baomingyu commented on a change in pull request #2608:
URL: https://github.com/apache/incubator-inlong/pull/2608#discussion_r811081825



##########
File path: 
inlong-common/src/main/java/org/apache/inlong/commons/metrics/MetricObserver.java
##########
@@ -43,35 +47,36 @@
 
     /**
      * init
-     * 
+     *
      * @param commonProperties
      */
     public static void init(Map<String, String> commonProperties) {
         if (!isInited.compareAndSet(false, true)) {
             return;
         }
-        // init
-        Context context = new Context(commonProperties);
         // get domain name list
-        String metricDomains = 
context.getString(MetricListener.KEY_METRIC_DOMAINS);
+        String metricDomains = 
commonProperties.get(MetricListener.KEY_METRIC_DOMAINS);
         if (StringUtils.isBlank(metricDomains)) {
             return;
         }
         // split domain name
         String[] domains = metricDomains.split("\\s+");
         for (String domain : domains) {
             // get domain parameters
-            Context domainContext = new Context(
-                    context.getSubProperties(MetricListener.KEY_METRIC_DOMAINS 
+ "." + domain + "."));
-            List<MetricListener> listenerList = parseDomain(domain, 
domainContext);
+            Map<String, String> domainMap = getSubProperties(commonProperties,
+                    MetricListener.KEY_METRIC_DOMAINS + "." + domain + ".");
+            List<MetricListener> listenerList = parseDomain(domainMap);
             // no listener
             if (listenerList == null || listenerList.size() <= 0) {
                 continue;
             }
             // get snapshot interval
-            long snapshotInterval = 
domainContext.getLong(MetricListener.KEY_SNAPSHOT_INTERVAL, 60000L);
-            LOG.info("begin to register 
domain:{},MetricListeners:{},snapshotInterval:{}", domain, listenerList,
-                    snapshotInterval);
+            long snapshotInterval =
+                    
Long.parseLong(domainMap.getOrDefault(MetricListener.KEY_SNAPSHOT_INTERVAL,

Review comment:
       > If inlong-common do not want to import flume dependency, same function 
can be implemented in this class.
   
   Context need flume dependency, so Context is not used here.




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