From d8a78374aa11c5460d6e58a6f4110fca61dfded4 Mon Sep 17 00:00:00 2001 From: Justin Clark-Casey (justincc) Date: Wed, 9 May 2012 23:25:01 +0100 Subject: Where necessary, rename OpenSim/Services/Connectors/*.cs files to reflect the actual class names. This is usually because the file name was singular (*Service*) but the class name was plural (*Services*). This is to make configuration easier rather than having to look in the c# code itself to find the slightly different name of the connector. This does not affect existing configuration since the files are being renamed rather than the classes. --- .../Connectors/Asset/AssetServicesConnector.cs | 329 +++++++++++++++++++++ 1 file changed, 329 insertions(+) create mode 100644 OpenSim/Services/Connectors/Asset/AssetServicesConnector.cs (limited to 'OpenSim/Services/Connectors/Asset/AssetServicesConnector.cs') diff --git a/OpenSim/Services/Connectors/Asset/AssetServicesConnector.cs b/OpenSim/Services/Connectors/Asset/AssetServicesConnector.cs new file mode 100644 index 0000000..e4c3eaf --- /dev/null +++ b/OpenSim/Services/Connectors/Asset/AssetServicesConnector.cs @@ -0,0 +1,329 @@ +/* + * 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 System; +using System.Collections.Generic; +using System.IO; +using System.Reflection; +using Nini.Config; +using OpenSim.Framework; +using OpenSim.Framework.Console; +using OpenSim.Framework.Communications; +using OpenSim.Services.Interfaces; +using OpenMetaverse; + +namespace OpenSim.Services.Connectors +{ + public class AssetServicesConnector : IAssetService + { + private static readonly ILog m_log = + LogManager.GetLogger( + MethodBase.GetCurrentMethod().DeclaringType); + + private string m_ServerURI = String.Empty; + private IImprovedAssetCache m_Cache = null; + + private delegate void AssetRetrievedEx(AssetBase asset); + + // Keeps track of concurrent requests for the same asset, so that it's only loaded once. + // Maps: Asset ID -> Handlers which will be called when the asset has been loaded + private Dictionary m_AssetHandlers = new Dictionary(); + + + public AssetServicesConnector() + { + } + + public AssetServicesConnector(string serverURI) + { + m_ServerURI = serverURI.TrimEnd('/'); + } + + public AssetServicesConnector(IConfigSource source) + { + Initialise(source); + } + + public virtual void Initialise(IConfigSource source) + { + IConfig assetConfig = source.Configs["AssetService"]; + if (assetConfig == null) + { + m_log.Error("[ASSET CONNECTOR]: AssetService missing from OpenSim.ini"); + throw new Exception("Asset connector init error"); + } + + string serviceURI = assetConfig.GetString("AssetServerURI", + String.Empty); + + if (serviceURI == String.Empty) + { + m_log.Error("[ASSET CONNECTOR]: No Server URI named in section AssetService"); + throw new Exception("Asset connector init error"); + } + + m_ServerURI = serviceURI; + } + + protected void SetCache(IImprovedAssetCache cache) + { + m_Cache = cache; + } + + public AssetBase Get(string id) + { +// m_log.DebugFormat("[ASSET SERVICE CONNECTOR]: Synchronous get request for {0}", id); + + string uri = m_ServerURI + "/assets/" + id; + + AssetBase asset = null; + if (m_Cache != null) + asset = m_Cache.Get(id); + + if (asset == null) + { + asset = SynchronousRestObjectRequester. + MakeRequest("GET", uri, 0); + + if (m_Cache != null) + m_Cache.Cache(asset); + } + return asset; + } + + public AssetBase GetCached(string id) + { +// m_log.DebugFormat("[ASSET SERVICE CONNECTOR]: Cache request for {0}", id); + + if (m_Cache != null) + return m_Cache.Get(id); + + return null; + } + + public AssetMetadata GetMetadata(string id) + { + if (m_Cache != null) + { + AssetBase fullAsset = m_Cache.Get(id); + + if (fullAsset != null) + return