How to use

getMimeType

method

in

org.geoserver.ows.Response

public String getMimeType(Object value, Operation operation) throws ServiceException {
  return delegate.getMimeType(value, operation);
}

/**
 * Get a name for a Content-Disposition attachment filename. The mimetype should match the file
 * extension. The default implementation will use the mimetype and operation id to attempt to
 * build a name.
 *
 * @param value The value that will be serialized
 * @param operation The operation being performed
 * @return null or a filename such as result.txt or map.tiff
 */
public String getAttachmentFileName(Object value, Operation operation) {
  String mimeType = getMimeType(value, operation);
  String opName = operation.getId();
  String name = null;
  if (mimeType != null) {
    name = "geoserver";
    if (opName != null) {
      name = name + "-" + opName;
    }
    String[] typeParts = mimeType.split(";");
    name = name + "." + typeParts[0].split("/")[0];
  }
  return name;
}

String mimeType = response.getMimeType(result, opDescriptor);

@Override
public Response responseDispatched(
    Request request, Operation operation, Object result, Response response) {
  Service service = operation.getService();
  if (service == null
      || service.getId() == null
      || !service.getId().equalsIgnoreCase("wfs")) {
    // not a WFS service so we are not interested in it
    return response;
  }
  String responseMimeType = response.getMimeType(result, operation);
  if (!isGmlBased(responseMimeType)) {
    // no a GML based response
    return response;
  }
  WFSInfo wfs = geoserver.getService(WFSInfo.class);
  GMLInfo gmlInfo =
      wfs.getGML().get(WFSInfo.Version.negotiate(service.getVersion().toString()));
  if (gmlInfo == null || !gmlInfo.getMimeTypeToForce().isPresent()) {
    // we don't need to force any specific MIME type
    return response;
  }
  // enforce the configured MIME type
  String mimeType = gmlInfo.getMimeTypeToForce().get();
  LOGGER.info(
      String.format(
          "Overriding MIME type '%s' with '%s' for WFS operation '%s'.",
          responseMimeType, mimeType, operation.getId()));
  return new ResponseWrapper(response, mimeType);
}

@Override
public Response responseDispatched(
    Request request, Operation operation, Object result, Response response) {
  // is this a feature response we are about to encode?
  if (result instanceof FeatureCollectionResponse) {
    HttpServletResponse httpResponse = request.getHttpResponse();
    FeatureCollectionResponse fcr = (FeatureCollectionResponse) result;
    String contentType = response.getMimeType(result, operation);
    if (fcr.getPrevious() != null) {
      addLink(httpResponse, "prev", contentType, fcr.getPrevious());
    }
    if (fcr.getNext() != null) {
      addLink(httpResponse, "next", contentType, fcr.getNext());
    }
  }
  return response;
}