Examples with AntsparkCreateTableStatement com.alibaba.druid.sql.dialect.antspark.ast.AntsparkCreateTableStatement used on opensource projects

Example 1 with AntsparkCreateTableStatement

use of com.alibaba.druid.sql.dialect.antspark.ast.AntsparkCreateTableStatement in project druid by alibaba.

the class AntsparkCreateTableParser method parseCreateTable.

public SQLCreateTableStatement parseCreateTable(boolean acceptCreate) {
    AntsparkCreateTableStatement stmt = new AntsparkCreateTableStatement();
    if (acceptCreate) {
        if (lexer.hasComment() && lexer.isKeepComments()) {
            stmt.addBeforeComment(lexer.readAndResetComments());
        }
        accept(Token.CREATE);
    }
    if (lexer.identifierEquals(FnvHash.Constants.EXTERNAL)) {
        lexer.nextToken();
        stmt.setExternal(true);
    }
    if (lexer.identifierEquals(FnvHash.Constants.TEMPORARY)) {
        lexer.nextToken();
        stmt.setType(SQLCreateTableStatement.Type.TEMPORARY);
    }
    accept(Token.TABLE);
    if (lexer.token() == Token.IF || lexer.identifierEquals(FnvHash.Constants.IF)) {
        lexer.nextToken();
        accept(Token.NOT);
        accept(Token.EXISTS);
        stmt.setIfNotExiists(true);
    }
    stmt.setName(this.exprParser.name());
    if (lexer.token() == Token.LPAREN) {
        lexer.nextToken();
        for (; ; ) {
            Token token = lexer.token();
            if (// 
            token == Token.IDENTIFIER || token == Token.LITERAL_ALIAS) {
                SQLColumnDefinition column = this.exprParser.parseColumn();
                stmt.getTableElementList().add(column);
            } else if (// 
            token == Token.PRIMARY || // 
            token == Token.UNIQUE || // 
            token == Token.CHECK || token == Token.CONSTRAINT || token == Token.FOREIGN) {
                SQLConstraint constraint = this.exprParser.parseConstaint();
                constraint.setParent(stmt);
                stmt.getTableElementList().add((SQLTableElement) constraint);
            } else if (token == Token.TABLESPACE) {
                throw new ParserException("TODO " + lexer.info());
            } else {
                SQLColumnDefinition column = this.exprParser.parseColumn();
                stmt.getTableElementList().add(column);
            }
            if (lexer.token() == Token.COMMA) {
                lexer.nextToken();
                if (lexer.token() == Token.RPAREN) {
                    // compatible for sql server
                    break;
                }
                continue;
            }
            break;
        }
        accept(Token.RPAREN);
    }
    // add using
    if (lexer.token() == Token.USING) {
        lexer.nextToken();
        SQLName expr = this.exprParser.name();
        stmt.setDatasource(expr);
    }
    if (lexer.token() == Token.COMMENT) {
        lexer.nextToken();
        SQLExpr comment = this.exprParser.expr();
        stmt.setComment(comment);
    }
    if (lexer.identifierEquals(FnvHash.Constants.MAPPED)) {
        lexer.nextToken();
        accept(Token.BY);
        this.exprParser.parseAssignItem(stmt.getMappedBy(), stmt);
    }
    if (lexer.token() == Token.PARTITIONED) {
        lexer.nextToken();
        accept(Token.BY);
        accept(Token.LPAREN);
        for (; ; ) {
            if (lexer.token() != Token.IDENTIFIER) {
                throw new ParserException("expect identifier. " + lexer.info());
            }
            SQLColumnDefinition column = this.exprParser.parseColumn();
            stmt.addPartitionColumn(column);
            if (lexer.isKeepComments() && lexer.hasComment()) {
                column.addAfterComment(lexer.readAndResetComments());
            }
            if (lexer.token() != Token.COMMA) {
                break;
            } else {
                lexer.nextToken();
                if (lexer.isKeepComments() && lexer.hasComment()) {
                    column.addAfterComment(lexer.readAndResetComments());
                }
            }
        }
        accept(Token.RPAREN);
    }
    if (lexer.identifierEquals(FnvHash.Constants.CLUSTERED)) {
        lexer.nextToken();
        accept(Token.BY);
        accept(Token.LPAREN);
        for (; ; ) {
