1 files changed, 281 insertions, 0 deletions

diff --git a/OpenSim/Data/Null/NullRegionData.cs b/OpenSim/Data/Null/NullRegionData.cs
new file mode 100644
index 0000000..595db2f
--- /dev/null
+++ b/OpenSim/Data/Null/NullRegionData.cs
@@ -0,0 +1,281 @@
+/*
+ * 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 OpenSimulator 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;
+using System.Collections;
+using System.Collections.Generic;
+using OpenMetaverse;
+using OpenSim.Framework;
+using OpenSim.Data;
+using System.Reflection;
+using log4net;
+using RegionFlags = OpenSim.Framework.RegionFlags;
+
+namespace OpenSim.Data.Null
+{
+    public class NullRegionData : IRegionData
+    {
+        private static NullRegionData Instance = null;
+
+        /// <summary>
+        /// Should we use the static instance for all invocations?
+        /// </summary>
+        private bool m_useStaticInstance = true;
+
+//        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        Dictionary<UUID, RegionData> m_regionData = new Dictionary<UUID, RegionData>();
+
+        public NullRegionData(string connectionString, string realm)
+        {
+//            m_log.DebugFormat(
+//                "[NULL REGION DATA]: Constructor got connectionString {0}, realm {1}", connectionString, realm);
+
+            // The !static connection string is a hack so that regression tests can use this module without a high degree of fragility
+            // in having to deal with the static reference in the once-loaded NullRegionData class.
+            //
+            // In standalone operation, we have to use only one instance of this class since the login service and
+            // simulator have no other way of using a common data store.
+            if (connectionString == "!static")
+                m_useStaticInstance = false;
+            else if (Instance == null)
+                Instance = this;
+        }
+
+        private delegate bool Matcher(string value);
+
+        public List<RegionData> Get(string regionName, UUID scopeID)
+        {
+            if (m_useStaticInstance && Instance != this)
+                return Instance.Get(regionName, scopeID);
+
+//            m_log.DebugFormat("[NULL REGION DATA]: Getting region {0}, scope {1}", regionName, scopeID);
+
+            string cleanName = regionName.ToLower();
+
+            // Handle SQL wildcards
+            const string wildcard = "%";
+            bool wildcardPrefix = false;
+            bool wildcardSuffix = false;
+            if (cleanName.Equals(wildcard))
+            {
+                wildcardPrefix = wildcardSuffix = true;
+                cleanName = string.Empty;
+            }
+            else
+            {
+                if (cleanName.StartsWith(wildcard))
+                {
+                    wildcardPrefix = true;
+                    cleanName = cleanName.Substring(1);
+                }
+                if (regionName.EndsWith(wildcard))
+                {
+                    wildcardSuffix = true;
+                    cleanName = cleanName.Remove(cleanName.Length - 1);
+                }
+            }
+
+            Matcher queryMatch;
+            if (wildcardPrefix && wildcardSuffix)
+                queryMatch = delegate(string s) { return s.Contains(cleanName); };
+            else if (wildcardSuffix)
+                queryMatch = delegate(string s) { return s.StartsWith(cleanName); };
+            else if (wildcardPrefix)
+                queryMatch = delegate(string s) { return s.EndsWith(cleanName); };
+            else
+                queryMatch = delegate(string s) { return s.Equals(cleanName); };
+
+            // Find region data
+            List<RegionData> ret = new List<RegionData>();
+
+            lock (m_regionData)
+            {
+                foreach (RegionData r in m_regionData.Values)
+                {
+                    // m_log.DebugFormat("[NULL REGION DATA]: comparing {0} to {1}", cleanName, r.RegionName.ToLower());
+                    if (queryMatch(r.RegionName.ToLower()))
+                        ret.Add(r);
+                }
+            }
+
+            if (ret.Count > 0)
+                return ret;
+
+            return null;
+        }
+
+        public RegionData Get(int posX, int posY, UUID scopeID)
+        {
+            if (m_useStaticInstance && Instance != this)
+                return Instance.Get(posX, posY, scopeID);
