Examples with SQLIdentifierExpr com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr used on opensource projects

Example 6 with SQLIdentifierExpr

use of com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr in project druid by alibaba.

the class Demo2 method test_0.

public void test_0() throws Exception {
    String sql = "select * from user where uid = 2 and uname = ?";
    List<Object> parameters = new ArrayList<Object>();
    parameters.add(1);
    parameters.add("wenshao");
    SQLStatementParser parser = new MySqlStatementParser(sql);
    //
    List<SQLStatement> stmtList = parser.parseStatementList();
    SQLStatement first = (SQLStatement) stmtList.get(0);
    MyVisitor visitor = new MyVisitor();
    first.accept(visitor);
    SQLExpr firstVar = visitor.getVariantList().get(0);
    int userId;
    if (firstVar instanceof SQLVariantRefExpr) {
        int varIndex = (Integer) firstVar.getAttribute("varIndex");
        userId = (Integer) parameters.get(varIndex);
    } else {
        userId = ((SQLNumericLiteralExpr) firstVar).getNumber().intValue();
    }
    String tableName;
    if (userId == 1) {
        tableName = "user_1";
    } else {
        tableName = "user_x";
    }
    for (SQLExprTableSource tableSource : visitor.getTableSourceList()) {
        SQLExpr expr = tableSource.getExpr();
        if (expr instanceof SQLIdentifierExpr) {
            SQLIdentifierExpr identExpr = (SQLIdentifierExpr) expr;
            String ident = identExpr.getName();
            if (ident.equals("user")) {
                identExpr.setName(tableName);
            }
        } else if (expr instanceof SQLPropertyExpr) {
            SQLPropertyExpr proExpr = (SQLPropertyExpr) expr;
            String ident = proExpr.getName();
            if (ident.equals("user")) {
                proExpr.setName(tableName);
            }
        }
    }
    String realSql = SQLUtils.toOracleString(first);
    System.out.println(realSql);
}

Example 7 with SQLIdentifierExpr

use of com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr in project druid by alibaba.

the class MySqlSelectIntoParser method parseIntoArgs.

/**
     * parser the select into arguments
     * @return
     */
protected List<SQLExpr> parseIntoArgs() {
    List<SQLExpr> args = new ArrayList<SQLExpr>();
    if (lexer.token() == (Token.INTO)) {
        accept(Token.INTO);
        //lexer.nextToken();
        for (; ; ) {
            SQLExpr var = exprParser.primary();
            if (var instanceof SQLIdentifierExpr) {
                var = new SQLVariantRefExpr(((SQLIdentifierExpr) var).getName());
            }
            args.add(var);
            if (lexer.token() == Token.COMMA) {
                accept(Token.COMMA);
                continue;
            } else {
                break;
            }
        }
    }
    return args;
}

Example 8 with SQLIdentifierExpr

use of com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr in project druid by alibaba.

the class MySqlSelectIntoParser method parseIndexHint.

private void parseIndexHint(MySqlIndexHintImpl hint) {
    if (lexer.token() == Token.INDEX) {
        lexer.nextToken();
    } else {
        accept(Token.KEY);
    }
    if (lexer.token() == Token.FOR) {
        lexer.nextToken();
        if (lexer.token() == Token.JOIN) {
            lexer.nextToken();
            hint.setOption(MySqlIndexHint.Option.JOIN);
        } else if (lexer.token() == Token.ORDER) {
            lexer.nextToken();
            accept(Token.BY);
            hint.setOption(MySqlIndexHint.Option.ORDER_BY);
        } else {
            accept(Token.GROUP);
            accept(Token.BY);
            hint.setOption(MySqlIndexHint.Option.GROUP_BY);
        }
    }
    accept(Token.LPAREN);
    if (lexer.token() == Token.PRIMARY) {
        lexer.nextToken();
        hint.getIndexList().add(new SQLIdentifierExpr("PRIMARY"));
    } else {
        this.exprParser.names(hint.getIndexList());
    }
    accept(Token.RPAREN);
}

