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Thank you very much KMeisthax for DataSnapshot 1.1 

to enhance search capability on OpenSim sims using
external search engines such as Metaversink.com and
others.
0.6.0-stable
Charles Krinke 2008-05-17 15:47:08 +00:00
parent 06b1535ec5
commit f6a4f8844f
9 changed files with 786 additions and 327 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
OpenSim/Region/DataSnapshot/DataRequestHandler.cs
View File

@ -26,11 +26,16 @@
* *
*/ */
using System;
using System.Collections; using System.Collections;
using System.Reflection; using System.Reflection;
using System.Xml; using System.Xml;
using log4net; using log4net;
using OpenSim.Region.Environment.Scenes; using OpenSim.Region.Environment.Scenes;
using OpenSim.Framework.Communications.Capabilities;
using Caps = OpenSim.Framework.Communications.Capabilities.Caps;
using libsecondlife;
using OpenSim.Framework.Servers;
namespace OpenSim.Region.DataSnapshot namespace OpenSim.Region.DataSnapshot
{ {
@ -40,18 +45,50 @@ namespace OpenSim.Region.DataSnapshot
private DataSnapshotManager m_externalData = null; private DataSnapshotManager m_externalData = null;
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
private readonly string m_discoveryPath = "DS0001/";
public DataRequestHandler(Scene scene, DataSnapshotManager externalData) public DataRequestHandler(Scene scene, DataSnapshotManager externalData)
{ {
m_scene = scene; m_scene = scene;
m_externalData = externalData; m_externalData = externalData;
//Register HTTP handler
if (m_scene.AddHTTPHandler("collector", OnGetSnapshot)) if (m_scene.AddHTTPHandler("collector", OnGetSnapshot))
{ {
m_log.Info("[DATASNAPSHOT]: Set up snapshot service"); m_log.Info("[DATASNAPSHOT]: Set up snapshot service");
} }
//Register CAPS handler event
m_scene.EventManager.OnRegisterCaps += OnRegisterCaps;
//harbl //harbl
} }
public void OnRegisterCaps(LLUUID agentID, Caps caps)
{
m_log.Info("[DATASNAPSHOT]: Registering service discovery capability for " + agentID);
string capsBase = "/CAPS/" + caps.CapsObjectPath;
caps.RegisterHandler("PublicSnapshotDataInfo",
new RestStreamHandler("POST", capsBase + m_discoveryPath, OnDiscoveryAttempt));
}
public string OnDiscoveryAttempt(string request, string path, string param)
{
//Very static for now, flexible enough to add new formats
LLSDDiscoveryResponse llsd_response = new LLSDDiscoveryResponse();
llsd_response.snapshot_resources = new LLSDArray();
LLSDDiscoveryDataURL llsd_dataurl = new LLSDDiscoveryDataURL();
llsd_dataurl.snapshot_format = "os-datasnapshot-v1";
llsd_dataurl.snapshot_url = "http://" + m_externalData.m_hostname + ":" + m_externalData.m_listener_port + "/?method=collector";
llsd_response.snapshot_resources.Array.Add(llsd_dataurl);
string response = LLSDHelpers.SerialiseLLSDReply(llsd_response);
return response;
}
public Hashtable OnGetSnapshot(Hashtable keysvals) public Hashtable OnGetSnapshot(Hashtable keysvals)
{ {
m_log.Info("[DATASNAPSHOT] Received collection request"); m_log.Info("[DATASNAPSHOT] Received collection request");

