OtterMind/Chat2DB · warning · ParamBusinessException

common.paramDetailError

common.paramDetailError

Error message

common.paramDetailError

What it means

ParamBusinessException ('common.paramDetailError') from ExportFactory.getExporter when the requested export type (lowercased) is not one of xls, xlsx, csv, json, sql — no IExportStrategy is registered for it.

Source

Thrown at chat2db-community-server/chat2db-community-domain/chat2db-community-domain-core/src/main/java/ai/chat2db/community/domain/core/impl/task/export/ExportFactory.java:25

import ai.chat2db.community.domain.core.impl.task.export.json.JsonDataExporter;
import ai.chat2db.community.domain.core.impl.task.export.sql.SqlDataExporter;

import java.util.Map;
import java.util.Objects;

public class ExportFactory {
    private static final Map<String, IExportStrategy> exports = Map.of(
            "xls", new XlsDataExporter(),
            "xlsx", new XlsxDataExporter(),
            "csv", new CsvDataExporter(),
            "json", new JsonDataExporter(),
            "sql", new SqlDataExporter()
    );

    public static IExportStrategy getExporter(String type) {
        IExportStrategy dataExportStrategy = exports.get(type.toLowerCase());
        if (Objects.isNull(dataExportStrategy)) {
            throw new ParamBusinessException(type);
        }
        return dataExportStrategy;
    }


}

View on GitHub (pinned to 5ee1e990e7)

Solutions

1. Use one of the supported types: xls, xlsx, csv, json, sql.
2. If a new format is needed, implement IExportStrategy and add it to the exports map in ExportFactory.
3. Validate the type client-side against the supported set before submitting.

Example fix

// before
IExportStrategy s = ExportFactory.getExporter("xml"); // throws
// after
IExportStrategy s = ExportFactory.getExporter("csv");

java.util.Set<String> supported = java.util.Set.of("xls","xlsx","csv","json","sql");
if (type == null || !supported.contains(type.toLowerCase())) throw new ParamBusinessException(type);

boolean isSupportedExportType(String t) {
    return t != null && java.util.Set.of("xls","xlsx","csv","json","sql").contains(t.toLowerCase());
}

When it happens

Trigger: Calling getExporter with an unsupported/typo'd type string (e.g. 'xl', 'xml', 'tsv', null after toLowerCase via NPE, or an empty string).

Common situations: Frontend sends a format the backend doesn't ship; typo in the format selector; new format requested without registering a strategy.

Related errors

• common.paramDetailError
• exportType
• sql
• The baseURL is not valid!
• The baseURL is not valid!

AI-assisted analysis of OtterMind/Chat2DB@5ee1e990e7 (2026-08-14). Data as JSON: /api/errors/2935f30e380dcd3f. Report an issue: GitHub.