/// <exception cref="System.SqlSyntaxErrorException" /> public static void InitRouteRule(ISchemaLoader loader) { var functions = loader.Functions; var functionManager = new MySqlFunctionManager(true); BuildFuncManager(functionManager, functions); foreach (var conf in loader.RuleConfigList) { var algorithmString = conf.Algorithm; var lexer = new MySqlLexer(algorithmString); var parser = new MySqlExprParser(lexer, functionManager, false, MySqlParser.DefaultCharset); var expression = parser.Expression(); if (lexer.Token() != MySqlToken.Eof) { throw new ConfigException("route algorithm not end with EOF: " + algorithmString); } IRuleAlgorithm algorithm; if (expression is IRuleAlgorithm) { algorithm = (IRuleAlgorithm)expression; } else { algorithm = new ExpressionAdapter(expression); } conf.RuleAlgorithm = algorithm; } }
//[Test] //public virtual void TestMain() //{ // Main(null); // Assert.IsTrue(true); //} /// <exception cref="System.Exception" /> public static void Main(string[] ars) { var sql = Performance.SqlBenchmarkSelect; for (var i = 0; i < 3; ++i) { var lexer = new MySqlLexer(sql); var exprParser = new MySqlExprParser(lexer); var parser = new MySqlDmlSelectParser(lexer, exprParser); IQueryExpression stmt = parser.Select(); } // System.out.println(stmt); Thread.Sleep(1000); long loop = 300 * 10000; var t1 = Runtime.CurrentTimeMillis(); t1 = Runtime.CurrentTimeMillis(); for (long i_1 = 0; i_1 < loop; ++i_1) { var lexer = new MySqlLexer(sql); var exprParser = new MySqlExprParser(lexer); var parser = new MySqlDmlSelectParser(lexer, exprParser); IQueryExpression stmt = parser.Select(); } var t2 = Runtime.CurrentTimeMillis(); Console.Out.WriteLine((t2 - t1) * 1000.0d / loop + " us"); }
public MySqlDmlInsertParser(MySqlLexer lexer, MySqlExprParser exprParser) : base(lexer, exprParser) { }
public MySqlDmlUpdateParser(MySqlLexer lexer, MySqlExprParser exprParser) : base(lexer, exprParser) { }
public MySqlDmlParser(MySqlLexer lexer, MySqlExprParser exprParser) : base(lexer) { this.exprParser = exprParser; }
public MySqlDmlSelectParser(MySqlLexer lexer, MySqlExprParser exprParser) : base(lexer, exprParser) { this.exprParser.SetSelectParser(this); }
public MySqlDmlReplaceParser(MySqlLexer lexer, MySqlExprParser exprParser) : base(lexer, exprParser) { }
/// <exception cref="System.SqlSyntaxErrorException" /> public static ISqlStatement Parse(string sql, MySqlLexer lexer, string charset) { try { ISqlStatement stmt = null; var isEof = true; var exprParser = new MySqlExprParser(lexer, charset); switch (lexer.Token()) { case MySqlToken.KwDesc: case MySqlToken.KwDescribe: { stmt = new MySqlDalParser(lexer, exprParser).Desc(); goto stmtSwitch_break; } case MySqlToken.KwSelect: case MySqlToken.PuncLeftParen: { stmt = new MySqlDmlSelectParser(lexer, exprParser).SelectUnion(); goto stmtSwitch_break; } case MySqlToken.KwDelete: { stmt = new MySqlDmlDeleteParser(lexer, exprParser).Delete(); goto stmtSwitch_break; } case MySqlToken.KwInsert: { stmt = new MySqlDmlInsertParser(lexer, exprParser).Insert(); goto stmtSwitch_break; } case MySqlToken.KwReplace: { stmt = new MySqlDmlReplaceParser(lexer, exprParser).Replace(); goto stmtSwitch_break; } case MySqlToken.KwUpdate: { stmt = new MySqlDmlUpdateParser(lexer, exprParser).Update(); goto stmtSwitch_break; } case MySqlToken.KwCall: { stmt = new MySqlDmlCallParser(lexer, exprParser).Call(); goto stmtSwitch_break; } case MySqlToken.KwSet: { stmt = new MySqlDalParser(lexer, exprParser).Set(); goto stmtSwitch_break; } case MySqlToken.KwShow: { stmt = new MySqlDalParser(lexer, exprParser).Show(); goto stmtSwitch_break; } case MySqlToken.KwAlter: case MySqlToken.KwCreate: case MySqlToken.KwDrop: case MySqlToken.KwRename: { stmt = new MySqlDdlParser(lexer, exprParser).DdlStmt(); isEof = IsEOFedDdl(stmt); goto stmtSwitch_break; } case MySqlToken.KwRelease: { stmt = new MySqlMtsParser(lexer).Release(); goto stmtSwitch_break; } case MySqlToken.Identifier: { var si = SpecialIdentifier.None; if ((si = SpecialIdentifiers[lexer.GetStringValueUppercase()]) != SpecialIdentifier.None) { switch (si) { case SpecialIdentifier.Truncate: { stmt = new MySqlDdlParser(lexer, exprParser).Truncate(); goto stmtSwitch_break; } case SpecialIdentifier.Savepoint: { stmt = new MySqlMtsParser(lexer).Savepoint(); goto stmtSwitch_break; } case SpecialIdentifier.Rollback: { stmt = new MySqlMtsParser(lexer).Rollback(); goto stmtSwitch_break; } } } goto default; } default: { throw new SqlSyntaxErrorException("sql is not a supported statement"); } } stmtSwitch_break: ; if (isEof) { while (lexer.Token() == MySqlToken.PuncSemicolon) { lexer.NextToken(); } if (lexer.Token() != MySqlToken.Eof) { throw new SqlSyntaxErrorException("Sql syntax error!"); } } return(stmt); } catch (Exception e) { throw new SqlSyntaxErrorException(BuildErrorMsg(e, lexer, sql), e); } }