fullAsset.Metadata; + } + + string uri = m_ServerURI + "/assets/" + id + "/metadata"; + + AssetMetadata asset = SynchronousRestObjectRequester. + MakeRequest("GET", uri, 0); + return asset; + } + + public byte[] GetData(string id) + { + if (m_Cache != null) + { + AssetBase fullAsset = m_Cache.Get(id); + + if (fullAsset != null) + return fullAsset.Data; + } + + RestClient rc = new RestClient(m_ServerURI); + rc.AddResourcePath("assets"); + rc.AddResourcePath(id); + rc.AddResourcePath("data"); + + rc.RequestMethod = "GET"; + + Stream s = rc.Request(); + + if (s == null) + return null; + + if (s.Length > 0) + { + byte[] ret = new byte[s.Length]; + s.Read(ret, 0, (int)s.Length); + + return ret; + } + + return null; + } + + public bool Get(string id, Object sender, AssetRetrieved handler) + { +// m_log.DebugFormat("[ASSET SERVICE CONNECTOR]: Potentially asynchronous get request for {0}", id); + + string uri = m_ServerURI + "/assets/" + id; + + AssetBase asset = null; + if (m_Cache != null) + asset = m_Cache.Get(id); + + if (asset == null) + { + lock (m_AssetHandlers) + { + AssetRetrievedEx handlerEx = new AssetRetrievedEx(delegate(AssetBase _asset) { handler(id, sender, _asset); }); + + AssetRetrievedEx handlers; + if (m_AssetHandlers.TryGetValue(id, out handlers)) + { + // Someone else is already loading this asset. It will notify our handler when done. + handlers += handlerEx; + return true; + } + + // Load the asset ourselves + handlers += handlerEx; + m_AssetHandlers.Add(id, handlers); + } + + bool success = false; + try + { + AsynchronousRestObjectRequester.MakeRequest("GET", uri, 0, + delegate(AssetBase a) + { + if (m_Cache != null) + m_Cache.Cache(a); + + AssetRetrievedEx handlers; + lock (m_AssetHandlers) + { + handlers = m_AssetHandlers[id]; + m_AssetHandlers.Remove(id); + } + handlers.Invoke(a); + }); + + success = true; + } + finally + { + if (!success) + { + lock (m_AssetHandlers) + { + m_AssetHandlers.Remove(id); + } + } + } + } + else + { + handler(id, sender, asset); + } + + return true; + } + + public string Store(AssetBase asset) + { + if (asset.Temporary || asset.Local) + { + if (m_Cache != null) + m_Cache.Cache(asset); + + return asset.ID; + } + + string uri = m_ServerURI + "/assets/"; + + string newID = string.Empty; + try + { + newID = SynchronousRestObjectRequester. + MakeRequest("POST", uri, asset); + } + catch (Exception e) + { + m_log.WarnFormat("[ASSET CONNECTOR]: Unable to send asset {0} to asset server. Reason: {1}", asset.ID, e.Message); + } + + if (newID != String.Empty) + { + // Placing this here, so that this work with old asset servers that don't send any reply back + // SynchronousRestObjectRequester returns somethins that is not an empty string + if (newID != null) + asset.ID = newID; + + if (m_Cache != null) + m_Cache.Cache(asset); + } + return newID; + } + + public bool UpdateContent(string id, byte[] data) + { + AssetBase asset = null; + + if (m_Cache != null) + asset = m_Cache.Get(id); + + if (asset == null) + { + AssetMetadata metadata = GetMetadata(id); + if (metadata == null) + return false; + + asset = new AssetBase(metadata.FullID, metadata.Name, metadata.Type, UUID.Zero.ToString()); + asset.Metadata = metadata; + } + asset.Data = data; + + string uri = m_ServerURI + "/assets/" + id; + + if (SynchronousRestObjectRequester. + MakeRequest("POST", uri, asset)) + { + if (m_Cache != null) + m_Cache.Cache(asset); + + return true; + } + return false; + } + + public bool Delete(string id) + { + string uri = m_ServerURI + "/assets/" + id; + + if (SynchronousRestObjectRequester. + MakeRequest("DELETE", uri, 0)) + { + if (m_Cache != null) + m_Cache.Expire(id); + + return true; + } + return false; + } + } +} \ No newline at end of file -- cgit v1.1