X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=policy-agent%2Fsrc%2Fmain%2Fjava%2Forg%2Foransc%2Fpolicyagent%2Frepository%2FPolicies.java;h=c910dd590d42d7c8873cdbd00b9beddae0e585fc;hb=b66dcce5210e25b2571036becb6f0e7b0c23e1b2;hp=58c91b35009082031c2a0a28cb7728b70720bd44;hpb=637540bc28fbf337e0c4c58c051a6b4f7ceb321d;p=nonrtric.git

diff --git a/policy-agent/src/main/java/org/oransc/policyagent/repository/Policies.java b/policy-agent/src/main/java/org/oransc/policyagent/repository/Policies.java
index 58c91b35..c910dd59 100644
--- a/policy-agent/src/main/java/org/oransc/policyagent/repository/Policies.java
+++ b/policy-agent/src/main/java/org/oransc/policyagent/repository/Policies.java
@@ -21,11 +21,10 @@
 package org.oransc.policyagent.repository;
 
 import java.util.Collection;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Set;
-import java.util.Vector;
-
 import org.oransc.policyagent.exceptions.ServiceException;
 
 public class Policies {
@@ -34,9 +33,6 @@ public class Policies {
     private Map<String, Map<String, Policy>> policiesService = new HashMap<>();
     private Map<String, Map<String, Policy>> policiesType = new HashMap<>();
 
-    public Policies() {
-    }
-
     public synchronized void put(Policy policy) {
         policiesId.put(policy.id(), policy);
         multiMapPut(policiesRic, policy.ric().name(), policy);
@@ -45,12 +41,7 @@ public class Policies {
     }
 
     private void multiMapPut(Map<String, Map<String, Policy>> multiMap, String key, Policy value) {
-        Map<String, Policy> map = multiMap.get(key);
-        if (map == null) {
-            map = new HashMap<>();
-            multiMap.put(key, map);
-        }
-        map.put(value.id(), value);
+        multiMap.computeIfAbsent(key, k -> new HashMap<>()).put(value.id(), value);
     }
 
     private void multiMapRemove(Map<String, Map<String, Policy>> multiMap, String key, Policy value) {
@@ -66,9 +57,9 @@ public class Policies {
     private Collection<Policy> multiMapGet(Map<String, Map<String, Policy>> multiMap, String key) {
         Map<String, Policy> map = multiMap.get(key);
         if (map == null) {
-            return new Vector<Policy>();
+            return Collections.emptyList();
         }
-        return map.values();
+        return Collections.unmodifiableCollection(map.values());
     }
 
     public synchronized boolean containsPolicy(String id) {
@@ -88,7 +79,7 @@ public class Policies {
     }
 
     public synchronized Collection<Policy> getAll() {
-        return policiesId.values();
+        return Collections.unmodifiableCollection(policiesId.values());
     }
 
     public synchronized Collection<Policy> getForService(String service) {