Added IceGrid allocate demo

1 files changed, 233 insertions, 0 deletions

diff --git a/cpp/demo/IceGrid/allocate/Client.cpp b/cpp/demo/IceGrid/allocate/Client.cpp
new file mode 100644
index 00000000000..2ab00a07b9c
--- /dev/null
+++ b/cpp/demo/IceGrid/allocate/Client.cpp
@@ -0,0 +1,233 @@
+// **********************************************************************
+//
+// Copyright (c) 2003-2006 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 <Ice/Ice.h>
+#include <IceGrid/Registry.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) :
+	_session(session),
+        _timeout(IceUtil::Time::seconds(5)),
+        _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:
+
+    IceGrid::SessionPrx _session;
+    const IceUtil::Time _timeout;
+    bool _destroy;
+};
+
+typedef IceUtil::Handle<SessionKeepAliveThread> SessionKeepAliveThreadPtr;
+
+class HelloClient : public Ice::Application
+{
+public:
+
+    virtual int run(int, char*[]);
+
+private:
+
+    void menu();
+    string trim(const string&);
+};
+
+int
+main(int argc, char* argv[])
+{
+    HelloClient app;
+    return app.main(argc, argv, "config.client");
+}
+
+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;
+}
+
+int
+HelloClient::run(int argc, char* argv[])
+{
+    IceGrid::RegistryPrx registry = 
+	IceGrid::RegistryPrx::checkedCast(communicator()->stringToProxy("DemoIceGrid/Registry"));
+    if(!registry)
+    {
+        cerr << argv[0] << ": cound 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);
+    keepAlive->start();
+
+    //
+    // 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::AllocationException& ex)
+    {
+    }
+    catch(const IceGrid::ObjectNotRegisteredException&)
+    {
+    }
+    if(!hello)
+    {
+        try
+        {
+            hello = HelloPrx::checkedCast(session->allocateObjectByType("::Demo::Hello"));
+        }
+        catch(const IceGrid::AllocationException& ex)
+        {
+	    cerr << argv[0] << ": could not allocate object: " << ex.reason << endl;
+	    return EXIT_FAILURE;
+        }
+        catch(const IceGrid::ObjectNotRegisteredException&)
+        {
+	    cerr << argv[0] << ": object not registered with registry" << endl;
+	    return EXIT_FAILURE;
+        }
+    }
+
+    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;
+
+	    keepAlive->destroy();
+	    keepAlive->getThreadControl().join();
+
+	    return EXIT_FAILURE;
+	}
+    }
+    while(cin.good() && c != 'x');
+
+    keepAlive->destroy();
+    keepAlive->getThreadControl().join();
+
+    session->releaseObject(hello->ice_getIdentity());
+    session->destroy();
+
+    return EXIT_SUCCESS;
+}