Example 9 with SQLIdentifierExpr

use of com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr in project druid by alibaba.

the class MySqlSelectParser method parseIndexHint.

private void parseIndexHint(MySqlIndexHintImpl hint) {
    if (lexer.token() == Token.INDEX) {
        lexer.nextToken();
    } else {
        accept(Token.KEY);
    }
    if (lexer.token() == Token.FOR) {
        lexer.nextToken();
        if (lexer.token() == Token.JOIN) {
            lexer.nextToken();
            hint.setOption(MySqlIndexHint.Option.JOIN);
        } else if (lexer.token() == Token.ORDER) {
            lexer.nextToken();
            accept(Token.BY);
            hint.setOption(MySqlIndexHint.Option.ORDER_BY);
        } else {
            accept(Token.GROUP);
            accept(Token.BY);
            hint.setOption(MySqlIndexHint.Option.GROUP_BY);
        }
    }
    accept(Token.LPAREN);
    if (lexer.token() == Token.PRIMARY) {
        lexer.nextToken();
        hint.getIndexList().add(new SQLIdentifierExpr("PRIMARY"));
    } else {
        this.exprParser.names(hint.getIndexList());
    }
    accept(Token.RPAREN);
}

Example 10 with SQLIdentifierExpr

use of com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr in project druid by alibaba.

the class MySqlStatementParser method parseAlterTable.

