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// **********************************************************************
//
// 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.
//
// **********************************************************************
#include <IceUtil/IceUtil.h>
#include <Ice/Ice.h>
#include <IceGrid/IceGrid.h>
#include <Hello.h>
using namespace std;
using namespace Demo;
class SessionKeepAliveThread : public IceUtil::Thread, public IceUtil::Monitor<IceUtil::Mutex>
{
public:
SessionKeepAliveThread(const IceGrid::SessionPrx& session, long timeout) :
_session(session),
_timeout(IceUtil::Time::seconds(timeout)),
_destroy(false)
{
}
virtual void
run()
{
Lock sync(*this);
while(!_destroy)
{
timedWait(_timeout);
if(_destroy)
{
break;
}
try
{
_session->keepAlive();
}
catch(const Ice::Exception&)
{
break;
}
}
}
void
destroy()
{
Lock sync(*this);
_destroy = true;
notify();
}
private:
const IceGrid::SessionPrx _session;
const IceUtil::Time _timeout;
bool _destroy;
};
typedef IceUtil::Handle<SessionKeepAliveThread> SessionKeepAliveThreadPtr;
class HelloClient : public Ice::Application
{
public:
HelloClient();
virtual int run(int, char*[]);
private:
void cleanup();
void menu();
string trim(const string&);
};
int
main(int argc, char* argv[])
{
HelloClient app;
return app.main(argc, argv, "config.client");
}
HelloClient::HelloClient() :
//
// Since this is an interactive demo we don't want any signal
// handling.
//
Ice::Application(Ice::NoSignalHandling)
{
}
int
HelloClient::run(int argc, char* argv[])
{
if(argc > 1)
{
cerr << appName() << ": too many arguments" << endl;
return EXIT_FAILURE;
}
int status = EXIT_SUCCESS;
IceGrid::RegistryPrx registry = IceGrid::RegistryPrx::checkedCast(
communicator()->stringToProxy("DemoIceGrid/Registry"));
if(!registry)
{
cerr << argv[0] << ": could not contact registry" << endl;
return EXIT_FAILURE;
}
IceGrid::SessionPrx session;
while(true)
{
cout << "This demo accepts any user-id / password combination.\n";
string id;
cout << "user id: " << flush;
getline(cin, id);
id = trim(id);
string password;
cout << "password: " << flush;
getline(cin, password);
password = trim(password);
try
{
session = registry->createSession(id, password);
break;
}
catch(const IceGrid::PermissionDeniedException& ex)
{
cout << "permission denied:\n" << ex.reason << endl;
}
}
SessionKeepAliveThreadPtr keepAlive = new SessionKeepAliveThread(session, registry->getSessionTimeout() / 2);
keepAlive->start();
try
{
//
// First try to retrieve object by identity, which will work
// if the application-single.xml descriptor is used. Otherwise
// we retrieve object by type, which will succeed if the
// application-multiple.xml descriptor is used.
//
HelloPrx hello;
try
{
hello = HelloPrx::checkedCast(session->allocateObjectById(communicator()->stringToIdentity("hello")));
}
catch(const IceGrid::ObjectNotRegisteredException&)
{
hello = HelloPrx::checkedCast(session->allocateObjectByType("::Demo::Hello"));
}
menu();
char c;
do
{
try
{
cout << "==> ";
cin >> c;
if(c == 't')
{
hello->sayHello();
}
else if(c == 's')
{
hello->shutdown();
}
else if(c == 'x')
{
// Nothing to do
}
else if(c == '?')
{
menu();
}
else
{
cout << "unknown command `" << c << "'" << endl;
menu();
}
}
catch(const Ice::Exception& ex)
{
cerr << ex << endl;
}
}
while(cin.good() && c != 'x');
}
catch(const IceGrid::AllocationException& ex)
{
cerr << argv[0] << ": could not allocate object: " << ex.reason << endl;
status = EXIT_FAILURE;
}
catch(...)
{
cerr << "unexpected exception" << endl;
status = EXIT_FAILURE;
}
//
// Destroy the keepAlive thread and the sesion object otherwise
// the session will be kept allocated until the timeout occurs.
// Destroying the session will release all allocated objects.
//
keepAlive->destroy();
keepAlive->getThreadControl().join();
session->destroy();
return status;
}
void
HelloClient::menu()
{
cout <<
"usage:\n"
"t: send greeting\n"
"s: shutdown server\n"
"x: exit\n"
"?: help\n";
}
string
HelloClient::trim(const string& s)
{
static const string delims = "\t\r\n ";
string::size_type last = s.find_last_not_of(delims);
if(last != string::npos)
{
return s.substr(s.find_first_not_of(delims), last+1);
}
return s;
}
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