polish code

.vscode/launch.json

@@ -76,6 +76,16 @@
             "projectName": "rag-springai-openai-llm",
             "args": "--spring.profiles.active=local",
             "envFile": "${workspaceFolder}/.env"
+        },
+        {
+            "type": "java",
+            "name": "Spring Boot-LLMRagWithSpringBoot<rag-langchain4j-AllMiniLmL6V2-llm>",
+            "request": "launch",
+            "cwd": "${workspaceFolder}",
+            "mainClass": "com.learning.ai.LLMRagWithSpringBoot",
+            "projectName": "rag-langchain4j-AllMiniLmL6V2-llm",
+            "args": "",
+            "envFile": "${workspaceFolder}/.env"
         }
     ]
 }

rag/rag-langchain4j-AllMiniLmL6V2-llm/docker/docker-compose.yml

@@ -1,4 +1,3 @@
-version: '3.7'
 services:
     postgresqldb:
         container_name: postgresqldb

rag/rag-langchain4j-AllMiniLmL6V2-llm/src/main/java/com/learning/ai/LLMRagWithSpringBoot.java

@@ -4,7 +4,7 @@
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
 @SpringBootApplication
-public class LLMRagWithSpringBoot {
+class LLMRagWithSpringBoot {
 
     public static void main(String[] args) {
         SpringApplication.run(LLMRagWithSpringBoot.class, args);

rag/rag-langchain4j-AllMiniLmL6V2-llm/src/main/java/com/learning/ai/config/AIConfig.java

@@ -29,7 +29,7 @@
 import org.springframework.core.io.ResourceLoader;
 
 @Configuration(proxyBeanMethods = false)
-public class AIConfig {
+class AIConfig {
 
     @Bean
     AICustomerSupportAgent customerSupportAgent(

rag/rag-langchain4j-AllMiniLmL6V2-llm/src/main/java/com/learning/ai/config/ChatTools.java

@@ -7,7 +7,7 @@
 
 @Component
 @Slf4j
-public class ChatTools {
+class ChatTools {
 
     /**
      * This tool is available to {@link AICustomerSupportAgent}

rag/rag-langchain4j-AllMiniLmL6V2-llm/src/main/java/com/learning/ai/config/SwaggerConfig.java

@@ -9,4 +9,4 @@
 @OpenAPIDefinition(
         info = @Info(title = "rag-langchain4j-AllMiniLmL6V2-llm", version = "v1.0.0"),
         servers = @Server(url = "/"))
-public class SwaggerConfig {}
+class SwaggerConfig {}

rag/rag-langchain4j-AllMiniLmL6V2-llm/src/main/java/com/learning/ai/controller/CustomerSupportController.java

@@ -13,7 +13,7 @@
 @RestController
 @RequestMapping("/api/ai")
 @Validated
-public class CustomerSupportController {
+class CustomerSupportController {
 
     private final CustomerSupportService customerSupportService;
 
@@ -22,7 +22,7 @@ public CustomerSupportController(CustomerSupportService customerSupportService)
     }
 
     @PostMapping("/chat")
-    public AICustomerSupportResponse customerSupportChat(@RequestBody @Valid AIChatRequest aiChatRequest) {
+    AICustomerSupportResponse customerSupportChat(@RequestBody @Valid AIChatRequest aiChatRequest) {
         return customerSupportService.chat(aiChatRequest.question());
     }
 }

rag/rag-langchain4j-AllMiniLmL6V2-llm/src/main/java/com/learning/ai/service/CustomerSupportService.java

@@ -34,7 +34,7 @@ public AICustomerSupportResponse chat(String question) {
                 .maxResults(1)
                 .build();
         EmbeddingSearchResult<TextSegment> relevant = embeddingStore.search(embeddingSearchRequest);
-        EmbeddingMatch<TextSegment> embeddingMatch = relevant.matches().get(0);
+        EmbeddingMatch<TextSegment> embeddingMatch = relevant.matches().getFirst();
 
         String embeddedText = embeddingMatch.embedded().text();
         return aiCustomerSupportAgent.chat(question, embeddedText);