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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.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.internal.OverrideFieldsCombination;
import com.kenshoo.pl.entity.internal.ResultingFieldsCombination;
import com.kenshoo.pl.entity.spi.FieldsCombinationValidator;

import java.util.Map;
import java.util.function.Function;
import java.util.stream.Collectors;
import java.util.stream.Stream;

public class FieldsCombinationValidationAdapter> implements EntityChangeValidator {

    private final FieldsCombinationValidator validator;

    public FieldsCombinationValidationAdapter(FieldsCombinationValidator validator) {
        this.validator = validator;
    }

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

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

    @Override
    public Stream> fetchFields() {
        return Stream.concat(validator.validatedFields(), validator.fetchFields());
    }

    @Override
    public ValidationError validate(EntityChange entityChange, CurrentEntityState currentState) {
        if(validator.validateWhen().test(currentState)) {
            ResultingFieldsCombination resultingFieldsCombination = new ResultingFieldsCombination<>(entityChange, currentState, validator.validatedFields(), entityChange.getChangeOperation());
            if (hasSubstitutions()) {
                return validator.validate(new OverrideFieldsCombination<>(currentState, resultingFieldsCombination, mapFieldToOverrideFunction()));
            } else {
                return validator.validate(resultingFieldsCombination);
            }
        } else {
            return null;
        }
    }

    private boolean hasSubstitutions() {
        return validator.substitutions().findAny().isPresent();
    }

    private Map, FieldsCombinationValidator.Substitution> mapFieldToOverrideFunction() {
        return validator.substitutions().
                collect(Collectors.toMap(FieldsCombinationValidator.Substitution::overrideField, Function.identity()));
    }
}