sample code of using CC API

git-svn-id: svn://bind10.isc.org/svn/bind10/branches/f2f200910@256 e5f2f494-b856-4b98-b285-d166d9295462

src/bin/parkinglot/ccsession.cc

@@ -0,0 +1,62 @@
+// Copyright (C) 2009  Internet Systems Consortium, Inc. ("ISC")
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+// $Id$
+
+#include <stdexcept>
+#include <string.h>
+
+#include <cc/cpp/data.h>
+#include <cc/cpp/session.h>
+
+using std::string;
+
+class SessionManager {
+public:
+    SessionManager();
+private:
+    ISC::CC::Session session_;
+};
+
+SessionManager::SessionManager() :
+    session_(ISC::CC::Session())
+{
+    try {
+        session_.establish();
+        session_.subscribe("ParkingLot");
+        session_.subscribe("Boss");
+    } catch (...) {
+        throw std::runtime_error("SessionManager: failed to open sessions");
+    }
+}
+
+std::pair<string, string>
+getCommand(ISC::CC::Session& session)
+{
+    ISC::Data::ElementPtr ep, routing, data;
+
+    session.group_recvmsg(routing, data, false);
+    ep = data->get("zone_added");
+    if (ep != NULL) {
+        return std::pair<string, string>("zone_added", ep->string_value());
+    }
+    ep = data->get("zone_deleted");
+    if (ep != NULL) {
+        return std::pair<string, string>("zone_deleted", ep->string_value());
+    }
+    ep = data->get("shutdown");
+    if (ep != NULL) {
+        return std::pair<string, string>("shutdown", "");
+    }
+}