fix #1193 ModerationModel is not auto configured (#52)

Fix issue [langchain4j/langchain4j#1193](langchain4j/langchain4j#1193) Added ModerationModel support to `AiService`,`AiServiceFactory` and `AiServiceAutoConfig`
langchain4j · Nov 11, 2024 · 017b205 · 017b205
1 parent 1ac0350
commit 017b205
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diff --git a/langchain4j-spring-boot-starter/src/main/java/dev/langchain4j/service/spring/AiService.java b/langchain4j-spring-boot-starter/src/main/java/dev/langchain4j/service/spring/AiService.java
@@ -5,6 +5,7 @@
 import dev.langchain4j.memory.chat.ChatMemoryProvider;
 import dev.langchain4j.model.chat.ChatLanguageModel;
 import dev.langchain4j.model.chat.StreamingChatLanguageModel;
+import dev.langchain4j.model.moderation.ModerationModel;
 import dev.langchain4j.rag.RetrievalAugmentor;
 import dev.langchain4j.rag.content.retriever.ContentRetriever;
 import dev.langchain4j.service.AiServices;
@@ -91,9 +92,15 @@
      */
     String retrievalAugmentor() default "";
 
+    /**
+     * When the {@link #wiringMode()} is set to {@link AiServiceWiringMode#EXPLICIT},
+     * this attribute specifies the name of a {@link ModerationModel} bean that should be used by this AI Service.
+     */
+    String moderationModel() default "";
+
     /**
      * When the {@link #wiringMode()} is set to {@link AiServiceWiringMode#EXPLICIT},
      * this attribute specifies the names of beans containing methods annotated with {@link Tool} that should be used by this AI Service.
      */
     String[] tools() default {};
-}
+}
diff --git a/...4j-spring-boot-starter/src/main/java/dev/langchain4j/service/spring/AiServiceFactory.java b/...4j-spring-boot-starter/src/main/java/dev/langchain4j/service/spring/AiServiceFactory.java
@@ -4,6 +4,7 @@
 import dev.langchain4j.memory.chat.ChatMemoryProvider;
 import dev.langchain4j.model.chat.ChatLanguageModel;
 import dev.langchain4j.model.chat.StreamingChatLanguageModel;
+import dev.langchain4j.model.moderation.ModerationModel;
 import dev.langchain4j.rag.RetrievalAugmentor;
 import dev.langchain4j.rag.content.retriever.ContentRetriever;
 import dev.langchain4j.service.AiServices;
@@ -22,6 +23,7 @@ class AiServiceFactory implements FactoryBean<Object> {
     private ChatMemoryProvider chatMemoryProvider;
     private ContentRetriever contentRetriever;
     private RetrievalAugmentor retrievalAugmentor;
+    private ModerationModel moderationModel;
     private List<Object> tools;
 
     public AiServiceFactory(Class<Object> aiServiceClass) {
@@ -52,6 +54,10 @@ public void setRetrievalAugmentor(RetrievalAugmentor retrievalAugmentor) {
         this.retrievalAugmentor = retrievalAugmentor;
     }
 
+    public void setModerationModel(ModerationModel moderationModel) {
+        this.moderationModel = moderationModel;
+    }
+
     public void setTools(List<Object> tools) {
         this.tools = tools;
     }
@@ -83,6 +89,10 @@ public Object getObject() {
             builder = builder.contentRetriever(contentRetriever);
         }
 
+        if (moderationModel != null) {
+            builder = builder.moderationModel(moderationModel);
+        }
+
         if (!isNullOrEmpty(tools)) {
             builder = builder.tools(tools);
         }

diff --git a/...pring-boot-starter/src/main/java/dev/langchain4j/service/spring/AiServicesAutoConfig.java b/...pring-boot-starter/src/main/java/dev/langchain4j/service/spring/AiServicesAutoConfig.java
@@ -6,6 +6,7 @@
 import dev.langchain4j.memory.chat.ChatMemoryProvider;
 import dev.langchain4j.model.chat.ChatLanguageModel;
 import dev.langchain4j.model.chat.StreamingChatLanguageModel;
+import dev.langchain4j.model.moderation.ModerationModel;
 import dev.langchain4j.rag.RetrievalAugmentor;
 import dev.langchain4j.rag.content.retriever.ContentRetriever;
 import org.springframework.beans.MutablePropertyValues;
@@ -43,6 +44,7 @@ BeanFactoryPostProcessor aiServicesRegisteringBeanFactoryPostProcessor() {
             String[] chatMemoryProviders = beanFactory.getBeanNamesForType(ChatMemoryProvider.class);
             String[] contentRetrievers = beanFactory.getBeanNamesForType(ContentRetriever.class);
             String[] retrievalAugmentors = beanFactory.getBeanNamesForType(RetrievalAugmentor.class);
+            String[] moderationModels = beanFactory.getBeanNamesForType(ModerationModel.class);
 