            SQLSelectOrderByItem item = this.exprParser.parseSelectOrderByItem();
            stmt.addClusteredByItem(item);
            if (lexer.token() == Token.COMMA) {
                lexer.nextToken();
                continue;
            }
            break;
        }
        accept(Token.RPAREN);
    }
    if (lexer.identifierEquals(FnvHash.Constants.SKEWED)) {
        lexer.nextToken();
        accept(Token.BY);
        accept(Token.LPAREN);
        this.exprParser.exprList(stmt.getSkewedBy(), stmt);
        accept(Token.RPAREN);
        accept(Token.ON);
        accept(Token.LPAREN);
        for (; ; ) {
            if (lexer.token() == Token.LPAREN) {
                SQLListExpr list = new SQLListExpr();
                lexer.nextToken();
                this.exprParser.exprList(list.getItems(), list);
                accept(Token.RPAREN);
                stmt.addSkewedByOn(list);
            } else {
                SQLExpr expr = this.exprParser.expr();
                stmt.addSkewedByOn(expr);
            }
            if (lexer.token() == Token.COMMA) {
                lexer.nextToken();
                continue;
            }
            break;
        }
        accept(Token.RPAREN);
    }
    if (lexer.identifierEquals(FnvHash.Constants.SORTED)) {
        parseSortedBy(stmt);
    }
    if (lexer.token() == Token.ROW || lexer.identifierEquals(FnvHash.Constants.ROW)) {
        parseRowFormat(stmt);
    }
    if (lexer.identifierEquals(FnvHash.Constants.SORTED)) {
        parseSortedBy(stmt);
    }
    if (stmt.getClusteredBy().size() > 0 || stmt.getSortedBy().size() > 0) {
        accept(Token.INTO);
        if (lexer.token() == Token.LITERAL_INT) {
            stmt.setBuckets(lexer.integerValue().intValue());
            lexer.nextToken();
        } else {
            throw new ParserException("into buckets must be integer. " + lexer.info());
        }
        acceptIdentifier("BUCKETS");
    }
    if (lexer.token() == Token.ROW || lexer.identifierEquals(FnvHash.Constants.ROW)) {
        parseRowFormat(stmt);
    }
    if (lexer.identifierEquals(FnvHash.Constants.STORED)) {
        lexer.nextToken();
        accept(Token.AS);
        if (lexer.identifierEquals(FnvHash.Constants.INPUTFORMAT)) {
            HiveInputOutputFormat format = new HiveInputOutputFormat();
            lexer.nextToken();
            format.setInput(this.exprParser.primary());
            if (lexer.identifierEquals(FnvHash.Constants.OUTPUTFORMAT)) {
                lexer.nextToken();
                format.setOutput(this.exprParser.primary());
            }
            stmt.setStoredAs(format);
        } else {
            SQLName name = this.exprParser.name();
            stmt.setStoredAs(name);
        }
    }
    if (lexer.identifierEquals(FnvHash.Constants.LOCATION)) {
        lexer.nextToken();
        SQLExpr location = this.exprParser.expr();
        stmt.setLocation(location);
    }
    if (lexer.identifierEquals(FnvHash.Constants.TBLPROPERTIES)) {
        lexer.nextToken();
        accept(Token.LPAREN);
        for (; ; ) {
            String name = lexer.stringVal();
            lexer.nextToken();
            accept(Token.EQ);
            SQLExpr value = this.exprParser.primary();
            stmt.addOption(name, value);
            if (lexer.token() == Token.COMMA) {
                lexer.nextToken();
                if (lexer.token() == Token.RPAREN) {
                    break;
                }
                continue;
            }
            break;
        }
        accept(Token.RPAREN);
    }
    if (lexer.identifierEquals(FnvHash.Constants.META)) {
        lexer.nextToken();
        acceptIdentifier("LIFECYCLE");
        stmt.setMetaLifeCycle(this.exprParser.primary());
    }
    if (lexer.token() == Token.AS) {
        lexer.nextToken();
        SQLSelect select = this.createSQLSelectParser().select();
        stmt.setSelect(select);
    }
    if (lexer.token() == Token.LIKE) {
        lexer.nextToken();
        SQLName name = this.exprParser.name();
        stmt.setLike(name);
    }
    if (lexer.token() == Token.COMMENT) {
        lexer.nextToken();
        SQLExpr comment = this.exprParser.expr();
        stmt.setComment(comment);
    }
    return stmt;
}