com.kenshoo.pl.entity.internal.validators.RequiredFieldValidationAdapter Maven / Gradle / Ivy

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A Java persistence layer based on JOOQ for high performance and business flow support.

There is a newer version: 0.1.121-jooq-3.16.3

package com.kenshoo.pl.entity.internal.validators;

import com.google.common.collect.ImmutableMap;
import com.kenshoo.pl.entity.ChangeOperation;
import com.kenshoo.pl.entity.Entity;
import com.kenshoo.pl.entity.EntityChange;
import com.kenshoo.pl.entity.EntityField;
import com.kenshoo.pl.entity.EntityType;
import com.kenshoo.pl.entity.SupportedChangeOperation;
import com.kenshoo.pl.entity.ValidationError;
import com.kenshoo.pl.entity.spi.RequiredFieldValidator;

import java.util.Optional;
import java.util.stream.Stream;

public class RequiredFieldValidationAdapter, T> implements EntityChangeValidator {

    private final RequiredFieldValidator validator;

    public RequiredFieldValidationAdapter(RequiredFieldValidator validator) {
        this.validator = validator;
    }

    @Override
    public Stream> getValidatedFields() {
        return Stream.of(validator.requiredField());
    }

    @Override
    public SupportedChangeOperation getSupportedChangeOperation() {
        return SupportedChangeOperation.CREATE;
    }

    @Override
    public Stream> getFieldsToFetch(ChangeOperation changeOperation) {
        return validator.fetchFields();
    }

    @Override
    public ValidationError validate(EntityChange entityChange, Entity entity, ChangeOperation changeOperation) {
        if (entityChange.get(validator.requiredField()) == null && validator.requireWhen().test(entity)) {
            return new ValidationError(validator.getErrorCode(), validator.requiredField(), ImmutableMap.of("field", validator.requiredField().toString()));
        }
        return null;
    }
}