protected SQLStatement parseAlterTable(boolean ignore) {
    lexer.nextToken();
    SQLAlterTableStatement stmt = new SQLAlterTableStatement(getDbType());
    stmt.setIgnore(ignore);
    stmt.setName(this.exprParser.name());
    for (; ; ) {
        if (lexer.token() == Token.DROP) {
            parseAlterDrop(stmt);
        } else if (lexer.token() == Token.TRUNCATE) {
            lexer.nextToken();
            accept(Token.PARTITION);
            SQLAlterTableTruncatePartition item = new SQLAlterTableTruncatePartition();
            if (lexer.token() == Token.ALL) {
                item.getPartitions().add(new SQLIdentifierExpr("ALL"));
                lexer.nextToken();
            } else {
                this.exprParser.names(item.getPartitions(), item);
            }
            stmt.addItem(item);
        } else if (identifierEquals("ADD")) {
            lexer.nextToken();
            if (lexer.token() == Token.COLUMN) {
                lexer.nextToken();
                parseAlterTableAddColumn(stmt);
            } else if (lexer.token() == Token.INDEX) {
                SQLAlterTableAddIndex item = parseAlterTableAddIndex();
                item.setParent(stmt);
                stmt.addItem(item);
            } else if (lexer.token() == Token.UNIQUE) {
                SQLAlterTableAddIndex item = parseAlterTableAddIndex();
                item.setParent(stmt);
                stmt.addItem(item);
            } else if (lexer.token() == Token.PRIMARY) {
                SQLPrimaryKey primaryKey = this.exprParser.parsePrimaryKey();
                SQLAlterTableAddConstraint item = new SQLAlterTableAddConstraint(primaryKey);
                stmt.addItem(item);
            } else if (lexer.token() == Token.KEY) {
                // throw new ParserException("TODO " + lexer.token() +
                // " " + lexer.stringVal());
                SQLAlterTableAddIndex item = parseAlterTableAddIndex();
                item.setParent(stmt);
                stmt.addItem(item);
            } else if (lexer.token() == Token.CONSTRAINT) {
                lexer.nextToken();
                SQLName constraintName = this.exprParser.name();
                if (lexer.token() == Token.PRIMARY) {
                    SQLPrimaryKey primaryKey = ((MySqlExprParser) this.exprParser).parsePrimaryKey();
                    primaryKey.setName(constraintName);
                    SQLAlterTableAddConstraint item = new SQLAlterTableAddConstraint(primaryKey);
                    item.setParent(stmt);
                    stmt.addItem(item);
                } else if (lexer.token() == Token.FOREIGN) {
                    MysqlForeignKey fk = this.getExprParser().parseForeignKey();
                    fk.setName(constraintName);
                    fk.setHasConstraint(true);
                    SQLAlterTableAddConstraint item = new SQLAlterTableAddConstraint(fk);
                    stmt.addItem(item);
                } else if (lexer.token() == Token.UNIQUE) {
                    SQLUnique unique = this.exprParser.parseUnique();
                    SQLAlterTableAddConstraint item = new SQLAlterTableAddConstraint(unique);
                    stmt.addItem(item);
                } else {
                    throw new ParserException("TODO " + lexer.token() + " " + lexer.stringVal());
                }
            } else if (lexer.token() == Token.PARTITION) {
                lexer.nextToken();
                SQLAlterTableAddPartition item = new SQLAlterTableAddPartition();
                if (identifierEquals("PARTITIONS")) {
                    lexer.nextToken();
                    item.setPartitionCount(this.exprParser.integerExpr());
                }
                if (lexer.token() == Token.LPAREN) {
                    lexer.nextToken();
                    SQLPartition partition = this.getExprParser().parsePartition();
                    accept(Token.RPAREN);
                    item.addPartition(partition);
                }
                stmt.addItem(item);
            } else if (identifierEquals(FULLTEXT)) {
                throw new ParserException("TODO " + lexer.token() + " " + lexer.stringVal());
            } else if (identifierEquals(SPATIAL)) {
                throw new ParserException("TODO " + lexer.token() + " " + lexer.stringVal());
            } else {
                parseAlterTableAddColumn(stmt);
            }
        } else if (lexer.token() == Token.ALTER) {
            lexer.nextToken();
            if (lexer.token() == Token.COLUMN) {
                lexer.nextToken();
            }
            MySqlAlterTableAlterColumn alterColumn = new MySqlAlterTableAlterColumn();
            alterColumn.setColumn(this.exprParser.name());
