blob: 985b6ce2221f1c47646342a2dee272d5c380ec34 (
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
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
#ifndef QPID_CLIENT_SUBSCRIPTIONMANAGER_H
#define QPID_CLIENT_SUBSCRIPTIONMANAGER_H
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
#include <qpid/client/Dispatcher.h>
#include <qpid/client/Session_0_10.h>
#include <qpid/client/MessageListener.h>
#include <set>
#include <sstream>
namespace qpid {
namespace client {
struct TagNotUniqueException : public qpid::Exception {
TagNotUniqueException() {}
};
class SubscriptionManager
{
std::set<std::string> subscriptions;
qpid::client::Dispatcher dispatcher;
qpid::client::Session_0_10& session;
std::string uniqueTag(const std::string&);
uint32_t messages;
uint32_t bytes;
bool autoStop;
public:
SubscriptionManager(Session_0_10& session);
/**
* Subscribe listener to receive messages from queue.
*@param listener Listener object to receive messages.
*@param queue Name of the queue to subscribe to.
*@param tag Unique destination tag for the listener.
* If not specified a unique tag will be generted based on the queue name.
*@return Destination tag.
*@exception TagNotUniqueException if there is already a subscription
* with the same tag.
*/
std::string subscribe(MessageListener& listener,
const std::string& queue,
const std::string& tag=std::string());
/** Cancel a subscription. */
void cancel(const std::string tag);
qpid::client::Dispatcher& getDispatcher() { return dispatcher; }
size_t size() { return subscriptions.size(); }
/** Deliver messages until stop() is called.
*@param autoStop If true, return when all subscriptions are cancelled.
*/
void run(bool autoStop=true);
/** Cause run() to return */
void stop();
static const uint32_t UNLIMITED=0xFFFFFFFF;
/** Set the flow control limits for subscriber with tag.
* UNLIMITED means no limit.
*/
void flowLimits(const std::string& tag, uint32_t messages, uint32_t bytes);
/** Set the initial flow control limits for new subscribers */
void flowLimits(uint32_t messages, uint32_t bytes);
};
}} // namespace qpid::client
#endif /*!QPID_CLIENT_SUBSCRIPTIONMANAGER_H*/
|