451
OpenSim/Region/DataSnapshot/DataSnapshotManager.cs
View File

@ -37,49 +37,62 @@ using System.Xml;
using libsecondlife; using libsecondlife;
using log4net; using log4net;
using Nini.Config; using Nini.Config;
using OpenSim.Framework;
using OpenSim.Framework.Communications; using OpenSim.Framework.Communications;
using OpenSim.Region.DataSnapshot.Interfaces; using OpenSim.Region.DataSnapshot.Interfaces;
using OpenSim.Region.Environment.Interfaces; using OpenSim.Region.Environment.Interfaces;
using OpenSim.Region.Environment.Scenes; using OpenSim.Region.Environment.Scenes;
using libsecondlife.Packets;
namespace OpenSim.Region.DataSnapshot namespace OpenSim.Region.DataSnapshot
{ {
public class DataSnapshotManager : IRegionModule public class DataSnapshotManager : IRegionModule, IDataSnapshot
{ {
#region Class members #region Class members
private List<Scene> m_scenes = new List<Scene>(); //Information from config
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
private bool m_enabled = false; private bool m_enabled = false;
private bool m_configLoaded = false; private bool m_configLoaded = false;
internal object m_syncInit = new object(); private List<String> m_disabledModules = new List<String>();
private DataRequestHandler m_requests = null;
private Dictionary<Scene, List<IDataSnapshotProvider>> m_dataproviders = new Dictionary<Scene, List<IDataSnapshotProvider>>();
private Dictionary<string, string> m_gridinfo = new Dictionary<string, string>(); private Dictionary<string, string> m_gridinfo = new Dictionary<string, string>();
//private int m_oldestSnapshot = 0;
private int m_maxSnapshots = 500;
private int m_lastSnapshot = 0;
private string m_snapsDir = "DataSnapshot"; private string m_snapsDir = "DataSnapshot";
//Lists of stuff we need
private List<Scene> m_scenes = new List<Scene>();
private List<IDataSnapshotProvider> m_dataproviders = new List<IDataSnapshotProvider>();
//Various internal objects
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
internal object m_syncInit = new object();
//DataServices and networking
private string m_dataServices = "noservices"; private string m_dataServices = "noservices";
private string m_listener_port = "9000"; //TODO: Set default port over 9000 public string m_listener_port = "9000"; //TODO: Set default port over 9000
private string m_hostname = "127.0.0.1"; public string m_hostname = "127.0.0.1";
//Update timers
private Timer m_periodic = null; private Timer m_periodic = null;
private int m_period = 60; // in seconds private int m_period = 20; // in seconds
private List<string> m_disabledModules = new List<string>(); private int m_maxStales = 500;
private int m_stales = 0;
private Timer m_passedCheck = null;
private bool m_periodPassed = false;
//Program objects
private SnapshotStore m_snapStore = null;
private DataRequestHandler m_requests = null;
#endregion #endregion
#region IRegionModule #region IRegionModule
public void Close() public void Close()
{ {
m_log.Info("[DATASNAPSHOT]: Close called");
} }
public void Initialise(Scene scene, IConfigSource config) public void Initialise(Scene scene, IConfigSource config)
{ {
if (!m_scenes.Contains(scene)) if (!m_configLoaded) {
m_scenes.Add(scene);
if (!m_configLoaded)
{
m_configLoaded = true; m_configLoaded = true;
m_log.Info("[DATASNAPSHOT]: Loading configuration"); m_log.Info("[DATASNAPSHOT]: Loading configuration");
//Read from the config for options //Read from the config for options
@ -99,49 +112,59 @@ namespace OpenSim.Region.DataSnapshot
//Non gridmode stuff //Non gridmode stuff
} }
m_gridinfo.Add("Name", config.Configs["DataSnapshot"].GetString("gridname", "harbl")); m_gridinfo.Add("Name", config.Configs["DataSnapshot"].GetString("gridname", "harbl"));
m_maxSnapshots = config.Configs["DataSnapshot"].GetInt("max_snapshots", m_maxSnapshots); m_period = config.Configs["DataSnapshot"].GetInt("default_snapshot_period", m_period);
m_period = config.Configs["DataSnapshot"].GetInt("default_snapshot_period", m_period); m_maxStales = config.Configs["DataSnapshot"].GetInt("max_changes_before_update", m_maxStales);
m_snapsDir = config.Configs["DataSnapshot"].GetString("snapshot_cache_directory", m_snapsDir); m_snapsDir = config.Configs["DataSnapshot"].GetString("snapshot_cache_directory", m_snapsDir);
m_dataServices = config.Configs["DataSnapshot"].GetString("data_services", m_dataServices); m_dataServices = config.Configs["DataSnapshot"].GetString("data_services", m_dataServices);
m_listener_port = config.Configs["Network"].GetString("http_listener_port", m_listener_port); m_listener_port = config.Configs["Network"].GetString("http_listener_port", m_listener_port);
//BUG: Naming a search data module "DESUDESUDESU" will cause it to not get loaded by default.
//RESOLUTION: Wontfix, there are no Suiseiseki-loving developers String[] annoying_string_array = config.Configs["DataSnapshot"].GetString("disable_modules", "").Split(".".ToCharArray());
String[] annoying_string_array = config.Configs["DataSnapshot"].GetString("disable_modules", "DESUDESUDESU").Split(".".ToCharArray()); foreach (String bloody_wanker in annoying_string_array) {
foreach (String bloody_wanker in annoying_string_array) m_disabledModules.Add(bloody_wanker);
{ }
m_disabledModules.Add(bloody_wanker); } catch (Exception) {
}
}
catch (Exception)
{
m_log.Info("[DATASNAPSHOT]: Could not load configuration. DataSnapshot will be disabled."); m_log.Info("[DATASNAPSHOT]: Could not load configuration. DataSnapshot will be disabled.");
m_enabled = false; m_enabled = false;
return; return;
} }
} }
}
if (Directory.Exists(m_snapsDir)) m_snapStore = new SnapshotStore(m_snapsDir, m_gridinfo, m_listener_port, m_hostname);
{
m_log.Info("[DATASNAPSHOT] DataSnapshot directory already exists.");
}
else
{
// Try to create the directory.
m_log.Info("[DATASNAPSHOT] Creating " + m_snapsDir + " directory.");
try
{
Directory.CreateDirectory(m_snapsDir);
}
catch (Exception)
{
m_log.Error("[DATASNAPSHOT] Failed to create " + m_snapsDir + " directory.");
}
} }
