666 lines
24 KiB
C#
666 lines
24 KiB
C#
/*
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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 System;
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using System.Collections.Generic;
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using System.Collections.Specialized;
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using System.IO;
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using System.Net;
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using System.Reflection;
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using log4net;
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using Mono.Addins;
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using Nini.Config;
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using OpenSim.Framework;
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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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using OpenMetaverse.StructuredData;
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namespace OpenSim.Services.Connectors.SimianGrid
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{
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/// <summary>
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/// Connects to the SimianGrid asset service
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/// </summary>
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[Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "SimianAssetServiceConnector")]
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public class SimianAssetServiceConnector : IAssetService, ISharedRegionModule
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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 static string ZeroID = UUID.Zero.ToString();
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private string m_serverUrl = String.Empty;
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private IImprovedAssetCache m_cache;
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private bool m_Enabled = false;
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#region ISharedRegionModule
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public Type ReplaceableInterface { get { return null; } }
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public void RegionLoaded(Scene scene)
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{
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if (m_cache == null)
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{
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IImprovedAssetCache cache = scene.RequestModuleInterface<IImprovedAssetCache>();
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if (cache is ISharedRegionModule)
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m_cache = cache;
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}
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}
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public void PostInitialise() { }
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public void Close() { }
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public SimianAssetServiceConnector() { }
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public string Name { get { return "SimianAssetServiceConnector"; } }
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public void AddRegion(Scene scene) { if (m_Enabled) { scene.RegisterModuleInterface<IAssetService>(this); } }
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public void RemoveRegion(Scene scene) { if (m_Enabled) { scene.UnregisterModuleInterface<IAssetService>(this); } }
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#endregion ISharedRegionModule
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public SimianAssetServiceConnector(IConfigSource source)
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{
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CommonInit(source);
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}
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public SimianAssetServiceConnector(string url)
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{
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if (!url.EndsWith("/") && !url.EndsWith("="))
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url = url + '/';
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m_serverUrl = url;
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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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CommonInit(source);
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}
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}
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private void CommonInit(IConfigSource source)
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{
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IConfig gridConfig = source.Configs["AssetService"];
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if (gridConfig != null)
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{
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string serviceUrl = gridConfig.GetString("AssetServerURI");
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if (!String.IsNullOrEmpty(serviceUrl))
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{
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if (!serviceUrl.EndsWith("/") && !serviceUrl.EndsWith("="))
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serviceUrl = serviceUrl + '/';
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m_serverUrl = serviceUrl;
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}
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}
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if (String.IsNullOrEmpty(m_serverUrl))
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m_log.Info("[SIMIAN ASSET CONNECTOR]: No AssetServerURI specified, disabling connector");
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else
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m_Enabled = true;
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}
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#region IAssetService
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public AssetBase Get(string id)
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{
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if (String.IsNullOrEmpty(m_serverUrl))
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{
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m_log.Error("[SIMIAN ASSET CONNECTOR]: No AssetServerURI configured");
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throw new InvalidOperationException();
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}
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// Cache fetch
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if (m_cache != null)
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{
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AssetBase 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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return SimianGetOperation(id);
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}
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public AssetBase GetCached(string id)
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{
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if (m_cache != null)
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return m_cache.Get(id);
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return null;
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}
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/// <summary>
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/// Get an asset's metadata
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/// </summary>
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/// <param name="id"></param>
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/// <returns></returns>
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public AssetMetadata GetMetadata(string id)
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{
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if (String.IsNullOrEmpty(m_serverUrl))
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{
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m_log.Error("[SIMIAN ASSET CONNECTOR]: No AssetServerURI configured");
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throw new InvalidOperationException();
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}
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// Cache fetch
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if (m_cache != null)
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{
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AssetBase asset = 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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// return GetRemoteMetadata(id);
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return SimianGetMetadataOperation(id);
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}
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public byte[] GetData(string id)
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{
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if (String.IsNullOrEmpty(m_serverUrl))
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{
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m_log.Error("[SIMIAN ASSET CONNECTOR]: No AssetServerURI configured");
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throw new InvalidOperationException();
