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Example 1 with OracleBinaryFloatExpr

use of com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleBinaryFloatExpr in project druid by alibaba.

the class OracleExprParser method primary.

public SQLExpr primary() {
    final Token tok = lexer.token();
    SQLExpr sqlExpr = null;
    switch(tok) {
        case SYSDATE:
            lexer.nextToken();
            OracleSysdateExpr sysdate = new OracleSysdateExpr();
            if (lexer.token() == Token.MONKEYS_AT) {
                lexer.nextToken();
                accept(Token.BANG);
                sysdate.setOption("!");
            }
            sqlExpr = sysdate;
            return primaryRest(sqlExpr);
        case PRIOR:
            lexer.nextToken();
            sqlExpr = expr();
            sqlExpr = new SQLUnaryExpr(SQLUnaryOperator.Prior, sqlExpr);
            return primaryRest(sqlExpr);
        case COLON:
            lexer.nextToken();
            if (lexer.token() == Token.LITERAL_INT) {
                String name = ":" + lexer.numberString();
                lexer.nextToken();
                return new SQLVariantRefExpr(name);
            } else if (lexer.token() == Token.IDENTIFIER) {
                String name = lexer.stringVal();
                if (name.charAt(0) == 'B' || name.charAt(0) == 'b') {
                    lexer.nextToken();
                    return new SQLVariantRefExpr(":" + name);
                }
                throw new ParserException("syntax error : " + lexer.token() + " " + lexer.stringVal());
            } else {
                throw new ParserException("syntax error : " + lexer.token());
            }
        case LITERAL_ALIAS:
            String alias = '"' + lexer.stringVal() + '"';
            lexer.nextToken();
            return primaryRest(new SQLIdentifierExpr(alias));
        case BINARY_FLOAT:
            OracleBinaryFloatExpr floatExpr = new OracleBinaryFloatExpr();
            floatExpr.setValue(Float.parseFloat(lexer.numberString()));
            lexer.nextToken();
            return primaryRest(floatExpr);
        case BINARY_DOUBLE:
            OracleBinaryDoubleExpr doubleExpr = new OracleBinaryDoubleExpr();
            doubleExpr.setValue(Double.parseDouble(lexer.numberString()));
            lexer.nextToken();
            return primaryRest(doubleExpr);
        case TABLE:
            lexer.nextToken();
            return primaryRest(new SQLIdentifierExpr("TABLE"));
        case PLUS:
            lexer.nextToken();
            switch(lexer.token()) {
                case LITERAL_INT:
                    sqlExpr = new SQLIntegerExpr(lexer.integerValue());
                    lexer.nextToken();
                    break;
                case LITERAL_FLOAT:
                    sqlExpr = new SQLNumberExpr(lexer.decimalValue());
                    lexer.nextToken();
                    break;
                case BINARY_FLOAT:
                    sqlExpr = new OracleBinaryFloatExpr(Float.parseFloat(lexer.numberString()));
                    lexer.nextToken();
                    break;
                case BINARY_DOUBLE:
                    sqlExpr = new OracleBinaryDoubleExpr(Double.parseDouble(lexer.numberString()));
                    lexer.nextToken();
                    break;
                case LPAREN:
                    lexer.nextToken();
                    sqlExpr = expr();
                    accept(Token.RPAREN);
                    sqlExpr = new SQLUnaryExpr(SQLUnaryOperator.Plus, sqlExpr);
                    break;
                default:
                    throw new ParserException("TODO");
            }
            return primaryRest(sqlExpr);
        case SUB:
            lexer.nextToken();
            switch(lexer.token()) {
                case LITERAL_INT:
                    Number integerValue = lexer.integerValue();
                    if (integerValue instanceof Integer) {
                        int intVal = ((Integer) integerValue).intValue();
                        if (intVal == Integer.MIN_VALUE) {
                            integerValue = Long.valueOf(((long) intVal) * -1);
                        } else {
                            integerValue = Integer.valueOf(intVal * -1);
                        }
                    } else if (integerValue instanceof Long) {
                        long longVal = ((Long) integerValue).longValue();
                        if (longVal == 2147483648L) {
                            integerValue = Integer.valueOf((int) (((long) longVal) * -1));
                        } else {
                            integerValue = Long.valueOf(longVal * -1);
                        }
                    } else {
                        integerValue = ((BigInteger) integerValue).negate();
                    }
                    sqlExpr = new SQLIntegerExpr(integerValue);
                    lexer.nextToken();
                    break;
                case LITERAL_FLOAT:
                    sqlExpr = new SQLNumberExpr(lexer.decimalValue().negate());
                    lexer.nextToken();
                    break;
                case BINARY_FLOAT:
                    sqlExpr = new OracleBinaryFloatExpr(Float.parseFloat(lexer.numberString()) * -1);
                    lexer.nextToken();
                    break;
                case BINARY_DOUBLE:
                    sqlExpr = new OracleBinaryDoubleExpr(Double.parseDouble(lexer.numberString()) * -1);
                    lexer.nextToken();
                    break;
                case VARIANT:
                case IDENTIFIER:
                    sqlExpr = expr();
                    sqlExpr = new SQLUnaryExpr(SQLUnaryOperator.Negative, sqlExpr);
                    break;
                case LPAREN:
                    lexer.nextToken();
                    sqlExpr = expr();
                    accept(Token.RPAREN);
                    sqlExpr = new SQLUnaryExpr(SQLUnaryOperator.Negative, sqlExpr);
                    break;
                default:
                    throw new ParserException("TODO " + lexer.token());
            }
            return primaryRest(sqlExpr);
        case CURSOR:
            lexer.nextToken();
            accept(Token.LPAREN);
            OracleSelect select = createSelectParser().select();
            OracleCursorExpr cursorExpr = new OracleCursorExpr(select);
            accept(Token.RPAREN);
            sqlExpr = cursorExpr;
            return primaryRest(sqlExpr);
        case MODEL:
        case PCTFREE:
        case INITRANS:
        case MAXTRANS:
        case SEGMENT:
        case CREATION:
        case IMMEDIATE:
        case DEFERRED:
        case STORAGE:
        case NEXT:
        case MINEXTENTS:
        case MAXEXTENTS:
        case MAXSIZE:
        case PCTINCREASE:
        case FLASH_CACHE:
        case CELL_FLASH_CACHE:
        case KEEP:
        case NONE:
        case LOB:
        case STORE:
        case ROW:
        case CHUNK:
        case CACHE:
        case NOCACHE:
        case LOGGING:
        case NOCOMPRESS:
        case KEEP_DUPLICATES:
        case EXCEPTIONS:
        case PURGE:
            sqlExpr = new SQLIdentifierExpr(lexer.stringVal());
            lexer.nextToken();
            return primaryRest(sqlExpr);
        default:
            return super.primary();
    }
}
Also used : ParserException(com.alibaba.druid.sql.parser.ParserException) OracleSysdateExpr(com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleSysdateExpr) SQLIdentifierExpr(com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr) OracleBinaryFloatExpr(com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleBinaryFloatExpr) Token(com.alibaba.druid.sql.parser.Token) SQLNumberExpr(com.alibaba.druid.sql.ast.expr.SQLNumberExpr) SQLExpr(com.alibaba.druid.sql.ast.SQLExpr) SQLForeignKeyConstraint(com.alibaba.druid.sql.ast.statement.SQLForeignKeyConstraint) OracleConstraint(com.alibaba.druid.sql.dialect.oracle.ast.stmt.OracleConstraint) BigInteger(java.math.BigInteger) OracleCursorExpr(com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleCursorExpr) OracleSelect(com.alibaba.druid.sql.dialect.oracle.ast.stmt.OracleSelect) SQLVariantRefExpr(com.alibaba.druid.sql.ast.expr.SQLVariantRefExpr) SQLIntegerExpr(com.alibaba.druid.sql.ast.expr.SQLIntegerExpr) BigInteger(java.math.BigInteger) SQLUnaryExpr(com.alibaba.druid.sql.ast.expr.SQLUnaryExpr) OracleBinaryDoubleExpr(com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleBinaryDoubleExpr)

