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/*
* Copyright (c) Contributors, http://opensimulator.org/
* See CONTRIBUTORS.TXT for a full list of copyright holders.
*
* 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 OpenSimulator Project 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 THE 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.
*/
using System;
using System.Reflection;
using log4net;
using Nini.Config;
using OpenSim.Framework;
using OpenSim.Data;
using OpenSim.Server.Base;
using OpenSim.Services.Interfaces;
using OpenSim.Services.Base;
namespace OpenSim.Services.AssetService
{
public class XAssetServiceBase : ServiceBase
{
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
protected IXAssetDataPlugin m_Database;
protected IAssetLoader m_AssetLoader;
protected IAssetService m_ChainedAssetService;
protected bool HasChainedAssetService { get { return m_ChainedAssetService != null; } }
public XAssetServiceBase(IConfigSource config, string configName) : base(config)
{
string dllName = String.Empty;
string connString = String.Empty;
//
// Try reading the [AssetService] section first, if it exists
//
IConfig assetConfig = config.Configs[configName];
if (assetConfig != null)
{
dllName = assetConfig.GetString("StorageProvider", dllName);
connString = assetConfig.GetString("ConnectionString", connString);
}
//
// Try reading the [DatabaseService] section, if it exists
//
IConfig dbConfig = config.Configs["DatabaseService"];
if (dbConfig != null)
{
if (dllName == String.Empty)
dllName = dbConfig.GetString("StorageProvider", String.Empty);
if (connString == String.Empty)
connString = dbConfig.GetString("ConnectionString", String.Empty);
}
//
// We tried, but this doesn't exist. We can't proceed.
//
if (dllName.Equals(String.Empty))
throw new Exception("No StorageProvider configured");
m_Database = LoadPlugin<IXAssetDataPlugin>(dllName);
if (m_Database == null)
throw new Exception("Could not find a storage interface in the given module");
string chainedAssetServiceDesignator = assetConfig.GetString("ChainedServiceModule", null);
if (chainedAssetServiceDesignator != null)
{
m_log.InfoFormat(
"[XASSET SERVICE BASE]: Loading chained asset service from {0}", chainedAssetServiceDesignator);
Object[] args = new Object[] { config, configName };
m_ChainedAssetService = ServerUtils.LoadPlugin<IAssetService>(chainedAssetServiceDesignator, args);
if (!HasChainedAssetService)
throw new Exception(
String.Format("Failed to load ChainedAssetService from {0}", chainedAssetServiceDesignator));
}
m_Database.Initialise(connString);
if (HasChainedAssetService)
{
string loaderName = assetConfig.GetString("DefaultAssetLoader",
String.Empty);
if (loaderName != String.Empty)
{
m_AssetLoader = LoadPlugin<IAssetLoader>(loaderName);
if (m_AssetLoader == null)
throw new Exception("Asset loader could not be loaded");
}
}
}
}
}
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