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/* ------------------------------------------------------------------------ */
/* Copyright 2002-2012, OpenNebula Project Leads (OpenNebula.org) */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); you may */
/* not use this file except in compliance with the License. You may obtain */
/* a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
/* See the License for the specific language governing permissions and */
/* limitations under the License. */
/* -------------------------------------------------------------------------*/
#ifndef GROUP_H_
#define GROUP_H_
#include "PoolSQL.h"
#include "ObjectCollection.h"
#include "User.h"
using namespace std;
/**
* The Group class.
*/
class Group : public PoolObjectSQL, ObjectCollection
{
public:
/**
* Function to print the Group object into a string in XML format
* @param xml the resulting XML string
* @return a reference to the generated string
*/
string& to_xml(string& xml) const;
/**
* Rebuilds the object from an xml formatted string
* @param xml_str The xml-formatted string
*
* @return 0 on success, -1 otherwise
*/
int from_xml(const string &xml_str);
/**
* Adds this user's ID to the set.
* @param id of the user to be added to the group
* @return 0 on success
*/
int add_user(int id)
{
return add_collection_id(id);
}
/**
* Deletes this users's ID from the set.
* @param id of the user to be deleted from the group
* @return 0 on success
*/
int del_user(int id)
{
return del_collection_id(id);
}
private:
// -------------------------------------------------------------------------
// Friends
// -------------------------------------------------------------------------
friend class GroupPool;
// *************************************************************************
// Constructor
// *************************************************************************
Group(int id, const string& name):
PoolObjectSQL(id,GROUP,name,-1,-1,"","",table),
ObjectCollection("USERS")
{
// Allow users in this group to see it
group_u = 1;
};
virtual ~Group(){};
// *************************************************************************
// DataBase implementation (Private)
// *************************************************************************
static const char * db_names;
static const char * db_bootstrap;
static const char * table;
/**
* Execute an INSERT or REPLACE Sql query.
* @param db The SQL DB
* @param replace Execute an INSERT or a REPLACE
* @param error_str Returns the error reason, if any
* @return 0 one success
*/
int insert_replace(SqlDB *db, bool replace, string& error_str);
/**
* Bootstraps the database table(s) associated to the Group
* @return 0 on success
*/
static int bootstrap(SqlDB * db)
{
ostringstream oss(Group::db_bootstrap);
return db->exec(oss);
};
/**
* Writes the Group in the database.
* @param db pointer to the db
* @return 0 on success
*/
int insert(SqlDB *db, string& error_str)
{
return insert_replace(db, false, error_str);
}
/**
* Writes/updates the Group's data fields in the database.
* @param db pointer to the db
* @return 0 on success
*/
int update(SqlDB *db)
{
string error_str;
return insert_replace(db, true, error_str);
}
};
#endif /*GROUP_H_*/
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