ONOS-6980 Adding support for download of application bits.

Change-Id: I742950690b50038cac0bb2ad2da4eaac5781da85
diff --git a/core/net/src/main/java/org/onosproject/app/impl/ApplicationManager.java b/core/net/src/main/java/org/onosproject/app/impl/ApplicationManager.java
index 3c3d60b..d8b09b0 100644
--- a/core/net/src/main/java/org/onosproject/app/impl/ApplicationManager.java
+++ b/core/net/src/main/java/org/onosproject/app/impl/ApplicationManager.java
@@ -179,6 +179,12 @@
         store.setPermissions(appId, permissions);
     }
 
+    @Override
+    public InputStream getApplicationArchive(ApplicationId appId) {
+        checkNotNull(appId, APP_ID_NULL);
+        return store.getApplicationArchive(appId);
+    }
+
     private void updateStoreAndWaitForNotificationHandling(ApplicationId appId,
                                                            Consumer<ApplicationId> storeUpdateTask) {
         CountDownLatch latch = new CountDownLatch(1);