if (m_enabled) if (m_enabled)
{ {
m_log.Info("[DATASNAPSHOT]: Scene added to module."); m_log.Info("[DATASNAPSHOT]: Scene added to module.");
m_snapStore.AddScene(scene);
m_scenes.Add(scene);
Assembly currentasm = Assembly.GetExecutingAssembly();
foreach (Type pluginType in currentasm.GetTypes())
{
if (pluginType.IsPublic)
{
if (!pluginType.IsAbstract)
{
if (pluginType.GetInterface("IDataSnapshotProvider") != null)
{
IDataSnapshotProvider module = (IDataSnapshotProvider)Activator.CreateInstance(pluginType);
module.Initialize(scene, this);
module.OnStale += MarkDataStale;
m_dataproviders.Add(module);
m_snapStore.AddProvider(module);
m_log.Info("[DATASNAPSHOT]: Added new data provider type: " + pluginType.Name);
}
}
}
}
//scene.OnRestart += OnSimRestart;
scene.EventManager.OnShutdown += delegate() { OnSimRestart(scene.RegionInfo); };
} }
else else
{ {
@ -163,68 +186,35 @@ namespace OpenSim.Region.DataSnapshot
{ {
if (m_enabled) if (m_enabled)
{ {
//Right now, only load ISearchData objects in the current assembly.
//Eventually allow it to load ISearchData objects from all assemblies.
Assembly currentasm = Assembly.GetExecutingAssembly();
//Stolen from ModuleLoader.cs
foreach (Type pluginType in currentasm.GetTypes())
{
if (pluginType.IsPublic)
{
if (!pluginType.IsAbstract)
{
if (pluginType.GetInterface("IDataSnapshotProvider") != null)
{
foreach (Scene scene in m_scenes)
{
IDataSnapshotProvider module = (IDataSnapshotProvider)Activator.CreateInstance(pluginType);
module.Initialize(scene, this);
//module.PrepareData();
List<IDataSnapshotProvider> providerlist = null;
m_dataproviders.TryGetValue(scene, out providerlist);
if (providerlist == null)
{
providerlist = new List<IDataSnapshotProvider>();
m_dataproviders.Add(scene, providerlist);
}
providerlist.Add(module);
}
m_log.Info("[DATASNAPSHOT]: Added new data provider type: " + pluginType.Name);
}
}
}
}
//Hand it the first scene, assuming that all scenes have the same BaseHTTPServer //Hand it the first scene, assuming that all scenes have the same BaseHTTPServer
m_requests = new DataRequestHandler(m_scenes[0], this); m_requests = new DataRequestHandler(m_scenes[0], this);
//Create timer //Create update timer
m_periodic = new Timer(); m_periodic = new Timer();
m_periodic.Interval = m_period * 1000; m_periodic.Interval = m_period * 1000;
m_periodic.Elapsed += SnapshotTimerCallback; m_periodic.Elapsed += SnapshotTimerCallback;
m_periodic.Enabled = true;
//Create update eligibility timer
m_passedCheck = new Timer();
m_passedCheck.Interval = m_period * 1000;
m_passedCheck.Elapsed += UpdateEligibilityCallback;
m_passedCheck.Start();
m_hostname = m_scenes[0].RegionInfo.ExternalHostName; m_hostname = m_scenes[0].RegionInfo.ExternalHostName;
MakeNewSnapshot(); //Make the initial snapshot //m_snapStore = new SnapshotStore(m_snapsDir, m_dataproviders, m_gridinfo, m_listener_port, m_hostname);
MakeEverythingStale();
if (m_dataServices != "noservices") if (m_dataServices != "noservices")
NotifyDataServices(m_dataServices); NotifyDataServices(m_dataServices);
} }
} }
#endregion #endregion
#region Associated helper functions #region Associated helper functions
string DataFileName(Scene scene) public Scene SceneForName(string name)
{
return Path.Combine(m_snapsDir, Path.ChangeExtension(scene.RegionInfo.RegionName, "xml"));
//return (m_snapsDir + Path.DirectorySeparatorChar + scene.RegionInfo.RegionName + ".xml");
}
Scene SceneForName(string name)
{ {
foreach (Scene scene in m_scenes) foreach (Scene scene in m_scenes)
if (scene.RegionInfo.RegionName == name) if (scene.RegionInfo.RegionName == name)
@ -233,168 +223,19 @@ namespace OpenSim.Region.DataSnapshot
return null; return null;
} }
#endregion public Scene SceneForUUID(LLUUID id)
#region [Private] XML snapshot generator
private XmlDocument Snapshot(Scene scene)
{ {
XmlDocument basedoc = new XmlDocument(); foreach (Scene scene in m_scenes)
XmlNode regionElement = MakeRegionNode(scene, basedoc); if (scene.RegionInfo.RegionID == id)
return scene;
regionElement.AppendChild(GetGridSnapshotData(basedoc)); return null;
XmlNode regionData = basedoc.CreateNode(XmlNodeType.Element, "data", "");
foreach (KeyValuePair<Scene, List<IDataSnapshotProvider>> dataprovider in m_dataproviders)
{
if (dataprovider.Key == scene)
{
foreach (IDataSnapshotProvider provider in dataprovider.Value)
{
XmlNode data = provider.RequestSnapshotData(basedoc);
regionData.AppendChild(data);
}
}
}
regionElement.AppendChild(regionData);
basedoc.AppendChild(regionElement);
return basedoc;
} }
private XmlNode MakeRegionNode(Scene scene, XmlDocument basedoc)
{
XmlNode docElement = basedoc.CreateNode(XmlNodeType.Element, "region", "");
XmlAttribute attr = basedoc.CreateAttribute("category");
attr.Value = GetRegionCategory(scene);
docElement.Attributes.Append(attr);
attr = basedoc.CreateAttribute("entities");
attr.Value = scene.Entities.Count.ToString();
docElement.Attributes.Append(attr);
//attr = basedoc.CreateAttribute("parcels");
//attr.Value = scene.LandManager.landList.Count.ToString();
//docElement.Attributes.Append(attr);
XmlNode infoblock = basedoc.CreateNode(XmlNodeType.Element, "info", "");
XmlNode infopiece = basedoc.CreateNode(XmlNodeType.Element, "uuid", "");
infopiece.InnerText = scene.RegionInfo.RegionID.ToString();
infoblock.AppendChild(infopiece);
infopiece = basedoc.CreateNode(XmlNodeType.Element, "url", "");
infopiece.InnerText = "http://" + m_hostname + ":" + m_listener_port;
infoblock.AppendChild(infopiece);
infopiece = basedoc.CreateNode(XmlNodeType.Element, "name", "");
infopiece.InnerText = scene.RegionInfo.RegionName;
infoblock.AppendChild(infopiece);
docElement.AppendChild(infoblock);
return docElement;
}
private XmlNode GetGridSnapshotData(XmlDocument factory)
{
XmlNode griddata = factory.CreateNode(XmlNodeType.Element, "grid", "");
foreach (KeyValuePair<String, String> GridData in m_gridinfo)
{
//TODO: make it lowercase tag names for diva
XmlNode childnode = factory.CreateNode(XmlNodeType.Element, GridData.Key, "");
