2 files changed, 330 insertions, 0 deletions

diff --git a/OpenSim/Data/PGSQL/PGSQLFSAssetData.cs b/OpenSim/Data/PGSQL/PGSQLFSAssetData.cs
new file mode 100644
index 0000000..59b857c
--- /dev/null
+++ b/OpenSim/Data/PGSQL/PGSQLFSAssetData.cs
@@ -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 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
+    }
+}
diff --git a/OpenSim/Data/PGSQL/Resources/FSAssetStore.migrations b/OpenSim/Data/PGSQL/Resources/FSAssetStore.migrations
new file mode 100644
index 0000000..3a072e5
--- /dev/null
+++ b/OpenSim/Data/PGSQL/Resources/FSAssetStore.migrations
@@ -0,0 +1,14 @@
+: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;