Fix sonar issues

Replaced methods size() to isEmpty() based on Sonar recommendations

Issue-ID: SDNC-1568
Change-Id: I9b2548ba1d42e009a62ddd34f4f43452622c6ff0
Signed-off-by: m.miernik <m.miernik@samsung.com>

9 files changed, 14 insertions, 14 deletions

diff --git a/sdnr/wt/common/src/main/java/org/onap/ccsdk/features/sdnr/wt/common/configuration/subtypes/SectionValue.java b/sdnr/wt/common/src/main/java/org/onap/ccsdk/features/sdnr/wt/common/configuration/subtypes/SectionValue.java
index f513e011c..6715be1dc 100644
--- a/sdnr/wt/common/src/main/java/org/onap/ccsdk/features/sdnr/wt/common/configuration/subtypes/SectionValue.java
+++ b/sdnr/wt/common/src/main/java/org/onap/ccsdk/features/sdnr/wt/common/configuration/subtypes/SectionValue.java
@@ -79,7 +79,7 @@ class SectionValue {
 
     public void removeComment(String comment) {
         this.comments.remove(comment);
-        this.isUncommented = this.comments.size()==0;
+        this.isUncommented = this.comments.isEmpty();
     }
 
     public List<String> getComments() {
diff --git a/sdnr/wt/common/src/main/java/org/onap/ccsdk/features/sdnr/wt/common/database/queries/BoolQueryBuilder.java b/sdnr/wt/common/src/main/java/org/onap/ccsdk/features/sdnr/wt/common/database/queries/BoolQueryBuilder.java
index 359b9d04b..83c08b270 100644
--- a/sdnr/wt/common/src/main/java/org/onap/ccsdk/features/sdnr/wt/common/database/queries/BoolQueryBuilder.java
+++ b/sdnr/wt/common/src/main/java/org/onap/ccsdk/features/sdnr/wt/common/database/queries/BoolQueryBuilder.java
@@ -40,7 +40,7 @@ public class BoolQueryBuilder extends QueryBuilder {
     }
 
     public static boolean isEmpty(JSONObject o) {
-        return o.keySet().size() <= 0;
+        return o.keySet().isEmpty();
     }
 
     public BoolQueryBuilder must(QueryBuilder query) {
diff --git a/sdnr/wt/data-provider/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/dataprovider/data/entity/HtDatabaseEventsService.java b/sdnr/wt/data-provider/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/dataprovider/data/entity/HtDatabaseEventsService.java
index 948bd7317..b23d882c8 100644
--- a/sdnr/wt/data-provider/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/dataprovider/data/entity/HtDatabaseEventsService.java
+++ b/sdnr/wt/data-provider/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/dataprovider/data/entity/HtDatabaseEventsService.java
@@ -361,7 +361,7 @@ public class HtDatabaseEventsService implements ArchiveCleanProvider, DataProvid
             }
         }
 
-        if (failures.size() > 0) {
+        if (!failures.isEmpty()) {
             throw new DataInconsistencyException(new ArrayList<>(repairList.values()),
                     "inventory list is not consistent;\n" + String.join("\n", failures));
         }
diff --git a/sdnr/wt/data-provider/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/dataprovider/http/about/MarkdownTable.java b/sdnr/wt/data-provider/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/dataprovider/http/about/MarkdownTable.java
index 9fd6975b6..ac9cb44fe 100644
--- a/sdnr/wt/data-provider/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/dataprovider/http/about/MarkdownTable.java
+++ b/sdnr/wt/data-provider/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/dataprovider/http/about/MarkdownTable.java
@@ -48,7 +48,7 @@ public class MarkdownTable {
     public String toMarkDown() {
         StringBuilder sb = new StringBuilder();
         final int cols =
-                this.columns != null ? this.columns.length : this.rows.size() > 0 ? this.rows.get(0).length : 0;
+                this.columns != null ? this.columns.length : !this.rows.isEmpty() ? this.rows.get(0).length : 0;
         if (cols > 0) {
             sb.append("|");
             for (int i = 0; i < cols; i++) {
diff --git a/sdnr/wt/data-provider/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/dataprovider/impl/DataTreeProviderImpl.java b/sdnr/wt/data-provider/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/dataprovider/impl/DataTreeProviderImpl.java
index e69ddb737..b44906289 100644
--- a/sdnr/wt/data-provider/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/dataprovider/impl/DataTreeProviderImpl.java
+++ b/sdnr/wt/data-provider/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/dataprovider/impl/DataTreeProviderImpl.java
@@ -134,7 +134,7 @@ public class DataTreeProviderImpl {
     public DataTreeObject readInventoryTree(List<String> tree, String filter) throws IOException {
 
