/*
 * 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.validation.validator.constraints;

import io.micronaut.core.annotation.AnnotationValue;

import edu.umd.cs.findbugs.annotations.NonNull;
import edu.umd.cs.findbugs.annotations.Nullable;
import javax.validation.constraints.Size;

Abstract implementation of a Size validator. 
Author:
graemerocher
Type parameters:
<T> – The type to constrain
Since:
1.2/**
 * Abstract implementation of a {@link Size} validator.
 * @param <T> The type to constrain
 *
 * @author graemerocher
 * @since 1.2
 */
@FunctionalInterface
public interface SizeValidator<T> extends ConstraintValidator<Size, T> {
    @Override
    default boolean isValid(@Nullable T value, @NonNull AnnotationValue<Size> annotationMetadata, @NonNull ConstraintValidatorContext context) {
        if (value == null) {
            return true; // null considered valid according to spec
        }
        final int len = getSize(value);
        final int max = annotationMetadata.get("max", Integer.class).orElse(Integer.MAX_VALUE);
        final int min = annotationMetadata.get("min", Integer.class).orElse(0);
        return len <= max && len >= min;
    }

    
Evaluate the size for the given value.
Params:
value – The value
Returns:
The size/**
     * Evaluate the size for the given value.
     * @param value The value
     * @return The size
     */
    int getSize(@NonNull T value);
}