NullXGroupData.cs

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using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Threading;
using log4net;
using OpenMetaverse;
using OpenSim.Framework;
using OpenSim.Data;

namespace OpenSim.Data.Null
{
    public class NullXGroupData : IXGroupData
    {
//        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);

        private Dictionary<UUID, XGroup> m_groups = new Dictionary<UUID, XGroup>();

        public NullXGroupData(string connectionString, string realm) {}

        public bool StoreGroup(XGroup group)
        {
            lock (m_groups)
            {
                m_groups[group.groupID] = group.Clone();
            }

            return true;
        }

        public XGroup GetGroup(UUID groupID)
        {
            XGroup group = null;

            lock (m_groups)
                m_groups.TryGetValue(groupID, out group);

            return group;
        }

        public Dictionary<UUID, XGroup> GetGroups()
        {
            Dictionary<UUID, XGroup> groupsClone = new Dictionary<UUID, XGroup>();

            lock (m_groups)
                foreach (XGroup group in m_groups.Values)
                    groupsClone[group.groupID] = group.Clone();

            return groupsClone;
        }

        public bool DeleteGroup(UUID groupID)
        {
            lock (m_groups)
                return m_groups.Remove(groupID);
        }
    }
}