         //root nodes will be node-information -> below inventory
-        if (tree == null || tree.size() <= 0) {
+        if (tree == null || tree.isEmpty()) {
             return this.readInventoryTreeWithNode(filter);
         }
         //root node will be inventory on tree-level if sliced treePath
@@ -155,7 +155,7 @@ public class DataTreeProviderImpl {
             throws IOException {
         DataTreeObject tree = new DataTreeObject(INVENTORY_PROPERTY_PARENTUUID, INVENTORY_PROPERTY_UUID);
         final String parentUuid = list.size() > 1 ? list.get(list.size() - 2) : null;
-        final String uuid = list.size() > 0 ? list.get(list.size() - 1) : null;
+        final String uuid = list.isEmpty() ? null : list.get(list.size() - 1);
         List<SearchHit> matches = this.search(Entity.Inventoryequipment, filter, INVENTORY_PROPERTY_NODEID, nodeId,
                 INVENTORY_PROPERTY_PARENTUUID, parentUuid, INVENTORY_PROPERTY_UUID, uuid, INVENTORY_PROPERTY_TREELEVEL);
 
@@ -163,7 +163,7 @@ public class DataTreeProviderImpl {
         List<SearchHit> others = this.search(Entity.Inventoryequipment, (String) null, INVENTORY_PROPERTY_NODEID, nodeId,
                 null, null, null, null, INVENTORY_PROPERTY_TREELEVEL);
         if (matches.size() > 0) {
-            int treeLevelToStart = (list == null || list.size() <= 0) ? 0 : list.size() - 1;
+            int treeLevelToStart = (list == null || list.isEmpty()) ? 0 : list.size() - 1;
             //build tree
             JSONObject hitData;
             //fill root elems
diff --git a/sdnr/wt/devicemanager-core/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/housekeeping/ResyncNetworkElementHouskeepingService.java b/sdnr/wt/devicemanager-core/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/housekeeping/ResyncNetworkElementHouskeepingService.java
index 50b0215d6..fe166c92d 100644
--- a/sdnr/wt/devicemanager-core/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/housekeeping/ResyncNetworkElementHouskeepingService.java
+++ b/sdnr/wt/devicemanager-core/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/housekeeping/ResyncNetworkElementHouskeepingService.java
@@ -99,7 +99,7 @@ public class ResyncNetworkElementHouskeepingService implements ResyncNetworkElem
             List<String> nodeNamesInput;
 
