From e6d98407264a6f60da697ee4412bcd0a94298b84 Mon Sep 17 00:00:00 2001
From: John Watson <jkwatson@gmail.com>
Date: Thu, 14 Jan 2021 20:00:26 -0800
Subject: [PATCH] tweak the output of the logging exporter: (#2054)

* one span per line
* delineate the span name from the rest of the data
---
 .../javaagent/exporters/logging/LoggingExporter.java       | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/javaagent-exporters/logging/src/main/java/io/opentelemetry/javaagent/exporters/logging/LoggingExporter.java b/javaagent-exporters/logging/src/main/java/io/opentelemetry/javaagent/exporters/logging/LoggingExporter.java
index ec18dee898..7c0c4e1ee4 100644
--- a/javaagent-exporters/logging/src/main/java/io/opentelemetry/javaagent/exporters/logging/LoggingExporter.java
+++ b/javaagent-exporters/logging/src/main/java/io/opentelemetry/javaagent/exporters/logging/LoggingExporter.java
@@ -25,13 +25,14 @@ public class LoggingExporter implements SpanExporter {
   public CompletableResultCode export(Collection<SpanData> list) {
     StringBuilder stringBuilder = new StringBuilder();
     for (SpanData span : list) {
-
+      stringBuilder.setLength(0);
       if (!prefix.isEmpty()) {
         stringBuilder.append(prefix).append(" ");
       }
       stringBuilder
+          .append("'")
           .append(span.getName())
-          .append(" ")
+          .append("' : ")
           .append(span.getTraceId())
           .append(" ")
           .append(span.getSpanId())
@@ -49,8 +50,8 @@ public class LoggingExporter implements SpanExporter {
                 }
                 stringBuilder.append(' ');
               });
+      log.info(stringBuilder.toString());
     }
-    log.info(stringBuilder.toString());
     return CompletableResultCode.ofSuccess();
   }