childnode.InnerText = GridData.Value;
griddata.AppendChild(childnode);
}
return griddata;
}
private String GetRegionCategory(Scene scene)
{
//Boolean choice between:
// "PG" - Mormontown
// "Mature" - Sodom and Gomorrah
// (Depreciated) "Patriotic Nigra Testing Sandbox" - Abandon Hope All Ye Who Enter Here
if ((scene.RegionInfo.EstateSettings.simAccess & Simulator.SimAccess.Mature) == Simulator.SimAccess.Mature)
{
return "Mature";
}
else if ((scene.RegionInfo.EstateSettings.simAccess & Simulator.SimAccess.PG) == Simulator.SimAccess.PG)
{
return "PG";
}
else
{
return "Unknown";
}
}
/* Code's closed due to AIDS, See EstateSnapshot.cs for CURE
private XmlNode GetEstateSnapshotData(Scene scene, XmlDocument factory)
{
//Estate data section - contains who owns a set of sims and the name of the set.
//In Opensim all the estate names are the same as the Master Avatar (owner of the sim)
XmlNode estatedata = factory.CreateNode(XmlNodeType.Element, "estate", "");
LLUUID ownerid = scene.RegionInfo.MasterAvatarAssignedUUID;
String firstname = scene.RegionInfo.MasterAvatarFirstName;
String lastname = scene.RegionInfo.MasterAvatarLastName;
String hostname = scene.RegionInfo.ExternalHostName;
XmlNode user = factory.CreateNode(XmlNodeType.Element, "owner", "");
XmlNode username = factory.CreateNode(XmlNodeType.Element, "name", "");
username.InnerText = firstname + " " + lastname;
user.AppendChild(username);
XmlNode useruuid = factory.CreateNode(XmlNodeType.Element, "uuid", "");
useruuid.InnerText = ownerid.ToString();
user.AppendChild(useruuid);
estatedata.AppendChild(user);
return estatedata;
} */
#endregion #endregion
#region [Public] Snapshot storage functions #region [Public] Snapshot storage functions
public void MakeNewSnapshot()
{
foreach (Scene scene in m_scenes)
{
XmlDocument snapshot = Snapshot(scene);
string path = DataFileName(scene);
try
{
using (XmlTextWriter snapXWriter = new XmlTextWriter(path, Encoding.Default))
{
snapXWriter.Formatting = Formatting.Indented;
snapXWriter.WriteStartDocument();
snapshot.WriteTo(snapXWriter);
snapXWriter.WriteEndDocument();
m_lastSnapshot++;
}
}
catch (Exception e)
{
m_log.Warn("[DATASNAPSHOT]: Caught unknown exception while trying to save snapshot: " + path + "\n" + e.ToString());
}
m_log.Info("[DATASNAPSHOT]: Made external data snapshot " + path);
}
}
/** /**
* Reply to the http request * Reply to the http request
*/ */
@ -410,30 +251,16 @@ namespace OpenSim.Region.DataSnapshot
{ {
foreach (Scene scene in m_scenes) foreach (Scene scene in m_scenes)
{ {
string path = DataFileName(scene); regiondata.AppendChild(m_snapStore.GetScene(scene, requestedSnap));
XmlDocument regionSnap = new XmlDocument();
regionSnap.PreserveWhitespace = true;
regionSnap.Load(path);
XmlNode nodeOrig = regionSnap["region"];
XmlNode nodeDest = requestedSnap.ImportNode(nodeOrig, true);
//requestedSnap.AppendChild(nodeDest);
regiondata.AppendChild(requestedSnap.CreateWhitespace("\r\n"));
regiondata.AppendChild(nodeDest);
} }
} }
else else
{ {
Scene scene = SceneForName(regionName); Scene scene = SceneForName(regionName);
requestedSnap.Load(DataFileName(scene)); regiondata.AppendChild(m_snapStore.GetScene(scene, requestedSnap));
} }
// requestedSnap.InsertBefore(requestedSnap.CreateXmlDeclaration("1.0", null, null),
// requestedSnap.DocumentElement);
requestedSnap.AppendChild(regiondata); requestedSnap.AppendChild(regiondata);
regiondata.AppendChild(requestedSnap.CreateWhitespace("\r\n")); regiondata.AppendChild(requestedSnap.CreateWhitespace("\r\n"));
} }
catch (XmlException e) catch (XmlException e)
{ {
@ -469,16 +296,6 @@ namespace OpenSim.Region.DataSnapshot
#endregion #endregion
#region Event callbacks
private void SnapshotTimerCallback(object timer, ElapsedEventArgs args)
{
MakeNewSnapshot();
//Add extra calls here
}
#endregion
#region External data services #region External data services
private void NotifyDataServices(string servicesStr) private void NotifyDataServices(string servicesStr)
{ {
@ -524,5 +341,85 @@ namespace OpenSim.Region.DataSnapshot
} }
#endregion #endregion
#region Latency-based update functions
public void MarkDataStale(IDataSnapshotProvider provider)
{
//Behavior here: Wait m_period seconds, then update if there has not been a request in m_period seconds
//or m_maxStales has been exceeded
m_stales++;
if ((m_stales >= m_maxStales) && m_periodPassed)
SnapshotTimerCallback(m_periodic, null);
else if (m_periodic.Enabled == false)
m_periodic.Start();
else
{
m_periodic.Stop();
m_periodic.Start();
}
}
private void SnapshotTimerCallback(object timer, ElapsedEventArgs args)
{
m_log.Debug("[DATASNAPSHOT]: Marking scenes for snapshot updates.");
//Finally generate those snapshot updates
MakeEverythingStale();
//Stop the update delay timer
m_periodic.Stop();
//Reset the eligibility flag and timer
m_periodPassed = false;
m_passedCheck.Stop();
m_passedCheck.Start();
}
private void UpdateEligibilityCallback(object timer, ElapsedEventArgs args)
{
//Set eligibility, so we can start making updates
m_periodPassed = true;
}
public void MakeEverythingStale()
{
m_log.Debug("[DATASNAPSHOT]: Marking all scenes as stale.");
foreach (Scene scene in m_scenes)
{
m_snapStore.ForceSceneStale(scene);
}
}
#endregion
public void OnSimRestart(RegionInfo thisRegion)
{
m_log.Info("[DATASNAPSHOT]: Region " + thisRegion.RegionName + " is restarting, removing from indexing");
Scene restartedScene = SceneForUUID(thisRegion.RegionID);
m_scenes.Remove(restartedScene);
m_snapStore.RemoveScene(restartedScene);
//Getting around the fact that we can't remove objects from a collection we are enumerating over
List<IDataSnapshotProvider> providersToRemove = new List<IDataSnapshotProvider>();
foreach (IDataSnapshotProvider provider in m_dataproviders)
{
if (provider.GetParentScene == restartedScene)
{
providersToRemove.Add(provider);
}
}
foreach (IDataSnapshotProvider provider in providersToRemove)
{
m_dataproviders.Remove(provider);
m_snapStore.RemoveProvider(provider);
}
m_snapStore.RemoveScene(restartedScene);
}
} }
} }

