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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 OpenSim 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 System.Collections.Generic;
using System.IO;
using System.Reflection;
using System.Xml;
using libsecondlife;
using log4net;
using OpenSim.Framework;
namespace OpenSim.Region.Environment.Modules.World.Archiver
{
/// <summary>
/// Archives assets
/// </summary>
public class AssetsArchiver
{
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
/// <summary>
/// Archive assets
/// </summary>
protected IDictionary<LLUUID, AssetBase> m_assets;
public AssetsArchiver(IDictionary<LLUUID, AssetBase> assets)
{
m_assets = assets;
}
/// <summary>
/// Archive the assets given to this archiver to the given archive.
/// </summary>
/// <param name="archive"></param>
public void Archive(TarArchiveWriter archive)
{
WriteMetadata(archive);
WriteData(archive);
}
/// <summary>
/// Write an assets metadata file to the given archive
/// </summary>
/// <param name="archive"></param>
protected void WriteMetadata(TarArchiveWriter archive)
{
StringWriter sw = new StringWriter();
XmlTextWriter xtw = new XmlTextWriter(sw);
xtw.Formatting = Formatting.Indented;
xtw.WriteStartDocument();
xtw.WriteStartElement("assets");
foreach (LLUUID uuid in m_assets.Keys)
{
AssetBase asset = m_assets[uuid];
if (asset != null)
{
xtw.WriteStartElement("asset");
string extension = string.Empty;
if ((sbyte)AssetType.Texture == asset.Type)
{
extension = ArchiveConstants.TEXTURE_EXTENSION;
}
xtw.WriteElementString("filename", uuid.ToString() + extension);
xtw.WriteElementString("name", asset.Name);
xtw.WriteElementString("description", asset.Description);
xtw.WriteElementString("asset-type", asset.Type.ToString());
xtw.WriteElementString("inventory-type", asset.InvType.ToString());
xtw.WriteEndElement();
}
}
xtw.WriteEndElement();
xtw.WriteEndDocument();
archive.AddFile("assets.xml", sw.ToString());
}
/// <summary>
/// Write asset data files to the given archive
/// </summary>
/// <param name="archive"></param>
protected void WriteData(TarArchiveWriter archive)
{
// It appears that gtar, at least, doesn't need the intermediate directory entries in the tar
//archive.AddDir("assets");
foreach (LLUUID uuid in m_assets.Keys)
{
AssetBase asset = m_assets[uuid];
if (asset != null)
{
string extension = string.Empty;
if ((sbyte)AssetType.Texture == asset.Type)
{
extension = ArchiveConstants.TEXTURE_EXTENSION;
}
archive.AddFile(
ArchiveConstants.ASSETS_PATH + uuid.ToString() + extension,
asset.Data);
}
else
{
m_log.DebugFormat("[ARCHIVER]: Could not find asset {0} to archive", uuid);
}
}
}
}
}
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