WIP

models/spring-ai-openai/src/test/java/org/springframework/ai/openai/chat/OpenAiPaymentTransactionIT.java

@@ -16,18 +16,11 @@
 
 package org.springframework.ai.openai.chat;
 
-import java.util.List;
-import java.util.Map;
-import java.util.function.Function;
-import java.util.stream.Collectors;
-
 import org.junit.jupiter.api.condition.EnabledIfEnvironmentVariable;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.ValueSource;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import reactor.core.publisher.Flux;
-
 import org.springframework.ai.chat.client.AdvisedRequest;
 import org.springframework.ai.chat.client.ChatClient;
 import org.springframework.ai.chat.client.RequestResponseAdvisor;
@@ -46,6 +39,12 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Description;
 import org.springframework.core.ParameterizedTypeReference;
+import reactor.core.publisher.Flux;
+
+import java.util.List;
+import java.util.Map;
+import java.util.function.Function;
+import java.util.stream.Collectors;
 
 import static org.assertj.core.api.Assertions.assertThat;
 

spring-ai-core/src/main/java/org/springframework/ai/chat/client/ChatClient.java

@@ -26,7 +26,12 @@
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.function.Consumer;
+import java.util.function.Function;
 
+import org.springframework.ai.chat.client.resolver.BeanNameResolver;
+import org.springframework.ai.chat.client.resolver.SimpleNameResolver;
+import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.context.support.GenericApplicationContext;
 import reactor.core.publisher.Flux;
 
 import org.springframework.ai.chat.messages.Media;
@@ -64,21 +69,27 @@
  */
 public interface ChatClient {
 
-	static ChatClient create(ChatModel chatModel) {
-		return builder(chatModel).build();
+	static ChatClient create(ChatModel chatModel, BeanNameResolver beanNameResolver) {
+		return builder(chatModel, beanNameResolver).build();
 	}
 
+	// QUESTION: Should this constructor be removed in favour of the one requiring the
+	// beanNameResolver?
 	static Builder builder(ChatModel chatModel) {
-		return new Builder(chatModel);
+		return new Builder(chatModel, new SimpleNameResolver());
+	}
+
+	static Builder builder(ChatModel chatModel, BeanNameResolver beanNameResolver) {
+		return new Builder(chatModel, beanNameResolver);
 	}
 
 	ChatClientRequest prompt();
 
 	ChatClientPromptRequest prompt(Prompt prompt);
 
 	/**
-	 * Return a {@link ChatClient.Builder} to create a new {@link ChatClient} whose
-	 * settings are replicated from the default {@link ChatClientRequest} of this client.
+	 * Return a {@link Builder} to create a new {@link ChatClient} whose settings are
+	 * replicated from the default {@link ChatClientRequest} of this client.
 	 */
 	Builder mutate();
 
@@ -263,16 +274,20 @@ class ChatClientRequest {
 
 		private final Map<String, Object> advisorParams = new HashMap<>();
 
+		private final BeanNameResolver beanNameResolver;
+
 		/* copy constructor */
 		ChatClientRequest(ChatClientRequest ccr) {
 			this(ccr.chatModel, ccr.userText, ccr.userParams, ccr.systemText, ccr.systemParams, ccr.functionCallbacks,
-					ccr.messages, ccr.functionNames, ccr.media, ccr.chatOptions, ccr.advisors, ccr.advisorParams);
+					ccr.messages, ccr.functionNames, ccr.media, ccr.chatOptions, ccr.advisors, ccr.advisorParams,
+					ccr.beanNameResolver);
 		}
 
 		public ChatClientRequest(ChatModel chatModel, String userText, Map<String, Object> userParams,
 				String systemText, Map<String, Object> systemParams, List<FunctionCallback> functionCallbacks,
 				List<Message> messages, List<String> functionNames, List<Media> media, ChatOptions chatOptions,
-				List<RequestResponseAdvisor> advisors, Map<String, Object> advisorParams) {
+				List<RequestResponseAdvisor> advisors, Map<String, Object> advisorParams,
+				BeanNameResolver beanNameResolver) {
 
 			this.chatModel = chatModel;
 			this.chatOptions = chatOptions != null ? chatOptions : chatModel.getDefaultOptions();
@@ -288,14 +303,15 @@ public ChatClientRequest(ChatModel chatModel, String userText, Map<String, Objec
 			this.media.addAll(media);
 			this.advisors.addAll(advisors);
 			this.advisorParams.putAll(advisorParams);
+			this.beanNameResolver = beanNameResolver;
 		}
 
 		/**
 		 * Return a {@code ChatClient.Builder} to create a new {@code ChatClient} whose
 		 * settings are replicated from this {@code ChatClientRequest}.
 		 */
 		public Builder mutate() {
-			Builder builder = ChatClient.builder(chatModel)
+			Builder builder = ChatClient.builder(chatModel, beanNameResolver)
 				.defaultSystem(s -> s.text(this.systemText).params(this.systemParams))
 				.defaultUser(u -> u.text(this.userText)
 					.params(this.userParams)
@@ -365,6 +381,11 @@ public <I, O> ChatClientRequest function(String name, String description,
 			return this;
 		}
 
