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/*
* Copyright 2005-2010 Fabrice Colin
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _ACTION_QUEUE_H
#define _ACTION_QUEUE_H
#include <time.h>
#include <string>
#include "DocumentInfo.h"
#include "SQLiteBase.h"
/// Handles the ActionQueue table.
class ActionQueue : public SQLiteBase
{
public:
ActionQueue(const std::string &database, const std::string queueId);
virtual ~ActionQueue();
/// Creates the ActionQueue table in the database.
static bool create(const std::string &database);
typedef enum { INDEX = 0, UNINDEX } ActionType;
/// Pushes an item.
bool pushItem(ActionType type, const DocumentInfo &docInfo);
/// Pops and deletes the oldest item.
bool popItem(ActionType &type, DocumentInfo &docInfo);
/// Returns the number of items of a particular type.
unsigned int getItemsCount(ActionType type);
/// Deletes all items under a given URL.
bool deleteItems(const std::string &url);
/// Expires items older than the given date.
bool expireItems(time_t expiryDate);
protected:
std::string m_queueId;
bool getOldestItem(ActionType &type, DocumentInfo &docInfo);
static std::string typeToText(ActionType type);
static ActionType textToType(const std::string &text);
private:
ActionQueue(const ActionQueue &other);
ActionQueue &operator=(const ActionQueue &other);
};
#endif // _ACTION_QUEUE_H
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