1 files changed, 52 insertions, 36 deletions
diff --git a/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/DeliveryQueue.java b/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/DeliveryQueue.java
index a3df26ac..b7699e53 100644
--- a/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/DeliveryQueue.java
+++ b/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/DeliveryQueue.java
@@ -26,19 +26,21 @@ package org.onap.dmaap.datarouter.node;
 
 import com.att.eelf.configuration.EELFLogger;
 import com.att.eelf.configuration.EELFManager;
-import java.io.*;
-import java.util.*;
+import java.io.File;
+import java.util.Arrays;
+import java.util.Hashtable;
+import java.util.Vector;
 import org.jetbrains.annotations.Nullable;
 
 /**
  * Mechanism for monitoring and controlling delivery of files to a destination.
- * <p>
- * The DeliveryQueue class maintains lists of DeliveryTasks for a single
+ *
+ * <p>The DeliveryQueue class maintains lists of DeliveryTasks for a single
  * destination (a subscription or another data router node) and assigns
  * delivery threads to try to deliver them.  It also maintains a delivery
  * status that causes it to back off on delivery attempts after a failure.
- * <p>
- * If the most recent delivery result was a failure, then no more attempts
+ *
+ * <p>If the most recent delivery result was a failure, then no more attempts
  * will be made for a period of time.  Initially, and on the first failure
  * following a success, this delay will be DeliveryQueueHelper.getInitFailureTimer() (milliseconds).
  * If, after this delay, additional failures occur, each failure will
@@ -50,8 +52,8 @@ import org.jetbrains.annotations.Nullable;
  * delivery fails while the delay was active, it will not change the delay
  * or change the duration of any subsequent delay.
  * If, however, it succeeds, it will cancel the delay.
- * <p>
- * The queue maintains 3 collections of files to deliver: A todo list of
+ *
+ * <p>The queue maintains 3 collections of files to deliver: A todo list of
  * files that will be attempted, a working set of files that are being
  * attempted, and a retry set of files that were attempted and failed.
  * Whenever the todo list is empty and needs to be refilled, a scan of the
@@ -62,13 +64,14 @@ import org.jetbrains.annotations.Nullable;
  * If, when a DeliveryTask is about to be removed from the todo list, its
  * age exceeds DeliveryQueueHelper.getExpirationTimer(), then it is instead
  * marked as expired.
- * <p>
- * A delivery queue also maintains a skip flag.  This flag is true if the
+ *
+ * <p>A delivery queue also maintains a skip flag.  This flag is true if the
  * failure timer is active or if no files are found in a directory scan.
  */
 public class DeliveryQueue implements Runnable, DeliveryTaskHelper {
     private static EELFLogger logger = EELFManager.getInstance().getLogger(DeliveryQueue.class);
     private DeliveryQueueHelper deliveryQueueHelper;
+
     private DestInfo destinationInfo;
     private Hashtable<String, DeliveryTask> working = new Hashtable<>();
     private Hashtable<String, DeliveryTask> retry = new Hashtable<>();
@@ -107,7 +110,8 @@ public class DeliveryQueue implements Runnable, DeliveryTaskHelper {
         if (dt.isCleaned()) {
             return (0);
         }
-        StatusLog.logExp(dt.getPublishId(), dt.getFeedId(), dt.getSubId(), dt.getURL(), dt.getMethod(), dt.getCType(), dt.getLength(), "diskFull", dt.getAttempts());
+        StatusLog.logExp(dt.getPublishId(), dt.getFeedId(), dt.getSubId(), dt.getURL(),
+                dt.getMethod(), dt.getCType(), dt.getLength(), "diskFull", dt.getAttempts());
         dt.clean();
         return (dt.getLength());
     }
@@ -148,7 +152,7 @@ public class DeliveryQueue implements Runnable, DeliveryTaskHelper {
             if (failduration == 0) {
                 if (destinationInfo.isPrivilegedSubscriber()) {
                     failduration = deliveryQueueHelper.getWaitForFileProcessFailureTimer();
-                } else{
+                } else {
                     failduration = deliveryQueueHelper.getInitFailureTimer();
                 }
             }
@@ -224,7 +228,7 @@ public class DeliveryQueue implements Runnable, DeliveryTaskHelper {
     }
 
     /**
-     * Create a delivery queue for a given destination info
+     * Create a delivery queue for a given destination info.
      */
     DeliveryQueue(DeliveryQueueHelper deliveryQueueHelper, DestInfo destinationInfo) {
         this.deliveryQueueHelper = deliveryQueueHelper;
@@ -234,82 +238,93 @@ public class DeliveryQueue implements Runnable, DeliveryTaskHelper {
     }
 
     /**
-     * Update the destination info for this delivery queue
+     * Update the destination info for this delivery queue.
      */
     public void config(DestInfo destinationInfo) {
         this.destinationInfo = destinationInfo;
     }
 
     /**
-     * Get the dest info
+     * Get the dest info.
      */
     public DestInfo getDestinationInfo() {
         return (destinationInfo);
     }
 
     /**
-     * Get the config manager
+     * Get the config manager.
      */
     public DeliveryQueueHelper getConfig() {
         return (deliveryQueueHelper);
     }
 
     /**
-     * Exceptional condition occurred during delivery
+     * Exceptional condition occurred during delivery.
      */
     public void reportDeliveryExtra(DeliveryTask task, long sent) {
         StatusLog.logDelExtra(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getLength(), sent);
     }
 
