// Copyright 2010, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Session manager of Mozc server.
#ifndef MOZC_SESSION_SESSION_HANDLER_H_
#define MOZC_SESSION_SESSION_HANDLER_H_
#include <map>
#include <string>
#include <utility>
#include "base/base.h"
#include "session/common.h"
#include "storage/lru_cache.h"
namespace mozc {
class SessionWatchDog;
class Stopwatch;
namespace commands {
class Command;
}
namespace keymap {
class KeyMapManager;
}
namespace composer {
class Table;
}
namespace session {
class SessionObserverHandler;
class SessionObserverInterface;
}
class Session;
class ConverterInterface;
class SessionHandler {
public:
SessionHandler();
virtual ~SessionHandler();
// return true if SessionHandle is available
bool IsAvailable() const;
bool EvalCommand(commands::Command *command);
// start watch dog timer to cleanup sessions
bool StartWatchDog();
// NewSession returns new Sessoin.
// Client needs to delete it properly
Session *NewSession();
void AddObserver(session::SessionObserverInterface *observer);
private:
// Reload settings which are managed by SessionHandler
void ReloadSession();
bool CreateSession(commands::Command *command);
bool DeleteSession(commands::Command *command);
bool TestSendKey(commands::Command *command);
bool SendKey(commands::Command *command);
bool SendCommand(commands::Command *command);
bool SyncData(commands::Command *command);
bool ClearUserHistory(commands::Command *command);
bool ClearUserPrediction(commands::Command *command);
bool ClearUnusedUserPrediction(commands::Command *command);
bool Shutdown(commands::Command *command);
bool Reload(commands::Command *command);
bool GetConfig(commands::Command *command);
bool SetConfig(commands::Command *command);
bool Cleanup(commands::Command *command);
bool NoOperation(commands::Command *command);
SessionID CreateNewSessionID();
bool DeleteSessionID(SessionID id);
scoped_ptr<composer::Table> preedit_table_;
typedef LRUCache<SessionID, Session*> SessionMap;
typedef LRUCache<SessionID, Session*>::Element SessionElement;
scoped_ptr<SessionMap> session_map_;
scoped_ptr<keymap::KeyMapManager> keymap_;
scoped_ptr<SessionWatchDog> session_watch_dog_;
ConverterInterface *converter_;
bool is_available_;
int keyevent_counter_;
uint32 max_session_size_;
uint64 last_session_empty_time_;
uint64 last_cleanup_time_;
uint64 last_create_session_time_;
scoped_ptr<session::SessionObserverHandler> observer_handler_;
scoped_ptr<Stopwatch> stopwatch_;
DISALLOW_COPY_AND_ASSIGN(SessionHandler);
};
} // namespace mozc
#endif // MOZC_SESSION_SESSION_HANDLER_H_