public static void acceptTableSource()

in core/src/main/java/com/alibaba/druid/sql/SQLUtils.java [977:1330]
314 lines of code
88 McCabe index (conditional complexity)

    public static void acceptTableSource(String sql,
                                         DbType dbType,
                                         Consumer<SQLTableSource> consumer,
                                         Predicate<SQLTableSource> filter) {
        if (sql == null || sql.isEmpty()) {
            return;
        }

        List<SQLStatement> stmtList = new ArrayList<>();

        try {
            SQLStatementParser parser = SQLParserUtils.createSQLStatementParser(sql, dbType, SQLParserFeature.EnableMultiUnion, SQLParserFeature.KeepComments, SQLParserFeature.EnableSQLBinaryOpExprGroup);
            parser.parseStatementList(stmtList, -1, null);
        } catch (Exception ignored) {
            return;
        }

        SQLASTVisitor visitor;
        switch (dbType) {
            case odps:
                visitor = new OdpsASTVisitorAdapter() {
                    @Override
                    public boolean visit(SQLExprTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLJoinTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLSubqueryTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLUnionQueryTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLValuesTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLUnnestTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLWithSubqueryClause.Entry x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLLateralViewTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLAdhocTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }
                };
                break;
            case mysql:
                visitor = new MySqlASTVisitorAdapter() {
                    public boolean visit(SQLExprTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLJoinTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLSubqueryTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLUnionQueryTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLValuesTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLUnnestTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLWithSubqueryClause.Entry x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLLateralViewTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLAdhocTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(MySqlUpdateTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }
                };
                break;
            case oracle:
                visitor = new OracleASTVisitorAdapter() {
                    public boolean visit(SQLExprTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLSubqueryTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLJoinTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLUnionQueryTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLValuesTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLUnnestTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLWithSubqueryClause.Entry x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLLateralViewTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLAdhocTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(OracleSelectTableReference x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(OracleWithSubqueryEntry x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(OracleSelectSubqueryTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }
                };
                break;
            default:
                visitor = new SQLASTVisitorAdapter() {
                    public boolean visit(SQLExprTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLJoinTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLSubqueryTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLValuesTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLUnnestTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLUnionQueryTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLWithSubqueryClause.Entry x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLLateralViewTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }

                    @Override
                    public boolean visit(SQLAdhocTableSource x) {
                        if (filter == null || filter.test(x)) {
                            consumer.accept(x);
                        }
                        return true;
                    }
                };
                break;
        }

        for (SQLStatement stmt : stmtList) {
            stmt.accept(visitor);
        }
    }