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}
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AssetBase asset = Get(id);
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if (asset != null)
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return asset.Data;
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return null;
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}
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/// <summary>
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/// Get an asset asynchronously
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/// </summary>
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/// <param name="id">The asset id</param>
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/// <param name="sender">Represents the requester. Passed back via the handler</param>
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/// <param name="handler">The handler to call back once the asset has been retrieved</param>
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/// <returns>True if the id was parseable, false otherwise</returns>
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public bool Get(string id, Object sender, AssetRetrieved handler)
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{
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if (String.IsNullOrEmpty(m_serverUrl))
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{
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m_log.Error("[SIMIAN ASSET CONNECTOR]: No AssetServerURI configured");
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throw new InvalidOperationException();
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}
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// Cache fetch
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if (m_cache != null)
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{
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AssetBase asset = m_cache.Get(id);
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if (asset != null)
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{
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handler(id, sender, asset);
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return true;
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}
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}
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Util.FireAndForget(
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delegate(object o)
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{
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AssetBase asset = SimianGetOperation(id);
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handler(id, sender, asset);
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}
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);
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return true;
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}
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/// <summary>
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/// Creates a new asset
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/// </summary>
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/// Returns a random ID if none is passed into it
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/// <param name="asset"></param>
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/// <returns></returns>
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public string Store(AssetBase asset)
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{
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if (String.IsNullOrEmpty(m_serverUrl))
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{
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m_log.Error("[SIMIAN ASSET CONNECTOR]: No AssetServerURI configured");
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throw new InvalidOperationException();
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}
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bool storedInCache = false;
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// AssetID handling
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if (String.IsNullOrEmpty(asset.ID) || asset.ID == ZeroID)
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{
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asset.FullID = UUID.Random();
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asset.ID = asset.FullID.ToString();
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}
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// Cache handling
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if (m_cache != null)
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{
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m_cache.Cache(asset);
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storedInCache = true;
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}
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// Local asset handling
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if (asset.Local)
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{
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if (!storedInCache)
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{
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m_log.Error("Cannot store local " + asset.Metadata.ContentType + " asset without an asset cache");
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asset.ID = null;
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asset.FullID = UUID.Zero;
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}
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return asset.ID;
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}
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return SimianStoreOperation(asset);
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}
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/// <summary>
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/// Update an asset's content
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/// </summary>
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/// Attachments and bare scripts need this!!
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/// <param name="id"> </param>
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/// <param name="data"></param>
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/// <returns></returns>
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public bool UpdateContent(string id, byte[] data)
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{
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if (String.IsNullOrEmpty(m_serverUrl))
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{
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m_log.Error("[SIMIAN ASSET CONNECTOR]: No AssetServerURI configured");
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throw new InvalidOperationException();
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}
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AssetBase asset = Get(id);
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if (asset == null)
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{
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m_log.WarnFormat("[SIMIAN ASSET CONNECTOR]: Failed to fetch asset {0} for updating", id);
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return false;
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}
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asset.Data = data;
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string result = Store(asset);
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return !String.IsNullOrEmpty(result);
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}
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/// <summary>
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/// Delete an asset
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/// </summary>
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/// <param name="id"></param>
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/// <returns></returns>
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public bool Delete(string id)
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{
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if (String.IsNullOrEmpty(m_serverUrl))
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{
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m_log.Error("[SIMIAN ASSET CONNECTOR]: No AssetServerURI configured");
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throw new InvalidOperationException();
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}
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if (m_cache != null)
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m_cache.Expire(id);
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return SimianDeleteOperation(id);
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}
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#endregion IAssetService
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#region SimianOperations
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/// <summary>
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/// Invokes the xRemoveAsset operation on the simian server to delete an asset
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/// </summary>
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/// <param name="id"></param>
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/// <returns></returns>
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private bool SimianDeleteOperation(string id)
