chore: Modify conversation examples

Signed-off-by: Javier Aliaga <[email protected]>

Author: javier-aliaga

examples/src/main/java/io/dapr/examples/conversation/AssistantMessageDemo.java

@@ -108,9 +108,10 @@ public static void main(String[] args) {
       // Process and display the response
       if (response != null && response.getOutputs() != null && !response.getOutputs().isEmpty()) {
         ConversationResultAlpha2 result = response.getOutputs().get(0);
+        UsageUtils.printUsage(result);
+
         if (result.getChoices() != null && !result.getChoices().isEmpty()) {
           ConversationResultChoices choice = result.getChoices().get(0);
-
           if (choice.getMessage() != null && choice.getMessage().getContent() != null) {
             System.out.printf("Assistant Response: %s%n", choice.getMessage().getContent());
           }

examples/src/main/java/io/dapr/examples/conversation/ToolsCallDemo.java

@@ -80,6 +80,8 @@ public static void main(String[] args) {
       // Process and display the response
       if (response != null && response.getOutputs() != null && !response.getOutputs().isEmpty()) {
         ConversationResultAlpha2 result = response.getOutputs().get(0);
+        UsageUtils.printUsage(result);
+
         if (result.getChoices() != null && !result.getChoices().isEmpty()) {
           ConversationResultChoices choice = result.getChoices().get(0);
 

examples/src/main/java/io/dapr/examples/conversation/UsageUtils.java

@@ -0,0 +1,92 @@
+/*
+ * Copyright 2026 The Dapr Authors
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package io.dapr.examples.conversation;
+
+import io.dapr.client.domain.ConversationResultAlpha2;
+import io.dapr.client.domain.ConversationResultCompletionUsage;
+import org.springframework.util.StringUtils;
+
+public class UsageUtils {
+  static void printUsage(ConversationResultAlpha2 result) {
+    if (!StringUtils.hasText(result.getModel())){
+      return;
+    }
+
+    System.out.printf("Conversation model : %s", result.getModel());
+    System.out.println();
+    var usage = result.getUsage();
+    printUsage(usage);
+
+    printCompletionDetails(usage);
+    printPromptDetails(usage);
+
+  }
+
+  private static void printUsage(ConversationResultCompletionUsage usage) {
+    System.out.println("Token Usage Details:");
+    System.out.printf("  Completion tokens: %d", usage.getCompletionTokens());
+    System.out.println();
+    System.out.printf("  Prompt tokens: %d", usage.getPromptTokens());
+    System.out.println();
+    System.out.printf("  Total tokens: %d", usage.getTotalTokens());
+    System.out.println();
+  }
+
+  private static void printPromptDetails(ConversationResultCompletionUsage usage) {
+    var completionDetails = usage.getCompletionTokenDetails();
+
+    // Display completion token breakdown if available
+    System.out.println("Prompt Token Details:");
+    if (completionDetails.getReasoningTokens() > 0) {
+      System.out.printf("  Reasoning tokens: %d", completionDetails.getReasoningTokens());
+      System.out.println();
+    }
+    if (completionDetails.getAudioTokens() > 0) {
+      System.out.printf("  Audio tokens: %d", completionDetails.getAudioTokens());
+      System.out.println();
+    }
+    System.out.println();
+  }
+
+  private static void printCompletionDetails(ConversationResultCompletionUsage usage) {
+    // Print detailed token usage information
+    var completionDetails = usage.getCompletionTokenDetails();
+
+    System.out.println("Completion Token Details:");
+    // If audio tokens are available, display them
+    if ( completionDetails.getAudioTokens() > 0) {
+      System.out.printf("  Audio tokens: %d", completionDetails.getAudioTokens());
+      System.out.println();
+    }
+
+    // Display completion token breakdown if available
+    if (completionDetails.getReasoningTokens() > 0) {
+      System.out.printf("  Reasoning tokens: %d", completionDetails.getReasoningTokens());
+      System.out.println();
+    }
+
+    // Display completion token breakdown if available
+    if (completionDetails.getAcceptedPredictionTokens() > 0) {
+      System.out.printf("  Accepted prediction tokens: %d", completionDetails.getAcceptedPredictionTokens());
+      System.out.println();
+    }
+
+    // Display completion token breakdown if available
+    if (completionDetails.getRejectedPredictionTokens() > 0) {
+      System.out.printf("  Rejected prediction tokens: %d", completionDetails.getRejectedPredictionTokens());
+      System.out.println();
+    }
+    System.out.println();
+  }
+}

examples/src/main/java/io/dapr/examples/conversation/UserMessageDemo.java

@@ -58,6 +58,8 @@ public static void main(String[] args) {
       // Extract and print the conversation result
       if (response != null && response.getOutputs() != null && !response.getOutputs().isEmpty()) {
         ConversationResultAlpha2 result = response.getOutputs().get(0);
+        UsageUtils.printUsage(result);
+
         if (result.getChoices() != null && !result.getChoices().isEmpty()) {
           ConversationResultChoices choice = result.getChoices().get(0);
           if (choice.getMessage() != null && choice.getMessage().getContent() != null) {