31
OpenSim/Region/DataSnapshot/EstateSnapshot.cs
View File

@ -31,12 +31,19 @@ using libsecondlife;
using OpenSim.Region.DataSnapshot.Interfaces; using OpenSim.Region.DataSnapshot.Interfaces;
using OpenSim.Region.Environment.Scenes; using OpenSim.Region.Environment.Scenes;
namespace OpenSim.Region.DataSnapshot namespace OpenSim.Region.DataSnapshot.Providers
{ {
public class EstateSnapshot : IDataSnapshotProvider public class EstateSnapshot : IDataSnapshotProvider
{ {
/* This module doesn't check for changes, since it's *assumed* there are none.
* Nevertheless, it's possible to have changes, since all the fields are public.
* There's no event to subscribe to. :/
*
* I don't think anything changes the fields beyond RegionModule PostInit, however.
*/
private Scene m_scene = null; private Scene m_scene = null;
private DataSnapshotManager m_parent = null; private DataSnapshotManager m_parent = null;
private bool m_stale = true;
#region IDataSnapshotProvider Members #region IDataSnapshotProvider Members
@ -70,6 +77,7 @@ namespace OpenSim.Region.DataSnapshot
estatedata.AppendChild(user); estatedata.AppendChild(user);
this.Stale = false;
return estatedata; return estatedata;
} }
@ -84,6 +92,25 @@ namespace OpenSim.Region.DataSnapshot
get { return m_scene; } get { return m_scene; }
} }
public String Name {
get { return "EstateSnapshot"; }
}
public bool Stale
{
get {
return m_stale;
}
set {
m_stale = value;
if (m_stale)
OnStale(this);
}
}
public event ProviderStale OnStale;
#endregion #endregion
} }
} }

13
OpenSim/Region/DataSnapshot/Interfaces/IDataSnapshot.cs Normal file
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@ -0,0 +1,13 @@
using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;
namespace OpenSim.Region.DataSnapshot.Interfaces
{
public interface IDataSnapshot
{
XmlDocument GetSnapshot(string regionName);
void MakeEverythingStale();
}
}

12
OpenSim/Region/DataSnapshot/Interfaces/IDataSnapshotProvider.cs
View File

@ -26,19 +26,21 @@
* *
*/ */
using System;
using System.Xml; using System.Xml;
using OpenSim.Region.Environment.Scenes; using OpenSim.Region.Environment.Scenes;
namespace OpenSim.Region.DataSnapshot.Interfaces namespace OpenSim.Region.DataSnapshot.Interfaces
{ {
public delegate void ProviderStale(IDataSnapshotProvider provider);
public interface IDataSnapshotProvider public interface IDataSnapshotProvider
{ {
XmlNode RequestSnapshotData(XmlDocument document); XmlNode RequestSnapshotData(XmlDocument document);
//void PrepareData();
void Initialize(Scene scene, DataSnapshotManager parent); void Initialize(Scene scene, DataSnapshotManager parent);
Scene GetParentScene { get; } Scene GetParentScene { get; }
String Name { get; }
bool Stale { get; set; }
event ProviderStale OnStale;
} }
} }

46
OpenSim/Region/DataSnapshot/LLSDDiscovery.cs Normal file
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@ -0,0 +1,46 @@
/*
* 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 OpenSim 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 OpenSim.Framework.Communications.Capabilities;
namespace OpenSim.Region.DataSnapshot
{
[LLSDMap]
public class LLSDDiscoveryResponse
{
public LLSDArray snapshot_resources;
}
[LLSDMap]
public class LLSDDiscoveryDataURL
{
public string snapshot_format;
public string snapshot_url;
}
}

71
OpenSim/Region/DataSnapshot/LandSnapshot.cs
View File

@ -23,7 +23,7 @@
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * 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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* *
*/ */
using System; using System;
@ -37,8 +37,9 @@ using OpenSim.Region.DataSnapshot.Interfaces;
using OpenSim.Region.Environment.Interfaces; using OpenSim.Region.Environment.Interfaces;
using OpenSim.Region.Environment.Modules.World.Land; using OpenSim.Region.Environment.Modules.World.Land;
using OpenSim.Region.Environment.Scenes; using OpenSim.Region.Environment.Scenes;
using libsecondlife.Packets;
namespace OpenSim.Region.DataSnapshot namespace OpenSim.Region.DataSnapshot.Providers
{ {
public class LandSnapshot : IDataSnapshotProvider public class LandSnapshot : IDataSnapshotProvider
{ {
@ -46,14 +47,15 @@ namespace OpenSim.Region.DataSnapshot
private DataSnapshotManager m_parent = null; private DataSnapshotManager m_parent = null;
//private Dictionary<int, Land> m_landIndexed = new Dictionary<int, Land>(); //private Dictionary<int, Land> m_landIndexed = new Dictionary<int, Land>();
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
private bool m_stale = true;
#region Dead code #region Dead code
/* /*
* David, I don't think we need this at all. When we do the snapshot, we can * David, I don't think we need this at all. When we do the snapshot, we can
* simply look into the parcels that are marked for ShowDirectory -- see * simply look into the parcels that are marked for ShowDirectory -- see
* conditional in RequestSnapshotData * conditional in RequestSnapshotData
* *
//Revise this, look for more direct way of checking for change in land //Revise this, look for more direct way of checking for change in land
#region Client hooks #region Client hooks
@ -106,7 +108,9 @@ namespace OpenSim.Region.DataSnapshot
{ {
m_scene = scene; m_scene = scene;
m_parent = parent; m_parent = parent;
//m_scene.EventManager.OnNewClient += OnNewClient;
//Brought back from the dead for staleness checks.
m_scene.EventManager.OnNewClient += OnNewClient;
} }
public Scene GetParentScene public Scene GetParentScene
@ -115,7 +119,7 @@ namespace OpenSim.Region.DataSnapshot
} }
public XmlNode RequestSnapshotData(XmlDocument nodeFactory) public XmlNode RequestSnapshotData(XmlDocument nodeFactory)
{ {
ILandChannel landChannel = (LandChannel)m_scene.LandChannel; ILandChannel landChannel = (LandChannel)m_scene.LandChannel;
Dictionary<int, ILandObject> landList = null; Dictionary<int, ILandObject> landList = null;
try try
@ -129,7 +133,7 @@ namespace OpenSim.Region.DataSnapshot
} }
catch (Exception e) catch (Exception e)
{ {
Console.WriteLine("[DATASNAPSHOT] couldn't access field reflectively\n" + e.ToString()); m_log.Error("[DATASNAPSHOT] couldn't access field reflectively\n" + e.ToString());
} }
XmlNode parent = nodeFactory.CreateNode(XmlNodeType.Element, "parceldata", ""); XmlNode parent = nodeFactory.CreateNode(XmlNodeType.Element, "parceldata", "");
if (landList != null) if (landList != null)
@ -243,9 +247,32 @@ namespace OpenSim.Region.DataSnapshot
//snap.AppendChild(parent); //snap.AppendChild(parent);
} }
this.Stale = false;
return parent; return parent;
} }
public String Name
{
get { return "LandSnapshot"; }
}
public bool Stale
{
get
{
return m_stale;
}
set
{
m_stale = value;
if (m_stale)
OnStale(this);
}
}
public event ProviderStale OnStale;
#endregion #endregion
#region Helper functions #region Helper functions
@ -260,5 +287,33 @@ namespace OpenSim.Region.DataSnapshot
} }
#endregion #endregion
#region Change detection hooks
public void OnNewClient(IClientAPI client)
{
//Land hooks
client.OnParcelDivideRequest += delegate (int west, int south, int east, int north,
IClientAPI remote_client) { this.Stale = true; };
client.OnParcelJoinRequest += delegate (int west, int south, int east, int north,
IClientAPI remote_client) { this.Stale = true; };
client.OnParcelPropertiesUpdateRequest += delegate(LandUpdateArgs args, int local_id,
IClientAPI remote_client) { this.Stale = true; };
client.OnParcelBuy += delegate (LLUUID agentId, LLUUID groupId, bool final, bool groupOwned,
bool removeContribution, int parcelLocalID, int parcelArea, int parcelPrice, bool authenticated)
{ this.Stale = true; };
}
public void ParcelSplitHook(int west, int south, int east, int north, IClientAPI remote_client)
{
this.Stale = true;
}
public void ParcelPropsHook(LandUpdateArgs args, int local_id, IClientAPI remote_client)
{
this.Stale = true;
}
#endregion
} }
} }

