OpenSimMirror/OpenSim/Region/CoreModules/World/Archiver/ArchiveWriteRequestExecution.cs

/*
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 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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using System;
using System.Collections.Generic;
using System.IO;
using System.Reflection;
using System.Xml;
using log4net;
using OpenMetaverse;
using OpenSim.Framework;
using OpenSim.Framework.Serialization;
using OpenSim.Framework.Serialization.External;
using OpenSim.Region.CoreModules.World.Terrain;
using OpenSim.Region.Framework.Interfaces;
using OpenSim.Region.Framework.Scenes;

namespace OpenSim.Region.CoreModules.World.Archiver
{
    /// <summary>
    /// Method called when all the necessary assets for an archive request have been received.
    /// </summary>
    public delegate void AssetsRequestCallback(
        ICollection<UUID> assetsFoundUuids, ICollection<UUID> assetsNotFoundUuids);

    /// <summary>
    /// Execute the write of an archive once we have received all the necessary data
    /// </summary>
    public class ArchiveWriteRequestExecution
    {
        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);

        protected ITerrainModule m_terrainModule;
        protected IRegionSerialiserModule m_serialiser;
        protected List<SceneObjectGroup> m_sceneObjects;
        protected Scene m_scene;
        protected TarArchiveWriter m_archiveWriter;
        protected Guid m_requestId;
        protected Dictionary<string, object> m_options;

        public ArchiveWriteRequestExecution(
             List<SceneObjectGroup> sceneObjects,
             ITerrainModule terrainModule,
             IRegionSerialiserModule serialiser,
             Scene scene,
             TarArchiveWriter archiveWriter,
             Guid requestId,
             Dictionary<string, object> options)
        {
            m_sceneObjects = sceneObjects;
            m_terrainModule = terrainModule;
            m_serialiser = serialiser;
            m_scene = scene;
            m_archiveWriter = archiveWriter;
            m_requestId = requestId;
            m_options = options;
        }

        protected internal void ReceivedAllAssets(
            ICollection<UUID> assetsFoundUuids, ICollection<UUID> assetsNotFoundUuids)
        {
            try
            {
                Save(assetsFoundUuids, assetsNotFoundUuids);
            }
            finally
            {
                m_archiveWriter.Close();
            }
            
            m_log.InfoFormat("[ARCHIVER]: Finished writing out OAR for {0}", m_scene.RegionInfo.RegionName);

            m_scene.EventManager.TriggerOarFileSaved(m_requestId, String.Empty);
        }

        protected internal void Save(ICollection<UUID> assetsFoundUuids, ICollection<UUID> assetsNotFoundUuids)
        {
            foreach (UUID uuid in assetsNotFoundUuids)
            {
                m_log.DebugFormat("[ARCHIVER]: Could not find asset {0}", uuid);
            }

//            m_log.InfoFormat(
//                "[ARCHIVER]: Received {0} of {1} assets requested",
//                assetsFoundUuids.Count, assetsFoundUuids.Count + assetsNotFoundUuids.Count);

            // Write out region settings
            string settingsPath
                = String.Format("{0}{1}.xml", ArchiveConstants.SETTINGS_PATH, m_scene.RegionInfo.RegionName);
            m_archiveWriter.WriteFile(settingsPath, RegionSettingsSerializer.Serialize(m_scene.RegionInfo.RegionSettings));

            m_log.InfoFormat("[ARCHIVER]: Added region settings to archive.");

            // Write out land data (aka parcel) settings
            List<ILandObject>landObjects = m_scene.LandChannel.AllParcels();
            foreach (ILandObject lo in landObjects)
            {
                LandData landData = lo.LandData;
                string landDataPath = String.Format("{0}{1}.xml", ArchiveConstants.LANDDATA_PATH, 
                                                    landData.GlobalID.ToString());
                m_archiveWriter.WriteFile(landDataPath, LandDataSerializer.Serialize(landData));
            }
            m_log.InfoFormat("[ARCHIVER]: Added parcel settings to archive.");

            // Write out terrain
            string terrainPath
                = String.Format("{0}{1}.r32", ArchiveConstants.TERRAINS_PATH, m_scene.RegionInfo.RegionName);

            MemoryStream ms = new MemoryStream();
            m_terrainModule.SaveToStream(terrainPath, ms);
            m_archiveWriter.WriteFile(terrainPath, ms.ToArray());
            ms.Close();

            m_log.InfoFormat("[ARCHIVER]: Added terrain information to archive.");
           
            // Write out scene object metadata
            foreach (SceneObjectGroup sceneObject in m_sceneObjects)
            {
                //m_log.DebugFormat("[ARCHIVER]: Saving {0} {1}, {2}", entity.Name, entity.UUID, entity.GetType());

                string serializedObject = m_serialiser.SerializeGroupToXml2(sceneObject, m_options);                
                m_archiveWriter.WriteFile(ArchiveHelpers.CreateObjectPath(sceneObject), serializedObject);
            }

            m_log.InfoFormat("[ARCHIVER]: Added scene objects to archive.");
        }


    }
}