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

This method is used to optimize sending assets with embedded assets: e.g., when a Hypergrid visitor takes an item into the inventory.

2 files changed, 26 insertions, 4 deletions

diff --git a/OpenSim/Services/AssetService/AssetService.cs b/OpenSim/Services/AssetService/AssetService.cs
index 08fd3f8..0aefa16 100644
--- a/OpenSim/Services/AssetService/AssetService.cs
+++ b/OpenSim/Services/AssetService/AssetService.cs
@@ -153,9 +153,24 @@ namespace OpenSim.Services.AssetService
             return true;
         }
 
+        public virtual bool[] AssetsExist(string[] ids)
+        {
+            try
+            {
+                UUID[] uuid = Array.ConvertAll(ids, id => UUID.Parse(id));
+                return m_Database.AssetsExist(uuid);
+            }
+            catch (Exception e)
+            {
+                m_log.Error("[ASSET SERVICE]: Exception getting assets ", e);
+                return new bool[ids.Length];
+            }
+        }
+        
         public virtual string Store(AssetBase asset)
         {
-            if (!m_Database.ExistsAsset(asset.FullID))
+            bool exists = m_Database.AssetsExist(new[] { asset.FullID })[0];
+            if (!exists)
             {
 //                m_log.DebugFormat(
 //                    "[ASSET SERVICE]: Storing asset {0} {1}, bytes {2}", asset.Name, asset.FullID, asset.Data.Length);
@@ -186,4 +201,4 @@ namespace OpenSim.Services.AssetService
             return m_Database.Delete(id);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/OpenSim/Services/AssetService/XAssetService.cs b/OpenSim/Services/AssetService/XAssetService.cs
index 6047616..f58b769 100644
--- a/OpenSim/Services/AssetService/XAssetService.cs
+++ b/OpenSim/Services/AssetService/XAssetService.cs
@@ -175,9 +175,16 @@ namespace OpenSim.Services.AssetService
             return true;
         }
 
+        public virtual bool[] AssetsExist(string[] ids)
+        {
+            UUID[] uuid = Array.ConvertAll(ids, id => UUID.Parse(id));
+            return m_Database.AssetsExist(uuid);
+        }
+        
         public virtual string Store(AssetBase asset)
         {
-            if (!m_Database.ExistsAsset(asset.FullID))
+            bool exists = m_Database.AssetsExist(new[] { asset.FullID })[0];
+            if (!exists)
             {
 //                m_log.DebugFormat(
 //                    "[XASSET SERVICE]: Storing asset {0} {1}, bytes {2}", asset.Name, asset.FullID, asset.Data.Length);
@@ -217,4 +224,4 @@ namespace OpenSim.Services.AssetService
             m_ChainedAssetService.Delete(asset.ID);
         }
     }
-}
\ No newline at end of file
+}