OpenSimMirror/OpenGridServices/OpenGrid.Framework.Data.DB4o/DB4oManager.cs

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/*
2007-06-05 20:22:10 +00:00
* Copyright (c) OpenSim project, http://www.openmetaverse.org/
*
* 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 the <organization> 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 DEVELOPERS ``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 <copyright holder> 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.
*
*/
using System;
using System.Collections.Generic;
using System.Text;
using Db4objects.Db4o;
using OpenGrid.Framework.Data;
using libsecondlife;
namespace OpenGrid.Framework.Data.DB4o
{
/// <summary>
/// A Database manager for Db4o
/// </summary>
class DB4oGridManager
{
/// <summary>
/// A list of the current regions connected (in-memory cache)
/// </summary>
public Dictionary<LLUUID, SimProfileData> simProfiles = new Dictionary<LLUUID, SimProfileData>();
/// <summary>
/// Database File Name
/// </summary>
string dbfl;
/// <summary>
/// Creates a new grid storage manager
/// </summary>
/// <param name="db4odb">Filename to the database file</param>
public DB4oGridManager(string db4odb)
{
dbfl = db4odb;
IObjectContainer database;
database = Db4oFactory.OpenFile(dbfl);
IObjectSet result = database.Get(typeof(SimProfileData));
// Loads the file into the in-memory cache
foreach(SimProfileData row in result) {
simProfiles.Add(row.UUID, row);
}
database.Close();
}
/// <summary>
/// Adds a new profile to the database (Warning: Probably slow.)
/// </summary>
/// <param name="row">The profile to add</param>
/// <returns>Successful?</returns>
public bool AddRow(SimProfileData row)
{
if (simProfiles.ContainsKey(row.UUID))
{
simProfiles[row.UUID] = row;
}
else
{
simProfiles.Add(row.UUID, row);
}
try
{
IObjectContainer database;
database = Db4oFactory.OpenFile(dbfl);
database.Set(row);
database.Close();
return true;
}
catch (Exception e)
{
return false;
}
}
}
/// <summary>
/// A manager for the DB4o database (user profiles)
/// </summary>
class DB4oUserManager
{
/// <summary>
/// A list of the user profiles (in memory cache)
/// </summary>
public Dictionary<LLUUID, UserProfileData> userProfiles = new Dictionary<LLUUID, UserProfileData>();
/// <summary>
/// Database filename
/// </summary>
string dbfl;
/// <summary>
/// Initialises a new DB manager
/// </summary>
/// <param name="db4odb">The filename to the database</param>
public DB4oUserManager(string db4odb)
{
dbfl = db4odb;
IObjectContainer database;
database = Db4oFactory.OpenFile(dbfl);
// Load to cache
IObjectSet result = database.Get(typeof(UserProfileData));
foreach (UserProfileData row in result)
{
userProfiles.Add(row.UUID, row);
}
database.Close();
}
/// <summary>
/// Adds a new profile to the database (Warning: Probably slow.)
/// </summary>
/// <param name="row">The profile to add</param>
/// <returns>Successful?</returns>
public bool AddRow(UserProfileData row)
{
if (userProfiles.ContainsKey(row.UUID))
{
userProfiles[row.UUID] = row;
}
else
{
userProfiles.Add(row.UUID, row);
}
try
{
IObjectContainer database;
database = Db4oFactory.OpenFile(dbfl);
database.Set(row);
database.Close();
return true;
}
catch (Exception e)
{
return false;
}
}
}
}