123 lines
4.3 KiB
C#
123 lines
4.3 KiB
C#
/*
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* Copyright (c) OpenSim project, http://sim.opensecondlife.org/
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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 <organization> 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 <copyright holder> ``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 <copyright holder> 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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*/
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using System;
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using libsecondlife;
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using BerkeleyDb;
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using Kds.Serialization;
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using Kds.Serialization.Buffer;
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namespace OpenSim
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{
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/// <summary>
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/// Handles connection to Asset Server.
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/// </summary>
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public class AssetServer : IAssetServer
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{
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private IAssetReceived _receiver;
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public AssetServer()
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{
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}
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private void Initialise()
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{
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if(Globals.Instance.LocalRunning)
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{
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//we are running not connected to a grid, so use local database
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}
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}
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public void SetReceiver(IAssetReceived receiver)
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{
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this._receiver = receiver;
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}
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public void RequestAsset(LLUUID assetID)
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{
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AssetBase asset = null;
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byte[] dataBuffer = new byte[4096];
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byte[] keyBuffer = new byte[256];
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int index;
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DbEntry keyEntry;
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DbEntry dataEntry;
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dataEntry = DbEntry.InOut(dataBuffer, 0, 4096);
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index = 0;
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BerkeleyDatabases.Instance.dbs.Formatter.Serialize<string>(assetID.ToStringHyphenated(), keyBuffer, ref index);
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byte[] co= new byte[44];
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Array.Copy(keyBuffer,co,44);
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keyEntry = DbEntry.InOut(co, 0, 44);
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ReadStatus status = BerkeleyDatabases.Instance.dbs.AssetDb.Get(null, ref keyEntry, ref dataEntry, DbFile.ReadFlags.None);
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if (status != ReadStatus.Success)
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{
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throw new ApplicationException("Read failed");
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}
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index = 0;
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BerkeleyDatabases.Instance.dbs.Formatter.Deserialize<AssetBase>(ref asset, dataEntry.Buffer, ref index);
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this._receiver.AssetReceived( asset);
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}
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public void UpdateAsset(AssetBase asset)
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{
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//can we use UploadNewAsset to update as well?
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this.UploadNewAsset(asset);
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}
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public void UploadNewAsset(AssetBase asset)
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{
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byte[] dataBuffer = new byte[4096];
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byte[] keyBuffer = new byte[256];
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int index;
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DbEntry keyEntry;
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DbEntry dataEntry;
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index = 0;
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BerkeleyDatabases.Instance.dbs.Formatter.Serialize<string>(asset.FullID.ToStringHyphenated(), keyBuffer, ref index);
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byte[] co= new byte[44];
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Array.Copy(keyBuffer,co,44);
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keyEntry = DbEntry.InOut(co, 0, 44);
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index = 0;
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BerkeleyDatabases.Instance.dbs.Formatter.Serialize<AssetBase>(asset, dataBuffer, ref index);
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dataEntry = DbEntry.InOut(dataBuffer, 0, index);
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WriteStatus status = BerkeleyDatabases.Instance.dbs.AssetDb.Put(null, ref keyEntry, ref dataEntry, DbFile.WriteFlags.None);
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if (status != WriteStatus.Success)
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throw new ApplicationException("Put failed");
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}
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}
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public interface IAssetServer
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{
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void SetReceiver(IAssetReceived receiver);
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void RequestAsset(LLUUID assetID);
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void UpdateAsset(AssetBase asset);
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void UploadNewAsset(AssetBase asset);
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}
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// could change to delegate
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public interface IAssetReceived
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{
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void AssetReceived(AssetBase asset);
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}
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}
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