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
94
95
96
97
98
99
100
101
102
103
104
105
|
// **********************************************************************
//
// Copyright (c) 2001
// MutableRealms, Inc.
// Huntsville, AL, USA
//
// All Rights Reserved
//
// **********************************************************************
#include <Ice/Ice.h>
#include <IceStorm/IceStorm.h>
#include <ClockI.h>
using namespace std;
int
run(int argc, char* argv[], const Ice::CommunicatorPtr& communicator)
{
Ice::PropertiesPtr properties = communicator->getProperties();
const char* refProperty = "IceStorm.TopicManager";
std::string ref = properties->getProperty(refProperty);
if (ref.empty())
{
cerr << argv[0] << ": property `" << refProperty << "' not set" << endl;
return EXIT_FAILURE;
}
Ice::ObjectPrx base = communicator->stringToProxy(ref);
IceStorm::TopicManagerPrx manager = IceStorm::TopicManagerPrx::checkedCast(base);
if (!manager)
{
cerr << argv[0] << ": invalid object reference" << endl;
return EXIT_FAILURE;
}
Ice::ObjectAdapterPtr adapter = communicator->createObjectAdapterWithEndpoints("ClockAdapter", "tcp");
Ice::ObjectPtr clock = new ClockI();
const char* id = "events#time";
adapter->add(clock, id);
Ice::ObjectPrx object = adapter->createProxy(id);
//
// The set of topics to which to subscribe
//
IceStorm::StringSeq topics;
topics.push_back("time");
//
// The requested quality of service. This requests "reliability" =
// "batch". This asks IceStorm to send events to the subscriber in
// batches at regular intervals.
//
IceStorm::QoS qos;
qos["reliability"] = "batch";
try
{
manager->subscribe("events", qos, topics, object);
}
catch(const IceStorm::NoSuchTopic& e)
{
cerr << argv[0] << ": NoSuchTopic: " << e.name << endl;
return EXIT_FAILURE;
}
adapter->activate();
communicator->waitForShutdown();
return EXIT_SUCCESS;
}
int
main(int argc, char* argv[])
{
int status;
Ice::CommunicatorPtr communicator;
try
{
Ice::PropertiesPtr properties = Ice::createPropertiesFromFile(argc, argv, "config");
communicator = Ice::initializeWithProperties(properties);
status = run(argc, argv, communicator);
}
catch(const Ice::Exception& ex)
{
cerr << ex << endl;
status = EXIT_FAILURE;
}
if (communicator)
{
try
{
communicator->destroy();
}
catch(const Ice::Exception& ex)
{
cerr << ex << endl;
status = EXIT_FAILURE;
}
}
return status;
}
|