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

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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
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42
OpenSim/Data/MySQL/MySQLAssetData.cs
View File

@@ -257,46 +257,44 @@ 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>
override public bool ExistsAsset(UUID uuid)
/// <param name="uuidss">The assets' IDs</param>
/// <returns>For each asset: true if it exists, false otherwise</returns>
public override 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> exist = 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 assets 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"]);
exist.Add(id);
}
}
catch (Exception e)
{
m_log.Error(
string.Format("[ASSETS DB]: MySql failure fetching asset {0}. Exception ", uuid), e);
}
}
}
}
return assetExists;
bool[] results = new bool[uuids.Length];
for (int i = 0; i < uuids.Length; i++)
results[i] = exist.Contains(uuids[i]);
return results;
}
/// <summary>

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;
}