             Set<String> tools = new HashSet<>();
             for (String beanName : beanFactory.getBeanDefinitionNames()) {
@@ -129,6 +131,16 @@ BeanFactoryPostProcessor aiServicesRegisteringBeanFactoryPostProcessor() {
                         propertyValues
                 );
 
+                addBeanReference(
+                        ModerationModel.class,
+                        aiServiceAnnotation,
+                        aiServiceAnnotation.moderationModel(),
+                        moderationModels,
+                        "moderationModel",
+                        "moderationModel",
+                        propertyValues
+                );
+
                 if (aiServiceAnnotation.wiringMode() == EXPLICIT) {
                     propertyValues.add("tools", toManagedList(asList(aiServiceAnnotation.tools())));
                 } else if (aiServiceAnnotation.wiringMode() == AUTOMATIC) {

diff --git a/...ain4j/service/spring/mode/automatic/withModerationModel/AiServiceWithModerationModel.java b/...ain4j/service/spring/mode/automatic/withModerationModel/AiServiceWithModerationModel.java
@@ -0,0 +1,12 @@
+package dev.langchain4j.service.spring.mode.automatic.withModerationModel;
+
+import dev.langchain4j.service.Moderate;
+import dev.langchain4j.service.spring.AiService;
+
+@AiService
+interface AiServiceWithModerationModel {
+
+    @Moderate
+    String chat(String userMessage);
+
+}
diff --git a/...ce/spring/mode/automatic/withModerationModel/AiServiceWithModerationModelApplication.java b/...ce/spring/mode/automatic/withModerationModel/AiServiceWithModerationModelApplication.java
@@ -0,0 +1,34 @@
+package dev.langchain4j.service.spring.mode.automatic.withModerationModel;
+
+import dev.langchain4j.data.message.ChatMessage;
+import dev.langchain4j.model.moderation.Moderation;
+import dev.langchain4j.model.moderation.ModerationModel;
+import dev.langchain4j.model.output.Response;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+
+import java.util.List;
+
+@SpringBootApplication
+class AiServiceWithModerationModelApplication {
+
+    @Bean
+    ModerationModel moderationModel() {
+        return new ModerationModel() {
+            @Override
+            public Response<Moderation> moderate(String s) {
+                return Response.from(Moderation.flagged("Flagged"));
+            }
+
+            @Override
+            public Response<Moderation> moderate(List<ChatMessage> list) {
+                return Response.from(Moderation.flagged("Flagged"));
+            }
+        };
+    }
+
+    public static void main(String[] args) {
+        SpringApplication.run(AiServiceWithModerationModelApplication.class, args);
+    }
+}
diff --git a/...n4j/service/spring/mode/automatic/withModerationModel/AiServiceWithModerationModelIT.java b/...n4j/service/spring/mode/automatic/withModerationModel/AiServiceWithModerationModelIT.java
@@ -0,0 +1,38 @@
+package dev.langchain4j.service.spring.mode.automatic.withModerationModel;
+
+import dev.langchain4j.service.ModerationException;
+import dev.langchain4j.service.spring.AiServicesAutoConfig;
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.autoconfigure.AutoConfigurations;
+import org.springframework.boot.test.context.runner.ApplicationContextRunner;
+
+import static dev.langchain4j.service.spring.mode.ApiKeys.OPENAI_API_KEY;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+class AiServiceWithModerationModelIT {
+
+    ApplicationContextRunner contextRunner = new ApplicationContextRunner()
+            .withConfiguration(AutoConfigurations.of(AiServicesAutoConfig.class));
+
+    @Test
+    void should_create_AI_service_with_moderation_model() {
+        contextRunner
+                .withPropertyValues(
+                        "langchain4j.open-ai.chat-model.api-key=" + OPENAI_API_KEY,
+                        "langchain4j.open-ai.chat-model.max-tokens=20",
+                        "langchain4j.open-ai.chat-model.temperature=0.0"
+                )
+                .withUserConfiguration(AiServiceWithModerationModelApplication.class)
+                .run(context -> {
+
+                    // given
+                    AiServiceWithModerationModel aiService = context.getBean(AiServiceWithModerationModel.class);
+
+                    // when & then
+                    assertThatThrownBy(() -> aiService.chat("I'm violating content policy"))
+                            .isInstanceOf(ModerationException.class)
+                            .hasMessageContaining("Flagged");
+
+                });
+    }
+}