            if (lexer.token() == Token.SET) {
                lexer.nextToken();
                accept(Token.DEFAULT);
                alterColumn.setDefaultExpr(this.exprParser.expr());
            } else {
                accept(Token.DROP);
                accept(Token.DEFAULT);
                alterColumn.setDropDefault(true);
            }
            stmt.addItem(alterColumn);
        } else if (identifierEquals("CHANGE")) {
            lexer.nextToken();
            if (lexer.token() == Token.COLUMN) {
                lexer.nextToken();
            }
            MySqlAlterTableChangeColumn item = new MySqlAlterTableChangeColumn();
            item.setColumnName(this.exprParser.name());
            item.setNewColumnDefinition(this.exprParser.parseColumn());
            if (identifierEquals("AFTER")) {
                lexer.nextToken();
                item.setAfterColumn(this.exprParser.name());
            } else if (identifierEquals("FIRST")) {
                lexer.nextToken();
                if (lexer.token() == Token.IDENTIFIER) {
                    item.setFirstColumn(this.exprParser.name());
                } else {
                    item.setFirst(true);
                }
            }
            stmt.addItem(item);
        } else if (identifierEquals("MODIFY")) {
            lexer.nextToken();
            if (lexer.token() == Token.COLUMN) {
                lexer.nextToken();
            }
            boolean paren = false;
            if (lexer.token() == Token.LPAREN) {
                paren = true;
                lexer.nextToken();
            }
            for (; ; ) {
                MySqlAlterTableModifyColumn item = new MySqlAlterTableModifyColumn();
                item.setNewColumnDefinition(this.exprParser.parseColumn());
                if (identifierEquals("AFTER")) {
                    lexer.nextToken();
                    item.setAfterColumn(this.exprParser.name());
                } else if (identifierEquals("FIRST")) {
                    lexer.nextToken();
                    if (lexer.token() == Token.IDENTIFIER) {
                        item.setFirstColumn(this.exprParser.name());
                    } else {
                        item.setFirst(true);
                    }
                }
                stmt.addItem(item);
                if (paren && lexer.token() == Token.COMMA) {
                    lexer.nextToken();
                    continue;
                }
                break;
            }
            if (paren) {
                accept(Token.RPAREN);
            }
        } else if (lexer.token() == Token.DISABLE) {
            lexer.nextToken();
            if (lexer.token() == Token.CONSTRAINT) {
                lexer.nextToken();
                SQLAlterTableDisableConstraint item = new SQLAlterTableDisableConstraint();
                item.setConstraintName(this.exprParser.name());
                stmt.addItem(item);
            } else {
                acceptIdentifier("KEYS");
                SQLAlterTableDisableKeys item = new SQLAlterTableDisableKeys();
                stmt.addItem(item);
            }
        } else if (lexer.token() == Token.ENABLE) {
            lexer.nextToken();
            if (lexer.token() == Token.CONSTRAINT) {
                lexer.nextToken();
                SQLAlterTableEnableConstraint item = new SQLAlterTableEnableConstraint();
                item.setConstraintName(this.exprParser.name());
                stmt.addItem(item);
            } else {
                acceptIdentifier("KEYS");
                SQLAlterTableEnableKeys item = new SQLAlterTableEnableKeys();
                stmt.addItem(item);
            }
        } else if (identifierEquals("RENAME")) {
            lexer.nextToken();
            if (lexer.token() == Token.TO || lexer.token() == Token.AS) {
                lexer.nextToken();
            }
            MySqlRenameTableStatement renameStmt = new MySqlRenameTableStatement();
            MySqlRenameTableStatement.Item item = new MySqlRenameTableStatement.Item();
            item.setName(stmt.getTableSource().getExpr());
            item.setTo(this.exprParser.name());
            renameStmt.addItem(item);
            return renameStmt;
        } else if (lexer.token() == Token.ORDER) {
            throw new ParserException("TODO " + lexer.token() + " " + lexer.stringVal());
        } else if (identifierEquals("CONVERT")) {
            lexer.nextToken();
            accept(Token.TO);
            acceptIdentifier("CHARACTER");
            accept(Token.SET);
            SQLAlterTableConvertCharSet item = new SQLAlterTableConvertCharSet();
            SQLExpr charset = this.exprParser.primary();
            item.setCharset(charset);
