Support logback context properties

README.md

@@ -73,6 +73,10 @@ The general configuration format is as follows:
 ```scala
 logback {
   scan-period = 30 seconds
+
+  properties {
+    property1 = "value"
+  }
 
   appenders {
     appender-name {

src/main/java/org/gnieh/logback/config/ConfigConfigurator.java

@@ -86,6 +86,17 @@ public void configure(LoggerContext loggerContext) {
         // load the configuration per config loading rules
         final Config logbackConfig = config.getConfig(logbackConfigRoot);
 
+        if (logbackConfig.hasPath("properties")) {
+            if (logbackConfig.getValue("properties") instanceof ConfigObject) {
+                final ConfigObject propertyConfigs = (ConfigObject) logbackConfig.getValue("properties");
+                for (Entry<String, ConfigValue> entry : propertyConfigs.toConfig().entrySet()) {
+                    loggerContext.putProperty(entry.getKey(), entry.getValue().unwrapped().toString());
+                }
+            } else {
+                addWarn("Invalid properties configuration. Ignoring it.");
+            }
+        }
+
         final Config appenderConfigs = logbackConfig.getConfig("appenders");
         final ConfigAppendersCache appendersCache = new ConfigAppendersCache();
         appendersCache.setLoader(name -> configureAppender(loggerContext, name, appenderConfigs.getConfig("\"" + name + "\""), beanCache, appendersCache));

src/main/resources/reference.conf

@@ -1,9 +1,10 @@
 logback-root = logback
 
 logback {
+  properties {}
 
   loggers {}
 
-  appenders = {}
+  appenders {}
 
 }

src/test/resources/rollingFileAppender.conf

@@ -1,6 +1,9 @@
 logback-root = test.logback
 
 test.logback = ${logback} {
+  properties {
+    fname = test
+  }
   appenders {
     rolling = {
       class = "ch.qos.logback.core.rolling.RollingFileAppender"
@@ -10,12 +13,12 @@ test.logback = ${logback} {
         pattern = "%date %level %logger %thread %msg%n"
       }
 
-      file = "logs/test.log"
+      file = "logs/${fname}.log"
 
       rolling-policy = {
         class = "ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy"
 
-        file-name-pattern = "logs/test%d{yyyy-MM-dd}.%i.log"
+        file-name-pattern = "logs/${fname}%d{yyyy-MM-dd}.%i.log"
 
         max-file-size = "5MB"