summaryrefslogtreecommitdiff
path: root/java/src/IceInternal/RetryTask.java
blob: b847dc69f3356a772d87147c4fddee7dbc8954d0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
// **********************************************************************
//
// Copyright (c) 2003-2014 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************

package IceInternal;

class RetryTask implements Runnable, CancellationHandler
{
    RetryTask(RetryQueue queue, ProxyOutgoingAsyncBase outAsync)
    {
        _queue = queue;
        _outAsync = outAsync;
    }

    @Override
    public void run()
    {
        _outAsync.retry();
        
        //
        // NOTE: this must be called last, destroy() blocks until all task
        // are removed to prevent the client thread pool to be destroyed
        // (we still need the client thread pool at this point to call
        // exception callbacks with CommunicatorDestroyedException).
        //
        _queue.remove(this);
    }

    @Override
    public void asyncRequestCanceled(OutgoingAsyncBase outAsync, Ice.LocalException ex)
    {
        if(_queue.remove(this) && _future.cancel(false))
        {
            if(_outAsync.completed(ex))
            {
                _outAsync.invokeCompletedAsync();
            }
        }
    }

    public boolean destroy()
    {
        if(_future.cancel(false))
        {
            try
            {
                _outAsync.abort(new Ice.CommunicatorDestroyedException());
            }
            catch(Ice.CommunicatorDestroyedException ex)
            {
                // Abort can throw if there's no callback, just ignore in this case
            }
            return true;
        }
        return false;
    }

    public void setFuture(java.util.concurrent.Future<?> future)
    {
        _future = future;
    }

    private final RetryQueue _queue;
    private final ProxyOutgoingAsyncBase _outAsync;
    private java.util.concurrent.Future<?> _future;
}