CLDR-17461 Improve visibility of forum posts in vetting view

-New icons in the Comparison (English) column: 💬 followed by question mark or period

-💬? means: This item has forum posts, some of which are open

-💬. means: This item has forum posts, all of which are closed

-New class SurveyForum.PathForumStatus

-New method appendForumStatus in cldrTable.mjs

-Fix a few Java compiler warnings

tools/cldr-apps/js/src/esm/cldrErrorSubtypes.mjs

@@ -147,7 +147,7 @@ function reloadMapHandler(json) {
   }
   el.innerHTML = html;
   if (json.err) {
-    const b = cldrDom.createLinkToFn('special_error_subtypes', load, 'button');
+    const b = cldrDom.createLinkToFn("special_error_subtypes", load, "button");
     el.appendChild(b);
   }
 }

tools/cldr-apps/js/src/esm/cldrTable.mjs

@@ -763,7 +763,7 @@ function updateRowEnglishComparisonCell(tr, theRow, cell) {
   }
   const TRANS_HINT_ID = "en"; // expected to match SurveyMain.TRANS_HINT_ID
   cldrSurvey.setLang(cell, TRANS_HINT_ID);
-  if (theRow.displayExample || trHint) {
+  if (theRow.displayExample || trHint || theRow.forumStatus.hasPosts) {
     const infos = document.createElement("div");
     infos.className = "infos-code";
     if (trHint) {
@@ -772,6 +772,9 @@ function updateRowEnglishComparisonCell(tr, theRow, cell) {
     if (theRow.displayExample) {
       appendExampleIcon(infos, theRow.displayExample, TRANS_HINT_ID);
     }
+    if (theRow.forumStatus.hasPosts) {
+      appendForumStatus(infos, theRow.forumStatus, TRANS_HINT_ID);
+    }
     cell.appendChild(infos);
   }
   cldrInfo.listen(null, tr, cell, null);
@@ -1114,6 +1117,19 @@ function appendTranslationHintIcon(parent, text, loc) {
   return el;
 }
 
+function appendForumStatus(parent, forumStatus, loc) {
+  const el = document.createElement("span");
+  el.textContent = "💬" + (forumStatus.hasOpenPosts ? "?" : ".");
+  el.title =
+    cldrText.get("forum_path_has_posts") +
+    (forumStatus.hasOpenPosts
+      ? cldrText.get("forum_path_has_open_posts")
+      : cldrText.get("forum_path_has_only_closed_posts"));
+  cldrSurvey.setLang(el, loc);
+  parent.appendChild(el);
+  return el;
+}
+
 function appendExampleIcon(parent, text, loc) {
   const el = appendExample(parent, text, loc);
   const img = document.createElement("img");

tools/cldr-apps/js/src/esm/cldrText.mjs

@@ -360,6 +360,10 @@ const strings = {
   forum_remember_vote:
     "⚠️ Please remember to vote – submitting a forum post does NOT cause any actual vote to be made.",
 
+  forum_path_has_posts: "This item has forum posts, ",
+  forum_path_has_open_posts: "some of which are open",
+  forum_path_has_only_closed_posts: "all of which are closed",
+
   generic_nolocale: "No locale chosen.",
   defaultContent_msg:
     "This locale, ${name} is the <i><a target='CLDR-ST-DOCS' href='https://cldr.unicode.org/translation/translation-guide-general/default-content'>default content locale</a></i> for <b><a class='notselected' href='#/${dcParent}'>${dcParentName}</a></b>, and thus editing or viewing is disabled.",

tools/cldr-apps/src/main/java/org/unicode/cldr/web/SurveyForum.java

@@ -90,7 +90,7 @@ private static String HTMLUnsafe(String s) {
 
     private synchronized int getForumNumber(CLDRLocale locale) {
         String forum = localeToForum(locale);
-        if (forum.length() == 0 || LocaleNames.ROOT.equals(forum)) {
+        if (forum.isEmpty() || LocaleNames.ROOT.equals(forum)) {
             return NO_FORUM; // all forums
         }
         // make sure it is a valid src!
@@ -198,7 +198,7 @@ private void gatherUsersInterestedInLocale(
                     UserRegistry.User u = sm.reg.getInfo(uid);
                     if (u != null
                             && u.email != null
-                            && u.email.length() > 0
+                            && !u.email.isEmpty()
                             && !(UserRegistry.userIsLocked(u)
                                     || UserRegistry.userIsExactlyAnonymous(u))) {
                         if (UserRegistry.userIsVetter(u)) {
@@ -1559,7 +1559,7 @@ public void setSendEmail(boolean sendEmail) {
     }
 
