From 739f95d6fd0dce8ff95344e6463ba6c0b3ce572c Mon Sep 17 00:00:00 2001
From: Eugene Schava <eschava@gmail.com>
Date: Fri, 17 Nov 2017 11:14:02 +0200
Subject: [PATCH] fixed issue with failed InfluxDB insertion if custom prefix
 is empty

---
 .../influxdb/generators/AbstractPointGenerator.java   | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/main/java/jenkinsci/plugins/influxdb/generators/AbstractPointGenerator.java b/src/main/java/jenkinsci/plugins/influxdb/generators/AbstractPointGenerator.java
index 3ed1bc9e..e69ef676 100644
--- a/src/main/java/jenkinsci/plugins/influxdb/generators/AbstractPointGenerator.java
+++ b/src/main/java/jenkinsci/plugins/influxdb/generators/AbstractPointGenerator.java
@@ -21,12 +21,17 @@ public AbstractPointGenerator(MeasurementRenderer projectNameRenderer) {
     @Override
     public Point.Builder buildPoint(String name, String customPrefix, Run<?, ?> build) {
         final String renderedProjectName = projectNameRenderer.render(build);
-        return Point
+        Point.Builder builder = Point
                 .measurement(name)
                 .addField(PROJECT_NAME, renderedProjectName)
                 .addField(BUILD_NUMBER, build.getNumber())
-                .tag(PROJECT_NAME, renderedProjectName)
-                .tag(CUSTOM_PREFIX, measurementName(customPrefix));
+                .tag(PROJECT_NAME, renderedProjectName);
+
+        if (customPrefix != null && !customPrefix.isEmpty())
+            builder = builder.tag(CUSTOM_PREFIX, measurementName(customPrefix));
+
+        return builder;
+
     }
 
     protected String measurementName(String measurement) {