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

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Here is the source code for io.github.jeddict.jpa.spec.validator.column.JoinColumnValidator.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.JoinColumn;
import io.github.jeddict.jpa.spec.validator.MarshalValidator;

public class JoinColumnValidator extends MarshalValidator<JoinColumn> {

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

    public static boolean isEmpty(JoinColumn column) {
        boolean empty = false;
        if (StringUtils.isBlank(column.getName()) && StringUtils.isBlank(column.getReferencedColumnName())
                && StringUtils.isBlank(column.getColumnDefinition()) && StringUtils.isBlank(column.getTable())
                && Boolean.TRUE.equals(column.getNullable()) && Boolean.TRUE.equals(column.getInsertable())
                && Boolean.TRUE.equals(column.getUpdatable()) && Boolean.FALSE.equals(column.getUnique())
                && ForeignKeyValidator.isEmpty(column.getForeignKey())) {
            empty = true;
        }
        if (!empty && StringUtils.isBlank(column.getName()) && StringUtils.isNotBlank(column.getImplicitName())) {
            column.setName(column.getImplicitName());
            column.setImplicitName(null);
        }
        if (!empty && StringUtils.isBlank(column.getName())) {
            empty = true;
        }
        return empty;
    }

    public static boolean isNotEmpty(JoinColumn column) {
        return !isEmpty(column);
    }

    /**
     * Remove empty/invalid JoinColumn
     *
     * @param columns
     */
    public static void filter(List<JoinColumn> columns) {
        columns.removeIf(JoinColumnValidator::isEmpty);
    }

}