2 files changed, 19 insertions, 14 deletions

diff --git a/src/main/java/org/onap/aai/datarouter/entity/AaiEventEntity.java b/src/main/java/org/onap/aai/datarouter/entity/AaiEventEntity.java
index c32cd6f..0391ae3 100644
--- a/src/main/java/org/onap/aai/datarouter/entity/AaiEventEntity.java
+++ b/src/main/java/org/onap/aai/datarouter/entity/AaiEventEntity.java
@@ -72,9 +72,9 @@ public class AaiEventEntity implements DocumentStoreDataEntity, Serializable {
   protected String entityType;
   protected String entityPrimaryKeyName;
   protected String entityPrimaryKeyValue;
-  protected ArrayList<String> searchTagCollection = new ArrayList<String>();
-  protected ArrayList<String> searchTagIdCollection = new ArrayList<String>();
-  protected ArrayList<String> crossEntityReferenceCollection = new ArrayList<String>();
+  protected ArrayList<String> searchTagCollection = new ArrayList<>();
+  protected ArrayList<String> searchTagIdCollection = new ArrayList<>();
+  protected ArrayList<String> crossEntityReferenceCollection = new ArrayList<>();
   protected String lastmodTimestamp;
   protected String link;
 
@@ -95,7 +95,7 @@ public class AaiEventEntity implements DocumentStoreDataEntity, Serializable {
 
 
   private static String convertBytesToHexString(byte[] bytesToConvert) {
-    StringBuffer hexString = new StringBuffer();
+    StringBuilder hexString = new StringBuilder();
     for (int i = 0; i < bytesToConvert.length; i++) {
       hexString.append(Integer.toHexString(0xFF & bytesToConvert[i]));
     }
@@ -104,13 +104,12 @@ public class AaiEventEntity implements DocumentStoreDataEntity, Serializable {
 
   private static String concatArray(List<String> list, char delimiter) {
 
-    if (list == null || list.size() == 0) {
+    if (list == null || list.isEmpty()) {
       return "";
     }
 
     StringBuilder result = new StringBuilder(64);
 
-    int listSize = list.size();
     boolean firstValue = true;
 
     for (String item : list) {
diff --git a/src/main/java/org/onap/aai/datarouter/entity/AggregationEntity.java b/src/main/java/org/onap/aai/datarouter/entity/AggregationEntity.java
index 44927eb..56ef6fd 100644
--- a/src/main/java/org/onap/aai/datarouter/entity/AggregationEntity.java
+++ b/src/main/java/org/onap/aai/datarouter/entity/AggregationEntity.java
@@ -49,6 +49,8 @@ public class AggregationEntity implements DocumentStoreDataEntity, Serializable
   public void setLink(String link) {
     this.link = link;
   }
+
+  @Override
   public String getId() {
     // make sure that deliveFields() is called before getting the id
     return id;
@@ -66,7 +68,7 @@ public class AggregationEntity implements DocumentStoreDataEntity, Serializable
   }
 
 
-  Map<String, String> attributes = new HashMap<String, String>();
+  Map<String, String> attributes = new HashMap<>();
   ObjectMapper mapper = new ObjectMapper();
   
   /**
@@ -86,20 +88,22 @@ public class AggregationEntity implements DocumentStoreDataEntity, Serializable
 
     while (nodes.hasNext()) {
       Map.Entry<String, JsonNode> entry = (Map.Entry<String, JsonNode>) nodes.next();
-      if (!entry.getKey().equalsIgnoreCase("relationship-list")){
+      if (!"relationship-list".equalsIgnoreCase(entry.getKey())){
         attributes.put(entry.getKey(), entry.getValue().asText());
       }
     }
   }
   
   public void copyAttributeKeyValuePair(Map<String, Object> map){
-    for(String key: map.keySet()){
-      if (!key.equalsIgnoreCase("relationship-list")){   // ignore relationship data which is not required in aggregation
-        this.attributes.put(key, map.get(key).toString());    // not sure if entity attribute can contain an object as value
+    for(Map.Entry<String, Object> entry: map.entrySet()){
+      String key = entry.getKey();
+      Object value = entry.getValue();
+      if (!"relationship-list".equalsIgnoreCase(key)){   // ignore relationship data which is not required in aggregation
+        this.attributes.put(key, value.toString());    // not sure if entity attribute can contain an object as value
       }
     }
   }
-  
+ 
   public void addAttributeKeyValuePair(String key, String value){
     this.attributes.put(key, value);
   }
@@ -108,8 +112,10 @@ public class AggregationEntity implements DocumentStoreDataEntity, Serializable
     ObjectNode rootNode = mapper.createObjectNode();
     rootNode.put("link", this.getLink());
     rootNode.put("lastmodTimestamp", lastmodTimestamp);
-    for (String key: this.attributes.keySet()){
-      rootNode.put(key, this.attributes.get(key));
+    for (Map.Entry<String, String> entry: this.attributes.entrySet()){
+      String key = entry.getKey();
+      String value = entry.getValue();
+      rootNode.put(key, value);
     }
     return rootNode.toString();
   }