/*
* 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.bval.jsr303;
import org.apache.bval.model.Features;
import org.apache.bval.model.MetaBean;
import org.apache.bval.model.MetaProperty;
import org.apache.bval.model.Validation;
import javax.validation.metadata.BeanDescriptor;
import javax.validation.metadata.PropertyDescriptor;
import java.util.HashSet;
import java.util.Set;
/**
* Description: <br/>
*/
public class BeanDescriptorImpl extends ElementDescriptorImpl implements BeanDescriptor {
protected final ApacheFactoryContext factoryContext;
protected BeanDescriptorImpl(ApacheFactoryContext factoryContext, MetaBean metaBean,
Validation[] validations) {
super(metaBean, metaBean.getBeanClass(), validations);
this.factoryContext = factoryContext;
}
/**
* Returns true if the bean involves validation:
* - a constraint is hosted on the bean itself
* - a constraint is hosted on one of the bean properties
* - or a bean property is marked for cascade (@Valid)
*
* @return true if the bean nvolves validation
*/
public boolean isBeanConstrained() {
if (hasAnyConstraints()) return true;
for (MetaProperty mprop : metaBean.getProperties()) {
if (mprop.getMetaBean() != null ||
mprop.getFeature(Features.Property.REF_CASCADE) != null) return true;
}
return false;
}
private boolean hasAnyConstraints() {
if (hasConstraints()) return true;
if (metaBean.getValidations().length > 0) return true;
for (MetaProperty mprop : metaBean.getProperties()) {
if (mprop.getValidations().length > 0) return true;
}
return false;
}
/**
* Return the property level constraints for a given propertyName
* or null if either the property does not exist or has no constraint
* The returned object (and associated objects including ConstraintDescriptors)
* are immutable.
*
* @param propertyName property evaludated
*/
public PropertyDescriptor getConstraintsForProperty(String propertyName) {
if (propertyName == null || propertyName.isEmpty()) {
throw new IllegalArgumentException("propertyName cannot be null or empty");
}
MetaProperty prop = metaBean.getProperty(propertyName);
if (prop == null) return null;
// If no constraints and not cascaded, return null
if ( prop.getValidations().length == 0 && prop.getFeature(Features.Property.REF_CASCADE) == null ) {
return null;
}
return getPropertyDescriptor(prop);
}
private PropertyDescriptor getPropertyDescriptor(MetaProperty prop) {
PropertyDescriptorImpl edesc =
prop.getFeature(Jsr303Features.Property.PropertyDescriptor);
if (edesc == null) {
Class<?> targetClass =
prop.getFeature(Features.Property.REF_BEAN_TYPE, prop.getTypeClass());
edesc = new PropertyDescriptorImpl(
metaBean,
prop.getName(),
prop.getValidations());
edesc.setCascaded((prop.getMetaBean() != null ||
prop.getFeature(Features.Property.REF_CASCADE) != null));
edesc.setPropertyPath(prop.getName());
prop.putFeature(Jsr303Features.Property.PropertyDescriptor, edesc);
}
return edesc;
}
/** return the property descriptors having at least a constraint defined */
public Set<PropertyDescriptor> getConstrainedProperties() {
Set<PropertyDescriptor> validatedProperties = new HashSet<PropertyDescriptor>();
for (MetaProperty prop : metaBean.getProperties()) {
if (prop.getValidations().length > 0 || (prop.getMetaBean() != null ||
prop.getFeature(Features.Property.REF_CASCADE) != null)) {
validatedProperties.add(getPropertyDescriptor(prop));
}
}
return validatedProperties;
}
public String toString() {
return "BeanDescriptorImpl{" + "returnType=" + elementClass + '}';
}
}