[FIXED JENKINS-19691] - Added the hudson.model.Queue.cacheRefreshPeri…

…od option The option allows to manage the refresh period of the internal queue cache. Signed-off-by: Oleg Nenashev <o.v.nenashev@gmail.com> (cherry picked from commit 0d82598) (cherry picked from commit 05cb8b2ec6b7e7ca688cfbcf4711bb2d14950eff)
jenkinsci · Nov 13, 2014 · 227b73e · 227b73e
1 parent 0e6f09c
commit 227b73e
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/core/src/main/java/hudson/model/Queue.java b/core/src/main/java/hudson/model/Queue.java
@@ -148,6 +148,14 @@
  */
 @ExportedBean
 public class Queue extends ResourceController implements Saveable {
+
+    /**
+     * Defines the refresh period for of the internal cache ({@link #itemsView}).
+     * Data should be defined in milliseconds, default value - 1000;
+     * @since TODO: define the version
+     */
+    private static int CACHE_REFRESH_PERIOD = Integer.getInteger(Queue.class.getName() + ".cacheRefreshPeriod", 1000);
+
     /**
      * Items that are waiting for its quiet period to pass.
      *
@@ -208,7 +216,7 @@ List<Item> get() {
             long t = System.currentTimeMillis();
             long d = expires.get();
             if (t>d) {// need to refresh the cache
-                long next = t+1000;
+                long next = t+CACHE_REFRESH_PERIOD;
                 if (expires.compareAndSet(d,next)) {
                     // avoid concurrent cache update via CAS.
                     // if the getItems() lock is contended,