344 lines
11 KiB
C#
344 lines
11 KiB
C#
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/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSimulator Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using log4net;
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using Nini.Config;
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using System;
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using System.Collections.Generic;
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using System.Reflection;
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using OpenSim.Framework;
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using OpenSim.Server.Base;
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using OpenSim.Region.Framework.Interfaces;
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using OpenSim.Region.Framework.Scenes;
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using OpenSim.Services.Interfaces;
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using OpenMetaverse;
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namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Asset
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{
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public class HGAssetBroker :
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ISharedRegionModule, IAssetService
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{
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private static readonly ILog m_log =
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LogManager.GetLogger(
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MethodBase.GetCurrentMethod().DeclaringType);
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private IImprovedAssetCache m_Cache = null;
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private IAssetService m_GridService;
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private IAssetService m_HGService;
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private bool m_Enabled = false;
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public string Name
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{
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get { return "HGAssetBroker"; }
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}
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public void Initialise(IConfigSource source)
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{
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IConfig moduleConfig = source.Configs["Modules"];
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if (moduleConfig != null)
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{
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string name = moduleConfig.GetString("AssetServices", "");
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if (name == Name)
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{
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IConfig assetConfig = source.Configs["AssetService"];
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if (assetConfig == null)
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{
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m_log.Error("[HG ASSET CONNECTOR]: AssetService missing from OpenSim.ini");
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return;
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}
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string localDll = assetConfig.GetString("LocalGridAssetService",
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String.Empty);
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string HGDll = assetConfig.GetString("HypergridAssetService",
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String.Empty);
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if (localDll == String.Empty)
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{
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m_log.Error("[HG ASSET CONNECTOR]: No LocalGridAssetService named in section AssetService");
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return;
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}
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if (HGDll == String.Empty)
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{
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m_log.Error("[HG ASSET CONNECTOR]: No HypergridAssetService named in section AssetService");
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return;
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}
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Object[] args = new Object[] { source };
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m_GridService =
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ServerUtils.LoadPlugin<IAssetService>(localDll,
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args);
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m_HGService =
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ServerUtils.LoadPlugin<IAssetService>(HGDll,
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args);
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if (m_GridService == null)
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{
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m_log.Error("[HG ASSET CONNECTOR]: Can't load local asset service");
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return;
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}
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if (m_HGService == null)
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{
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m_log.Error("[HG ASSET CONNECTOR]: Can't load hypergrid asset service");
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return;
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}
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m_Enabled = true;
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m_log.Info("[HG ASSET CONNECTOR]: HG asset broker enabled");
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}
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}
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}
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public void PostInitialise()
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{
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}
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public void Close()
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{
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}
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public void AddRegion(Scene scene)
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{
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if (!m_Enabled)
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return;
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scene.RegisterModuleInterface<IAssetService>(this);
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}
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public void RemoveRegion(Scene scene)
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{
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}
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public void RegionLoaded(Scene scene)
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{
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if (!m_Enabled)
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return;
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if (m_Cache == null)
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{
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m_Cache = scene.RequestModuleInterface<IImprovedAssetCache>();
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if (!(m_Cache is ISharedRegionModule))
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m_Cache = null;
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}
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m_log.InfoFormat("[HG ASSET CONNECTOR]: Enabled hypergrid asset broker for region {0}", scene.RegionInfo.RegionName);
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if (m_Cache != null)
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{
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m_log.InfoFormat("[HG ASSET CONNECTOR]: Enabled asset caching for region {0}", scene.RegionInfo.RegionName);
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}
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}
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private bool IsHG(string id)
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{
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Uri assetUri;
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if (Uri.TryCreate(id, UriKind.Absolute, out assetUri) &&
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assetUri.Scheme == Uri.UriSchemeHttp)
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return true;
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return false;
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}
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public AssetBase Get(string id)
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{
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//m_log.DebugFormat("[HG ASSET CONNECTOR]: Get {0}", id);
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AssetBase asset = null;
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if (m_Cache != null)
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{
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asset = m_Cache.Get(id);
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if (asset != null)
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return asset;
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}
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if (IsHG(id))
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{
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asset = m_HGService.Get(id);
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if (asset != null)
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{
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// Now store it locally
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// For now, let me just do it for textures and scripts
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if (((AssetType)asset.Type == AssetType.Texture) ||
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((AssetType)asset.Type == AssetType.LSLBytecode) ||
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((AssetType)asset.Type == AssetType.LSLText))
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{
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m_GridService.Store(asset);
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}
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}
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}
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else
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asset = m_GridService.Get(id);
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if (asset != null)
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{
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if (m_Cache != null)
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m_Cache.Cache(asset);
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}
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return asset;
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}
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public AssetMetadata GetMetadata(string id)
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{
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AssetBase asset = null;
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if (m_Cache != null)
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{
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if (m_Cache != null)
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m_Cache.Get(id);
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if (asset != null)
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return asset.Metadata;
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}
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AssetMetadata metadata;
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if (IsHG(id))
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metadata = m_HGService.GetMetadata(id);
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else
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metadata = m_GridService.GetMetadata(id);
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return metadata;
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}
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public byte[] GetData(string id)
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{
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AssetBase asset = null;
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if (m_Cache != null)
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{
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if (m_Cache != null)
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m_Cache.Get(id);
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if (asset != null)
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return asset.Data;
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}
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if (IsHG(id))
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asset = m_HGService.Get(id);
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else
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asset = m_GridService.Get(id);
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if (asset != null)
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{
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if (m_Cache != null)
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m_Cache.Cache(asset);
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return asset.Data;
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}
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return null;
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}
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public bool Get(string id, Object sender, AssetRetrieved handler)
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{
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AssetBase asset = null;
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if (m_Cache != null)
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asset = m_Cache.Get(id);
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if (asset != null)
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{
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handler.BeginInvoke(id, sender, asset, null, null);
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return true;
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}
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if (IsHG(id))
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{
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return m_HGService.Get(id, sender, delegate (string assetID, Object s, AssetBase a)
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{
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if (a != null && m_Cache != null)
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m_Cache.Cache(a);
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handler(assetID, s, a);
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});
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}
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else
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{
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return m_GridService.Get(id, sender, delegate (string assetID, Object s, AssetBase a)
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{
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if (a != null && m_Cache != null)
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m_Cache.Cache(a);
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handler(assetID, s, a);
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});
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}
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}
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public string Store(AssetBase asset)
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{
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bool isHG = IsHG(asset.ID);
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if ((m_Cache != null) && !isHG)
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// Don't store it in the cache if the asset is to
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// be sent to the other grid, because this is already
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// a copy of the local asset.
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m_Cache.Cache(asset);
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if (asset.Temporary || asset.Local)
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return asset.ID;
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if (IsHG(asset.ID))
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return m_HGService.Store(asset);
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else
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return m_GridService.Store(asset);
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}
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public bool UpdateContent(string id, byte[] data)
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{
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AssetBase asset = null;
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if (m_Cache != null)
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asset = m_Cache.Get(id);
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if (asset != null)
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{
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asset.Data = data;
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m_Cache.Cache(asset);
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}
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if (IsHG(id))
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return m_HGService.UpdateContent(id, data);
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else
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return m_GridService.UpdateContent(id, data);
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}
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public bool Delete(string id)
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{
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if (m_Cache != null)
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m_Cache.Expire(id);
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if (IsHG(id))
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return m_HGService.Delete(id);
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else
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return m_GridService.Delete(id);
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}
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}
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}
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