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

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

import com.kenshoo.pl.entity.CurrentEntityState;
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.FieldValidator;

import java.util.stream.Stream;

public class FieldValidationAdapter, T> implements ChangeValidatorAdapter {

    private final FieldValidator validator;
    private final ValidationTrigger trigger;

    public FieldValidationAdapter(FieldValidator validator) {
        this.validator = validator;
        this.trigger = new FieldTrigger<>(validator.validatedField());
    }


    @Override
    public ValidationTrigger trigger() {
        return trigger;
    }

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

    @Override
    public Stream> fieldsToFetch() {
        return validator.fetchFields();
    }

    @Override
    public ValidationError validate(EntityChange entityChange, CurrentEntityState currentState) {
        if (entityChange.isFieldChanged(validator.validatedField()) && validator.validateWhen().test(currentState)) {
            return validator.validate(entityChange.get(validator.validatedField()));
        } else {
            return null;
        }
    }
}