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https://github.com/opensim/opensim.git
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Merge branch 'cms' of http://pokgsa.ibm.com/~jbongio/public/opensim
This commit is contained in:
Sean Dague
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// FileSystemDatabase.cs
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// User: bongiojp
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Reflection;
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using System.Xml;
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using libsecondlife;
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using Nini.Config;
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using OpenSim.Framework;
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using OpenSim.Region.Environment.Interfaces;
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using OpenSim.Region.Environment.Modules.World.Serialiser;
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using OpenSim.Region.Environment.Modules.World.Terrain;
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using OpenSim.Region.Environment.Scenes;
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using log4net;
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using OpenSim.Region.Physics.Manager;
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using Axiom.Math;
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using Slash=System.IO.Path;
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using System.Diagnostics;
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namespace OpenSim.Region.Environment.Modules.ContentManagement
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{
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public class FileSystemDatabase : IContentDatabase
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{
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public static float TimeToDownload = 0;
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public static float TimeToSave = 0;
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private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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private string m_repodir = null;
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private Dictionary<LLUUID, IRegionSerialiser> m_serialiser = new Dictionary<LLUUID, IRegionSerialiser>();
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private Dictionary<LLUUID, Scene> m_scenes = new Dictionary<LLUUID, Scene>();
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public FileSystemDatabase()
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{
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}
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public void Initialise(Scene scene, string dir)
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{
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lock(this)
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{
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if (m_repodir == null)
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m_repodir = dir;
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}
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lock(m_scenes)
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m_scenes.Add(scene.RegionInfo.RegionID, scene);
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}
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// Run once and only once.
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public void PostInitialise()
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{
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SetupSerialiser();
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m_log.Info("[FSDB]: Creating repository in " + m_repodir + ".");
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CreateDirectory();
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}
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// called by postinitialise
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private void SetupSerialiser()
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{
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if (m_serialiser.Count == 0)
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foreach(LLUUID region in m_scenes.Keys)
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m_serialiser.Add(region,
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m_scenes[region].RequestModuleInterface<IRegionSerialiser>()
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);
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}
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// called by postinitialise
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private void CreateDirectory()
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{
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string scenedir;
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if (!Directory.Exists(m_repodir))
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Directory.CreateDirectory(m_repodir);
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foreach (LLUUID region in m_scenes.Keys)
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{
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scenedir = m_repodir + Slash.DirectorySeparatorChar + region + Slash.DirectorySeparatorChar;
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if (!Directory.Exists(scenedir))
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Directory.CreateDirectory(scenedir);
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}
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}
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public int NumOfRegionRev(LLUUID regionid)
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{
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string scenedir = m_repodir + Slash.DirectorySeparatorChar + regionid + Slash.DirectorySeparatorChar;
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m_log.Info("[FSDB]: Reading scene dir: " + scenedir);
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string[] directories = Directory.GetDirectories(scenedir);
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return directories.Length;
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}
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public int GetMostRecentRevision(LLUUID regionid)
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{
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return NumOfRegionRev(regionid);
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}
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public void SaveRegion(LLUUID regionid, string regionName, string logMessage)
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{
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m_log.Info("[FSDB]: ...............................");
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string scenedir = m_repodir + Slash.DirectorySeparatorChar + regionid + Slash.DirectorySeparatorChar;
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m_log.Info("[FSDB]: checking if scene directory exists: " + scenedir);
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if (!Directory.Exists(scenedir))
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Directory.CreateDirectory(scenedir);
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int newRevisionNum = GetMostRecentRevision(regionid)+1;
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string revisiondir = scenedir + newRevisionNum + Slash.DirectorySeparatorChar;
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m_log.Info("[FSDB]: checking if revision directory exists: " + revisiondir);
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if (!Directory.Exists(revisiondir))
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Directory.CreateDirectory(revisiondir);
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try {
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Stopwatch x = new Stopwatch();
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x.Start();
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if (m_scenes.ContainsKey(regionid))
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{
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m_serialiser[regionid].SerialiseRegion(m_scenes[regionid], revisiondir);
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}
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x.Stop();
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TimeToSave += x.ElapsedMilliseconds;
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m_log.Info("[FileSystemDatabase] Time spent serialising regions to files on disk for " + regionName + ": " + x.ElapsedMilliseconds);
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m_log.Info("[FileSystemDatabase] Time spent serialising regions to files on disk so far: " + TimeToSave);
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}
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catch (Exception e)
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{
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m_log.ErrorFormat("[FSDB]: Serialisation of region failed: " + e);
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return;
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}
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try {
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// Finish by writing log message.