136
OpenSim/Region/DataSnapshot/ObjectSnapshot.cs
View File

@ -25,24 +25,63 @@
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/ */
using System;
using System.Collections.Generic;
using System.Reflection; using System.Reflection;
using System.Xml; using System.Xml;
using log4net; using log4net;
using OpenSim.Region.DataSnapshot.Interfaces; using OpenSim.Region.DataSnapshot.Interfaces;
using OpenSim.Region.Environment.Scenes; using OpenSim.Region.Environment.Scenes;
using OpenSim.Framework;
using libsecondlife;
namespace OpenSim.Region.DataSnapshot namespace OpenSim.Region.DataSnapshot.Providers
{ {
public class ObjectSnapshot : IDataSnapshotProvider public class ObjectSnapshot : IDataSnapshotProvider
{ {
private Scene m_scene = null; private Scene m_scene = null;
private DataSnapshotManager m_parent = null; private DataSnapshotManager m_parent = null;
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
private bool m_stale = true;
public void Initialize(Scene scene, DataSnapshotManager parent) public void Initialize(Scene scene, DataSnapshotManager parent)
{ {
m_scene = scene; m_scene = scene;
m_parent = parent; m_parent = parent;
//To check for staleness, we must catch all incoming client packets.
m_scene.EventManager.OnNewClient += OnNewClient;
m_scene.EventManager.OnParcelPrimCountAdd += delegate(SceneObjectGroup obj) { this.Stale = true; };
}
public void OnNewClient(IClientAPI client)
{
//Detect object data changes by hooking into the IClientAPI.
//Very dirty, and breaks whenever someone changes the client API.
client.OnAddPrim += delegate (LLUUID ownerID, LLVector3 RayEnd, LLQuaternion rot,
PrimitiveBaseShape shape, byte bypassRaycast, LLVector3 RayStart, LLUUID RayTargetID,
byte RayEndIsIntersection) { this.Stale = true; };
client.OnLinkObjects += delegate (IClientAPI remoteClient, uint parent, List<uint> children)
{ this.Stale = true; };
client.OnDelinkObjects += delegate(List<uint> primIds) { this.Stale = true; };
client.OnGrabUpdate += delegate(LLUUID objectID, LLVector3 offset, LLVector3 grapPos,
IClientAPI remoteClient) { this.Stale = true; };
client.OnObjectAttach += delegate(IClientAPI remoteClient, uint objectLocalID, uint AttachmentPt,
LLQuaternion rot) { this.Stale = true; };
client.OnObjectDuplicate += delegate(uint localID, LLVector3 offset, uint dupeFlags, LLUUID AgentID,
LLUUID GroupID) { this.Stale = true; };
client.OnObjectDuplicateOnRay += delegate(uint localID, uint dupeFlags, LLUUID AgentID, LLUUID GroupID,
LLUUID RayTargetObj, LLVector3 RayEnd, LLVector3 RayStart, bool BypassRaycast,
bool RayEndIsIntersection, bool CopyCenters, bool CopyRotates) { this.Stale = true; };
client.OnObjectIncludeInSearch += delegate(IClientAPI remoteClient, bool IncludeInSearch, uint localID)
{ this.Stale = true; };
client.OnObjectPermissions += delegate(IClientAPI controller, LLUUID agentID, LLUUID sessionID,
byte field, uint localId, uint mask, byte set) { this.Stale = true; };
client.OnRezObject += delegate(IClientAPI remoteClient, LLUUID itemID, LLVector3 RayEnd,
LLVector3 RayStart, LLUUID RayTargetID, byte BypassRayCast, bool RayEndIsIntersection,
uint EveryoneMask, uint GroupMask, uint NextOwnerMask, uint ItemFlags, bool RezSelected,
bool RemoveItem, LLUUID fromTaskID) { this.Stale = true; };
} }
public Scene GetParentScene public Scene GetParentScene
@ -52,56 +91,83 @@ namespace OpenSim.Region.DataSnapshot
public XmlNode RequestSnapshotData(XmlDocument nodeFactory) public XmlNode RequestSnapshotData(XmlDocument nodeFactory)
{ {
m_log.Debug("[DATASNAPSHOT]: Generating object data for scene " + m_scene.RegionInfo.RegionName);
XmlNode parent = nodeFactory.CreateNode(XmlNodeType.Element, "objectdata", ""); XmlNode parent = nodeFactory.CreateNode(XmlNodeType.Element, "objectdata", "");
XmlNode node; XmlNode node;
#if LIBSL_IS_FIXED
foreach (EntityBase entity in m_scene.Entities.Values) foreach (EntityBase entity in m_scene.Entities.Values)
{ {
// only objects, not avatars // only objects, not avatars
if (entity is SceneObjectGroup) if (entity is SceneObjectGroup)
{ {
SceneObjectGroup obj = (SceneObjectGroup)entity; SceneObjectGroup obj = (SceneObjectGroup)entity;
XmlNode xmlobject = nodeFactory.CreateNode(XmlNodeType.Element, "object", ""); m_log.Debug("[DATASNAPSHOT]: Found object " + obj.Name + " in scene");
node = nodeFactory.CreateNode(XmlNodeType.Element, "uuid", ""); if ((obj.RootPart.Flags & LLObject.ObjectFlags.JointWheel) == LLObject.ObjectFlags.JointWheel) {
node.InnerText = obj.UUID.ToString(); XmlNode xmlobject = nodeFactory.CreateNode(XmlNodeType.Element, "object", "");
xmlobject.AppendChild(node);
SceneObjectPart m_rootPart = null; node = nodeFactory.CreateNode(XmlNodeType.Element, "uuid", "");
try node.InnerText = obj.UUID.ToString();
{ xmlobject.AppendChild(node);
Type sog = typeof(SceneObjectGroup);
FieldInfo rootField = sog.GetField("m_rootPart", BindingFlags.NonPublic | BindingFlags.Instance); SceneObjectPart m_rootPart = null;
if (rootField != null) try
{ {
m_rootPart = (SceneObjectPart)rootField.GetValue(obj); Type sog = typeof(SceneObjectGroup);
FieldInfo rootField = sog.GetField("m_rootPart", BindingFlags.NonPublic | BindingFlags.Instance);
if (rootField != null)
{
m_rootPart = (SceneObjectPart)rootField.GetValue(obj);
}
} }
} catch (Exception e)
catch (Exception e) {
{ Console.WriteLine("[DATASNAPSHOT] couldn't access field reflectively\n" + e.ToString());
Console.WriteLine("[DATASNAPSHOT] couldn't access field reflectively\n" + e.ToString()); }
} if (m_rootPart != null)
if (m_rootPart != null) {
{ node = nodeFactory.CreateNode(XmlNodeType.Element, "title", "");
node = nodeFactory.CreateNode(XmlNodeType.Element, "title", ""); node.InnerText = m_rootPart.Name;
node.InnerText = m_rootPart.Name; xmlobject.AppendChild(node);
xmlobject.AppendChild(node);
node = nodeFactory.CreateNode(XmlNodeType.Element, "description", ""); node = nodeFactory.CreateNode(XmlNodeType.Element, "description", "");
node.InnerText = m_rootPart.Description; node.InnerText = m_rootPart.Description;
xmlobject.AppendChild(node); xmlobject.AppendChild(node);
node = nodeFactory.CreateNode(XmlNodeType.Element, "flags", ""); node = nodeFactory.CreateNode(XmlNodeType.Element, "flags", "");
node.InnerText = String.Format("{0:x}", m_rootPart.ObjectFlags); node.InnerText = String.Format("{0:x}", m_rootPart.ObjectFlags);
xmlobject.AppendChild(node); xmlobject.AppendChild(node);
}
parent.AppendChild(xmlobject);
} }
parent.AppendChild(xmlobject);
} }
} }
#endif this.Stale = false;
return parent; return parent;
} }
public String Name
{
get { return "ObjectSnapshot"; }
}
public bool Stale
{
get
{
return m_stale;
}
set
{
m_stale = value;
if (m_stale)
OnStale(this);
}
}
public event ProviderStale OnStale;
} }
} }