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{
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try
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{
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NameValueCollection requestArgs = new NameValueCollection
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{
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{ "RequestMethod", "xRemoveAsset" },
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{ "AssetID", id }
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};
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OSDMap response = SimianGrid.PostToService(m_serverUrl,requestArgs);
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if (! response["Success"].AsBoolean())
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{
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m_log.WarnFormat("[SIMIAN ASSET CONNECTOR]: failed to delete asset; {0}",response["Message"].AsString());
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return false;
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}
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return true;
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}
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catch (Exception ex)
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{
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m_log.WarnFormat("[SIMIAN ASSET CONNECTOR]: failed to delete asset {0}; {1}", id, ex.Message);
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}
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return false;
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}
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/// <summary>
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/// Invokes the xAddAsset operation on the simian server to create or update an asset
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/// </summary>
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/// <param name="id"></param>
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/// <returns></returns>
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private string SimianStoreOperation(AssetBase asset)
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{
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try
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{
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NameValueCollection requestArgs = new NameValueCollection
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{
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{ "RequestMethod", "xAddAsset" },
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{ "ContentType", asset.Metadata.ContentType },
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{ "EncodedData", Convert.ToBase64String(asset.Data) },
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{ "AssetID", asset.FullID.ToString() },
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{ "CreatorID", asset.Metadata.CreatorID },
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{ "Temporary", asset.Temporary ? "1" : "0" },
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{ "Name", asset.Name }
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};
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OSDMap response = SimianGrid.PostToService(m_serverUrl,requestArgs);
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if (! response["Success"].AsBoolean())
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{
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m_log.WarnFormat("[SIMIAN ASSET CONNECTOR] failed to store asset; {0}",response["Message"].AsString());
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return null;
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}
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// asset.ID is always set before calling this function
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return asset.ID;
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}
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catch (Exception ex)
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{
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m_log.ErrorFormat("[SIMIAN ASSET CONNECTOR] failed to store asset; {0}",ex.Message);
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}
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return null;
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}
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/// <summary>
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/// Invokes the xGetAsset operation on the simian server to get data associated with an asset
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/// </summary>
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/// <param name="id"></param>
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/// <returns></returns>
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private AssetBase SimianGetOperation(string id)
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{
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try
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{
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NameValueCollection requestArgs = new NameValueCollection
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{
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{ "RequestMethod", "xGetAsset" },
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{ "ID", id }
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};
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OSDMap response = SimianGrid.PostToService(m_serverUrl,requestArgs);
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if (! response["Success"].AsBoolean())
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{
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m_log.WarnFormat("[SIMIAN ASSET CONNECTOR] Failed to get asset; {0}",response["Message"].AsString());
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return null;
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}
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AssetBase asset = new AssetBase();
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asset.ID = id;
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asset.Name = String.Empty;
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asset.Metadata.ContentType = response["ContentType"].AsString(); // this will also set the asset Type property
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asset.CreatorID = response["CreatorID"].AsString();
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asset.Data = System.Convert.FromBase64String(response["EncodedData"].AsString());
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asset.Local = false;
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asset.Temporary = response["Temporary"];
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return asset;
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}
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catch (Exception ex)
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{
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m_log.WarnFormat("[SIMIAN ASSET CONNECTOR]: failed to retrieve asset {0}; {1}", id, ex.Message);
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}
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return null;
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}
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/// <summary>
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/// Invokes the xGetAssetMetadata operation on the simian server to retrieve metadata for an asset
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/// This operation is generally used to determine if an asset exists in the database
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/// </summary>
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/// <param name="id"></param>
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/// <returns></returns>
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private AssetMetadata SimianGetMetadataOperation(string id)
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{
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try
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{
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NameValueCollection requestArgs = new NameValueCollection
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{
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{ "RequestMethod", "xGetAssetMetadata" },
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{ "ID", id }
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};
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OSDMap response = SimianGrid.PostToService(m_serverUrl,requestArgs);
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if (! response["Success"].AsBoolean())
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{
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// this is not really an error, this call is used to test existence
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// m_log.DebugFormat("[SIMIAN ASSET CONNECTOR] Failed to get asset metadata; {0}",response["Message"].AsString());
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return null;
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}
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AssetMetadata metadata = new AssetMetadata();
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metadata.ID = id;
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metadata.ContentType = response["ContentType"].AsString();
