ogb912/opensim
1
0
Fork 0
mirror of https://github.com/opensim/opensim.git synced 2026-05-14 10:45:40 +08:00
Code Issues Packages Projects Releases Wiki Activity

Added assets service method AssetsExist(), which returns whether the given list of assets exist.

Browse Source 
This method is used to optimize sending assets with embedded assets: e.g., when a Hypergrid visitor takes an item into the inventory.
This commit is contained in:
Oren Hurvitz
2014-03-31 11:53:12 +03:00
parent ac16a667e1
commit d1c3f8eef5
25 changed files with 579 additions and 179 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
OpenSim/Data/MySQL/MySQLXAssetData.cs
View File

@@ -397,45 +397,43 @@ namespace OpenSim.Data.MySQL
}
/// <summary>
/// Check if the asset exists in the database
/// Check if the assets exist in the database.
/// </summary>
/// <param name="uuid">The asset UUID</param>
/// <returns>true if it exists, false otherwise.</returns>
public bool ExistsAsset(UUID uuid)
/// <param name="uuids">The asset UUID's</param>
/// <returns>For each asset: true if it exists, false otherwise</returns>
public bool[] AssetsExist(UUID[] uuids)
{
// m_log.DebugFormat("[ASSETS DB]: Checking for asset {0}", uuid);
if (uuids.Length == 0)
return new bool[0];
bool assetExists = false;
HashSet<UUID> exists = new HashSet<UUID>();
string ids = "'" + string.Join("','", uuids) + "'";
string sql = string.Format("SELECT ID FROM assets WHERE ID IN ({0})", ids);
lock (m_dbLock)
{
using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
{
dbcon.Open();
using (MySqlCommand cmd = new MySqlCommand("SELECT ID FROM XAssetsMeta WHERE ID=?ID", dbcon))
using (MySqlCommand cmd = new MySqlCommand(sql, dbcon))
{
cmd.Parameters.AddWithValue("?ID", uuid.ToString());
try
using (MySqlDataReader dbReader = cmd.ExecuteReader())
{
using (MySqlDataReader dbReader = cmd.ExecuteReader(CommandBehavior.SingleRow))
while (dbReader.Read())
{
if (dbReader.Read())
{
// m_log.DebugFormat("[ASSETS DB]: Found asset {0}", uuid);
assetExists = true;
}
UUID id = DBGuid.FromDB(dbReader["ID"]);
exists.Add(id);
}
}
catch (Exception e)
{
m_log.Error(string.Format("[XASSETS DB]: MySql failure fetching asset {0}", uuid), e);
}
}
}
}
return assetExists;
bool[] results = new bool[uuids.Length];
for (int i = 0; i < uuids.Length; i++)
results[i] = exists.Contains(uuids[i]);
return results;
}