Add the MD5 Check to Avoid Duplicated Deployment

[holmes/engine-management.git] / engine-d / src / main / java / org / onap / holmes / engine / dcae / DcaeConfigurationPolling.java

diff --git a/engine-d/src/main/java/org/onap/holmes/engine/dcae/DcaeConfigurationPolling.java b/engine-d/src/main/java/org/onap/holmes/engine/dcae/DcaeConfigurationPolling.java
index 4808009..01a98a4 100644 (file)
--- a/engine-d/src/main/java/org/onap/holmes/engine/dcae/DcaeConfigurationPolling.java
+++ b/engine-d/src/main/java/org/onap/holmes/engine/dcae/DcaeConfigurationPolling.java
@@ -15,23 +15,25 @@
  */
 package org.onap.holmes.engine.dcae;
 
+import com.fasterxml.jackson.core.JsonProcessingException;
 import lombok.extern.slf4j.Slf4j;
 import org.onap.holmes.common.dcae.DcaeConfigurationQuery;
 import org.onap.holmes.common.dcae.DcaeConfigurationsCache;
 import org.onap.holmes.common.dcae.entity.DcaeConfigurations;
 import org.onap.holmes.common.dropwizard.ioc.utils.ServiceLocatorHolder;
 import org.onap.holmes.common.exception.CorrelationException;
+import org.onap.holmes.common.utils.Md5Util;
 import org.onap.holmes.dsa.dmaappolling.Subscriber;
 import org.onap.holmes.engine.dmaap.SubscriberAction;
 
 @Slf4j
-public class DcaeConfigurationPolling implements Runnable{
+public class DcaeConfigurationPolling implements Runnable {
 
     private String hostname;
 
-    private String subscriberKey = "sec_fault_unsecure";
+    public static long POLLING_PERIOD = 30 * 1000L;
 
-    public static long POLLING_PERIOD = 10 * 1000L;
+    private String prevConfigMd5 = Md5Util.md5(null);
 
     public DcaeConfigurationPolling(String hostname) {
         this.hostname = hostname;
@@ -41,24 +43,33 @@ public class DcaeConfigurationPolling implements Runnable{
     public void run() {
         DcaeConfigurations dcaeConfigurations = null;
         try {
-            dcaeConfigurations = DcaeConfigurationQuery
-                    .getDcaeConfigurations(hostname);
+            dcaeConfigurations = DcaeConfigurationQuery.getDcaeConfigurations(hostname);
+            String md5 = Md5Util.md5(dcaeConfigurations);
+            if (prevConfigMd5.equals(md5)){
+                log.info("Operation aborted due to identical Configurations.");
+                return;
+            }
+            prevConfigMd5 = md5;
         } catch (CorrelationException e) {
-            log.error("Failed to polling dcae configurations" + e.getMessage());
+            log.error("Failed to poll the DCAE configurations. " + e.getMessage());
+        } catch (JsonProcessingException e) {
+            log.info("Failed to generate the MD5 information for new configurations.", e);
         }
         if (dcaeConfigurations != null) {
             DcaeConfigurationsCache.setDcaeConfigurations(dcaeConfigurations);
-            addSubscriber(dcaeConfigurations);
+            addSubscribers(dcaeConfigurations);
         }
     }
 
-    private void addSubscriber(DcaeConfigurations dcaeConfigurations) {
+    private void addSubscribers(DcaeConfigurations dcaeConfigurations) {
         SubscriberAction subscriberAction = ServiceLocatorHolder.getLocator()
                 .getService(SubscriberAction.class);
-        Subscriber subscriber = new Subscriber();
-        subscriber.setTopic(subscriberKey);
-        subscriber.setUrl(dcaeConfigurations.getSubSecInfo(subscriberKey).getDmaapInfo()
-                .getTopicUrl());
-        subscriberAction.addSubscriber(subscriber);
+        for (String key : dcaeConfigurations.getSubKeys()) {
+            Subscriber subscriber = new Subscriber();
+            subscriber.setTopic(key);
+            subscriber.setUrl(dcaeConfigurations.getSubSecInfo(key).getDmaapInfo()
+                    .getTopicUrl());
+            subscriberAction.addSubscriber(subscriber);
+        }
     }
 }