+		public <T> ChatClientRequest functionBean(Class<T> functionBeanType) {
+			this.functionNames.add(beanNameResolver.resolveName(functionBeanType));
+			return this;
+		}
+
 		public ChatClientRequest functions(String... functionBeanNames) {
 			Assert.notNull(functionBeanNames, "the functionBeanNames must be non-null");
 			this.functionNames.addAll(List.of(functionBeanNames));
@@ -528,7 +549,7 @@ private static ChatClientRequest adviseOnRequest(ChatClientRequest inputRequest,
 						adviseRequest.userParams(), adviseRequest.systemText(), adviseRequest.systemParams(),
 						adviseRequest.functionCallbacks(), adviseRequest.messages(), adviseRequest.functionNames(),
 						adviseRequest.media(), adviseRequest.chatOptions(), adviseRequest.advisors(),
-						adviseRequest.advisorParams());
+						adviseRequest.advisorParams(), inputRequest.beanNameResolver);
 			}
 
 			return advisedRequest;
@@ -735,11 +756,11 @@ class Builder {
 
 		private final ChatModel chatModel;
 
-		Builder(ChatModel chatModel) {
+		Builder(ChatModel chatModel, BeanNameResolver beanNameResolver) {
 			Assert.notNull(chatModel, "the " + ChatModel.class.getName() + " must be non-null");
 			this.chatModel = chatModel;
 			this.defaultRequest = new ChatClientRequest(chatModel, "", Map.of(), "", Map.of(), List.of(), List.of(),
-					List.of(), List.of(), null, List.of(), Map.of());
+					List.of(), List.of(), null, List.of(), Map.of(), beanNameResolver);
 		}
 
 		public Builder defaultAdvisors(RequestResponseAdvisor... advisor) {

spring-ai-core/src/main/java/org/springframework/ai/chat/client/resolver/ApplicationContextBeanNameResolver.java

@@ -0,0 +1,30 @@
+package org.springframework.ai.chat.client.resolver;
+
+import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.context.support.GenericApplicationContext;
+import org.springframework.util.Assert;
+
+public class ApplicationContextBeanNameResolver implements BeanNameResolver {
+
+	private final GenericApplicationContext context;
+
+	public ApplicationContextBeanNameResolver(GenericApplicationContext context) {
+		this.context = context;
+	}
+
+	@Override
+	public <T> String resolveName(Class<T> beanType) {
+		String[] namesForType = context.getBeanNamesForType(beanType);
+		Assert.isTrue(namesForType.length == 1, "A bean must have a unique definiton");
+
+		/*
+		 * The following snippet could be used in other places to resolve the description
+		 * from a function registered as a bean BeanDefinition beanDefinition =
+		 * context.getBeanDefinition(namesForType[0]); String description =
+		 * beanDefinition.getDescription();
+		 */
+
+		return namesForType[0];
+	}
+
+}

spring-ai-core/src/main/java/org/springframework/ai/chat/client/resolver/BeanNameResolver.java

@@ -0,0 +1,7 @@
+package org.springframework.ai.chat.client.resolver;
+
+public interface BeanNameResolver {
+
+	<T> String resolveName(Class<T> beanType);
+
+}

spring-ai-core/src/main/java/org/springframework/ai/chat/client/resolver/SimpleNameResolver.java

@@ -0,0 +1,10 @@
+package org.springframework.ai.chat.client.resolver;
+
+public class SimpleNameResolver implements BeanNameResolver {
+
+	@Override
+	public <T> String resolveName(Class<T> beanType) {
+		return beanType.getSimpleName().substring(0, 1).toLowerCase() + beanType.getSimpleName().substring(1);
+	}
+
+}

spring-ai-spring-boot-autoconfigure/src/main/java/org/springframework/ai/autoconfigure/chat/client/ChatClientAutoConfiguration.java

@@ -17,6 +17,7 @@
 package org.springframework.ai.autoconfigure.chat.client;
 
 import org.springframework.ai.chat.client.ChatClient;
+import org.springframework.ai.chat.client.resolver.ApplicationContextBeanNameResolver;
 import org.springframework.ai.chat.model.ChatModel;
 import org.springframework.ai.chat.client.ChatClientCustomizer;
 import org.springframework.beans.factory.ObjectProvider;
@@ -28,6 +29,7 @@
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Scope;
+import org.springframework.context.support.GenericApplicationContext;
 
 /**
  * {@link EnableAutoConfiguration Auto-configuration} for {@link ChatClient}.
@@ -60,8 +62,9 @@ ChatClientBuilderConfigurer chatClientBuilderConfigurer(ObjectProvider<ChatClien
 	@Bean
 	@Scope("prototype")
 	@ConditionalOnMissingBean
-	ChatClient.Builder chatClientBuilder(ChatClientBuilderConfigurer chatClientBuilderConfigurer, ChatModel chatModel) {
-		ChatClient.Builder builder = ChatClient.builder(chatModel);
+	ChatClient.Builder chatClientBuilder(ChatClientBuilderConfigurer chatClientBuilderConfigurer, ChatModel chatModel,
+			GenericApplicationContext context) {
+		ChatClient.Builder builder = ChatClient.builder(chatModel, new ApplicationContextBeanNameResolver(context));
 		return chatClientBuilderConfigurer.configure(builder);
 	}