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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.Collections.Generic;
using System.Reflection;
using log4net;
using Mono.Addins;
using OpenSim;
using OpenSim.Region.Framework.Interfaces;
using OpenSim.Region.Framework.Scenes;
namespace OpenSim.ApplicationPlugins.RegionModulesController
{
public class RegionModulesControllerPlugin : IRegionModulesController, IApplicationPlugin
{
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
private OpenSimBase m_openSim; // for getting the config
private string m_name;
private List<Type> m_nonSharedModules = new List<Type>();
private List<Type> m_sharedModules = new List<Type>();
private List<ISharedRegionModule> m_sharedInstances = new List<ISharedRegionModule>();
#region IApplicationPlugin implementation
public void Initialise (OpenSimBase openSim)
{
m_log.DebugFormat("[REGIONMODULES]: Initializing...");
m_openSim = openSim;
openSim.ApplicationRegistry.RegisterInterface<IRegionModulesController>(this);
string id = AddinManager.CurrentAddin.Id;
int pos = id.LastIndexOf(".");
if (pos == -1) m_name = id;
else m_name = id.Substring(pos + 1);
//ExtensionNodeList list = AddinManager.GetExtensionNodes("/OpenSim/RegionModules");
// load all the (new) region-module classes
foreach (TypeExtensionNode node in AddinManager.GetExtensionNodes("/OpenSim/RegionModules"))
{
// TODO why does node.Type.isSubclassOf(typeof(ISharedRegionModule)) not work?
if (node.Type.GetInterface(typeof(ISharedRegionModule).ToString()) != null)
{
m_log.DebugFormat("[REGIONMODULES]: Found shared region module {0}, class {1}", node.Id, node.Type);
m_sharedModules.Add(node.Type);
}
else if (node.Type.GetInterface(typeof(INonSharedRegionModule).ToString()) != null)
{
m_log.DebugFormat("[REGIONMODULES]: Found non-shared region module {0}, class {1}", node.Id, node.Type);
m_nonSharedModules.Add(node.Type);
}
else
m_log.DebugFormat("[REGIONMODULES]: Found unknown type of module {0}, class {1}", node.Id, node.Type);
}
// now we've got all the region-module classes loaded, create one instance of every ISharedRegionModule,
// initialize and postinitialize it. This Initialise we are in is called before LoadRegion.PostInitialise
// is called (which loads the regions), so we don't have any regions in the server yet.
foreach (Type type in m_sharedModules)
{
ISharedRegionModule module = (ISharedRegionModule)Activator.CreateInstance(type);
m_sharedInstances.Add(module);
module.Initialise(openSim.ConfigSource.Source);
}
foreach (ISharedRegionModule module in m_sharedInstances)
{
module.PostInitialise();
}
}
public void PostInitialise ()
{
}
#endregion
#region IPlugin implementation
public void Initialise ()
{
throw new System.NotImplementedException();
}
#endregion
#region IDisposable implementation
public void Dispose ()
{
// we expect that all regions have been removed already
while (m_sharedInstances.Count > 0)
{
m_sharedInstances[0].Close();
m_sharedInstances.RemoveAt(0);
}
m_sharedModules.Clear();
m_nonSharedModules.Clear();
}
#endregion
public string Version
{
get
{
return AddinManager.CurrentAddin.Version;
}
}
public string Name
{
get
{
return m_name;
}
}
#region IRegionModulesController implementation
public void AddRegionToModules (Scene scene)
{
foreach (ISharedRegionModule module in m_sharedInstances)
{
m_log.DebugFormat("[REGIONMODULE]: Adding scene {0} to shared module {1}",
scene.RegionInfo.RegionName, module.Name);
module.AddRegion(scene);
scene.AddRegionModule(module.Name, module);
}
List<INonSharedRegionModule> list = new List<INonSharedRegionModule>();
foreach (Type type in m_nonSharedModules)
{
INonSharedRegionModule module = (INonSharedRegionModule)Activator.CreateInstance(type);
m_log.DebugFormat("[REGIONMODULE]: Adding scene {0} to non-shared module {1}",
scene.RegionInfo.RegionName, module.Name);
module.Initialise(m_openSim.ConfigSource.Source);
list.Add(module);
}
foreach (INonSharedRegionModule module in list)
{
module.AddRegion(scene);
scene.AddRegionModule(module.Name, module);
}
// This is needed for all module types. Modules will register
// Interfaces with scene in AddScene, and will also need a means
// to access interfaces registered by other modules. Without
// this extra method, a module attempting to use another modules's
// interface would be successful only depending on load order,
// which can't be depended upon, or modules would need to resort
// to ugly kludges to attempt to request interfaces when needed
// and unneccessary caching logic repeated in all modules.
// The extra function stub is just that much cleaner
//
foreach (ISharedRegionModule module in m_sharedInstances)
{
module.RegionLoaded(scene);
}
foreach (INonSharedRegionModule module in list)
{
module.RegionLoaded(scene);
}
}
public void RemoveRegionFromModules (Scene scene)
{
foreach (IRegionModuleBase module in scene.RegionModules.Values)
{
m_log.DebugFormat("[REGIONMODULE]: Removing scene {0} from module {1}",
scene.RegionInfo.RegionName, module.Name);
module.RemoveRegion(scene);
if (module is INonSharedRegionModule)
{
// as we were the only user, this instance has to die
module.Close();
}
}
scene.RegionModules.Clear();
}
#endregion
}
}
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