feature: add jvm sample

Author: osugikoji

sample/jvm/src/main/java/co/yml/ychat/jvm/controller/YChatController.java

@@ -7,9 +7,11 @@
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.multipart.MultipartFile;
 
 @RestController
 @RequestMapping("api/ychat")
@@ -64,6 +66,14 @@ public ResponseEntity<AIModel> model(@PathVariable String id) throws Exception {
         return ResponseEntity.ok(result);
     }
 
+    @PostMapping("audio/transcriptions")
+    public ResponseEntity<String> audioTranscriptions(
+            @RequestParam("file") MultipartFile multipartFile
+    ) throws Exception {
+        String result = YChatService.getAudioTranscription(multipartFile);
+        return ResponseEntity.ok(result);
+    }
+
     private static class Defaults {
         static final String COMPLETION_INPUT = "Say this is a test.";
         static final String CHAT_COMPLETION_INPUT = "Tell me one strength exercise";

sample/jvm/src/main/java/co/yml/ychat/jvm/services/YChatService.java

@@ -4,10 +4,12 @@
 import co.yml.ychat.domain.model.AIModel;
 import co.yml.ychat.domain.model.ChatMessage;
 import java.util.List;
+import java.util.Optional;
 import java.util.concurrent.CompletableFuture;
 import org.jetbrains.annotations.NotNull;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
+import org.springframework.web.multipart.MultipartFile;
 
 @Service
 public class YChatService {
@@ -65,6 +67,14 @@ public AIModel getModel(String id) throws Exception {
         return future.get();
     }
 
+    public String getAudioTranscription(MultipartFile multipartFile) throws Exception {
+        final CompletableFuture<String> future = new CompletableFuture<>();
+        String filename = Optional.ofNullable(multipartFile.getOriginalFilename()).orElse("");
+        byte[] bytes = multipartFile.getBytes();
+        ychat.audioTranscriptions().execute(filename, bytes, new CompletionCallbackResult<>(future));
+        return future.get();
+    }
+
     private static class CompletionCallbackResult<T> implements YChat.Callback<T> {
 
         private final CompletableFuture<T> future;