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parse contraint annotations and initilize validators

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This commit is contained in:
Albert Shift 2015-06-09 13:23:25 -07:00
parent 9919fd9e25
commit 49cb219849
5 changed files with 110 additions and 0 deletions
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8
src/main/java/com/noorq/casser/core/reflect/CasserNamedProperty.java
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@ -15,15 +15,19 @@
*/
package com.noorq.casser.core.reflect;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.Optional;
import java.util.function.Function;
import javax.validation.ConstraintValidator;
import com.noorq.casser.core.SessionRepository;
import com.noorq.casser.mapping.CasserEntity;
import com.noorq.casser.mapping.CasserProperty;
import com.noorq.casser.mapping.ColumnType;
import com.noorq.casser.mapping.IdentityName;
import com.noorq.casser.mapping.MappingUtil;
import com.noorq.casser.mapping.OrderingDirection;
import com.noorq.casser.mapping.type.AbstractDataType;
import com.noorq.casser.support.CasserMappingException;
@ -98,4 +102,8 @@ public final class CasserNamedProperty implements CasserProperty {
return Optional.empty();
}
@Override
public ConstraintValidator<? extends Annotation, ?>[] getValidators() {
return MappingUtil.EMPTY_VALIDATORS;
}
}

35
src/main/java/com/noorq/casser/core/reflect/ReflectionInstantiator.java Normal file
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@ -0,0 +1,35 @@
/*
* Copyright (C) 2015 Noorq, Inc.
*
* 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 com.noorq.casser.core.reflect;
import com.noorq.casser.support.CasserMappingException;
public final class ReflectionInstantiator {
private ReflectionInstantiator() {
}
public static <T> T instantiateClass(Class<T> clazz) {
try {
return clazz.newInstance();
} catch (InstantiationException | IllegalAccessException e) {
throw new CasserMappingException("invalid class " + clazz, e);
}
}
}

13
src/main/java/com/noorq/casser/mapping/CasserMappingProperty.java
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@ -15,11 +15,14 @@
*/
package com.noorq.casser.mapping;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.util.Optional;
import java.util.function.Function;
import javax.validation.ConstraintValidator;
import com.noorq.casser.core.SessionRepository;
import com.noorq.casser.mapping.javatype.AbstractJavaType;
import com.noorq.casser.mapping.javatype.MappingJavaTypes;
@ -43,6 +46,8 @@ public final class CasserMappingProperty implements CasserProperty {
private volatile Optional<Function<Object, Object>> readConverter = null;
private volatile Optional<Function<Object, Object>> writeConverter = null;
private final ConstraintValidator<? extends Annotation, ?>[] validators;
public CasserMappingProperty(CasserMappingEntity entity, Method getter) {
this.entity = entity;
this.getter = getter;
@ -57,6 +62,8 @@ public final class CasserMappingProperty implements CasserProperty {
this.abstractJavaType = MappingJavaTypes.resolveJavaType(this.javaType);
this.dataType = abstractJavaType.resolveDataType(this.getter, this.genericJavaType, this.columnInfo.getColumnType());
this.validators = MappingUtil.getValidators(getter);
}
@Override
@ -129,4 +136,10 @@ public final class CasserMappingProperty implements CasserProperty {
return writeConverter;
}
@Override
public ConstraintValidator<? extends Annotation, ?>[] getValidators() {
return validators;
}
}

5
src/main/java/com/noorq/casser/mapping/CasserProperty.java
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@ -15,10 +15,13 @@
*/
package com.noorq.casser.mapping;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.Optional;
import java.util.function.Function;
import javax.validation.ConstraintValidator;
import com.noorq.casser.core.SessionRepository;
import com.noorq.casser.mapping.type.AbstractDataType;
@ -48,4 +51,6 @@ public interface CasserProperty {
Optional<Function<Object, Object>> getWriteConverter(SessionRepository repository);
ConstraintValidator<? extends Annotation, ?>[] getValidators();
}

49
src/main/java/com/noorq/casser/mapping/MappingUtil.java
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@ -15,9 +15,15 @@
*/
package com.noorq.casser.mapping;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import javax.validation.Constraint;
import javax.validation.ConstraintValidator;
import com.noorq.casser.core.Casser;
import com.noorq.casser.core.Getter;
import com.noorq.casser.core.reflect.CasserPropertyNode;
@ -25,6 +31,7 @@ import com.noorq.casser.core.reflect.DslExportable;
import com.noorq.casser.core.reflect.ListDsl;
import com.noorq.casser.core.reflect.MapDsl;
import com.noorq.casser.core.reflect.MapExportable;
import com.noorq.casser.core.reflect.ReflectionInstantiator;
import com.noorq.casser.core.reflect.SetDsl;
import com.noorq.casser.mapping.annotation.Index;
import com.noorq.casser.mapping.annotation.Table;
@ -33,11 +40,53 @@ import com.noorq.casser.mapping.annotation.UDT;
import com.noorq.casser.support.CasserMappingException;
import com.noorq.casser.support.DslPropertyException;
public final class MappingUtil {
@SuppressWarnings("unchecked")
public static final ConstraintValidator<? extends Annotation, ?>[] EMPTY_VALIDATORS = new ConstraintValidator[0];
private MappingUtil() {
}
public static ConstraintValidator<? extends Annotation, ?>[] getValidators(Method getterMethod) {
List<ConstraintValidator<? extends Annotation, ?>> list = null;
for (Annotation constraintAnnotation : getterMethod.getDeclaredAnnotations()) {
Class<? extends Annotation> annotationType = constraintAnnotation.annotationType();
Constraint constraint = annotationType.getDeclaredAnnotation(Constraint.class);
if (constraint == null) {
continue;
}
for (Class<? extends ConstraintValidator<?, ?>> clazz : constraint.validatedBy()) {
ConstraintValidator<? extends Annotation, ?> validator = ReflectionInstantiator.instantiateClass(clazz);
((ConstraintValidator) validator).initialize(constraintAnnotation);
if (list == null) {
list = new ArrayList<ConstraintValidator<? extends Annotation, ?>>();
}
list.add(validator);
}
}
if (list == null) {
return EMPTY_VALIDATORS;
}
else {
return list.toArray(EMPTY_VALIDATORS);
}
}
public static Optional<IdentityName> getIndexName(Method getterMethod) {
String indexName = null;