io.github.jeddict.jpa.spec.validator.column.ForeignKeyValidator.java Source code

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Here is the source code for io.github.jeddict.jpa.spec.validator.column.ForeignKeyValidator.java

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/**
 * Copyright 2013-2018 the original author or authors from the Jeddict project (https://jeddict.github.io/).
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package io.github.jeddict.jpa.spec.validator.column;

import java.util.List;
import org.apache.commons.lang.StringUtils;
import io.github.jeddict.jpa.spec.ConstraintMode;
import io.github.jeddict.jpa.spec.ForeignKey;
import io.github.jeddict.jpa.spec.validator.MarshalValidator;

public class ForeignKeyValidator extends MarshalValidator<ForeignKey> {

    @Override
    public ForeignKey marshal(ForeignKey foreignKey) throws Exception {
        if (foreignKey != null && isEmpty(foreignKey)) {
            return null;
        }
        return foreignKey;
    }

    public static boolean isEmpty(ForeignKey foreignKey) {
        if (foreignKey == null) {
            return true;
        }
        if (StringUtils.isBlank(foreignKey.getName()) && StringUtils.isBlank(foreignKey.getForeignKeyDefinition())
                && (foreignKey.getConstraintMode() == null
                        || foreignKey.getConstraintMode() == ConstraintMode.PROVIDER_DEFAULT)) {
            return true;
        }
        return false;
    }

    public static boolean isNotEmpty(ForeignKey foreignKey) {
        return !isEmpty(foreignKey);
    }

    /**
     * Remove empty/invalid ForeignKey
     *
     * @param foreignKeys
     */
    public static void filter(List<ForeignKey> foreignKeys) {
        foreignKeys.removeIf(ForeignKeyValidator::isEmpty);
    }

}