     /** Status values associated with forum posts and threads */
-    enum PostType {
+    public enum PostType {
         CLOSE(0, "Close"),
         DISCUSS(1, "Discuss"),
         REQUEST(2, "Request"),
@@ -1628,4 +1628,52 @@ public static PostType fromName(String name, PostType defaultStatus) {
             return defaultStatus;
         }
     }
+
+    public static class PathForumStatus {
+        public boolean hasPosts, hasOpenPosts;
+
+        public PathForumStatus(CLDRLocale locale, String xpath) {
+            Connection conn = null;
+            PreparedStatement ps = null;
+            final String tableName = DBUtils.Table.FORUM_POSTS.toString();
+            final String localeId = locale.getBaseName();
+            final int xpathId = CookieSession.sm.xpt.getByXpath(xpath);
+            try {
+                conn = DBUtils.getInstance().getAConnection();
+                if (conn == null) {
+                    return;
+                }
+                // Expect most paths have NO posts, so check first for ANY posts (open or not).
+                // "LIMIT 1" may improve performance; no need to distinguish 1 from larger numbers
+                ps =
+                        DBUtils.prepareForwardReadOnly(
+                                conn,
+                                "SELECT ID FROM " + tableName + " WHERE loc=? and xpath=? LIMIT 1");
+                ps.setString(1, localeId);
+                ps.setInt(2, xpathId);
+                if (DBUtils.sqlCount(ps) <= 0) { // sqlCount returns -1 (not 0) for none!
+                    this.hasPosts = this.hasOpenPosts = false;
+                    return;
+                }
+                this.hasPosts = true;
+                // Check for OPEN posts
+                ps =
+                        DBUtils.prepareForwardReadOnly(
+                                conn,
+                                "SELECT ID FROM "
+                                        + tableName
+                                        + " WHERE loc=? and xpath=? AND is_open=1 LIMIT 1");
+                ps.setString(1, localeId);
+                ps.setInt(2, xpathId);
+                this.hasOpenPosts = DBUtils.sqlCount(ps) > 0;
+            } catch (SQLException e) {
+                SurveyLog.logException(
+                        logger,
+                        e,
+                        "PathForumStatus for " + tableName + " " + locale + ":" + xpathId);
+            } finally {
+                DBUtils.close(ps, conn);
+            }
+        }
+    }
 }

tools/cldr-apps/src/main/java/org/unicode/cldr/web/api/VoteAPI.java

@@ -27,6 +27,7 @@
 import org.unicode.cldr.web.Dashboard;
 import org.unicode.cldr.web.DataPage;
 import org.unicode.cldr.web.SubtypeToURLMap;
+import org.unicode.cldr.web.SurveyForum;
 import org.unicode.cldr.web.api.VoteAPIHelper.VoteEntry;
 
 @Path("/voting")
@@ -181,6 +182,7 @@ public static final class VotingResults<T> {
             public String rawEnglish;
             public Map<String, String> extraAttributes;
             public boolean flagged;
+            public SurveyForum.PathForumStatus forumStatus;
             public boolean hasVoted;
             public String helpHtml;
             public String inheritedLocale;

tools/cldr-apps/src/main/java/org/unicode/cldr/web/api/VoteAPIHelper.java

@@ -243,6 +243,7 @@ private static RowResponse.Row calculateRow(final DataRow r, boolean redacted) {
         row.rawEnglish = r.getRawEnglish();
         row.extraAttributes = r.getNonDistinguishingAttributes();
         row.flagged = r.isFlagged();
+        row.forumStatus = new SurveyForum.PathForumStatus(r.getLocale(), xpath);
         row.hasVoted = r.userHasVoted();
         row.helpHtml = r.getHelpHTML();
         row.inheritedLocale = r.getInheritedLocaleName();