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EntityComponentModule.cs
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EntityComponentModule.cs
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using System;
using System.Collections.Generic;
using System.Text;
using OpenSim.Region.Framework.Interfaces;
using OpenSim.Region.Framework.Scenes;
using ModularRex.NHibernate;
using ModularRex.RexNetwork;
using OpenMetaverse;
using OpenSim.Framework;
using ModularRex.RexFramework;
using log4net;
using System.Reflection;
namespace ModularRex.RexParts
{
public delegate bool UpdateECData(object sender, ref ECData data);
public delegate bool RemoveECData(object sender, UUID entityId, string componentType, string componentName);
public class EntityComponentModule : ISharedRegionModule
{
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
protected class Entity
{
public Entity(UUID id)
{
Id = id;
}
public UUID Id;
public Dictionary<KeyValuePair<string, string>, ECData> Components = new Dictionary<KeyValuePair<string, string>, ECData>();
}
private List<Scene> m_scenes = new List<Scene>();
private NHibernateECData m_db;
private string m_db_connectionstring;
private bool m_db_initialized = false;
private Dictionary<UUID, Entity> m_entity_components = new Dictionary<UUID, Entity>();
private Dictionary<string, UpdateECData> m_ec_update_callbacks = new Dictionary<string, UpdateECData>();
private Dictionary<string, RemoveECData> m_ec_remove_callbacks = new Dictionary<string, RemoveECData>();
#region ISharedRegionModule Members
public void PostInitialise()
{
}
#endregion
#region IRegionModuleBase Members
public string Name
{
get { return "EntityComponentModule"; }
}
public Type ReplaceableInterface
{
get { return null; }
}
public void Initialise(Nini.Config.IConfigSource source)
{
//read configuration
try
{
m_db_connectionstring = source.Configs["realXtend"].GetString("db_connectionstring", "SQLiteDialect;SQLite20Driver;Data Source=RexObjects.db;Version=3");
}
catch (Exception)
{
m_db_connectionstring = "SQLiteDialect;SQLite20Driver;Data Source=RexObjects.db;Version=3";
}
if (m_db_connectionstring != "null")
{
m_db = new NHibernateECData();
m_db.Initialise(m_db_connectionstring);
m_db_initialized = true;
}
}
public void Close()
{
}
public void AddRegion(Scene scene)
{
m_scenes.Add(scene);
if (m_db_initialized)
{
foreach (EntityBase eb in scene.Entities)
{
foreach (ECData data in m_db.GetComponents(eb.UUID))
{
SaveLocal(data);
}
}
}
}
public void RemoveRegion(Scene scene)
{
m_scenes.Remove(scene);
scene.EventManager.OnClientConnect -= new EventManager.OnClientConnectCoreDelegate(RegisterGMHandler);
}
public void RegionLoaded(Scene scene)
{
scene.EventManager.OnClientConnect += new EventManager.OnClientConnectCoreDelegate(RegisterGMHandler);
}
#endregion
#region Event handlers
private void RegisterGMHandler(OpenSim.Framework.Client.IClientCore client)
{
NaaliClientView naali;
if (client.TryGet<NaaliClientView>(out naali))
{
naali.OnBinaryGenericMessage += new OpenSim.Region.ClientStack.LindenUDP.LLClientView.BinaryGenericMessage(HandleGenericBinaryMessage);
naali.AddGenericPacketHandler("ecstring", HandleEcStringGenericMessage);
naali.AddGenericPacketHandler("ecremove", HandleEcRemoveGenericMessage);
}
}
private void HandleGenericBinaryMessage(object sender, string method, byte[][] args)
{
UUID entityId;
string componentName;
string componentType;
byte[] data;
switch (method.ToLower())
{
case "ecsync":
if (args.Length >= 4)
{
entityId = new UUID(Util.FieldToString(args[0]));
componentType = Util.FieldToString(args[1]);
componentName = Util.FieldToString(args[2]);
int rpdLen = 0;
int idx = 0;
