| /* |
| * 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.jsr; |
| |
| import java.lang.annotation.Annotation; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.EnumSet; |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.Set; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.ConcurrentMap; |
| import java.util.stream.Collectors; |
| |
| import javax.validation.ConstraintDefinitionException; |
| import javax.validation.ConstraintValidator; |
| import javax.validation.constraintvalidation.SupportedValidationTarget; |
| import javax.validation.constraintvalidation.ValidationTarget; |
| |
| import org.apache.bval.jsr.descriptor.ConstraintD; |
| import org.apache.bval.jsr.metadata.AnnotationDeclaredValidatorMappingProvider; |
| import org.apache.bval.jsr.metadata.CompositeValidatorMappingProvider; |
| import org.apache.bval.jsr.metadata.DualValidationMappingProvider; |
| import org.apache.bval.jsr.metadata.ValidatorMappingProvider; |
| import org.apache.bval.jsr.util.ToUnmodifiable; |
| import org.apache.bval.util.Exceptions; |
| import org.apache.bval.util.Lazy; |
| import org.apache.bval.util.Validate; |
| |
| /** |
| * Description: hold the relationship annotation->validatedBy[] |
| * ConstraintValidator classes that are already parsed in a cache.<br/> |
| */ |
| public class ConstraintCached { |
| |
| /** |
| * Describes a {@link ConstraintValidator} implementation type. |
| * |
| * @since 2.0 |
| */ |
| public static final class ConstraintValidatorInfo<T extends Annotation> { |
| private static final Set<ValidationTarget> DEFAULT_VALIDATION_TARGETS = |
| Collections.singleton(ValidationTarget.ANNOTATED_ELEMENT); |
| |
| private final Class<? extends ConstraintValidator<T, ?>> type; |
| private Set<ValidationTarget> supportedTargets; |
| |
| ConstraintValidatorInfo(Class<? extends ConstraintValidator<T, ?>> type) { |
| super(); |
| this.type = Validate.notNull(type); |
| final SupportedValidationTarget svt = type.getAnnotation(SupportedValidationTarget.class); |
| |
| supportedTargets = svt == null ? DEFAULT_VALIDATION_TARGETS |
| : Collections.unmodifiableSet(EnumSet.copyOf(Arrays.asList(svt.value()))); |
| |
| if (supportedTargets.isEmpty()) { |
| Exceptions.raise(ConstraintDefinitionException::new, "Illegally specified 0-length %s value on %s", |
| SupportedValidationTarget.class.getSimpleName(), type); |
| } |
| } |
| |
| public Class<? extends ConstraintValidator<T, ?>> getType() { |
| return type; |
| } |
| |
| public Set<ValidationTarget> getSupportedTargets() { |
| return supportedTargets; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| return obj == this |
| || obj instanceof ConstraintValidatorInfo<?> && ((ConstraintValidatorInfo<?>) obj).type.equals(type); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(type); |
| } |
| } |
| |
| private final ConcurrentMap<Class<? extends Annotation>, Set<ConstraintValidatorInfo<?>>> constraintValidatorInfo = |
| new ConcurrentHashMap<>(); |
| private final ConcurrentMap<ConstraintD<?>, ConstraintValidator<?, ?>> validators = |
| new ConcurrentHashMap<>(); |
| |
| private final List<ValidatorMappingProvider> customValidatorMappingProviders = new ArrayList<>(); |
| private final Lazy<ValidatorMappingProvider> validatorMappingProvider = |
| new Lazy<>(this::createValidatorMappingProvider); |
| |
| public ConcurrentMap<ConstraintD<?>, ConstraintValidator<?, ?>> getValidators() { |
| return validators; |
| } |
| |
| public void add(ValidatorMappingProvider validatorMappingProvider) { |
| customValidatorMappingProviders.add(validatorMappingProvider); |
| this.validatorMappingProvider.reset(this::createValidatorMappingProvider); |
| } |
| |
| public <A extends Annotation> List<Class<? extends ConstraintValidator<A, ?>>> getConstraintValidatorClasses( |
| Class<A> constraintType) { |
| final Set<ConstraintValidatorInfo<A>> infos = infos(constraintType); |
| return infos == null ? Collections.emptyList() |
| : infos.stream().map(ConstraintValidatorInfo::getType).collect(ToUnmodifiable.list()); |
| } |
| |
| public <A extends Annotation> Set<ConstraintValidatorInfo<A>> getConstraintValidatorInfo(Class<A> constraintType) { |
| return Collections.unmodifiableSet(infos(constraintType)); |
| } |
| |
| @SuppressWarnings({ "unchecked", "rawtypes" }) |
| private <A extends Annotation> Set<ConstraintValidatorInfo<A>> infos(Class<A> constraintType) { |
| return (Set) constraintValidatorInfo.computeIfAbsent(constraintType, |
| c -> validatorMappingProvider.get().getValidatorMapping(c).getValidatorTypes().stream() |
| .map(ConstraintValidatorInfo::new).collect(Collectors.toSet())); |
| } |
| |
| private ValidatorMappingProvider createValidatorMappingProvider() { |
| final ValidatorMappingProvider configured; |
| if (customValidatorMappingProviders.isEmpty()) { |
| configured = AnnotationDeclaredValidatorMappingProvider.INSTANCE; |
| } else { |
| final ValidatorMappingProvider custom; |
| if (customValidatorMappingProviders.size() == 1) { |
| custom = customValidatorMappingProviders.get(0); |
| } else { |
| custom = new CompositeValidatorMappingProvider(customValidatorMappingProviders); |
| } |
| configured = new DualValidationMappingProvider(AnnotationDeclaredValidatorMappingProvider.INSTANCE, custom); |
| } |
| return new DualValidationMappingProvider(ConstraintDefaults.INSTANCE, configured); |
| } |
| } |