            if (identifierEquals("COLLATE")) {
                lexer.nextToken();
                SQLExpr collate = this.exprParser.primary();
                item.setCollate(collate);
            }
            stmt.addItem(item);
        } else if (lexer.token() == Token.DEFAULT) {
            throw new ParserException("TODO " + lexer.token() + " " + lexer.stringVal());
        } else if (identifierEquals("DISCARD")) {
            lexer.nextToken();
            if (lexer.token() == Token.PARTITION) {
                lexer.nextToken();
                SQLAlterTableDiscardPartition item = new SQLAlterTableDiscardPartition();
                if (lexer.token() == Token.ALL) {
                    lexer.nextToken();
                    item.getPartitions().add(new SQLIdentifierExpr("ALL"));
                } else {
                    this.exprParser.names(item.getPartitions(), item);
                }
                stmt.addItem(item);
            } else {
                accept(Token.TABLESPACE);
                MySqlAlterTableDiscardTablespace item = new MySqlAlterTableDiscardTablespace();
                stmt.addItem(item);
            }
        } else if (lexer.token() == Token.CHECK) {
            lexer.nextToken();
            accept(Token.PARTITION);
            SQLAlterTableCheckPartition item = new SQLAlterTableCheckPartition();
            if (lexer.token() == Token.ALL) {
                lexer.nextToken();
                item.getPartitions().add(new SQLIdentifierExpr("ALL"));
            } else {
                this.exprParser.names(item.getPartitions(), item);
            }
            stmt.addItem(item);
        } else if (identifierEquals("IMPORT")) {
            lexer.nextToken();
            if (lexer.token() == Token.PARTITION) {
                lexer.nextToken();
                SQLAlterTableImportPartition item = new SQLAlterTableImportPartition();
                if (lexer.token() == Token.ALL) {
                    lexer.nextToken();
                    item.getPartitions().add(new SQLIdentifierExpr("ALL"));
                } else {
                    this.exprParser.names(item.getPartitions(), item);
                }
                stmt.addItem(item);
            } else {
                accept(Token.TABLESPACE);
                MySqlAlterTableImportTablespace item = new MySqlAlterTableImportTablespace();
                stmt.addItem(item);
            }
        } else if (lexer.token() == Token.ANALYZE) {
            lexer.nextToken();
            accept(Token.PARTITION);
            SQLAlterTableAnalyzePartition item = new SQLAlterTableAnalyzePartition();
            if (lexer.token() == Token.ALL) {
                lexer.nextToken();
                item.getPartitions().add(new SQLIdentifierExpr("ALL"));
            } else {
                this.exprParser.names(item.getPartitions(), item);
            }
            stmt.addItem(item);
        } else if (identifierEquals("FORCE")) {
            throw new ParserException("TODO " + lexer.token() + " " + lexer.stringVal());
        } else if (identifierEquals("COALESCE")) {
            lexer.nextToken();
            accept(Token.PARTITION);
            SQLAlterTableCoalescePartition item = new SQLAlterTableCoalescePartition();
            SQLIntegerExpr countExpr = this.exprParser.integerExpr();
            item.setCount(countExpr);
            stmt.addItem(item);
        } else if (identifierEquals("REORGANIZE")) {
            lexer.nextToken();
            accept(Token.PARTITION);
            SQLAlterTableReOrganizePartition item = new SQLAlterTableReOrganizePartition();
            this.exprParser.names(item.getNames(), item);
            accept(Token.INTO);
            accept(Token.LPAREN);
            for (; ; ) {
                SQLPartition partition = this.getExprParser().parsePartition();
                item.addPartition(partition);
                if (lexer.token() == Token.COMMA) {
                    lexer.nextToken();
                    continue;
                } else {
                    break;
                }
            }
            accept(Token.RPAREN);
            stmt.addItem(item);
        } else if (identifierEquals("EXCHANGE")) {
            throw new ParserException("TODO " + lexer.token() + " " + lexer.stringVal());
        } else if (lexer.token() == Token.OPTIMIZE) {
            lexer.nextToken();
            accept(Token.PARTITION);
            SQLAlterTableOptimizePartition item = new SQLAlterTableOptimizePartition();
            if (lexer.token() == Token.ALL) {
                lexer.nextToken();
                item.getPartitions().add(new SQLIdentifierExpr("ALL"));
            } else {
                this.exprParser.names(item.getPartitions(), item);
            }