//calculate array length
for (int i = 3; i < args.Length; i++)
{
rpdLen += args[i].Length;
}
data = new byte[rpdLen];
//copy rest of the arrays to one arrays
for (int i = 3; i < args.Length; i++)
{
args[i].CopyTo(data, idx);
idx += args[i].Length;
}
SaveECData(sender, new ECData(entityId, componentType, componentName, data, false));
}
break;
default:
return;
}
}
private void HandleEcStringGenericMessage(object sender, string method, List<string> args)
{
if (method.ToLower() == "ecstring")
{
if (args.Count >= 4)
{
UUID entityId = new UUID(args[0]);
string componentType = args[1];
string componentName = args[2];
string data = args[3];
ECData component = new ECData(entityId, componentType, componentName, data);
SaveECData(sender, component);
}
}
}
private void HandleEcRemoveGenericMessage(object sender, string method, List<string> args)
{
if (method.ToLower() == "ecremove")
{
if (args.Count >= 3)
{
UUID entityId = new UUID(args[0]);
string componentType = args[1];
string componentName = args[2];
ECData component = new ECData(entityId, componentType, componentName, String.Empty);
RemoveECData(sender, component);
}
}
}
#endregion
private void SaveLocal(ECData component)
{
if (m_entity_components[component.EntityID] == null)
{
m_entity_components[component.EntityID] = new Entity(component.EntityID);
}
m_entity_components[component.EntityID].Components[new KeyValuePair<string, string>(component.ComponentType, component.ComponentName)] = component;
}
public void SendECDataToAll(ECData component)
{
foreach (Scene scene in m_scenes)
{
scene.ForEachClient(
delegate(IClientAPI client)
{
if (client is NaaliClientView)
{
((NaaliClientView)client).SendECData(component);
}
}
);
}
}
public void SendECRemovedToAll(UUID entityId, string componentType, string componentName)
{
List<string> msgArgs = new List<string>();
msgArgs.Add(entityId.ToString());
msgArgs.Add(componentType);
msgArgs.Add(componentName);
foreach (Scene scene in m_scenes)
{
scene.ForEachClient(
delegate(IClientAPI client)
{
if (client is NaaliClientView)
{
((NaaliClientView)client).SendGenericMessage("ecremoved", msgArgs);
}
}
);
}
}
public bool SaveECData(object sender, ECData component)
{
try
{
bool save = true;
if (m_ec_update_callbacks[component.ComponentType] != null)
{
save = m_ec_update_callbacks[component.ComponentType](sender, ref component);
}
if (save)
{
SaveLocal(component);
if (m_db_initialized)
return m_db.StoreComponent(component);
}
return true;
}
catch (Exception e)
{
m_log.ErrorFormat("[ECDATA]: Error saving ECData for component because Exception {0} occurred: {1}", e.Message, e.StackTrace);
return false;
}
}
public bool RemoveECData(object sender, ECData component)
{
try
{
bool remove = true;
if (m_ec_remove_callbacks[component.ComponentType] != null)
{
remove = m_ec_remove_callbacks[component.ComponentType](sender, component.EntityID, component.ComponentType, component.ComponentName);
}
if (remove)
{
if (m_entity_components[component.EntityID] != null)
{
return false;
}
m_entity_components[component.EntityID].Components.Remove(new KeyValuePair<string, string>(component.ComponentType, component.ComponentName));
if (m_db_initialized)
return m_db.RemoveComponent(component);
}
return true;
}
catch (Exception e)
{
m_log.ErrorFormat("[ECDATA]: Error removing ECData because Exception {0} occurred: {1}", e.Message, e.StackTrace);
return false;
}
}
public void RegisterECUpdateCallback(string componentType, UpdateECData callback)
{
m_ec_update_callbacks[componentType] = callback;
}
public void RegisterECRemoveCallback(string componentType, RemoveECData callback)
{
m_ec_remove_callbacks[componentType] = callback;
}
}
}