316
OpenSim/Region/DataSnapshot/SnapshotStore.cs Normal file
View File

@ -0,0 +1,316 @@
/*
* 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 OpenSim 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.Text;
using System.Xml;
using System.IO;
using OpenSim.Region.Environment.Scenes;
using OpenSim.Region.DataSnapshot.Interfaces;
using libsecondlife;
namespace OpenSim.Region.DataSnapshot
{
public class SnapshotStore
{
#region Class Members
private String m_directory = "unyuu"; //not an attempt at adding RM references to core SVN, honest
private Dictionary<Scene, bool> m_scenes = null;
private List<IDataSnapshotProvider> m_providers = null;
private log4net.ILog m_log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
private Dictionary<String, String> m_gridinfo = null;
private bool m_cacheEnabled = true;
private string m_listener_port = "9000"; //TODO: Set default port over 9000
private string m_hostname = "127.0.0.1";
#endregion
public SnapshotStore(string directory, Dictionary<String, String> gridinfo, string port, string hostname) {
m_directory = directory;
m_scenes = new Dictionary<Scene, bool>();
m_providers = new List<IDataSnapshotProvider>();
m_gridinfo = gridinfo;
m_listener_port = port;
m_hostname = hostname;
if (Directory.Exists(m_directory))
{
m_log.Info("[DATASNAPSHOT]: Repsonse and fragment cache directory already exists.");
}
else
{
// Try to create the directory.
m_log.Info("[DATASNAPSHOT]: Creating directory " + m_directory);
try
{
Directory.CreateDirectory(m_directory);
}
catch (Exception e)
{
m_log.Error("[DATASNAPSHOT]: Failed to create directory " + m_directory, e);
//This isn't a horrible problem, just disable cacheing.
m_cacheEnabled = false;
m_log.Error("[DATASNAPSHOT]: Could not create directory, response cache has been disabled.");
}
}
}
public void ForceSceneStale(Scene scene) {
m_scenes[scene] = true;
}
#region Fragment storage
public XmlNode GetFragment(IDataSnapshotProvider provider, XmlDocument factory)
{
XmlNode data = null;
if (provider.Stale || !m_cacheEnabled)
{
data = provider.RequestSnapshotData(factory);
if (m_cacheEnabled)
{
String path = DataFileNameFragment(provider.GetParentScene, provider.Name);
using (XmlTextWriter snapXWriter = new XmlTextWriter(path, Encoding.Default))
{
snapXWriter.Formatting = Formatting.Indented;
snapXWriter.WriteStartDocument();
data.WriteTo(snapXWriter);
snapXWriter.WriteEndDocument();
}
}
//mark provider as not stale, parent scene as stale
provider.Stale = false;
m_scenes[provider.GetParentScene] = true;
m_log.Info("[DATASNAPSHOT]: Generated fragment response for provider type " + provider.Name);
}
else
{
String path = DataFileNameFragment(provider.GetParentScene, provider.Name);
XmlDocument fragDocument = new XmlDocument();
fragDocument.PreserveWhitespace = true;
fragDocument.Load(path);
foreach (XmlNode node in fragDocument)
{
data = factory.ImportNode(node, true);
}
m_log.Info("[DATASNAPSHOT]: Retrieved fragment response for provider type " + provider.Name);
}
return data;
}
#endregion
#region Response storage
public XmlNode GetScene(Scene scene, XmlDocument factory)
{
m_log.Debug("[DATASNAPSHOT]: Data requested for scene " + scene.RegionInfo.RegionName);
if (!m_scenes.ContainsKey(scene)) {
m_scenes.Add(scene, true); //stale by default
}
XmlNode regionElement = null;
if (!m_scenes[scene])
{
m_log.Info("[DATASNAPSHOT]: Attempting to retrieve snapshot from cache.");
//get snapshot from cache
String path = DataFileNameScene(scene);
XmlDocument fragDocument = new XmlDocument();
fragDocument.PreserveWhitespace = true;
fragDocument.Load(path);
foreach (XmlNode node in fragDocument)
{
regionElement = factory.ImportNode(node, true);
}
m_log.Info("[DATASNAPSHOT]: Obtained snapshot from cache for " + scene.RegionInfo.RegionName);
}
else
{
m_log.Info("[DATASNAPSHOT]: Attempting to generate snapshot.");
//make snapshot
