/**
* Convenience utility: creates a "session fail" retry loop calling the given proc
*
* @param client Zookeeper
* @param mode how to handle session failures
* @param proc procedure to call with retry
* @param <T> return type
* @return procedure result
* @throws Exception any non-retriable errors
*/
public static T callWithRetry <T>(CuratorZookeeperClient client, Mode mode, ICallable <T> proc)
{
T result = default(T);
SessionFailRetryLoop retryLoop = client.newSessionFailRetryLoop(mode);
retryLoop.start();
try
{
while (retryLoop.shouldContinue())
{
try
{
result = proc.call();
}
catch (Exception e)
{
ThreadUtils.checkInterrupted(e);
retryLoop.takeException(e);
}
}
}
finally
{
retryLoop.Dispose();
}
return(result);
}
internal ZooKeeper getZooKeeper()
{
if (SessionFailRetryLoop.sessionForThreadHasFailed())
{
throw new SessionFailRetryLoop.SessionFailedException();
}
Exception exception;
backgroundExceptions.TryDequeue(out exception);
if (exception != null)
{
tracer.Get().addCount("background-exceptions", 1);
throw exception;
}
bool localIsConnected = _isConnected.get();
if (!localIsConnected)
{
checkTimeouts();
}
return(zooKeeper.getZooKeeper());
}
public SessionFailWatcher(SessionFailRetryLoop retryLoop)
{
_retryLoop = retryLoop;
}
