org.flowstep.jdbc.ColumnDocumentRowMapper Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of flowstep-jdbc Show documentation

flowStep JDBC

The newest version!

/*
 *
 *  Copyright 2022 the original author or authors.
 *
 *  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
 *
 *       https://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 org.flowstep.jdbc;

import org.bson.Document;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.jdbc.support.JdbcUtils;
import org.springframework.util.LinkedCaseInsensitiveMap;

import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.util.Map;

public class ColumnDocumentRowMapper implements RowMapper {

    public Document mapRow(ResultSet rs, int rowNum) throws SQLException {
        ResultSetMetaData rsmd = rs.getMetaData();
        int columnCount = rsmd.getColumnCount();
        Map mapOfColumnValues = this.createColumnMap(columnCount);

        for (int i = 1; i <= columnCount; ++i) {
            String column = JdbcUtils.lookupColumnName(rsmd, i);
            mapOfColumnValues.putIfAbsent(this.getColumnKey(column), this.getColumnValue(rs, i));
        }

        return new Document(mapOfColumnValues);
    }

    protected Map createColumnMap(int columnCount) {
        return new LinkedCaseInsensitiveMap<>(columnCount);
    }

    protected String getColumnKey(String columnName) {
        return columnName;
    }

    protected Object getColumnValue(ResultSet rs, int index) throws SQLException {
        return JdbcUtils.getResultSetValue(rs, index);
    }
}