Minor format

Author: newtork

orchestration/src/main/java/com/sap/ai/sdk/orchestration/OrchestrationHttpExecutor.java

@@ -117,11 +117,8 @@ private static void logRequestStart() {
     val reqId = UUID.randomUUID().toString().substring(0, 8);
     MDC.put("reqId", reqId);
     MDC.put("service", "Orchestration");
-    log.debug(
-        "[reqId={}] Starting Orchestration {} request to {}, destination={}",
-        reqId,
-        MDC.get("mode"),
-        MDC.get("endpoint"),
-        MDC.get("destination"));
+
+    val msg = "[reqId={}] Starting Orchestration {} request to {}, destination={}";
+    log.debug(msg, reqId, MDC.get("mode"), MDC.get("endpoint"), MDC.get("destination"));
   }
 }

orchestration/src/main/java/com/sap/ai/sdk/orchestration/spring/OrchestrationChatModel.java

@@ -15,6 +15,7 @@
 import java.util.List;
 import java.util.Map;
 import java.util.function.Function;
+import java.util.stream.Collectors;
 import javax.annotation.Nonnull;
 import lombok.extern.slf4j.Slf4j;
 import lombok.val;
@@ -73,10 +74,14 @@ public ChatResponse call(@Nonnull final Prompt prompt) {
       if (ToolCallingChatOptions.isInternalToolExecutionEnabled(prompt.getOptions())
           && response.hasToolCalls()) {
 
-        val toolCalls =
-            response.getResult().getOutput().getToolCalls().stream().map(ToolCall::name).toList();
-        log.debug("Executing {} tool call(s) - {}", toolCalls.size(), toolCalls);
+        if (log.isDebugEnabled()) {
+          val tools = response.getResult().getOutput().getToolCalls();
+          val toolsStr = tools.stream().map(ToolCall::name).collect(Collectors.joining(", "));
+          log.debug("Executing {} tool call(s) - {}", tools.size(), toolsStr);
+        }
+
         val toolExecutionResult = toolCallingManager.executeToolCalls(prompt, response);
+
         // Send the tool execution result back to the model.
         log.debug("Re-invoking LLM with tool execution results.");
         return call(new Prompt(toolExecutionResult.conversationHistory(), prompt.getOptions()));