Fix Sonar bugs and possible NPE in code

Change-Id: I0b087a240bafa1abbb79c97c8545de4d23230716
Issue-ID: AAI-2232
Signed-off-by: Lee, Tian (tl5884) <TianL@amdocs.com>

3 files changed, 11 insertions, 10 deletions

diff --git a/src/main/java/org/onap/aai/spike/event/incoming/OffsetManager.java b/src/main/java/org/onap/aai/spike/event/incoming/OffsetManager.java
index 58795b3..be713ff 100644
--- a/src/main/java/org/onap/aai/spike/event/incoming/OffsetManager.java
+++ b/src/main/java/org/onap/aai/spike/event/incoming/OffsetManager.java
@@ -189,7 +189,7 @@ public class OffsetManager {
      * 
      * @return - The next 'safe' offset.
      */
-    public long getNextOffsetToCommit() {
+    public Long getNextOffsetToCommit() {
         return nextOffsetToCommit;
     }
 
diff --git a/src/main/java/org/onap/aai/spike/service/EchoService.java b/src/main/java/org/onap/aai/spike/service/EchoService.java
index 6c5b5ee..cf3d1b7 100644
--- a/src/main/java/org/onap/aai/spike/service/EchoService.java
+++ b/src/main/java/org/onap/aai/spike/service/EchoService.java
@@ -76,8 +76,7 @@ public class EchoService {
         auditLogger.info(SpikeMsgs.PROCESS_REST_REQUEST,
                 new LogFields().setField(LogLine.DefinedFields.RESPONSE_CODE, Status.OK.toString())
                         .setField(LogLine.DefinedFields.RESPONSE_DESCRIPTION, Status.OK.toString()),
-                (req != null) ? req.getMethod() : "Unknown", (req != null) ? req.getRequestURL().toString() : "Unknown",
-                (req != null) ? req.getRemoteHost() : "Unknown", Status.OK.toString());
+                req.getMethod(), req.getRequestURL().toString(), req.getRemoteHost(), Status.OK.toString());
         MDC.clear();
 
         return new ResponseEntity<>("Alive", HttpStatus.OK);
diff --git a/src/main/java/org/onap/aai/spike/service/SpikeEventProcessor.java b/src/main/java/org/onap/aai/spike/service/SpikeEventProcessor.java
index cd404b0..a18590a 100644
--- a/src/main/java/org/onap/aai/spike/service/SpikeEventProcessor.java
+++ b/src/main/java/org/onap/aai/spike/service/SpikeEventProcessor.java
@@ -20,14 +20,14 @@
  */
 package org.onap.aai.spike.service;
 
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
 import java.util.ArrayList;
 import java.util.TimerTask;
 import java.util.concurrent.BlockingQueue;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.PriorityBlockingQueue;
 import javax.naming.OperationNotSupportedException;
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
 import org.onap.aai.cl.api.Logger;
 import org.onap.aai.cl.eelf.LoggerFactory;
 import org.onap.aai.event.api.EventConsumer;
@@ -40,7 +40,6 @@ import org.onap.aai.spike.event.incoming.OffsetManager;
 import org.onap.aai.spike.event.outgoing.SpikeEventComparator;
 import org.onap.aai.spike.event.outgoing.SpikeEventExclusionStrategy;
 import org.onap.aai.spike.event.outgoing.SpikeGraphEvent;
-import org.onap.aai.spike.exception.SpikeException;
 import org.onap.aai.spike.logging.SpikeMsgs;
 import org.onap.aai.spike.util.SpikeConstants;
 import org.onap.aai.spike.util.SpikeProperties;
@@ -90,7 +89,7 @@ public class SpikeEventProcessor extends TimerTask {
         } catch (Exception ex) {
         }
 
-        eventQueue = new PriorityBlockingQueue<SpikeGraphEvent>(eventQueueCapacity, new SpikeEventComparator());
+        eventQueue = new PriorityBlockingQueue<>(eventQueueCapacity, new SpikeEventComparator());
         new Thread(new SpikeEventPublisher()).start();
 
         // Instantiate the offset manager. This will run a background thread that
@@ -106,6 +105,7 @@ public class SpikeEventProcessor extends TimerTask {
 
         if (consumer == null) {
             logger.error(SpikeMsgs.SPIKE_SERVICE_STARTED_FAILURE, SpikeConstants.SPIKE_SERVICE_NAME);
+            return;
         }
 
         Iterable<MessageWithOffset> events = null;
@@ -164,9 +164,11 @@ public class SpikeEventProcessor extends TimerTask {
                         + modelEvent.getObjectKey() + " , transaction-id: " + modelEvent.getTransactionId());
                 logger.debug(SpikeMsgs.SPIKE_EVENT_PROCESSED, modelEventJson);
 
-            } catch (SpikeException | InterruptedException e) {
+            } catch (InterruptedException e) {
                 logger.error(SpikeMsgs.SPIKE_EVENT_CONSUME_FAILURE,
                         e.getMessage() + ".  Incoming event payload:\n" + event.getMessage());
+                // Restore the interrupted status...
+                Thread.currentThread().interrupt();
             } catch (Exception e) {
                 logger.error(SpikeMsgs.SPIKE_EVENT_CONSUME_FAILURE,
                         e.getMessage() + ".  Incoming event payload:\n" + event.getMessage());
@@ -252,9 +254,9 @@ public class SpikeEventProcessor extends TimerTask {
                     }
 
                 } catch (InterruptedException e) {
-
                     // Restore the interrupted status.
                     Thread.currentThread().interrupt();
+                    continue;
                 }
 
                 // Try publishing the event to the event bus. This call will block
@@ -288,7 +290,7 @@ public class SpikeEventProcessor extends TimerTask {
                     try {
                         Thread.sleep(60000);
                     } catch (InterruptedException e1) {
-                        e1.printStackTrace();
+                        Thread.currentThread().interrupt();
                     }
                 } catch (Exception e) {
                     logger.error(SpikeMsgs.SPIKE_EVENT_PUBLISH_FAILURE, e.getMessage());