opensim-development – Rev 1
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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 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);
List<RegionData> ret = new List<RegionData>();
lock (m_regionData)
{
foreach (RegionData r in m_regionData.Values)
{
if (r.posX == posX && r.posY == posY)
ret.Add(r);
}
}
if (ret.Count > 0)
return ret[0];
return null;
}
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 >= startX && r.posX <= endX && r.posY >= 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;
}
}
}