// Copyright 2007, 2008 The Apache Software Foundation
//
// Licensed 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.tapestry5.internal.services;
import org.apache.tapestry5.ComponentResources;
import org.apache.tapestry5.Field;
import org.apache.tapestry5.FieldValidator;
import org.apache.tapestry5.internal.beaneditor.EnvironmentMessages;
import org.apache.tapestry5.ioc.AnnotationProvider;
import org.apache.tapestry5.ioc.Messages;
import static org.apache.tapestry5.ioc.internal.util.CollectionFactory.newList;
import org.apache.tapestry5.services.FieldValidatorDefaultSource;
import org.apache.tapestry5.services.FieldValidatorSource;
import org.apache.tapestry5.services.ValidationConstraintGenerator;
import org.apache.tapestry5.services.Environment;
import java.util.List;
import java.util.Locale;
public class FieldValidatorDefaultSourceImpl implements FieldValidatorDefaultSource
{
private final ValidationConstraintGenerator validationConstraintGenerator;
private final FieldValidatorSource fieldValidatorSource;
public FieldValidatorDefaultSourceImpl(
ValidationConstraintGenerator validationConstraintGenerator,
FieldValidatorSource fieldValidatorSource)
{
this.validationConstraintGenerator = validationConstraintGenerator;
this.fieldValidatorSource = fieldValidatorSource;
}
public FieldValidator createDefaultValidator(Field field, String overrideId,
Messages overrideMessages, Locale locale, Class propertyType,
AnnotationProvider propertyAnnotations)
{
List<FieldValidator> validators = newList();
for (String constraint : validationConstraintGenerator.buildConstraints(
propertyType,
propertyAnnotations))
{
int equalsx = constraint.indexOf('=');
String validatorType = equalsx > 0 ? constraint.substring(0, equalsx) : constraint;
String constraintValue = equalsx > 0 ? constraint.substring(equalsx + 1) : null;
FieldValidator validator = fieldValidatorSource.createValidator(
field,
validatorType,
constraintValue,
overrideId,
overrideMessages,
locale);
validators.add(validator);
}
return validators.size() == 1 ? validators.get(0) : new CompositeFieldValidator(validators);
}
public FieldValidator createDefaultValidator(ComponentResources resources, String parameterName)
{
Class propertyType = resources.getBoundType(parameterName);
if (propertyType == null) return null;
Field field = (Field) resources.getComponent();
return createDefaultValidator(field, resources.getId(), resources.getContainerMessages(), resources.getLocale(),
propertyType, resources.getAnnotationProvider(parameterName));
}
}