InventoryFolderImpl.cs

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 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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using System;
using System.Collections.Generic;
using System.Reflection;
using log4net;
using OpenMetaverse;

namespace OpenSim.Framework
{
    public class InventoryFolderImpl : InventoryFolderBase
    {
//        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);

        public static readonly string PATH_DELIMITER = "/";

        public Dictionary<UUID, InventoryItemBase> Items = new Dictionary<UUID, InventoryItemBase>();

        protected Dictionary<UUID, InventoryFolderImpl> m_childFolders = new Dictionary<UUID, InventoryFolderImpl>();

        // Constructors
        public InventoryFolderImpl(InventoryFolderBase folderbase)
        {
            Owner = folderbase.Owner;
            ID = folderbase.ID;
            Name = folderbase.Name;
            ParentID = folderbase.ParentID;
            Type = folderbase.Type;
            Version = folderbase.Version;
        }

        public InventoryFolderImpl()
        {
        }

        public InventoryFolderImpl CreateChildFolder(UUID folderID, string folderName, ushort type)
        {
            lock (m_childFolders)
            {
                if (!m_childFolders.ContainsKey(folderID))
                {
                    InventoryFolderImpl subFold = new InventoryFolderImpl();
                    subFold.Name = folderName;
                    subFold.ID = folderID;
                    subFold.Type = (short)type;
                    subFold.ParentID = this.ID;
                    subFold.Owner = Owner;
                    m_childFolders.Add(subFold.ID, subFold);

                    return subFold;
                }
            }

            return null;
        }

        public void AddChildFolder(InventoryFolderImpl folder)
        {
            lock (m_childFolders)
            {
                folder.ParentID = ID;
                m_childFolders[folder.ID] = folder;
            }
        }

        public bool ContainsChildFolder(UUID folderID)
        {
            return m_childFolders.ContainsKey(folderID);
        }

        public InventoryFolderImpl GetChildFolder(UUID folderID)
        {
            InventoryFolderImpl folder = null;

            lock (m_childFolders)
            {
                m_childFolders.TryGetValue(folderID, out folder);
            }

            return folder;
        }

        public InventoryFolderImpl RemoveChildFolder(UUID folderID)
        {
            InventoryFolderImpl removedFolder = null;

            lock (m_childFolders)
            {
                if (m_childFolders.ContainsKey(folderID))
                {
                    removedFolder = m_childFolders[folderID];
                    m_childFolders.Remove(folderID);
                }
            }

            return removedFolder;
        }

        public void Purge()
        {
            foreach (InventoryFolderImpl folder in m_childFolders.Values)
            {
                folder.Purge();
            }

            m_childFolders.Clear();
            Items.Clear();
        }

        public InventoryItemBase FindItem(UUID itemID)
        {
            lock (Items)
            {
                if (Items.ContainsKey(itemID))
                {
                    return Items[itemID];
                }
            }

            lock (m_childFolders)
            {
                foreach (InventoryFolderImpl folder in m_childFolders.Values)
                {
                    InventoryItemBase item = folder.FindItem(itemID);

                    if (item != null)
                    {
                        return item;
                    }
                }
            }

            return null;
        }

        public InventoryItemBase FindAsset(UUID assetID)
        {
            lock (Items)
            {
                foreach (InventoryItemBase item in Items.Values)
                {
                    if (item.AssetID == assetID)
                        return item;
                }
            }

            lock (m_childFolders)
            {
                foreach (InventoryFolderImpl folder in m_childFolders.Values)
                {
                    InventoryItemBase item = folder.FindAsset(assetID);

                    if (item != null)
                    {
                        return item;
                    }
                }
            }

            return null;
        }

        public bool DeleteItem(UUID itemID)
        {
            bool found = false;

            lock (Items)
            {
                if (Items.ContainsKey(itemID))
                {
                    Items.Remove(itemID);
                    return true;
                }
            }

            lock (m_childFolders)
            {
                foreach (InventoryFolderImpl folder in m_childFolders.Values)
                {
                    found = folder.DeleteItem(itemID);

                    if (found == true)
                    {
                        break;
                    }
                }
            }

            return found;
        }

        public InventoryFolderImpl FindFolder(UUID folderID)
        {
            if (folderID == ID)
                return this;

            lock (m_childFolders)
            {
                foreach (InventoryFolderImpl folder in m_childFolders.Values)
                {
                    InventoryFolderImpl returnFolder = folder.FindFolder(folderID);

                    if (returnFolder != null)
                        return returnFolder;
                }
            }

            return null;
        }

        public InventoryFolderImpl FindFolderForType(int type)
        {
            lock (m_childFolders)
            {
                foreach (InventoryFolderImpl f in m_childFolders.Values)
                {
                    if (f.Type == type)
                        return f;
                }
            }

            return null;
        }

        public InventoryFolderImpl FindFolderByPath(string path)
        {
            if (path == string.Empty)
                return this;

            path = path.Trim();

            if (path == PATH_DELIMITER)
                return this;

            string[] components = path.Split(new string[] { PATH_DELIMITER }, 2, StringSplitOptions.None);

            lock (m_childFolders)
            {
                foreach (InventoryFolderImpl folder in m_childFolders.Values)
                {
                    if (folder.Name == components[0])
                        if (components.Length > 1)
                            return folder.FindFolderByPath(components[1]);
                        else
                            return folder;
                }
            }

            // We didn't find a folder with the given name
            return null;
        }

        public InventoryItemBase FindItemByPath(string path)
        {
            string[] components = path.Split(new string[] { PATH_DELIMITER }, 2, StringSplitOptions.None);

            if (components.Length == 1)
            {
                lock (Items)
                {
                    foreach (InventoryItemBase item in Items.Values)
                    {
                        if (item.Name == components[0])
                            return item;
                    }
                }
            }
            else
            {
                lock (m_childFolders)
                {
                    foreach (InventoryFolderImpl folder in m_childFolders.Values)
                    {
                        if (folder.Name == components[0])
                            return folder.FindItemByPath(components[1]);
                    }
                }
            }

            // We didn't find an item or intermediate folder with the given name
            return null;
        }

        public List<InventoryItemBase> RequestListOfItems()
        {
            List<InventoryItemBase> itemList = new List<InventoryItemBase>();

            lock (Items)
            {
                foreach (InventoryItemBase item in Items.Values)
                {
//                    m_log.DebugFormat(
//                        "[INVENTORY FOLDER IMPL]: Returning item {0} {1}, OwnerPermissions {2:X}",
//                        item.Name, item.ID, item.CurrentPermissions);

                    itemList.Add(item);
                }
            }

            //m_log.DebugFormat("[INVENTORY FOLDER IMPL]: Found {0} items", itemList.Count);

            return itemList;
        }

        public List<InventoryFolderBase> RequestListOfFolders()
        {
            List<InventoryFolderBase> folderList = new List<InventoryFolderBase>();

            lock (m_childFolders)
            {
                foreach (InventoryFolderBase folder in m_childFolders.Values)
                {
                    folderList.Add(folder);
                }
            }

            return folderList;
        }

        public List<InventoryFolderImpl> RequestListOfFolderImpls()
        {
            List<InventoryFolderImpl> folderList = new List<InventoryFolderImpl>();

            lock (m_childFolders)
            {
                foreach (InventoryFolderImpl folder in m_childFolders.Values)
                {
                    folderList.Add(folder);
                }
            }

            return folderList;
        }

        public int TotalCount
        {
            get
            {
                int total = Items.Count;

                foreach (InventoryFolderImpl folder in m_childFolders.Values)
                {
                    total = total + folder.TotalCount;
                }

                return total;
            }
        }
    }
}