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 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
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 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
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 *    https://www.apache.org/licenses/LICENSE-2.0
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package org.apache.cayenne.project.validation;

import org.apache.cayenne.dba.TypesMapping;
import org.apache.cayenne.map.DbAttribute;
import org.apache.cayenne.util.Util;
import org.apache.cayenne.validation.ValidationResult;

class DbAttributeValidator extends ConfigurationNodeValidator {

    void validate(DbAttribute attribute, ValidationResult validationResult) {

        // Must have name
        if (Util.isEmptyString(attribute.getName())) {
            addFailure(validationResult, attribute, "Unnamed DbAttribute");
        } else {
            NameValidationHelper helper = NameValidationHelper.getInstance();
            String invalidChars = helper.invalidCharsInDbPathComponent(attribute
                    .getName());

            if (invalidChars != null) {
                addFailure(
                        validationResult,
                        attribute,
                        "DbAttribute name '%s' contains invalid characters: %s",
                        attribute.getName(),
                        invalidChars);
            }
        }

        // all attributes must have type
        if (attribute.getType() == TypesMapping.NOT_DEFINED) {
            addFailure(validationResult, attribute, "DbAttribute has no type");
        } else if (attribute.getMaxLength() < 0
                && (attribute.getType() == java.sql.Types.VARCHAR
                    || attribute.getType() == java.sql.Types.NVARCHAR
                    || attribute.getType() == java.sql.Types.CHAR
                    || attribute.getType() == java.sql.Types.NCHAR)) {
            // VARCHAR and CHAR attributes must have max length

            addFailure(
                    validationResult,
                    attribute,
                    "Character DbAttribute '%s' doesn't have max length",
                    attribute.getName());
        }
    }
}