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FileStream file = new FileStream(revisiondir + "log", FileMode.Create, FileAccess.ReadWrite);
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StreamWriter sw = new StreamWriter(file);
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sw.Write(logMessage);
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sw.Close();
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}
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catch (Exception e)
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{
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m_log.ErrorFormat("[FSDB]: Failed trying to save log file " + e);
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return;
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}
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}
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public System.Collections.ArrayList GetRegionObjectXMLList(LLUUID regionid, int revision)
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{
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System.Collections.ArrayList objectList = new System.Collections.ArrayList();
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string filename = m_repodir + Slash.DirectorySeparatorChar + regionid + Slash.DirectorySeparatorChar +
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+ revision + Slash.DirectorySeparatorChar + "objects.xml";
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XmlDocument doc = new XmlDocument();
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XmlNode rootNode;
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//int primCount = 0;
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//SceneObjectGroup obj = null;
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if(File.Exists(filename))
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{
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XmlTextReader reader = new XmlTextReader(filename);
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reader.WhitespaceHandling = WhitespaceHandling.None;
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doc.Load(reader);
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reader.Close();
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rootNode = doc.FirstChild;
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foreach (XmlNode aPrimNode in rootNode.ChildNodes)
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{
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objectList.Add(aPrimNode.OuterXml);
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}
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return objectList;
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}
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return null;
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}
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public System.Collections.ArrayList GetRegionObjectXMLList(LLUUID regionid)
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{
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int revision = NumOfRegionRev(regionid);
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m_log.Info("[FSDB]: found revisions:" + revision);
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System.Collections.ArrayList xmlList = new System.Collections.ArrayList();
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string filename = m_repodir + Slash.DirectorySeparatorChar + regionid + Slash.DirectorySeparatorChar +
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+ revision + Slash.DirectorySeparatorChar + "objects.xml";
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XmlDocument doc = new XmlDocument();
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XmlNode rootNode;
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m_log.Info("[FSDB]: Checking if " + filename + " exists.");
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if(File.Exists(filename))
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{
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Stopwatch x = new Stopwatch();
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x.Start();
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XmlTextReader reader = new XmlTextReader(filename);
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reader.WhitespaceHandling = WhitespaceHandling.None;
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doc.Load(reader);
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reader.Close();
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rootNode = doc.FirstChild;
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foreach (XmlNode aPrimNode in rootNode.ChildNodes)
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xmlList.Add(aPrimNode.OuterXml);
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x.Stop();
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TimeToDownload += x.ElapsedMilliseconds;
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m_log.Info("[FileSystemDatabase] Time spent retrieving xml files so far: " + TimeToDownload);
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return xmlList;
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}
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return null;
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}
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public string GetRegionObjectHeightMap(LLUUID regionid)
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{
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String filename = m_repodir + Slash.DirectorySeparatorChar + regionid +
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Slash.DirectorySeparatorChar + "heightmap.r32";
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FileStream fs = new FileStream( filename, FileMode.Open);
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StreamReader sr = new StreamReader(fs);
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String result = sr.ReadToEnd();
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sr.Close();
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fs.Close();
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return result;
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}
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public string GetRegionObjectHeightMap(LLUUID regionid, int revision)
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{
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String filename = m_repodir + Slash.DirectorySeparatorChar + regionid +
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Slash.DirectorySeparatorChar + "heightmap.r32";
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FileStream fs = new FileStream( filename, FileMode.Open);
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StreamReader sr = new StreamReader(fs);
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String result = sr.ReadToEnd();
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sr.Close();
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fs.Close();
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return result;
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}
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public System.Collections.Generic.SortedDictionary<string, string> ListOfRegionRevisions(LLUUID regionid)
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{
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SortedDictionary<string, string> revisionDict = new SortedDictionary<string,string>();
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string scenedir = m_repodir + Slash.DirectorySeparatorChar + regionid + Slash.DirectorySeparatorChar;
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string[] directories = Directory.GetDirectories(scenedir);
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FileStream fs = null;
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StreamReader sr = null;
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String logMessage = "";
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String logLocation = "";
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foreach(string revisionDir in directories)
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{
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try {
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logLocation = revisionDir + Slash.DirectorySeparatorChar + "log";
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fs = new FileStream( logLocation, FileMode.Open);
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sr = new StreamReader(fs);
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logMessage = sr.ReadToEnd();
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sr.Close();
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fs.Close();
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revisionDict.Add(revisionDir, logMessage);
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}
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catch (Exception)
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{}
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}
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return revisionDict;
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}
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}
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}
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