Added memory test, improved security sample

samples/quality-assurance/ai-agent/src/main/java/com/example/ai/agent/service/ChatService.java

@@ -4,6 +4,8 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.ai.chat.client.ChatClient;
+import org.springframework.ai.chat.client.advisor.MessageChatMemoryAdvisor;
+import org.springframework.ai.chat.memory.MessageWindowChatMemory;
 import org.springframework.stereotype.Service;
 
 @Service
@@ -33,8 +35,14 @@ public class ChatService {
 
     public ChatService(DateTimeService dateTimeService,
                       ChatClient.Builder chatClientBuilder) {
+
+        var chatMemory = MessageWindowChatMemory.builder()
+                .maxMessages(20)
+                .build();
+
         this.chatClient = chatClientBuilder
                 .defaultSystem(SYSTEM_PROMPT)
+                .defaultAdvisors(MessageChatMemoryAdvisor.builder(chatMemory).build())
                 .defaultTools(dateTimeService)
                 .build();
 

samples/quality-assurance/ai-agent/src/test/java/com/example/ai/agent/service/ChatClientMemoryTest.java

@@ -0,0 +1,31 @@
+package com.example.ai.agent.service;
+
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+@SpringBootTest
+public class ChatClientMemoryTest {
+
+    @Autowired
+    private ChatService chatService;
+
+    @Test
+    public void shouldMemorizeMemoryContext() {
+        // Test if the model knows basic facts
+        String memoryAdvice = "My name is Andrei";
+        chatService.processChat(memoryAdvice);
+
+        String question = "What is my name?";
+        String response = chatService.processChat(question);
+        System.out.println("=== DIRECT MODEL TEST ===");
+        System.out.println("Question: " + question);
+        System.out.println("Response: " + response);
+
+        assertThat(response).isNotNull().isNotEmpty();
+        assertThat(response.toLowerCase()).contains("andrei");
+    }
+}

samples/security/oauth/ai-agent/src/main/java/com/example/ai/agent/SecurityConfiguration.java

@@ -15,10 +15,7 @@ class SecurityConfiguration {
     @Bean
     SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
         return http
-                .authorizeHttpRequests(auth -> auth
-                    .anyRequest().authenticated()
-                )
-                .oauth2Login(Customizer.withDefaults())
+                .authorizeHttpRequests(auth -> auth.anyRequest().permitAll())
                 .oauth2Client(Customizer.withDefaults())
                 .csrf(CsrfConfigurer::disable)
                 .build();

samples/security/oauth/ai-agent/src/main/java/com/example/ai/agent/controller/ChatController.java

@@ -1,6 +1,7 @@
 package com.example.ai.agent.controller;
 
 import com.example.ai.agent.service.ChatService;
+import jakarta.servlet.http.HttpServletRequest;
 import org.springframework.web.bind.annotation.*;
 
 @RestController
@@ -14,40 +15,10 @@ public ChatController(ChatService chatService) {
     }
 
 	@PostMapping("chat")
-    public String chat(@RequestBody ChatRequest request) {
+    public String chat(@RequestBody ChatRequest request, HttpServletRequest httpRequest) {
+        var headers = httpRequest.getHeaderNames();
 		return chatService.processChat(request.prompt());
     }
 
-    @GetMapping("gui")
-    public String chat() {
-        String prompt = "Please give me all available hotels in Paris, Checkin 10.10.2025, checkout 15.10.2025";
-        String chatResponse = chatService.processChat(prompt);
-
-        String currentHotel = """
-					<h2>Available hotels %s</h2>
-					<p>%s</p>
-					<form action="" method="GET">
-					<button type="submit">Clear</button>
-					</form>
-					""".formatted(prompt, chatResponse);
-
-        return """
-				<h1>Demo controller</h1>
-				%s
-
-				<hr>
-
-				<h2>Ask for the weather</h2>
-				<p>In which city would you like to see the weather?</p>
-				<form action="" method="GET">
-				    <input type="text" name="query" value="" placeholder="Paris" />
-				    <button type="submit">Ask the LLM</button>
-				</form>
-
-				<hr>
-				""".formatted(currentHotel);
-    }
-
-
     public record ChatRequest(String prompt) {}
 }

samples/security/oauth/ai-agent/src/main/java/com/example/ai/agent/controller/WebViewController.java

@@ -1,12 +1,15 @@
 package com.example.ai.agent.controller;
 
+import org.springframework.security.oauth2.client.OAuth2AuthorizedClient;
+import org.springframework.security.oauth2.client.annotation.RegisteredOAuth2AuthorizedClient;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.GetMapping;
 
 @Controller
 public class WebViewController {
     @GetMapping("/")
-    public String index() {
+    public String index(@RegisteredOAuth2AuthorizedClient("authserver") OAuth2AuthorizedClient authorizedClient) {
+        authorizedClient.getAccessToken();
         return "chat";
     }
 }

samples/security/oauth/ai-agent/src/main/resources/templates/chat.html

@@ -463,6 +463,7 @@ <h1 class="text-3xl font-bold text-dev-accent">🤖 AI Agent</h1>
                 } catch (error) {
                     console.error('Error:', error);
                     addMessage('Sorry, I encountered an error. Please try again.', 'ai');
+                    throw error
                 }
             });