[QPID-6536] [Java Broker] UI tabs should inform user when the underlying object disappears i.e. starts to return 404

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.18, 0.20, 0.22, 0.24, 0.26, 0.28, 0.30, 0.32
• Fix Version/s: qpid-java-6.0
• Component/s: Broker-J
• Assignee: Robert Godfrey
• Reporter: Alex Rudyy
• Created: 08/May/15 16:05
• Updated: 16/Jun/15 21:45
• Resolved: 16/Jun/15 21:45

Description

As an operator of a Qpid Broker, I may watch an object through the UI. For instance, I may monitor the depth of a queue or watch statistics of a virtualhost or connection. Currently, if another actor in the system causes the object to go away, the UI gives me no clear visual indication that has happened. The queue tab for instance remains open on-screen but nothing actually indicates the object has gone. The counters remain at their last known values. The user may believe the object still exists and this may cause him to take the wrong action.

Internally, the UI continues to periodically poll the objects GET URL, but it receives a 404 and does nothing.

Change the UI to give a clean visual indication the tab no longer refers to a live object