From 7431ec678b93decb21cc480c1a0030542ad74292 Mon Sep 17 00:00:00 2001
From: Kohei Suzuki <koheisuzuki@me.com>
Date: Tue, 7 Nov 2023 11:35:11 +0100
Subject: [PATCH] Add netty dependency in pom.xml and number of retry for
 converter in backend

---
 backend/pom.xml                               |  5 +++++
 .../backend/converter/ConvertService.java     | 21 ++++++++++++-------
 2 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/backend/pom.xml b/backend/pom.xml
index 41095a0..bb205a2 100644
--- a/backend/pom.xml
+++ b/backend/pom.xml
@@ -88,6 +88,11 @@
             <artifactId>icu4j</artifactId>
             <version>73.2</version>
         </dependency>
+        <dependency>
+            <groupId>io.netty</groupId>
+            <artifactId>netty-resolver-dns</artifactId>
+            <version>4.1.100.Final</version>
+        </dependency>
     </dependencies>
     <build>
         <finalName>kotokoapp</finalName>
diff --git a/backend/src/main/java/de/neuefische/koheis/backend/converter/ConvertService.java b/backend/src/main/java/de/neuefische/koheis/backend/converter/ConvertService.java
index 86bd877..4dc61fa 100644
--- a/backend/src/main/java/de/neuefische/koheis/backend/converter/ConvertService.java
+++ b/backend/src/main/java/de/neuefische/koheis/backend/converter/ConvertService.java
@@ -32,6 +32,7 @@ public String convertKanjiToKana(GooRequest gooRequest) {
                 .bodyValue(gooRequest)
                 .retrieve()
                 .toEntity(GooResponse.class)
+                .retry(3)
                 .block();
 
         assert responseEntity != null;
@@ -51,15 +52,19 @@ public String convertKanaToAlphabet(String kana) {
 
     public Conversion convertTranslationToConversion(Translation translation) {
         String translated = translation.getJapanese();
-        if (translated.matches("^[\\u4E00-\\u9FFF]+$")) {
-            String kana = convertKanjiToKana(getGooRequest(translated, "hiragana"));
-            String alphabet = convertKanaToAlphabet(kana);
-            return new Conversion(translated, kana, alphabet);
-        } else if ((translated.matches("^[\\u3040-\\u309F]+$")) || (translation.getJapanese().matches("^[\\u30A0-\\u30FF]+$"))) {
-            String alphabet = convertKanaToAlphabet(translated);
-            return new Conversion("", translated, alphabet);
+        if (translated != null) {
+            if (translated.matches("^[\\u4E00-\\u9FFF]+$")) {
+                String kana = convertKanjiToKana(getGooRequest(translated, "hiragana"));
+                String alphabet = convertKanaToAlphabet(kana);
+                return new Conversion(translated, kana, alphabet);
+            } else if ((translated.matches("^[\\u3040-\\u309F]+$")) || (translation.getJapanese().matches("^[\\u30A0-\\u30FF]+$"))) {
+                String alphabet = convertKanaToAlphabet(translated);
+                return new Conversion("", translated, alphabet);
+            } else {
+                return new Conversion("", "", "");
+            }
         } else {
-            return new Conversion("", "", "");
+            return new Conversion("could not be translated", "", "");
         }
     }