juick-www: fix parsing tags with duplicates

1 files changed, 11 insertions, 9 deletions

diff --git a/juick-www/src/main/java/com/juick/www/WebApp.java b/juick-www/src/main/java/com/juick/www/WebApp.java
index 85ae64d4..2f73229e 100644
--- a/juick-www/src/main/java/com/juick/www/WebApp.java
+++ b/juick-www/src/main/java/com/juick/www/WebApp.java
@@ -40,8 +40,10 @@ import ru.sape.Sape;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 import java.util.Objects;
+import java.util.stream.Stream;
 
 /**
  *
@@ -133,18 +135,18 @@ public class WebApp implements AutoCloseable {
 
     public List<Tag> parseTags(String tagsStr) {
         List<Tag> tags = new ArrayList<>();
-        String tagsArr[];
         if (tagsStr != null && !tagsStr.isEmpty()) {
-            tagsArr = tagsStr.split("[ \\,]");
-            for (int i = 0; i < tagsArr.length; i++) {
-                if (tagsArr[i].startsWith("*")) {
-                    tagsArr[i] = tagsArr[i].substring(1);
+            Stream<String> tagsList = Arrays.stream(tagsStr.split("[ \\,]"))
+                    .distinct().map( t -> {
+                if (t.startsWith("*")) {
+                    t = t.substring(1);
                 }
-                if (tagsArr[i].length() > 64) {
-                    tagsArr[i] = tagsArr[i].substring(0, 64);
+                if (t.length() > 64) {
+                    t = t.substring(0, 64);
                 }
-            }
-            tags = tagService.getTags(tagsArr, true);
+                return t;
+            });
+            tags = tagService.getTags(tagsList.toArray(String[]::new), true);
             while (tags.size() > 5) {
                 tags.remove(5);
             }