+
+            RegionData ret = null;
+
+            lock (m_regionData)
+            {
+                foreach (RegionData r in m_regionData.Values)
+                {
+                    if (posX >= r.posX && posX < r.posX + r.sizeX
+                        && posY >= r.posY && posY < r.posY + r.sizeY)
+                    {
+                        ret = r;
+                        break;
+                    }
+                }
+            }
+
+            return ret;
+        }
+
+        public RegionData Get(UUID regionID, UUID scopeID)
+        {
+            if (m_useStaticInstance && Instance != this)
+                return Instance.Get(regionID, scopeID);
+
+            lock (m_regionData)
+            {
+                if (m_regionData.ContainsKey(regionID))
+                    return m_regionData[regionID];
+            }
+
+            return null;
+        }
+
+        public List<RegionData> Get(int startX, int startY, int endX, int endY, UUID scopeID)
+        {
+            if (m_useStaticInstance && Instance != this)
+                return Instance.Get(startX, startY, endX, endY, scopeID);
+
+            List<RegionData> ret = new List<RegionData>();
+
+            lock (m_regionData)
+            {
+                foreach (RegionData r in m_regionData.Values)
+                {
+                    if (r.posX + r.sizeX > startX && r.posX <= endX
+                         && r.posY + r.sizeX > startY && r.posY <= endY)
+                         ret.Add(r);
+                }
+            }
+
+            return ret;
+        }
+
+        public bool Store(RegionData data)
+        {
+            if (m_useStaticInstance && Instance != this)
+                return Instance.Store(data);
+
+//            m_log.DebugFormat(
+//                "[NULL REGION DATA]: Storing region {0} {1}, scope {2}", data.RegionName, data.RegionID, data.ScopeID);
+
+            lock (m_regionData)
+            {
+                m_regionData[data.RegionID] = data;
+            }
+
+            return true;
+        }
+
+        public bool SetDataItem(UUID regionID, string item, string value)
+        {
+            if (m_useStaticInstance && Instance != this)
+                return Instance.SetDataItem(regionID, item, value);
+
+            lock (m_regionData)
+            {
+                if (!m_regionData.ContainsKey(regionID))
+                    return false;
+
+                m_regionData[regionID].Data[item] = value;
+            }
+
+            return true;
+        }
+
+        public bool Delete(UUID regionID)
+        {
+            if (m_useStaticInstance && Instance != this)
+                return Instance.Delete(regionID);
+
+//            m_log.DebugFormat("[NULL REGION DATA]: Deleting region {0}", regionID);
+
+            lock (m_regionData)
+            {
+                if (!m_regionData.ContainsKey(regionID))
+                    return false;
+
+                m_regionData.Remove(regionID);
+            }
+
+            return true;
+        }
+
+        public List<RegionData> GetDefaultRegions(UUID scopeID)
+        {
+            return Get((int)RegionFlags.DefaultRegion, scopeID);
+        }
+
+        public List<RegionData> GetDefaultHypergridRegions(UUID scopeID)
+        {
+            return Get((int)RegionFlags.DefaultHGRegion, scopeID);
+        }
+
+        public List<RegionData> GetFallbackRegions(UUID scopeID, int x, int y)
+        {
+            List<RegionData> regions = Get((int)RegionFlags.FallbackRegion, scopeID);
+            RegionDataDistanceCompare distanceComparer = new RegionDataDistanceCompare(x, y);
+            regions.Sort(distanceComparer);
+            return regions;
+        }
+
+        public List<RegionData> GetHyperlinks(UUID scopeID)
+        {
+            return Get((int)RegionFlags.Hyperlink, scopeID);
+        }
+
+        private List<RegionData> Get(int regionFlags, UUID scopeID)
+        {
+            if (Instance != this)
+                return Instance.Get(regionFlags, scopeID);
+
+            List<RegionData> ret = new List<RegionData>();
+
+            lock (m_regionData)
+            {
+                foreach (RegionData r in m_regionData.Values)
+                {
+                    if ((Convert.ToInt32(r.Data["flags"]) & regionFlags) != 0)
+                        ret.Add(r);
+                }
+            }
+
+            return ret;
+        }
+    }
+}