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Add a new experimental implementation of PGSQL FSAssets 

Signed-off-by: UbitUmarov <ajlduarte@sapo.pt>
0.9.0.1-postfixes
TomTheDragon 2017-11-02 23:53:19 -04:00 committed by UbitUmarov
parent 5360a8fea4
commit 56d2db3a18
2 changed files with 330 additions and 0 deletions
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316
OpenSim/Data/PGSQL/PGSQLFSAssetData.cs Normal file
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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.Reflection;
using System.Collections.Generic;
using System.Data;
using OpenSim.Framework;
using OpenSim.Framework.Console;
using log4net;
using OpenMetaverse;
using Npgsql;
using NpgsqlTypes;
namespace OpenSim.Data.PGSQL
{
public class PGSQLFSAssetData : IFSAssetDataPlugin
{
private const string _migrationStore = "FSAssetStore";
private static string m_Table = "fsassets";
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
private long m_ticksToEpoch;
private PGSQLManager m_database;
private string m_connectionString;
public PGSQLFSAssetData()
{
}
public void Initialise(string connect, string realm, int UpdateAccessTime)
{
DaysBetweenAccessTimeUpdates = UpdateAccessTime;
m_ticksToEpoch = new System.DateTime(1970, 1, 1).Ticks;
m_connectionString = connect;
m_database = new PGSQLManager(m_connectionString);
//New migration to check for DB changes
m_database.CheckMigration(_migrationStore);
}
public void Initialise()
{
throw new NotImplementedException();
}
/// <summary>
/// Number of days that must pass before we update the access time on an asset when it has been fetched
/// Config option to change this is "DaysBetweenAccessTimeUpdates"
/// </summary>
private int DaysBetweenAccessTimeUpdates = 0;
protected virtual Assembly Assembly
{
get { return GetType().Assembly; }
}
#region IPlugin Members
public string Version { get { return "1.0.0.0"; } }
public void Dispose() { }
public string Name
{
get { return "PGSQL FSAsset storage engine"; }
}
#endregion
#region IFSAssetDataPlugin Members
public AssetMetadata Get(string id, out string hash)
{
hash = String.Empty;
AssetMetadata meta = null;
UUID uuid = new UUID(id);
string query = String.Format("select \"id\", \"type\", \"hash\", \"create_time\", \"access_time\", \"asset_flags\" from {0} where \"id\" = :id", m_Table);
using (NpgsqlConnection dbcon = new NpgsqlConnection(m_connectionString))
using (NpgsqlCommand cmd = new NpgsqlCommand(query, dbcon))
{
dbcon.Open();
cmd.Parameters.Add(m_database.CreateParameter("id", uuid));
using (NpgsqlDataReader reader = cmd.ExecuteReader(CommandBehavior.Default))
{
if (reader.Read())
{
meta = new AssetMetadata();
hash = reader["hash"].ToString();
meta.ID = id;
meta.FullID = uuid;
meta.Name = String.Empty;
meta.Description = String.Empty;
meta.Type = (sbyte)Convert.ToInt32(reader["type"]);
meta.ContentType = SLUtil.SLAssetTypeToContentType(meta.Type);
meta.CreationDate = Util.ToDateTime(Convert.ToInt32(reader["create_time"]));
meta.Flags = (AssetFlags)Convert.ToInt32(reader["asset_flags"]);
int atime = Convert.ToInt32(reader["access_time"]);
UpdateAccessTime(atime, uuid);
}
}
}
return meta;
}
private void UpdateAccessTime(int AccessTime, UUID id)
{
// Reduce DB work by only updating access time if asset hasn't recently been accessed
// 0 By Default, Config option is "DaysBetweenAccessTimeUpdates"
if (DaysBetweenAccessTimeUpdates > 0 && (DateTime.UtcNow - Utils.UnixTimeToDateTime(AccessTime)).TotalDays < DaysBetweenAccessTimeUpdates)
return;
string query = String.Format("UPDATE {0} SET \"access_time\" = :access_time WHERE \"id\" = :id", m_Table);
using (NpgsqlConnection dbcon = new NpgsqlConnection(m_connectionString))
using (NpgsqlCommand cmd = new NpgsqlCommand(query, dbcon))
{
dbcon.Open();
int now = (int)((System.DateTime.Now.Ticks - m_ticksToEpoch) / 10000000);
cmd.Parameters.Add(m_database.CreateParameter("id", id));
cmd.Parameters.Add(m_database.CreateParameter("access_time", now));
cmd.ExecuteNonQuery();
}
}
public bool Store(AssetMetadata meta, string hash)
{
try
{
bool found = false;
string oldhash;
AssetMetadata existingAsset = Get(meta.ID, out oldhash);
string query = String.Format("UPDATE {0} SET \"access_time\" = :access_time WHERE \"id\" = :id", m_Table);
if (existingAsset == null)
{
query = String.Format("insert into {0} (\"id\", \"type\", \"hash\", \"asset_flags\", \"create_time\", \"access_time\") values ( :id, :type, :hash, :asset_flags, :create_time, :access_time)", m_Table);
found = true;
}
using (NpgsqlConnection dbcon = new NpgsqlConnection(m_connectionString))
using (NpgsqlCommand cmd = new NpgsqlCommand(query, dbcon))
{
dbcon.Open();
int now = (int)((System.DateTime.Now.Ticks - m_ticksToEpoch) / 10000000);
cmd.Parameters.Add(m_database.CreateParameter("id", meta.FullID));
cmd.Parameters.Add(m_database.CreateParameter("type", meta.Type));
cmd.Parameters.Add(m_database.CreateParameter("hash", hash));
cmd.Parameters.Add(m_database.CreateParameter("asset_flags", Convert.ToInt32(meta.Flags)));
cmd.Parameters.Add(m_database.CreateParameter("create_time", now));
cmd.Parameters.Add(m_database.CreateParameter("access_time", now));
cmd.ExecuteNonQuery();
}
return found;
}
catch(Exception e)
{
m_log.Error("[PGSQL FSASSETS] Failed to store asset with ID " + meta.ID);
m_log.Error(e.ToString());
return false;
}
}
/// <summary>
/// Check if the assets exist in the database.