             // Create list of mountpoints if input is empty, using the content in ES
-            if (nodeNames == null || nodeNames.size() <= 0) {
+            if (nodeNames == null || nodeNames.isEmpty()) {
                 nodeNamesInput = this.databaseClientEvents.getAllNodesWithCurrentAlarms();
             } else {
                 nodeNamesInput = nodeNames;
diff --git a/sdnr/wt/helpserver/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/helpserver/data/HelpInfrastructureObject.java b/sdnr/wt/helpserver/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/helpserver/data/HelpInfrastructureObject.java
index ebf11b6af..35dbeec9f 100644
--- a/sdnr/wt/helpserver/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/helpserver/data/HelpInfrastructureObject.java
+++ b/sdnr/wt/helpserver/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/helpserver/data/HelpInfrastructureObject.java
@@ -72,7 +72,7 @@ public class HelpInfrastructureObject extends JSONObject {
     public static class NodeObject extends JSONObject {
         public NodeObject(Path base, File dir, String label, ArrayList<VersionObject> versions) {
             this.put("label", label);
-            if (versions != null && versions.size() > 0) {
+            if (versions != null && !versions.isEmpty()) {
                 JSONObject o = new JSONObject();
                 this.put("versions", o);
                 for (VersionObject version : versions) {
@@ -87,7 +87,7 @@ public class HelpInfrastructureObject extends JSONObject {
             for (File f : list) {
                 if (f.isDirectory()) {
                     ArrayList<VersionObject> versions2 = findReadmeVersionFolders(base, f.toPath(), true);
-                    if (versions2 != null && versions2.size() > 0) {
+                    if (versions2 != null && !versions2.isEmpty()) {
                         JSONObject nodes;
                         if (!this.has("nodes")) {
                             this.put("nodes", new JSONObject());
@@ -112,7 +112,7 @@ public class HelpInfrastructureObject extends JSONObject {
         for (File f : list) {
             if (f.isDirectory()) {
                 ArrayList<VersionObject> versions = findReadmeVersionFolders(root.toPath(), f.toPath(), true);
-                if (versions != null && versions.size() > 0) {
+                if (versions != null && !versions.isEmpty()) {
                     NodeObject o = new NodeObject(pRoot, f, f.getName(), versions);
                     this.put(o.getString("label").toLowerCase(), o);
                 }
@@ -134,7 +134,7 @@ public class HelpInfrastructureObject extends JSONObject {
         }
         Collections.sort(list, VersionObject.getComparer());
         Collections.reverse(list);
-        if (list.size() > 0 && appendCurrent) {
+        if (!list.isEmpty() && appendCurrent) {
             list.add(list.get(0).cloneAsCurrent());
         }
         return list;
diff --git a/sdnr/wt/odlux/core/model/src/main/java/com/opensymphony/xwork2/util/ClassLoaderUtil.java b/sdnr/wt/odlux/core/model/src/main/java/com/opensymphony/xwork2/util/ClassLoaderUtil.java
index 636c9db29..bbe36c840 100644
--- a/sdnr/wt/odlux/core/model/src/main/java/com/opensymphony/xwork2/util/ClassLoaderUtil.java
+++ b/sdnr/wt/odlux/core/model/src/main/java/com/opensymphony/xwork2/util/ClassLoaderUtil.java
@@ -203,7 +203,7 @@ public class ClassLoaderUtil {
 
         private Enumeration<E> determineCurrentEnumeration() {
             if (cur != null && !cur.hasMoreElements()) {
-                if (enums.size() > 0) {
+                if (!enums.isEmpty()) {
                     cur = enums.removeLast();
                 } else {
                     cur = null;
diff --git a/sdnr/wt/websocketmanager/model/src/main/java/org/onap/ccsdk/features/sdnr/wt/websocketmanager/model/data/SchemaInfo.java b/sdnr/wt/websocketmanager/model/src/main/java/org/onap/ccsdk/features/sdnr/wt/websocketmanager/model/data/SchemaInfo.java
index 4d3975379..b920ffe71 100644
--- a/sdnr/wt/websocketmanager/model/src/main/java/org/onap/ccsdk/features/sdnr/wt/websocketmanager/model/data/SchemaInfo.java
+++ b/sdnr/wt/websocketmanager/model/src/main/java/org/onap/ccsdk/features/sdnr/wt/websocketmanager/model/data/SchemaInfo.java
@@ -79,7 +79,7 @@ public class SchemaInfo {
     @JsonIgnore
     public boolean isValid() {
         return this.namespace != null
-                && (this.notification == null || (this.notification != null && this.notification.size() > 0));
+                && (this.notification == null || (this.notification != null && !this.notification.isEmpty()));
     }
 
     /**