1 files changed, 256 insertions, 0 deletions

diff --git a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Asset/LocalAssetServiceConnector.cs b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Asset/LocalAssetServiceConnector.cs
new file mode 100644
index 0000000..13c4b52
--- /dev/null
+++ b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Asset/LocalAssetServiceConnector.cs
@@ -0,0 +1,256 @@
+/*
+ * 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.Reflection;
+using OpenSim.Framework;
+using OpenSim.Server.Base;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.Framework.Scenes;
+using OpenSim.Services.Interfaces;
+
+namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Asset
+{
+    public class LocalAssetServicesConnector :
+            ISharedRegionModule, IAssetService
+    {
+        private static readonly ILog m_log =
+                LogManager.GetLogger(
+                MethodBase.GetCurrentMethod().DeclaringType);
+
+        private IImprovedAssetCache m_Cache = null;
+
+        private IAssetService m_AssetService;
+
+        private bool m_Enabled = false;
+
+        public string Name
+        {
+            get { return "LocalAssetServicesConnector"; }
+        }
+
+        public void Initialise(IConfigSource source)
+        {
+            IConfig moduleConfig = source.Configs["Modules"];
+            if (moduleConfig != null)
+            {
+                string name = moduleConfig.GetString("AssetServices", "");
+                if (name == Name)
+                {
+                    IConfig assetConfig = source.Configs["AssetService"];
+                    if (assetConfig == null)
+                    {
+                        m_log.Error("[ASSET CONNECTOR]: AssetService missing from OpenSim.ini");
+                        return;
+                    }
+
+                    string serviceDll = assetConfig.GetString("LocalServiceModule",
+                            String.Empty);
+
+                    if (serviceDll == String.Empty)
+                    {
+                        m_log.Error("[ASSET CONNECTOR]: No LocalServiceModule named in section AssetService");
+                        return;
+                    }
+
+                    Object[] args = new Object[] { source };
+                    m_AssetService =
+                            ServerUtils.LoadPlugin<IAssetService>(serviceDll,
+                            args);
+
+                    if (m_AssetService == null)
+                    {
+                        m_log.Error("[ASSET CONNECTOR]: Can't load asset service");
+                        return;
+                    }
+                    m_Enabled = true;
+                    m_log.Info("[ASSET CONNECTOR]: Local asset connector enabled");
+                }
+            }
+        }
+
+        public void PostInitialise()
+        {
+        }
+
+        public void Close()
+        {
+        }
+
+        public void AddRegion(Scene scene)
+        {
+            if (!m_Enabled)
+                return;
+
+            scene.RegisterModuleInterface<IAssetService>(this);
+        }
+
+        public void RemoveRegion(Scene scene)
+        {
+        }
+
+        public void RegionLoaded(Scene scene)
+        {
+            if (!m_Enabled)
+                return;
+
+            if (m_Cache == null)
+            {
+                m_Cache = scene.RequestModuleInterface<IImprovedAssetCache>();
+
+                if (!(m_Cache is ISharedRegionModule))
+                    m_Cache = null;
+            }
+
+            m_log.InfoFormat("[ASSET CONNECTOR]: Enabled local assets for region {0}", scene.RegionInfo.RegionName);
+
+            if (m_Cache != null)
+            {
+                m_log.InfoFormat("[ASSET CONNECTOR]: Enabled asset caching for region {0}", scene.RegionInfo.RegionName);
+            }
+            else
+            {
+                // Short-circuit directly to storage layer
+                //
+                scene.UnregisterModuleInterface<IAssetService>(this);
+                scene.RegisterModuleInterface<IAssetService>(m_AssetService);
+            }
+        }
+
+        public AssetBase Get(string id)
+        {
+            AssetBase asset = null;
+            if (m_Cache != null)
+                asset = m_Cache.Get(id);
+
+            if (asset == null)
+            {
+                asset = m_AssetService.Get(id);
+                if ((m_Cache != null) && (asset != null))
+                    m_Cache.Cache(asset);
+            }
+            return asset;
+        }
+
+        public AssetMetadata GetMetadata(string id)
+        {
+            AssetBase asset = null;
+            if (m_Cache != null)
+                asset = m_Cache.Get(id);
+
+            if (asset != null)
+                return asset.Metadata;
+
+            asset = m_AssetService.Get(id);
+            if (asset != null) 
+            {
+                if (m_Cache != null)
+                    m_Cache.Cache(asset);
+                return asset.Metadata;
+            }
+
+            return null;
+        }
+
+        public byte[] GetData(string id)
+        {
+            AssetBase asset = m_Cache.Get(id);
+
+            if (asset != null)
+                return asset.Data;
+
+            asset = m_AssetService.Get(id);
+            if (asset != null)
+            {
+                if (m_Cache != null)
+                    m_Cache.Cache(asset);
+                return asset.Data;
+            }
+
+            return null;
+        }
+
+        public bool Get(string id, Object sender, AssetRetrieved handler)
+        {
+            AssetBase asset = null;
+            
+            if (m_Cache != null)
+                m_Cache.Get(id);
+
+            if (asset != null)
+            {
+                handler.BeginInvoke(id, sender, asset, null, null);
+                return true;
+            }
+
+            return m_AssetService.Get(id, sender, delegate (string assetID, Object s, AssetBase a)
+            {
+                if ((a != null) && (m_Cache != null))
+                    m_Cache.Cache(a);
+                
+                handler.BeginInvoke(assetID, s, a, null, null);
+            });
+        }
+
+        public string Store(AssetBase asset)
+        {
+            if (m_Cache != null)
+                m_Cache.Cache(asset);
+            
+            if (asset.Temporary || asset.Local)
+                return asset.ID;
+            
+            return m_AssetService.Store(asset);
+        }
+
+        public bool UpdateContent(string id, byte[] data)
+        {
+            AssetBase asset = null;
+            if (m_Cache != null)
+                m_Cache.Get(id);
+            if (asset != null)
+            {
+                asset.Data = data;
+                if (m_Cache != null)
+                    m_Cache.Cache(asset);
+            }
+
+            return m_AssetService.UpdateContent(id, data);
+        }
+
+        public bool Delete(string id)
+        {
+            if (m_Cache != null)
+                m_Cache.Expire(id);
+
+            return m_AssetService.Delete(id);
+        }
+    }
+}