/// </summary>
/// <param name="uuids">The asset UUID's</param>
/// <returns>For each asset: true if it exists, false otherwise</returns>
public bool[] AssetsExist(UUID[] uuids)
{
if (uuids.Length == 0)
return new bool[0];
HashSet<UUID> exists = new HashSet<UUID>();
string ids = "'" + string.Join("','", uuids) + "'";
string query = string.Format("select \"id\" from {1} where id in ({0})", ids, m_Table);
using (NpgsqlConnection dbcon = new NpgsqlConnection(m_connectionString))
using (NpgsqlCommand cmd = new NpgsqlCommand(query, dbcon))
{
dbcon.Open();
using (NpgsqlDataReader reader = cmd.ExecuteReader(CommandBehavior.Default))
{
while (reader.Read())
{
UUID id = DBGuid.FromDB(reader["id"]);;
exists.Add(id);
}
}
}
bool[] results = new bool[uuids.Length];
for (int i = 0; i < uuids.Length; i++)
results[i] = exists.Contains(uuids[i]);
return results;
}
public int Count()
{
int count = 0;
string query = String.Format("select count(*) as count from {0}", m_Table);
using (NpgsqlConnection dbcon = new NpgsqlConnection(m_connectionString))
using (NpgsqlCommand cmd = new NpgsqlCommand(query, dbcon))
{
dbcon.Open();
IDataReader reader = cmd.ExecuteReader();
reader.Read();
count = Convert.ToInt32(reader["count"]);
reader.Close();
}
return count;
}
public bool Delete(string id)
{
string query = String.Format("delete from {0} where \"id\" = :id", m_Table);
using (NpgsqlConnection dbcon = new NpgsqlConnection(m_connectionString))
using (NpgsqlCommand cmd = new NpgsqlCommand(query, dbcon))
{
dbcon.Open();
cmd.Parameters.Add(m_database.CreateParameter("id", new UUID(id)));
cmd.ExecuteNonQuery();
}
return true;
}
public void Import(string conn, string table, int start, int count, bool force, FSStoreDelegate store)
{
int imported = 0;
string limit = String.Empty;
if(count != -1)
{
limit = String.Format(" limit {0} offset {1}", start, count);
}
string query = String.Format("select * from {0}{1}", table, limit);
try
{
using (NpgsqlConnection remote = new NpgsqlConnection(conn))
using (NpgsqlCommand cmd = new NpgsqlCommand(query, remote))
{
remote.Open();
MainConsole.Instance.Output("Querying database");
MainConsole.Instance.Output("Reading data");
using (NpgsqlDataReader reader = cmd.ExecuteReader(CommandBehavior.Default))
{
while (reader.Read())
{
if ((imported % 100) == 0)
{
MainConsole.Instance.Output(String.Format("{0} assets imported so far", imported));
}
AssetBase asset = new AssetBase();
AssetMetadata meta = new AssetMetadata();
meta.ID = reader["id"].ToString();
meta.FullID = new UUID(meta.ID);
meta.Name = String.Empty;
meta.Description = String.Empty;
meta.Type = (sbyte)Convert.ToInt32(reader["assetType"]);
meta.ContentType = SLUtil.SLAssetTypeToContentType(meta.Type);
meta.CreationDate = Util.ToDateTime(Convert.ToInt32(reader["create_time"]));
asset.Metadata = meta;
asset.Data = (byte[])reader["data"];
store(asset, force);
imported++;
}
}
}
}
catch (Exception e)
{
m_log.ErrorFormat("[PGSQL FSASSETS]: Error importing assets: {0}",
e.Message.ToString());
return;
}
MainConsole.Instance.Output(String.Format("Import done, {0} assets imported", imported));
}
#endregion
}
}

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OpenSim/Data/PGSQL/Resources/FSAssetStore.migrations Normal file
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:VERSION 1
BEGIN TRANSACTION;
CREATE TABLE fsassets (
"id" uuid NOT NULL PRIMARY KEY,
"type" integer NOT NULL,
"hash" char(64) NOT NULL,
"create_time" integer NOT NULL DEFAULT '0',
"access_time" integer NOT NULL DEFAULT '0',
"asset_flags" integer NOT NULL DEFAULT '0'
);
COMMIT;