Aggregations

SQLExpr (com.alibaba.druid.sql.ast.SQLExpr)1 SQLIdentifierExpr (com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr)1 SQLIntegerExpr (com.alibaba.druid.sql.ast.expr.SQLIntegerExpr)1 SQLNumberExpr (com.alibaba.druid.sql.ast.expr.SQLNumberExpr)1 SQLUnaryExpr (com.alibaba.druid.sql.ast.expr.SQLUnaryExpr)1 SQLVariantRefExpr (com.alibaba.druid.sql.ast.expr.SQLVariantRefExpr)1 SQLForeignKeyConstraint (com.alibaba.druid.sql.ast.statement.SQLForeignKeyConstraint)1 OracleBinaryDoubleExpr (com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleBinaryDoubleExpr)1 OracleBinaryFloatExpr (com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleBinaryFloatExpr)1 OracleCursorExpr (com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleCursorExpr)1 OracleSysdateExpr (com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleSysdateExpr)1 OracleConstraint (com.alibaba.druid.sql.dialect.oracle.ast.stmt.OracleConstraint)1 OracleSelect (com.alibaba.druid.sql.dialect.oracle.ast.stmt.OracleSelect)1 ParserException (com.alibaba.druid.sql.parser.ParserException)1 Token (com.alibaba.druid.sql.parser.Token)1 BigInteger (java.math.BigInteger)1