Fix NRE.

bretcope · bretcope · commit 5c5cda2a85b3 · 2015-06-16T17:20:08.000-04:00
diff --git a/BosunReporter/Infrastructure/BosunMetric.cs b/BosunReporter/Infrastructure/BosunMetric.cs
@@ -168,7 +168,7 @@ internal string GetTagsJson(ReadOnlyDictionary<string, string> defaultTags, TagV
             var sb = new StringBuilder();
             foreach (var tag in GetTagsList(defaultTags, tagsByTypeCache))
             {
-                var value = tag.IsFromDefault ? defaultTags[tag.Name] : tag.FieldInfo.GetValue(this).ToString();
+                var value = tag.IsFromDefault ? defaultTags[tag.Name] : tag.FieldInfo.GetValue(this)?.ToString();
                 if (tagValueConverter != null)
                     value = tagValueConverter(tag.Name, value);
 

Original file line number	Diff line number	Diff line change
`@@ -168,7 +168,7 @@ internal string GetTagsJson(ReadOnlyDictionary<string, string> defaultTags, TagV`
`168`	`168`	`var sb = new StringBuilder();`
`169`	`169`	`foreach (var tag in GetTagsList(defaultTags, tagsByTypeCache))`
`170`	`170`	`{`
`171`		`- var value = tag.IsFromDefault ? defaultTags[tag.Name] : tag.FieldInfo.GetValue(this).ToString();`
	`171`	`+ var value = tag.IsFromDefault ? defaultTags[tag.Name] : tag.FieldInfo.GetValue(this)?.ToString();`
`172`	`172`	`if (tagValueConverter != null)`
`173`	`173`	`value = tagValueConverter(tag.Name, value);`
`174`	`174`