Add another method for adding static field to GelfEncoder #80

Author: osiegmar

CHANGELOG.md

@@ -8,6 +8,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 - Support for key value pairs
   [\#86](https://github.com/osiegmar/logback-gelf/issues/86)
+- Add another method for adding static field to GelfEncoder
+  [\#80](https://github.com/osiegmar/logback-gelf/issues/80)
 
 ### Changed
 - Upgrade to Java 11 (Premier Support of Java 8 ended in March 2022).

src/main/java/de/siegmar/logbackgelf/GelfEncoder.java

@@ -264,18 +264,22 @@ public Map<String, Object> getStaticFields() {
         return Collections.unmodifiableMap(staticFields);
     }
 
+    public void addStaticField(final String key, final Object value) {
+        try {
+            addField(staticFields, key, value);
+        } catch (final IllegalArgumentException e) {
+            addWarn("Could not add field " + key, e);
+        }
+    }
+
     public void addStaticField(final String staticField) {
         final String[] split = staticField.split(":", 2);
         if (split.length != 2) {
             addWarn("staticField must be in format key:value - rejecting '" + staticField + "'");
             return;
         }
 
-        try {
-            addField(staticFields, split[0].trim(), split[1].trim());
-        } catch (final IllegalArgumentException e) {
-            addWarn("Could not add field " + staticField, e);
-        }
+        addStaticField(split[0].trim(), split[1].trim());
     }
 
     public List<GelfFieldMapper<?>> getFieldMappers() {

src/test/java/de/siegmar/logbackgelf/GelfEncoderTest.java

@@ -197,6 +197,7 @@ public void complex() throws IOException {
         encoder.setIncludeRawMessage(true);
         encoder.setIncludeLevelName(true);
         encoder.addStaticField("foo:bar");
+        encoder.addStaticField("bar", "baz");
         encoder.setIncludeCallerData(true);
         encoder.setIncludeRootCauseData(true);
         encoder.start();
@@ -215,6 +216,7 @@ public void complex() throws IOException {
         basicValidation(jsonNode);
         assertEquals("DEBUG", jsonNode.get("_level_name").textValue());
         assertEquals("bar", jsonNode.get("_foo").textValue());
+        assertEquals("baz", jsonNode.get("_bar").textValue());
         assertEquals("mdc_value", jsonNode.get("_mdc_key").textValue());
         assertEquals("message {}", jsonNode.get("_raw_message").textValue());
         assertNull(jsonNode.get("_exception"));