/*
* JBoss, Home of Professional Open Source
* Copyright 2011, Red Hat, Inc. and/or its affiliates, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* 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.hibernate.validator.internal.metadata.aggregated;
import java.lang.annotation.ElementType;
import java.lang.reflect.Type;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.validation.ElementKind;
import javax.validation.metadata.GroupConversionDescriptor;
import javax.validation.metadata.ParameterDescriptor;
import org.hibernate.validator.internal.metadata.core.ConstraintHelper;
import org.hibernate.validator.internal.metadata.core.MetaConstraint;
import org.hibernate.validator.internal.metadata.descriptor.ParameterDescriptorImpl;
import org.hibernate.validator.internal.metadata.facets.Cascadable;
import org.hibernate.validator.internal.metadata.raw.ConstrainedElement;
import org.hibernate.validator.internal.metadata.raw.ConstrainedElement.ConstrainedElementKind;
import org.hibernate.validator.internal.metadata.raw.ConstrainedParameter;
/**
* An aggregated view of the constraint related meta data for a single method
* parameter.
*
* @author Gunnar Morling
* @author Hardy Ferentschik
*/
public class ParameterMetaData extends AbstractConstraintMetaData implements Cascadable {
private final GroupConversionHelper groupConversionHelper;
private final int index;
private ParameterMetaData(int index,
String name,
Type type,
Set<MetaConstraint<?>> constraints,
boolean isCascading,
Map<Class<?>, Class<?>> groupConversions,
boolean requiresUnwrapping) {
super(
name,
type,
constraints,
ElementKind.PARAMETER,
isCascading,
!constraints.isEmpty() || isCascading,
requiresUnwrapping
);
this.index = index;
this.groupConversionHelper = new GroupConversionHelper( groupConversions );
this.groupConversionHelper.validateGroupConversions( isCascading(), this.toString() );
}
public int getIndex() {
return index;
}
@Override
public Class<?> convertGroup(Class<?> originalGroup) {
return groupConversionHelper.convertGroup( originalGroup );
}
@Override
public Set<GroupConversionDescriptor> getGroupConversionDescriptors() {
return groupConversionHelper.asDescriptors();
}
@Override
public ElementType getElementType() {
return ElementType.PARAMETER;
}
@Override
public ParameterDescriptor asDescriptor(boolean defaultGroupSequenceRedefined, List<Class<?>> defaultGroupSequence) {
return new ParameterDescriptorImpl(
getType(),
index,
getName(),
asDescriptors( getConstraints() ),
isCascading(),
defaultGroupSequenceRedefined,
defaultGroupSequence,
getGroupConversionDescriptors()
);
}
public static class Builder extends MetaDataBuilder {
private final Type parameterType;
private final int parameterIndex;
private String name;
public Builder(Class<?> beanClass, ConstrainedParameter constrainedParameter, ConstraintHelper constraintHelper) {
super( beanClass, constraintHelper );
this.parameterType = constrainedParameter.getType();
this.parameterIndex = constrainedParameter.getIndex();
add( constrainedParameter );
}
@Override
public boolean accepts(ConstrainedElement constrainedElement) {
if ( constrainedElement.getKind() != ConstrainedElementKind.PARAMETER ) {
return false;
}
return ( (ConstrainedParameter) constrainedElement ).getIndex() == parameterIndex;
}
@Override
public void add(ConstrainedElement constrainedElement) {
super.add( constrainedElement );
ConstrainedParameter constrainedParameter = (ConstrainedParameter) constrainedElement;
if ( name == null ) {
name = constrainedParameter.getName();
}
}
@Override
public ParameterMetaData build() {
return new ParameterMetaData(
parameterIndex,
name,
parameterType,
adaptOriginsAndImplicitGroups( getConstraints() ),
isCascading(),
getGroupConversions(),
requiresUnwrapping()
);
}
}
}