From f4f6dddb118a644b5e627eedea97c6aa341d8f96 Mon Sep 17 00:00:00 2001
From: Brian Lowe <brian@ontocale.com>
Date: Wed, 16 Jun 2021 21:43:30 +0300
Subject: [PATCH] Retrieve locales used in label statements instead of only
 selectable locales

---
 .../ManageLabelsForPersonGenerator.java       | 50 ++++++++++---------
 1 file changed, 27 insertions(+), 23 deletions(-)

diff --git a/api/src/main/java/edu/cornell/mannlib/vitro/webapp/edit/n3editing/configuration/generators/ManageLabelsForPersonGenerator.java b/api/src/main/java/edu/cornell/mannlib/vitro/webapp/edit/n3editing/configuration/generators/ManageLabelsForPersonGenerator.java
index 41da2d39..b2f0923e 100644
--- a/api/src/main/java/edu/cornell/mannlib/vitro/webapp/edit/n3editing/configuration/generators/ManageLabelsForPersonGenerator.java
+++ b/api/src/main/java/edu/cornell/mannlib/vitro/webapp/edit/n3editing/configuration/generators/ManageLabelsForPersonGenerator.java
@@ -15,6 +15,7 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
+import java.util.Set;
 
 import javax.servlet.http.HttpSession;
 
@@ -41,6 +42,7 @@ import edu.cornell.mannlib.vitro.webapp.edit.n3editing.VTwo.fields.FieldVTwo;
 import edu.cornell.mannlib.vitro.webapp.edit.n3editing.configuration.preprocessors.FoafNameToRdfsLabelPreprocessor;
 import edu.cornell.mannlib.vitro.webapp.edit.n3editing.configuration.preprocessors.ManageLabelsForPersonPreprocessor;
 import edu.cornell.mannlib.vitro.webapp.i18n.selection.SelectedLocale;
+import edu.cornell.mannlib.vitro.webapp.rdfservice.filter.LanguageFilteringUtils;
 import edu.cornell.mannlib.vitro.webapp.web.templatemodels.individual.DataPropertyStatementTemplateModel;
 
 /**
@@ -246,12 +248,12 @@ public class ManageLabelsForPersonGenerator extends BaseEditConfigurationGenerat
 
 	private void addFormSpecificData(EditConfigurationVTwo config,
 			VitroRequest vreq) {
+	    ArrayList<Literal> existingLabels = this.getExistingLabels(config.getSubjectUri(), vreq);
 		//Get all language codes/labels in the system, and this list is sorted by language name
-        List<HashMap<String, String>> locales = this.getLocales(vreq);
+        List<HashMap<String, String>> locales = this.getLocales(vreq, existingLabels);
         //Get code to label hashmap - we use this to get the language name for the language code returned in the rdf literal
         HashMap<String, String> localeCodeToNameMap = this.getFullCodeToLanguageNameMap(locales);
 		//the labels already added by the user
-		ArrayList<Literal> existingLabels = this.getExistingLabels(config.getSubjectUri(), vreq);
 		int numberExistingLabels = existingLabels.size();
 		//existing labels keyed by language name and each of the list of labels is sorted by language name
 		HashMap<String, List<LabelInformation>> existingLabelsByLanguageName = this.getLabelsSortedByLanguageName(existingLabels, localeCodeToNameMap, config, vreq);
@@ -466,30 +468,32 @@ public class ManageLabelsForPersonGenerator extends BaseEditConfigurationGenerat
     	return template;
     }
 
+    //get locales present in list of literals
+    public List<HashMap<String, String>> getLocales(VitroRequest vreq, 
+            List<Literal> existingLiterals) {
+        Set<Locale> locales = new HashSet<Locale>();
+        for(Literal literal : existingLiterals) {
+            String language = literal.getLanguage();
+            if(!StringUtils.isEmpty(language)) {
+                locales.add(LanguageFilteringUtils.languageToLocale(language));
+            }
+        }
+        if (locales.isEmpty()) {
+            return Collections.emptyList();
+        }
+        List<HashMap<String, String>> list = new ArrayList<HashMap<String, String>>();
+        Locale currentLocale = SelectedLocale.getCurrentLocale(vreq);
+        for (Locale locale : locales) {
+            try {
+                list.add(buildLocaleMap(locale, currentLocale));
+            } catch (FileNotFoundException e) {
+                log.warn("Can't show locale '" + locale + "': " + e);
+            }
+        }
 
-
-    //get locales
-    public List<HashMap<String, String>> getLocales(VitroRequest vreq) {
-    	List<Locale> selectables = SelectedLocale.getSelectableLocales(vreq);
-		if (selectables.isEmpty()) {
-			return Collections.emptyList();
-		}
-		List<HashMap<String, String>> list = new ArrayList<HashMap<String, String>>();
-		Locale currentLocale = SelectedLocale.getCurrentLocale(vreq);
-		for (Locale locale : selectables) {
-			try {
-				list.add(buildLocaleMap(locale, currentLocale));
-			} catch (FileNotFoundException e) {
-				log.warn("Can't show the Locale selector for '" + locale
-						+ "': " + e);
-			}
-		}
-
-		return list;
+        return list;
     }
 
-
-
     public HashMap<String, String> getFullCodeToLanguageNameMap(List<HashMap<String, String>> localesList) {
     	HashMap<String, String> codeToLanguageMap = new HashMap<String, String>();
     	for(Map<String, String> locale: localesList) {