regionElement = MakeRegionNode(scene, factory);
regionElement.AppendChild(GetGridSnapshotData(factory));
XmlNode regionData = factory.CreateNode(XmlNodeType.Element, "data", "");
foreach (IDataSnapshotProvider dataprovider in m_providers)
{
if (dataprovider.GetParentScene == scene)
{
regionData.AppendChild(GetFragment(dataprovider, factory));
}
}
regionElement.AppendChild(regionData);
factory.AppendChild(regionElement);
//save snapshot
String path = DataFileNameScene(scene);
using (XmlTextWriter snapXWriter = new XmlTextWriter(path, Encoding.Default))
{
snapXWriter.Formatting = Formatting.Indented;
snapXWriter.WriteStartDocument();
regionElement.WriteTo(snapXWriter);
snapXWriter.WriteEndDocument();
}
m_scenes[scene] = false;
m_log.Info("[DATASNAPSHOT]: Generated new snapshot for " + scene.RegionInfo.RegionName);
}
return regionElement;
}
#endregion
#region Helpers
private string DataFileNameFragment(Scene scene, String fragmentName)
{
return Path.Combine(m_directory, Path.ChangeExtension(scene.RegionInfo.RegionName + "_" + fragmentName, "xml"));
}
private string DataFileNameScene(Scene scene)
{
return Path.Combine(m_directory, Path.ChangeExtension(scene.RegionInfo.RegionName, "xml"));
//return (m_snapsDir + Path.DirectorySeparatorChar + scene.RegionInfo.RegionName + ".xml");
}
private XmlNode MakeRegionNode(Scene scene, XmlDocument basedoc)
{
XmlNode docElement = basedoc.CreateNode(XmlNodeType.Element, "region", "");
XmlAttribute attr = basedoc.CreateAttribute("category");
attr.Value = GetRegionCategory(scene);
docElement.Attributes.Append(attr);
attr = basedoc.CreateAttribute("entities");
attr.Value = scene.Entities.Count.ToString();
docElement.Attributes.Append(attr);
//attr = basedoc.CreateAttribute("parcels");
//attr.Value = scene.LandManager.landList.Count.ToString();
//docElement.Attributes.Append(attr);
XmlNode infoblock = basedoc.CreateNode(XmlNodeType.Element, "info", "");
XmlNode infopiece = basedoc.CreateNode(XmlNodeType.Element, "uuid", "");
infopiece.InnerText = scene.RegionInfo.RegionID.ToString();
infoblock.AppendChild(infopiece);
infopiece = basedoc.CreateNode(XmlNodeType.Element, "url", "");
infopiece.InnerText = "http://" + m_hostname + ":" + m_listener_port;
infoblock.AppendChild(infopiece);
infopiece = basedoc.CreateNode(XmlNodeType.Element, "name", "");
infopiece.InnerText = scene.RegionInfo.RegionName;
infoblock.AppendChild(infopiece);
docElement.AppendChild(infoblock);
m_log.Debug("[DATASNAPSHOT]: Generated region node");
return docElement;
}
private String GetRegionCategory(Scene scene)
{
//Boolean choice between:
// "PG" - Mormontown
// "Mature" - Sodom and Gomorrah
// (Depreciated) "Patriotic Nigra Testing Sandbox" - Abandon Hope All Ye Who Enter Here
if ((scene.RegionInfo.EstateSettings.simAccess & Simulator.SimAccess.Mature) == Simulator.SimAccess.Mature)
{
return "Mature";
}
else if ((scene.RegionInfo.EstateSettings.simAccess & Simulator.SimAccess.PG) == Simulator.SimAccess.PG)
{
return "PG";
}
else
{
return "Unknown";
}
}
private XmlNode GetGridSnapshotData(XmlDocument factory)
{
XmlNode griddata = factory.CreateNode(XmlNodeType.Element, "grid", "");
foreach (KeyValuePair<String, String> GridData in m_gridinfo)
{
//TODO: make it lowercase tag names for diva
XmlNode childnode = factory.CreateNode(XmlNodeType.Element, GridData.Key, "");
childnode.InnerText = GridData.Value;
griddata.AppendChild(childnode);
}
m_log.Debug("[DATASNAPSHOT]: Got grid snapshot data");
return griddata;
}
#endregion
#region Manage internal collections
public void AddScene(Scene newScene)
{
m_scenes.Add(newScene, true);
}
public void RemoveScene(Scene deadScene)
{
m_scenes.Remove(deadScene);
}
public void AddProvider(IDataSnapshotProvider newProvider)
{
m_providers.Add(newProvider);
}
public void RemoveProvider(IDataSnapshotProvider deadProvider)
{
m_providers.Remove(deadProvider);
}
#endregion
}
}