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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 log4net;
- using Mono.Addins;
- 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
- {
- [Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "LocalAssetServicesConnector")]
- 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 Type ReplaceableInterface
- {
- get { return null; }
- }
- 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("[LOCAL ASSET SERVICES CONNECTOR]: AssetService missing from OpenSim.ini");
- return;
- }
- string serviceDll = assetConfig.GetString("LocalServiceModule", String.Empty);
- if (serviceDll == String.Empty)
- {
- m_log.Error("[LOCAL ASSET SERVICES CONNECTOR]: No LocalServiceModule named in section AssetService");
- return;
- }
- else
- {
- m_log.DebugFormat("[LOCAL ASSET SERVICES CONNECTOR]: Loading asset service at {0}", serviceDll);
- }
- Object[] args = new Object[] { source };
- m_AssetService = ServerUtils.LoadPlugin<IAssetService>(serviceDll, args);
- if (m_AssetService == null)
- {
- m_log.Error("[LOCAL ASSET SERVICES CONNECTOR]: Can't load asset service");
- return;
- }
- m_Enabled = true;
- m_log.Info("[LOCAL ASSET SERVICES 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.DebugFormat(
- "[LOCAL ASSET SERVICES CONNECTOR]: Enabled connector for region {0}", scene.RegionInfo.RegionName);
- if (m_Cache != null)
- {
- m_log.DebugFormat(
- "[LOCAL ASSET SERVICES CONNECTOR]: Enabled asset caching for region {0}",
- scene.RegionInfo.RegionName);
- }
- else
- {
- // Short-circuit directly to storage layer. This ends up storing temporary and local assets.
- //
- scene.UnregisterModuleInterface<IAssetService>(this);
- scene.RegisterModuleInterface<IAssetService>(m_AssetService);
- }
- }
- public AssetBase Get(string id)
- {
- // m_log.DebugFormat("[LOCAL ASSET SERVICES CONNECTOR]: Synchronously requesting asset {0}", 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);
- // if (null == asset)
- // m_log.WarnFormat("[LOCAL ASSET SERVICES CONNECTOR]: Could not synchronously find asset with id {0}", id);
- }
-
- return asset;
- }
- public AssetBase GetCached(string id)
- {
- // m_log.DebugFormat("[LOCAL ASSET SERVICES CONNECTOR]: Cache request for {0}", id);
- if (m_Cache != null)
- return m_Cache.Get(id);
- return null;
- }
- 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)
- {
- // m_log.DebugFormat("[LOCAL ASSET SERVICES CONNECTOR]: Requesting data for asset {0}", id);
- AssetBase asset = null;
- if (m_Cache != null)
- 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)
- {
- // m_log.DebugFormat("[LOCAL ASSET SERVICES CONNECTOR]: Asynchronously requesting asset {0}", id);
-
- if (m_Cache != null)
- {
- AssetBase asset = m_Cache.Get(id);
- if (asset != null)
- {
- Util.FireAndForget(delegate { handler(id, sender, asset); });
- 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);
- // if (null == a)
- // m_log.WarnFormat("[LOCAL ASSET SERVICES CONNECTOR]: Could not asynchronously find asset with id {0}", id);
- Util.FireAndForget(delegate { handler(assetID, s, a); });
- });
- }
- public string Store(AssetBase asset)
- {
- if (m_Cache != null)
- m_Cache.Cache(asset);
-
- if (asset.Local)
- {
- // m_log.DebugFormat(
- // "[LOCAL ASSET SERVICE CONNECTOR]: Returning asset {0} {1} without querying database since status Temporary = {2}, Local = {3}",
- // asset.Name, asset.ID, asset.Temporary, asset.Local);
- return asset.ID;
- }
- else
- {
- // m_log.DebugFormat(
- // "[LOCAL ASSET SERVICE CONNECTOR]: Passing {0} {1} on to asset service for storage, status Temporary = {2}, Local = {3}",
- // asset.Name, asset.ID, asset.Temporary, asset.Local);
-
- 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);
- }
- }
- }
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