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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 System.Text;
using OpenMetaverse;
using OpenSim.Region.ScriptEngine.Interfaces;
using OpenSim.Region.ScriptEngine.Shared.ScriptBase;
using OpenSim.ScriptEngine.Shared;
namespace OpenSim.ScriptEngine.Shared
{
public struct ScriptStructure
{
public RegionInfoStructure RegionInfo;
public ScriptMetaData ScriptMetaData;
public ScriptAssemblies.IScript ScriptObject;
public string State;
public bool Running;
public bool Disabled;
public string Source;
public int StartParam;
public AppDomain AppDomain;
public Dictionary<string, IScriptApi> Apis;
public Dictionary<KeyValuePair<int, int>, KeyValuePair<int, int>> LineMap;
public uint LocalID;
public UUID ItemID;
public string AssemblyFileName;
public string ScriptID { get { return LocalID.ToString() + "." + ItemID.ToString(); } }
public string Name { get { return "Script:" + ScriptID; } }
private bool Initialized;
private Dictionary<string, Delegate> InternalFunctions;
public string AssemblyName;
public void ExecuteEvent(EventParams p)
{
ExecuteMethod(p, true);
}
public void ExecuteMethod(EventParams p)
{
ExecuteMethod(p, false);
}
private void ExecuteMethod(EventParams p, bool isEvent)
{
// First time initialization?
if (!Initialized)
{
Initialized = true;
CacheInternalFunctions();
}
lock (InternalFunctions)
{
// Make function name
string FunctionName;
if (isEvent)
FunctionName = State + "_event_" + p.EventName;
else
FunctionName = p.EventName;
// Check if this function exist
if (!InternalFunctions.ContainsKey(FunctionName))
{
// TODO: Send message in-world
//RegionInfo.Scene.
RegionInfo.Logger.ErrorFormat("[{0}] Script function \"{1}\" was not found.", Name, FunctionName);
return;
}
// Execute script function
try
{
InternalFunctions[FunctionName].DynamicInvoke(p.Params);
}
catch (Exception e)
{
RegionInfo.Logger.ErrorFormat("[{0}] Execute \"{1}\" failed: {2}", Name, FunctionName, e.ToString());
}
}
}
/// <summary>
/// Cache functions into a dictionary with delegates. Should be faster than reflection.
/// </summary>
private void CacheInternalFunctions()
{
Type scriptObjectType = ScriptObject.GetType();
InternalFunctions = new Dictionary<string, Delegate>();
MethodInfo[] methods = scriptObjectType.GetMethods();
lock (InternalFunctions)
{
// Read all methods into a dictionary
foreach (MethodInfo mi in methods)
{
// TODO: We don't support overloading
if (!InternalFunctions.ContainsKey(mi.Name))
InternalFunctions.Add(mi.Name, Delegate.CreateDelegate(scriptObjectType, ScriptObject, mi));
else
RegionInfo.Logger.ErrorFormat("[{0}] Error: Script function \"{1}\" is already added. We do not support overloading.",
Name, mi.Name);
}
}
}
}
}
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