     /**
-     * Message too old to deliver
+     * Message too old to deliver.
      */
     void reportExpiry(DeliveryTask task) {
-        StatusLog.logExp(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(), task.getCType(), task.getLength(), "retriesExhausted", task.getAttempts());
+        StatusLog.logExp(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(),
+                task.getCType(), task.getLength(), "retriesExhausted", task.getAttempts());
         markExpired(task);
     }
 
     /**
-     * Completed a delivery attempt
+     * Completed a delivery attempt.
      */
     public void reportStatus(DeliveryTask task, int status, String xpubid, String location) {
         if (status < 300) {
-            StatusLog.logDel(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(), task.getCType(), task.getLength(), destinationInfo.getAuthUser(), status, xpubid);
+            StatusLog.logDel(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(),
+                    task.getCType(), task.getLength(), destinationInfo.getAuthUser(), status, xpubid);
             if (destinationInfo.isPrivilegedSubscriber()) {
-                task.setResumeTime(System.currentTimeMillis() + deliveryQueueHelper.getWaitForFileProcessFailureTimer());
+                task.setResumeTime(System.currentTimeMillis()
+                                           + deliveryQueueHelper.getWaitForFileProcessFailureTimer());
                 markFailWithRetry(task);
             } else {
                 markSuccess(task);
             }
         } else if (status < 400 && deliveryQueueHelper.isFollowRedirects()) {
-            StatusLog.logDel(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(), task.getCType(), task.getLength(), destinationInfo.getAuthUser(), status, location);
+            StatusLog.logDel(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(),
+                    task.getCType(), task.getLength(), destinationInfo.getAuthUser(), status, location);
             if (deliveryQueueHelper.handleRedirection(destinationInfo, location, task.getFileId())) {
                 markRedirect(task);
             } else {
-                StatusLog.logExp(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(), task.getCType(), task.getLength(), "notRetryable", task.getAttempts());
+                StatusLog.logExp(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(),
+                        task.getMethod(), task.getCType(), task.getLength(), "notRetryable", task.getAttempts());
                 markFailNoRetry(task);
             }
-        } else if (status < 500 && status != 429) {         // Status 429 is the standard response for Too Many Requests and indicates that a file needs to be delivered again at a later time.
-            StatusLog.logDel(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(), task.getCType(), task.getLength(), destinationInfo.getAuthUser(), status, location);
-            StatusLog.logExp(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(), task.getCType(), task.getLength(), "notRetryable", task.getAttempts());
+        } else if (status < 500 && status != 429) {
+            // Status 429 is the standard response for Too Many Requests and indicates
+            // that a file needs to be delivered again at a later time.
+            StatusLog.logDel(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(),
+                    task.getCType(), task.getLength(), destinationInfo.getAuthUser(), status, location);
+            StatusLog.logExp(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(),
+                    task.getCType(), task.getLength(), "notRetryable", task.getAttempts());
             markFailNoRetry(task);
         } else {
-            StatusLog.logDel(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(), task.getCType(), task.getLength(), destinationInfo.getAuthUser(), status, location);
+            StatusLog.logDel(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(),
+                    task.getCType(), task.getLength(), destinationInfo.getAuthUser(), status, location);
             markFailWithRetry(task);
         }
     }
 
     /**
-     * Delivery failed by reason of an exception
+     * Delivery failed by reason of an exception.
      */
     public void reportException(DeliveryTask task, Exception exception) {
-        StatusLog.logDel(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(), task.getCType(), task.getLength(), destinationInfo.getAuthUser(), -1, exception.toString());
+        StatusLog.logDel(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(),
+                task.getCType(), task.getLength(), destinationInfo.getAuthUser(), -1, exception.toString());
         deliveryQueueHelper.handleUnreachable(destinationInfo);
         markFailWithRetry(task);
     }
 
     /**
-     * Get the feed ID for a subscription
+     * Get the feed ID for a subscription.
      *
      * @param subid The subscription ID
      * @return The feed ID
@@ -319,14 +334,14 @@ public class DeliveryQueue implements Runnable, DeliveryTaskHelper {
     }
 
     /**
-     * Get the URL to deliver a message to given the file ID
+     * Get the URL to deliver a message to given the file ID.
      */
     public String getDestURL(String fileid) {
         return (deliveryQueueHelper.getDestURL(destinationInfo, fileid));
     }
 
     /**
-     * Deliver files until there's a failure or there are no more
+     * Deliver files until there's a failure or there are no more.
      * files to deliver
      */
     public void run() {
@@ -343,21 +358,21 @@ public class DeliveryQueue implements Runnable, DeliveryTaskHelper {
     }
 
     /**
-     * Is there no work to do for this queue right now?
+     * Is there no work to do for this queue right now?.
      */
     synchronized boolean isSkipSet() {
         return (peekNext() == null);
     }
 
     /**
-     * Reset the retry timer
+     * Reset the retry timer.
      */
     void resetQueue() {
         resumetime = System.currentTimeMillis();
     }
 
     /**
-     * Get task if in queue and mark as success
+     * Get task if in queue and mark as success.
      */
     boolean markTaskSuccess(String pubId) {
         DeliveryTask task = working.get(pubId);
@@ -375,6 +390,7 @@ public class DeliveryQueue implements Runnable, DeliveryTaskHelper {
         }
         return false;
     }
+
     private void scanForNextTask(String[] files) {
         for (String fname : files) {
             String pubId = getPubId(fname);