com.github.dreamroute.starter.constraints.validator.ApiExtCollectionValidator Maven / Gradle / Ivy

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package com.github.dreamroute.starter.constraints.validator;

import com.github.dreamroute.starter.constraints.ApiExtCollection;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.Collection;

/**
 * 描述：集合校验器
 *
 * @author w.dehi.2022-05-17
 */
public class ApiExtCollectionValidator implements ConstraintValidator> {

    private boolean required;
    private int min;
    private int max;

    @Override
    public void initialize(ApiExtCollection anno) {
        required = anno.required();
        min = anno.min();
        max = anno.max();
    }

    @Override
    public boolean isValid(Collection value, ConstraintValidatorContext context) {
        if (required) {
            return value != null && value.size() >= min && value.size() <= max;
        } else {
            return value == null || value.isEmpty() || (value.size() >= min && value.size() <= max);
        }
    }
}