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https://issues.apache.org/jira/browse/DIRMINA-912?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Emmanuel Lecharny updated DIRMINA-912:
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Fix Version/s: 2.0.8
> Different instances of OrderedThreadPoolExecutor may use same task queue
> ------------------------------------------------------------------------
>
> Key: DIRMINA-912
> URL: https://issues.apache.org/jira/browse/DIRMINA-912
> Project: MINA
> Issue Type: Bug
> Reporter: Anton Sitnikov
> Priority: Minor
> Fix For: 2.0.8
>
>
> If two ExecutionFilter's with default executors are placed in filter chain,
> for example to separate inbound and outbound events processing, both
> ExecutorFilters will use same task queue.
> {code}
> acceptor.getFilterChain().addLast("inboundExecutor",
> new ExecutorFilter(IoEventType.MESSAGE_RECEIVED,
> IoEventType.SESSION_OPENED, IoEventType.SESSION_CLOSED,
> IoEventType.MESSAGE_SENT));
> acceptor.getFilterChain().addLast("codec", new SomeCodecFilter());
> acceptor.getFilterChain().addLast("outboundExecutor",
> new ExecutorFilter(IoEventType.CLOSE, IoEventType.WRITE));
> {code}
> OrderedThreadPoolExecutor uses TASKS_QUEUE key to get task queue from session
> attributes. TASKS_QUEUE behaves such way that different
> OrderedThreadPoolExecutor's refer to the same task queue stored in session
> attributes.
> private final AttributeKey TASKS_QUEUE = new AttributeKey(getClass(),
> "tasksQueue");
> I'm not sure if it's OrderedThreadPoolExecutor or AttributeKey bug.
> As a result only one ExecutorFilter processes task originating from both
> ExecutorFilters.
> Workaround is to inherit Executor classes from OrderedThreadPoolExecutor and
> pass its instances to ExecutorFilter constructor, e.g.:
> {code}
> class InboundExecutor extends OrderedThreadPoolExecutor {
> }
> class OutboundExecutor extends OrderedThreadPoolExecutor {
> }
> acceptor.getFilterChain().addLast("inboundExecutor",
> new ExecutorFilter(new InvoundExecutor(),
> IoEventType.MESSAGE_RECEIVED, IoEventType.SESSION_OPENED,
> IoEventType.SESSION_CLOSED, IoEventType.MESSAGE_SENT));
> acceptor.getFilterChain().addLast("outboundExecutor",
> new ExecutorFilter(new OuboundExecutor(), IoEventType.CLOSE,
> IoEventType.WRITE));
> {code}
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