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/**
 * Copyright (c) 2004 - 2011 Eike Stepper (Berlin, Germany) and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Eike Stepper - initial API and implementation
 */
package org.eclipse.net4j.db.mysql;

import org.eclipse.net4j.db.DBException;
import org.eclipse.net4j.db.DBType;
import org.eclipse.net4j.db.ddl.IDBField;
import org.eclipse.net4j.spi.db.DBAdapter;

import com.mysql.jdbc.Driver;
import com.mysql.jdbc.jdbc2.optional.MysqlDataSource;

import javax.sql.DataSource;

import java.sql.SQLException;

/**
 * @author Eike Stepper
 * @since 2.0
 */
public class MYSQLAdapter extends DBAdapter
{
  public static final String NAME = "mysql"; //$NON-NLS-1$

  public static final String VERSION = "5.1.5"; //$NON-NLS-1$

  private static final String[] RESERVED_WORDS = {
      "ACCESSIBLE", "ACTION", "ADD", "ALL", "ALTER", "ANALYZE", "AND", "AS", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "ASC", "ASENSITIVE", "BEFORE", "BETWEEN", "BIGINT", "BINARY", "BIT", "BLOB", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "BOTH", "BY", "CALL", "CASCADE", "CASE", "CHANGE", "CHAR", "CHARACTER", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "CHECK", "COLLATE", "COLUMN", "COLUMNS", "CONDITION", "CONNECTION", "CONSTRAINT", "CONTINUE", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "CONVERT", "CREATE", "CROSS", "CURRENT_DATE", "CURRENT_TIME", "CURRENT_TIMESTAMP", "CURRENT_USER", "CURSOR", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "DATABASE", "DATABASES", "DATE", "DAY_HOUR", "DAY_MICROSECOND", "DAY_MINUTE", "DAY_SECOND", "DEC", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "DECIMAL", "DECLARE", "DEFAULT", "DELAYED", "DELETE", "DESC", "DESCRIBE", "DETERMINISTIC", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "DISTINCT", "DISTINCTROW", "DIV", "DOUBLE", "DROP", "DUAL", "EACH", "ELSE", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "ELSEIF", "ENCLOSED", "ENUM", "ESCAPED", "EXISTS", "EXIT", "EXPLAIN", "FALSE", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "FETCH", "FIELDS", "FLOAT", "FLOAT4", "FLOAT8", "FOR", "FORCE", "FOREIGN", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "FROM", "FULLTEXT", "GENERAL", "GOTO", "GRANT", "GROUP", "HAVING", "HIGH_PRIORITY", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "HOUR_MICROSECOND", "HOUR_MINUTE", "HOUR_SECOND", "IF", "IGNORE", "IGNORE_SERVER_IDS", "IN", "INDEX", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "INFILE", "INNER", "INOUT", "INSENSITIVE", "INSERT", "INT", "INT1", "INT2", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "INT3", "INT4", "INT8", "INTEGER", "INTERVAL", "INTO", "IS", "ITERATE", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "JOIN", "KEY", "KEYS", "KILL", "LABEL", "LEADING", "LEAVE", "LEFT", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "LIKE", "LIMIT", "LINEAR", "LINES", "LOAD", "LOCALTIME", "LOCALTIMESTAMP", "LOCK", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "LONG", "LONGBLOB", "LONGTEXT", "LOOP", "LOW_PRIORITY", "MASTER_HEARTBEAT_PERIOD", "MASTER_SSL_VERIFY_SERVER_CERT", "MATCH", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "MAXVALUE", "MEDIUMBLOB", "MEDIUMINT", "MEDIUMTEXT", "MIDDLEINT", "MINUTE_MICROSECOND", "MINUTE_SECOND", "MOD", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "MODIFIES", "NATURAL", "NO", "NOT", "NO_WRITE_TO_BINLOG", "NULL", "NUMERIC", "ON", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "OPTIMIZE", "OPTION", "OPTIONALLY", "OR", "ORDER", "OUT", "OUTER", "OUTFILE", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "PRECISION", "PRIMARY", "PRIVILEGES", "PROCEDURE", "PURGE", "RAID0", "RANGE", "READ", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "READS", "READ_WRITE", "REAL", "REFERENCES", "REGEXP", "RELEASE", "RENAME", "REPEAT", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "REPLACE", "REQUIRE", "RESIGNAL", "RESTRICT", "RETURN", "REVOKE", "RIGHT", "RLIKE", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "SCHEMA", "SCHEMAS", "SECOND_MICROSECOND", "SELECT", "SENSITIVE", "SEPARATOR", "SET", "SHOW", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "SIGNAL", "SLOW", "SMALLINT", "SONAME", "SPATIAL", "SPECIFIC", "SQL", "SQL_BIG_RESULT", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "SQL_CALC_FOUND_ROWS", "SQLEXCEPTION", "SQL_SMALL_RESULT", "SQLSTATE", "SQLWARNING", "SSL", "STARTING", "STRAIGHT_JOIN", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "TABLE", "TABLES", "TERMINATED", "TEXT", "THEN", "TIME", "TIMESTAMP", "TINYBLOB", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "TINYINT", "TINYTEXT", "TO", "TRAILING", "TRIGGER", "TRUE", "UNDO", "UNION", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "UNIQUE", "UNLOCK", "UNSIGNED", "UPDATE", "UPGRADE", "USAGE", "USE", "USING", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "UTC_DATE", "UTC_TIME", "UTC_TIMESTAMP", "VALUES", "VARBINARY", "VARCHAR", "VARCHARACTER", "VARYING", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "WHEN", "WHERE", "WHILE", "WITH", "WRITE", "X509", "XOR", "YEAR_MONTH", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
      "ZEROFILL" }; //$NON-NLS-1$

  public MYSQLAdapter()
  {
    super(NAME, VERSION);
  }

  public Driver getJDBCDriver()
  {
    try
    {
      return new Driver();
    }
    catch (SQLException ex)
    {
      throw new DBException(ex);
    }
  }

  public DataSource createJDBCDataSource()
  {
    return new MysqlDataSource();
  }

  /**
   * @since 2.0
   */
  @Override
  public int getMaxTableNameLength()
  {
    return 64;
  }

  /**
   * @since 2.0
   */
  @Override
  public int getMaxFieldNameLength()
  {
    return 64;
  }

  @Override
  protected String getTypeName(IDBField field)
  {
    DBType type = field.getType();
    switch (type)
    {
    case VARCHAR:
    case CLOB:
      return "LONGTEXT"; //$NON-NLS-1$
    }

    return super.getTypeName(field);
  }

  @Override
  protected void addIndexField(StringBuilder builder, IDBField field)
  {
    super.addIndexField(builder, field);
    if (field.getType() == DBType.VARCHAR)
    {
      builder.append("("); //$NON-NLS-1$
      builder.append(field.getPrecision());
      builder.append(")"); //$NON-NLS-1$
    }
  }

  public String[] getReservedWords()
  {
    return RESERVED_WORDS;
  }

  @Override
  public boolean isTypeIndexable(DBType type)
  {
    switch (type)
    {
    case VARCHAR:
      return false;

    default:
      return super.isTypeIndexable(type);
    }
  }

  @Override
  public boolean isDuplicateKeyException(SQLException ex)
  {
    return "23000".equals(ex.getSQLState());
  }
}

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