io.micronaut.inject.annotation.EvaluatedAnnotationValue Maven / Gradle / Ivy
/*
* Copyright 2017-2020 original authors
*
* 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
*
* https://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 io.micronaut.inject.annotation;
import io.micronaut.context.expressions.ConfigurableExpressionEvaluationContext;
import io.micronaut.core.annotation.AnnotationValue;
import io.micronaut.core.annotation.Experimental;
import io.micronaut.core.annotation.NonNull;
import io.micronaut.core.annotation.Nullable;
import io.micronaut.core.expressions.EvaluatedExpression;
import java.lang.annotation.Annotation;
import java.util.List;
import java.util.Optional;
import java.util.function.Function;
import java.util.stream.Collectors;
/**
* An EvaluatedAnnotationValue is a {@link AnnotationValue} that contains one or more expressions.
*
* @param The annotation
* @since 4.0.0
*/
@Experimental
public final class EvaluatedAnnotationValue extends AnnotationValue {
private final ConfigurableExpressionEvaluationContext evaluationContext;
private final AnnotationValue annotationValue;
EvaluatedAnnotationValue(AnnotationValue annotationValue, ConfigurableExpressionEvaluationContext evaluationContext) {
super(
annotationValue,
annotationValue.getDefaultValues(),
new EvaluatedConvertibleValuesMap<>(evaluationContext, annotationValue.getConvertibleValues()),
value -> {
if (value instanceof EvaluatedExpression expression) {
return expression.evaluate(evaluationContext);
} else if (annotationValue instanceof EnvironmentAnnotationValue eav) {
Function valueMapper = eav.getValueMapper();
if (valueMapper != null) {
return valueMapper.apply(value);
}
}
return value;
}
);
this.evaluationContext = evaluationContext;
this.annotationValue = annotationValue;
}
@Override
public List> getAnnotations(String member, Class type) {
return super.getAnnotations(member, type).stream().map(av -> new EvaluatedAnnotationValue<>(av, evaluationContext)).collect(Collectors.toList());
}
@Override
public List> getAnnotations(String member) {
return super.getAnnotations(member)
.stream()
.map(av -> new EvaluatedAnnotationValue<>(av, evaluationContext))
.collect(Collectors.toList());
}
@Override
public Optional> getAnnotation(String member, Class type) {
return super.getAnnotation(member, type).map(av -> new EvaluatedAnnotationValue<>(av, evaluationContext));
}
@Override
public Optional> getAnnotation(@NonNull String member) {
return super.getAnnotation(member).map(av -> new EvaluatedAnnotationValue<>(av, evaluationContext));
}
/**
* Provide a copy of this annotation metadata with passed method arguments.
*
* @param thisObject The object that represents this in a non-static context.
* @param args arguments passed to method
* @return copy of annotation metadata
*/
public EvaluatedAnnotationValue withArguments(@Nullable Object thisObject, Object[] args) {
return new EvaluatedAnnotationValue<>(
annotationValue,
evaluationContext.withArguments(thisObject, args));
}
}