            stmt.addItem(item);
        } else if (identifierEquals("REBUILD")) {
            lexer.nextToken();
            accept(Token.PARTITION);
            SQLAlterTableRebuildPartition item = new SQLAlterTableRebuildPartition();
            if (lexer.token() == Token.ALL) {
                lexer.nextToken();
                item.getPartitions().add(new SQLIdentifierExpr("ALL"));
            } else {
                this.exprParser.names(item.getPartitions(), item);
            }
            stmt.addItem(item);
        } else if (identifierEquals("REPAIR")) {
            lexer.nextToken();
            accept(Token.PARTITION);
            SQLAlterTableRepairPartition item = new SQLAlterTableRepairPartition();
            if (lexer.token() == Token.ALL) {
                lexer.nextToken();
                item.getPartitions().add(new SQLIdentifierExpr("ALL"));
            } else {
                this.exprParser.names(item.getPartitions(), item);
            }
            stmt.addItem(item);
        } else if (identifierEquals("REMOVE")) {
            lexer.nextToken();
            acceptIdentifier("PARTITIONING");
            stmt.setRemovePatiting(true);
        } else if (identifierEquals("UPGRADE")) {
            lexer.nextToken();
            acceptIdentifier("PARTITIONING");
            stmt.setUpgradePatiting(true);
        } else if (identifierEquals("ALGORITHM")) {
            lexer.nextToken();
            accept(Token.EQ);
            stmt.addItem(new MySqlAlterTableOption("ALGORITHM", lexer.stringVal()));
            lexer.nextToken();
        } else if (identifierEquals(ENGINE)) {
            lexer.nextToken();
            accept(Token.EQ);
            stmt.addItem(new MySqlAlterTableOption(ENGINE, lexer.stringVal()));
            lexer.nextToken();
        } else if (identifierEquals(AUTO_INCREMENT)) {
            lexer.nextToken();
            accept(Token.EQ);
            stmt.addItem(new MySqlAlterTableOption(AUTO_INCREMENT, lexer.integerValue()));
            lexer.nextToken();
        } else if (identifierEquals(COLLATE2)) {
            lexer.nextToken();
            accept(Token.EQ);
            stmt.addItem(new MySqlAlterTableOption(COLLATE2, lexer.stringVal()));
            lexer.nextToken();
        } else if (identifierEquals("PACK_KEYS")) {
            lexer.nextToken();
            accept(Token.EQ);
            if (identifierEquals("PACK")) {
                lexer.nextToken();
                accept(Token.ALL);
                stmt.addItem(new MySqlAlterTableOption("PACK_KEYS", "PACK ALL"));
            } else {
                stmt.addItem(new MySqlAlterTableOption("PACK_KEYS", lexer.stringVal()));
                lexer.nextToken();
            }
        } else if (identifierEquals(CHARACTER)) {
            lexer.nextToken();
            accept(Token.SET);
            accept(Token.EQ);
            MySqlAlterTableCharacter item = new MySqlAlterTableCharacter();
            item.setCharacterSet(this.exprParser.primary());
            if (lexer.token() == Token.COMMA) {
                lexer.nextToken();
                acceptIdentifier(COLLATE2);
                accept(Token.EQ);
                item.setCollate(this.exprParser.primary());
            }
            stmt.addItem(item);
        } else if (lexer.token() == Token.COMMENT) {
            lexer.nextToken();
            if (lexer.token() == Token.EQ) {
                accept(Token.EQ);
            }
            stmt.addItem(new MySqlAlterTableOption("COMMENT", '\'' + lexer.stringVal() + '\''));
            lexer.nextToken();
        } else if (lexer.token() == Token.UNION) {
            lexer.nextToken();
            if (lexer.token() == Token.EQ) {
                lexer.nextToken();
            }
            accept(Token.LPAREN);
            SQLTableSource tableSrc = this.createSQLSelectParser().parseTableSource();
            stmt.getTableOptions().put("UNION", tableSrc);
            accept(Token.RPAREN);
        } else if (identifierEquals("ROW_FORMAT")) {
            lexer.nextToken();
            if (lexer.token() == Token.EQ) {
                lexer.nextToken();
            }
            if (lexer.token() == Token.DEFAULT || lexer.token() == Token.IDENTIFIER) {
                SQLIdentifierExpr rowFormat = new SQLIdentifierExpr(lexer.stringVal());
                lexer.nextToken();
                stmt.getTableOptions().put("ROW_FORMAT", rowFormat);
            } else {
                throw new ParserException("illegal syntax.");
            }
        } else {
            break;
        }
        if (lexer.token() == Token.COMMA) {
            lexer.nextToken();
            continue;
        } else {
            break;
        }
    }
    return stmt;
}