValidateCompareStrategy( | |
compareStrategy, crossValidationStorageEntry, validationTargetEntry, false); | |
} | |
private void processModelAwareCrossValidation( | |
AbstractCompareStrategy compareStrategy, | |
CrossValidationStorageEntry crossValidationStorageEntry, | |
ValueBindingExpression validationTarget) | |
{ | |
FacesContext facesContext = FacesContext.getCurrentInstance(); | |
Object targetValue = ExtValUtils.getELHelper().getValueOfExpression(facesContext, validationTarget); | |
ProcessedInformationStorageEntry targetEntry = new ProcessedInformationStorageEntry(); | |
targetEntry.setBean( | |
ExtValUtils.getELHelper().getValueOfExpression(facesContext, validationTarget.getBaseExpression())); | |
targetEntry.setConvertedValue(targetValue); | |
CrossValidationHelper | |
.crossValidateCompareStrategy(compareStrategy, crossValidationStorageEntry, targetEntry, true); | |
} | |
} |