1 files changed, 263 insertions, 0 deletions

diff --git a/OpenSim/Services/Connectors/Asset/HGAssetServiceConnector.cs b/OpenSim/Services/Connectors/Asset/HGAssetServiceConnector.cs
new file mode 100644
index 0000000..3710c86
--- /dev/null
+++ b/OpenSim/Services/Connectors/Asset/HGAssetServiceConnector.cs
@@ -0,0 +1,263 @@
+/*
+ * 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 log4net;
+using Nini.Config;
+using System;
+using System.Collections.Generic;
+using System.Collections.Specialized;
+using System.Reflection;
+using System.Web;
+using OpenSim.Framework;
+using OpenSim.Services.Interfaces;
+using OpenSim.Services.Connectors.Hypergrid;
+using OpenSim.Services.Connectors.SimianGrid;
+using OpenMetaverse;
+
+namespace OpenSim.Services.Connectors
+{
+    public class HGAssetServiceConnector : IAssetService
+    {
+        private static readonly ILog m_log =
+                LogManager.GetLogger(
+                MethodBase.GetCurrentMethod().DeclaringType);
+
+        private Dictionary<IAssetService, object> m_endpointSerializer = new Dictionary<IAssetService, object>();
+        private object EndPointLock(IAssetService connector)
+        {
+            lock (m_endpointSerializer)
+            {
+                object eplock = null;
+
+                if (! m_endpointSerializer.TryGetValue(connector, out eplock))
+                {
+                    eplock = new object();
+                    m_endpointSerializer.Add(connector, eplock);
+                    // m_log.WarnFormat("[WEB UTIL] add a new host to end point serializer {0}",endpoint);
+                }
+
+                return eplock;
+            }
+        }
+
+        private Dictionary<string, IAssetService> m_connectors = new Dictionary<string, IAssetService>();
+
+        public HGAssetServiceConnector(IConfigSource source)
+        {
+            IConfig moduleConfig = source.Configs["Modules"];
+            if (moduleConfig != null)
+            {
+                // string name = moduleConfig.GetString("AssetServices", "");
+
+                IConfig assetConfig = source.Configs["AssetService"];
+                if (assetConfig == null)
+                {
+                    m_log.Error("[HG ASSET SERVICE]: AssetService missing from OpenSim.ini");
+                    return;
+                }
+
+                m_log.Info("[HG ASSET SERVICE]: HG asset service enabled");
+            }
+        }
+
+        private IAssetService GetConnector(string url)
+        {
+            IAssetService connector = null;
+            lock (m_connectors)
+            {
+                if (m_connectors.ContainsKey(url))
+                {
+                    connector = m_connectors[url];
+                }
+                else
+                {
+                    // Still not as flexible as I would like this to be,
+                    // but good enough for now
+                    string connectorType = new HeloServicesConnector(url).Helo();
+                    m_log.DebugFormat("[HG ASSET SERVICE]: HELO returned {0}", connectorType);
+                    if (connectorType == "opensim-simian")
+                    {
+                        connector = new SimianAssetServiceConnector(url);
+                    }
+                    else
+                        connector = new AssetServicesConnector(url);
+
+                    m_connectors.Add(url, connector);
+                }
+            }
+            return connector;
+        }
+
+        public AssetBase Get(string id)
+        {
+            string url = string.Empty;
+            string assetID = string.Empty;
+
+            if (Util.ParseForeignAssetID(id, out url, out assetID))
+            {
+                IAssetService connector = GetConnector(url);
+                return connector.Get(assetID);
+            }
+
+            return null;
+        }
+
+        public AssetBase GetCached(string id)
+        {
+            string url = string.Empty;
+            string assetID = string.Empty;
+
+            if (Util.ParseForeignAssetID(id, out url, out assetID))
+            {
+                IAssetService connector = GetConnector(url);
+                return connector.GetCached(assetID);
+            }
+
+            return null;
+        }
+
+        public AssetMetadata GetMetadata(string id)
+        {
+            string url = string.Empty;
+            string assetID = string.Empty;
+
+            if (Util.ParseForeignAssetID(id, out url, out assetID))
+            {
+                IAssetService connector = GetConnector(url);
+                return connector.GetMetadata(assetID);
+            }
+
+            return null;
+        }
+
+        public byte[] GetData(string id)
+        {
+            return null;
+        }
+
+        public bool Get(string id, Object sender, AssetRetrieved handler)
+        {
+            string url = string.Empty;
+            string assetID = string.Empty;
+
+            if (Util.ParseForeignAssetID(id, out url, out assetID))
+            {
+                IAssetService connector = GetConnector(url);
+                return connector.Get(assetID, sender, handler);
+            }
+
+            return false;
+        }
+
+
+        private struct AssetAndIndex
+        {
+            public UUID assetID;
+            public int index;
+
+            public AssetAndIndex(UUID assetID, int index)
+            {
+                this.assetID = assetID;
+                this.index = index;
+            }
+        }
+
+        public virtual bool[] AssetsExist(string[] ids)
+        {
+            // This method is a bit complicated because it works even if the assets belong to different
+            // servers; that requires sending separate requests to each server.
+
+            // Group the assets by the server they belong to
+
+            var url2assets = new Dictionary<string, List<AssetAndIndex>>();
+
+            for (int i = 0; i < ids.Length; i++)
+            {
+                string url = string.Empty;
+                string assetID = string.Empty;
+
+                if (Util.ParseForeignAssetID(ids[i], out url, out assetID))
+                {
+                    if (!url2assets.ContainsKey(url))
+                        url2assets.Add(url, new List<AssetAndIndex>());
+                    url2assets[url].Add(new AssetAndIndex(UUID.Parse(assetID), i));
+                }
+            }
+
+            // Query each of the servers in turn
+
+            bool[] exist = new bool[ids.Length];
+
+            foreach (string url in url2assets.Keys)
+            {
+                IAssetService connector = GetConnector(url);
+                lock (EndPointLock(connector))
+                {
+                    List<AssetAndIndex> curAssets = url2assets[url];
+                    string[] assetIDs = curAssets.ConvertAll(a => a.assetID.ToString()).ToArray();
+                    bool[] curExist = connector.AssetsExist(assetIDs);
+
+                    int i = 0;
+                    foreach (AssetAndIndex ai in curAssets)
+                    {
+                        exist[ai.index] = curExist[i];
+                        ++i;
+                    }
+                }
+            }
+
+            return exist;
+        }
+
+        public string Store(AssetBase asset)
+        {
+            string url = string.Empty;
+            string assetID = string.Empty;
+
+            if (Util.ParseForeignAssetID(asset.ID, out url, out assetID))
+            {
+                IAssetService connector = GetConnector(url);
+                // Restore the assetID to a simple UUID
+                asset.ID = assetID;
+                lock (EndPointLock(connector))
+                    return connector.Store(asset);
+            }
+
+            return String.Empty;
+        }
+
+        public bool UpdateContent(string id, byte[] data)
+        {
+            return false;
+        }
+
+        public bool Delete(string id)
+        {
+            return false;
+        }
+    }
+}