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metadata.CreatorID = response["CreatorID"].AsString();
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metadata.Local = false;
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metadata.Temporary = response["Temporary"];
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string lastModifiedStr = response["Last-Modified"].AsString();
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if (! String.IsNullOrEmpty(lastModifiedStr))
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{
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DateTime lastModified;
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if (DateTime.TryParse(lastModifiedStr, out lastModified))
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metadata.CreationDate = lastModified;
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}
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return metadata;
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}
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catch (Exception ex)
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{
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m_log.WarnFormat("[SIMIAN ASSET CONNECTOR]: Failed to get asset metadata; {0}", ex.Message);
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}
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return null;
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}
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#endregion
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// private AssetMetadata GetRemoteMetadata(string id)
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// {
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// Uri url;
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// AssetMetadata metadata = null;
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// // Determine if id is an absolute URL or a grid-relative UUID
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// if (!Uri.TryCreate(id, UriKind.Absolute, out url))
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// url = new Uri(m_serverUrl + id);
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// try
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// {
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// HttpWebRequest request = UntrustedHttpWebRequest.Create(url);
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// request.Method = "HEAD";
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// using (WebResponse response = request.GetResponse())
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// {
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// using (Stream responseStream = response.GetResponseStream())
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// {
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// // Create the metadata object
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// metadata = new AssetMetadata();
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// metadata.ContentType = response.ContentType;
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// metadata.ID = id;
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// UUID uuid;
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// if (UUID.TryParse(id, out uuid))
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// metadata.FullID = uuid;
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// string lastModifiedStr = response.Headers.Get("Last-Modified");
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// if (!String.IsNullOrEmpty(lastModifiedStr))
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// {
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// DateTime lastModified;
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// if (DateTime.TryParse(lastModifiedStr, out lastModified))
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// metadata.CreationDate = lastModified;
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// }
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// }
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// }
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// }
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// catch (Exception ex)
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// {
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// m_log.Warn("[SIMIAN ASSET CONNECTOR]: Asset HEAD from " + url + " failed: " + ex.Message);
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// }
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// return metadata;
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// }
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// private AssetBase GetRemote(string id)
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// {
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// AssetBase asset = null;
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// Uri url;
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// // Determine if id is an absolute URL or a grid-relative UUID
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// if (!Uri.TryCreate(id, UriKind.Absolute, out url))
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// url = new Uri(m_serverUrl + id);
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// try
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// {
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// HttpWebRequest request = UntrustedHttpWebRequest.Create(url);
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// using (WebResponse response = request.GetResponse())
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// {
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// using (Stream responseStream = response.GetResponseStream())
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// {
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// string creatorID = response.Headers.GetOne("X-Asset-Creator-Id") ?? String.Empty;
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// // Create the asset object
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// asset = new AssetBase(id, String.Empty, SLUtil.ContentTypeToSLAssetType(response.ContentType), creatorID);
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// UUID assetID;
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// if (UUID.TryParse(id, out assetID))
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// asset.FullID = assetID;
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// // Grab the asset data from the response stream
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// using (MemoryStream stream = new MemoryStream())
|
|
// {
|
|
// responseStream.CopyStream(stream, Int32.MaxValue);
|
|
// asset.Data = stream.ToArray();
|
|
// }
|
|
// }
|
|
// }
|
|
|
|
// // Cache store
|
|
// if (m_cache != null && asset != null)
|
|
// m_cache.Cache(asset);
|
|
|
|
// return asset;
|
|
// }
|
|
// catch (Exception ex)
|
|
// {
|
|
// m_log.Warn("[SIMIAN ASSET CONNECTOR]: Asset GET from " + url + " failed: " + ex.Message);
|
|
// return null;
|
|
// }
|
|
// }
|
|
|
|
// private string StoreRemote(AssetBase asset)
|
|
// {
|
|
// // Distinguish public and private assets
|
|
// bool isPublic = true;
|
|
// switch ((AssetType)asset.Type)
|
|
// {
|
|
// case AssetType.CallingCard:
|
|
// case AssetType.Gesture:
|
|
// case AssetType.LSLBytecode:
|
|
// case AssetType.LSLText:
|
|
// isPublic = false;
|
|
// break;
|
|
// }
|
|
|
|
// string errorMessage = null;
|
|
|
|
// // Build the remote storage request
|
|
// List<MultipartForm.Element> postParameters = new List<MultipartForm.Element>()
|
|
// {
|
|
// new MultipartForm.Parameter("AssetID", asset.FullID.ToString()),
|
|
// new MultipartForm.Parameter("CreatorID", asset.Metadata.CreatorID),
|
|
// new MultipartForm.Parameter("Temporary", asset.Temporary ? "1" : "0"),
|
|
// new MultipartForm.Parameter("Public", isPublic ? "1" : "0"),
|
|
// new MultipartForm.File("Asset", asset.Name, asset.Metadata.ContentType, asset.Data)
|
|
// };
|
|
|
|
// // Make the remote storage request
|
|
// try
|
|
// {
|
|
// // Simian does not require the asset ID to be in the URL because it's in the post data.
|
|
// // By appending it to the URL also, we allow caching proxies (squid) to invalidate asset URLs
|
|
// HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(m_serverUrl + asset.FullID.ToString());
|
|
|
|
// using (HttpWebResponse response = MultipartForm.Post(request, postParameters))
|
|
// {
|
|
// using (Stream responseStream = response.GetResponseStream())
|
|
// {
|
|
// string responseStr = null;
|
|
|
|
// try
|
|
// {
|
|
// responseStr = responseStream.GetStreamString();
|
|
// OSD responseOSD = OSDParser.Deserialize(responseStr);
|
|
// if (responseOSD.Type == OSDType.Map)
|
|
// {
|
|
// OSDMap responseMap = (OSDMap)responseOSD;
|
|
// if (responseMap["Success"].AsBoolean())
|
|
// return asset.ID;
|
|
// else
|
|
// errorMessage = "Upload failed: " + responseMap["Message"].AsString();
|
|
// }
|
|
// else
|
|
// {
|
|
// errorMessage = "Response format was invalid:\n" + responseStr;
|
|
// }
|
|
// }
|
|
// catch (Exception ex)
|
|
// {
|
|
// if (!String.IsNullOrEmpty(responseStr))
|
|
// errorMessage = "Failed to parse the response:\n" + responseStr;
|
|
// else
|
|
// errorMessage = "Failed to retrieve the response: " + ex.Message;
|
|
// }
|
|
// }
|
|
// }
|
|
// }
|
|
// catch (WebException ex)
|
|
// {
|
|
// errorMessage = ex.Message;
|
|
// }
|
|
|
|
// m_log.WarnFormat("[SIMIAN ASSET CONNECTOR]: Failed to store asset \"{0}\" ({1}, {2}): {3}",
|
|
// asset.Name, asset.ID, asset.Metadata.ContentType, errorMessage);
|
|
|
|
// return null;
|
|
// }
|
|
}
|
|
}
|