[ESMO] [KNOWAGE-9534] implement pdf export requirements from ESMO

(cherry picked from commit a6a436d)

Author: eng-dedalus

knowage-core/src/main/java/it/eng/knowage/dashboardexport/DashboardExportResource.java

@@ -18,6 +18,8 @@
 import javax.ws.rs.core.Context;
 import javax.ws.rs.core.MediaType;
 
+import java.util.Locale;
+
 import static java.nio.charset.StandardCharsets.UTF_8;
 
 @Path("/1.0/dashboardExport")
@@ -111,11 +113,12 @@ private static String getWidgetName(String widgetName, JSONObject body) throws J
     public void downloadPdf(@Context HttpServletRequest req) {
         logger.debug("IN");
         response.setCharacterEncoding(UTF_8.name());
+        Locale locale = req.getLocale();
         try {
             JSONObject body = RestUtilities.readBodyAsJSONObject(req);
             String token = request.getHeader(TOKEN_HEADER);
             String userId = token.substring(7);
-            DashboardPdfExporter dashboardPdfExporter = new DashboardPdfExporter(userId, body);
+            DashboardPdfExporter dashboardPdfExporter = new DashboardPdfExporter(userId, locale);
             String mimeType = dashboardPdfExporter.getMimeType();
 
             if (!MimeUtils.isValidMimeType(mimeType))
@@ -126,6 +129,26 @@ public void downloadPdf(@Context HttpServletRequest req) {
                 data = dashboardPdfExporter.getBinaryData(body);
                 String widgetName = body.getJSONObject("settings").getJSONObject("style").getJSONObject("title")
                         .optString("text");
+                if (widgetName != null && widgetName.startsWith("$P{")) {
+                    // Extract the value between {} - e.g., "$P{country}" -> "country"
+                    int startIndex = widgetName.indexOf('{') + 1;
+                    int endIndex = widgetName.indexOf('}');
+                    String placeholderToReplace = (startIndex > 0 && endIndex > startIndex)
+                            ? widgetName.substring(startIndex, endIndex)
+                            : "";
+                    String remainingPart = widgetName.substring(endIndex + 1);
+                    try {
+                        for (int i = 0; i < body.optJSONArray("drivers").length(); i++) {
+                            JSONObject driver = body.optJSONArray("drivers").getJSONObject(i);
+                            if (driver.getString("urlName").equals(placeholderToReplace)) {
+                                widgetName= driver.getString("value") + remainingPart;
+                                break;
+                            }
+                        }
+                    } catch (JSONException e) {
+                        throw new RuntimeException(e);
+                    }
+                }
                 response.setHeader("Content-Disposition", "attachment; fileName=" + widgetName + "." + "pdf");
                 response.setContentType(MediaType.APPLICATION_OCTET_STREAM);
                 response.setHeader("Content-length", Integer.toString(data.length));

knowage-export/src/main/java/it/eng/knowage/engine/api/export/dashboard/DashboardExporter.java

@@ -34,7 +34,7 @@
 public class DashboardExporter {
 
     private final JSONObjectUtils jsonObjectUtils;
-    private final String userUniqueIdentifier;
+    protected final String userUniqueIdentifier;
     private String imageB64;
     protected Map<String, String> i18nMessages;
     protected Locale locale;
@@ -196,13 +196,18 @@ protected Map<String, Map<String, JSONArray>> getSelections(JSONObject body) {
             }
             return selectionsToReturn;
         } catch (JSONException e) {
-            return Collections.emptyMap();
+            throw new SpagoBIRuntimeException("Cannot get selections from body", e);
         }
     }
 
     private void loopOverSelectionValues(JSONObject selection, Map<String, Map<String, JSONArray>> selectionsToReturn) throws JSONException {
         for (int j = 0; j < selection.getJSONArray("value").length(); j++) {
-            String valueToInsert = "('" + selection.getJSONArray("value").getString(j) + "')";
+            String valueToInsert;
+            try {
+                valueToInsert = "('" + selection.getJSONArray("value").getString(j) + "')";
+            } catch (JSONException e) {
+                valueToInsert = "('" + selection.getJSONArray("value").getInt(j) + "')";
+            }
             selectionsToReturn.get(selection.getString("datasetLabel")).get(selection.getString("columnName")).put(valueToInsert);
         }
     }
@@ -286,7 +291,20 @@ public JSONObject transformParametersForDatastore(JSONObject body, JSONArray par
             for (int i = 0; i < parameters.length(); i++) {
                 JSONObject parameter = parameters.getJSONObject(i);
                 if (parameter.getInt("dataset") == body.getInt("dataset")) {
-                    parametersToSend.put(parameter.getString("name"), parameter.get("value"));
+                    if (parameter.get("value") != null && !parameter.getString("value").equals("null")) {
+                        parametersToSend.put(parameter.getString("name"), parameter.get("value"));
+                    } else {
+                        JSONArray drivers = body.optJSONArray("drivers") != null ? body.getJSONArray("drivers") : null;
+                        if (drivers != null) {
+                            for (int j = 0; j < drivers.length(); j++) {
+                                JSONObject driver = drivers.getJSONObject(j);
+                                if (driver.getString("urlName").equals(parameter.getString("name"))) {
+                                    parametersToSend.put(parameter.getString("name"), driver.get("value"));
+                                    break;
+                                }
+                            }
+                        }
+                    }
                 }
             }
         }