Java tutorial
/** * Genji Scrum Tool and Issue Tracker * Copyright (C) 2015 Steinbeis GmbH & Co. KG Task Management Solutions * <a href="http://www.trackplus.com">Genji Scrum Tool</a> * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ /* $Id:$ */ package com.trackplus.ddl; import org.apache.commons.codec.binary.Base64; import org.apache.logging.log4j.Logger; import org.apache.logging.log4j.LogManager; import java.sql.*; import java.util.Calendar; public class GenericStringValueConverter implements StringValueConverter { private static final Logger LOGGER = LogManager.getLogger(DataReader.class); @Override public String getStringValue(ResultSetMetaData rsmd, int idx, ResultSet rs, String tableName) throws SQLException, DDLException { String value = null; int type = rsmd.getColumnType(idx); String columnName = rsmd.getColumnName(idx); if (tableName.equalsIgnoreCase("TSITE") && columnName.equalsIgnoreCase("EXPDATE")) { Date d = rs.getDate(idx); if (d != null) { value = "'" + d + "'"; } } else { value = extractColumnValue(rs, idx, type); } return value; } protected String extractColumnValue(ResultSet resultSet, int columnIdx, int jdbcType) throws SQLException, DDLException { String value = resultSet.getString(columnIdx); if (value != null) { switch (jdbcType) { case Types.NUMERIC: case Types.DECIMAL: break; case Types.BIT: case Types.BOOLEAN: case Types.TINYINT: case Types.SMALLINT: case Types.INTEGER: case Types.BIGINT: case Types.REAL: case Types.FLOAT: case Types.DOUBLE: { break; } case Types.CHAR: case Types.VARCHAR: case Types.LONGVARCHAR: case Types.BINARY: case Types.VARBINARY: case Types.TIME: case Types.CLOB: case Types.ARRAY: case Types.REF: { value = "'" + value.replaceAll("'", "''") + "'"; break; } case Types.DATE: case Types.TIMESTAMP: { Date d = resultSet.getDate(columnIdx); Calendar cal = Calendar.getInstance(); cal.setTime(d); int year = cal.get(Calendar.YEAR); if (year < 1900) { throw new DDLException("Invalid date:" + d); } else { value = "'" + value + "'"; } break; } case Types.BLOB: case Types.LONGVARBINARY: { Blob blobValue = resultSet.getBlob(columnIdx); String str = new String(Base64.encodeBase64(blobValue.getBytes(1l, (int) blobValue.length()))); value = "'" + str + "'"; break; } default: break; } } return value; } }