Limit number of topics per mmagent whitelist

[dmaap/dbcapi.git] / src / main / java / org / onap / dmaap / dbcapi / service / MirrorMakerService.java

diff --git a/src/main/java/org/onap/dmaap/dbcapi/service/MirrorMakerService.java b/src/main/java/org/onap/dmaap/dbcapi/service/MirrorMakerService.java
index 413590f..8acc4f3 100644 (file)
--- a/src/main/java/org/onap/dmaap/dbcapi/service/MirrorMakerService.java
+++ b/src/main/java/org/onap/dmaap/dbcapi/service/MirrorMakerService.java
@@ -56,6 +56,7 @@ public class MirrorMakerService extends BaseLoggingClass {
        private static String defaultProducerPort;
        private static String defaultConsumerPort;
        private static String centralFqdn;
+       private int maxTopicsPerMM;
        
        public MirrorMakerService() {
                super();
@@ -66,6 +67,7 @@ public class MirrorMakerService extends BaseLoggingClass {
                defaultProducerPort = p.getProperty( "MR.SourceReplicationPort", "9092");
                defaultConsumerPort = p.getProperty( "MR.TargetReplicationPort", "2181");       
                centralFqdn = p.getProperty("MR.CentralCname", "notSet");
+               maxTopicsPerMM = Integer.valueOf( p.getProperty( "MaxTopicsPerMM", "5"));
        }
 
        // will create a MM on MMagent if needed
@@ -90,7 +92,7 @@ public class MirrorMakerService extends BaseLoggingClass {
                                mm.setStatus(DmaapObject_Status.INVALID);
                        } else {
                                prov.makeTopicConnection(central, dmaap.getBridgeAdminFqtn(), centralFqdn );
-                               resp = prov.doPostMessage(mm.updateWhiteList());
+                               resp = prov.doPostMessage(mm.getWhitelistUpdateJSON());
                                if ( ! resp.is2xx()) {
                                        errorLogger.error( DmaapbcLogMessageEnum.MM_PUBLISH_ERROR,"MR Bridge", Integer.toString(resp.getCode()), resp.getMessage());
                                        mm.setStatus(DmaapObject_Status.INVALID);
@@ -109,6 +111,19 @@ public class MirrorMakerService extends BaseLoggingClass {
                mm.setLastMod();
                return mirrors.put( mm.getMmName(), mm);
        }
+       public MirrorMaker getMirrorMaker( String part1, String part2, int index ) {
+               String targetPart;
+
+               // original mm names did not have any index, so leave off index 0 for
+               // backwards compatibility
+               if ( index == 0 ) {
+                       targetPart = part2;
+               } else {
+                       targetPart = part2 + "_" + index;
+               }
+               logger.info( "getMirrorMaker using " + part1 + " and " + targetPart );
+               return mirrors.get(MirrorMaker.genKey(part1, targetPart));
+       }
        public MirrorMaker getMirrorMaker( String part1, String part2 ) {
                logger.info( "getMirrorMaker using " + part1 + " and " + part2 );
                return mirrors.get(MirrorMaker.genKey(part1, part2));
@@ -139,5 +154,48 @@ public class MirrorMakerService extends BaseLoggingClass {
                
                return ret;
        }
+       
+       public MirrorMaker getNextMM( String source, String target ) {
+               int i = 0;
+               MirrorMaker mm = null;
+               while( mm == null ) {
+                       
+                       mm = this.getMirrorMaker( source, target, i);
+                       if ( mm == null ) {
+                               mm = new MirrorMaker(source, target, i);
+                       }
+                       if ( mm.getTopicCount() >= maxTopicsPerMM ) {
+                               logger.info( "getNextMM: MM " + mm.getMmName() + " has " + mm.getTopicCount() + " topics.  Moving to next MM");
+                               i++;
+                               mm = null;
+                       }
+               }
+        
+               
+               return mm;
+       }
+
+       public MirrorMaker splitMM( MirrorMaker orig ) {
+               
+               int index = 1;
+               String source = orig.getSourceCluster();
+               String target = orig.getTargetCluster();
+               
+               
+               ArrayList<String> whitelist = orig.getTopics();
+               while( whitelist.size() > maxTopicsPerMM ) {
+                       MirrorMaker mm = this.getNextMM( source, target );
+                       int last = whitelist.size() - 1;
+                       String topic = whitelist.get(last);
+                       whitelist.remove(last);
+                       mm.addTopic(topic);     
+                       this.updateMirrorMaker(mm);
+               }
+               
+               orig.setTopics(whitelist);
+
+               return orig;
+               
+       }
 
 }