[tracker/miner-web] Facebook miner : avoid repeated calls to SparqlUpdate

[Adrien Bustany <abustany src gnome org>]

commit 0160d57665392cae504c408da574e4d5eb38a85c
Author: Adrien Bustany <madcat mymadcat com>
Date:   Thu Nov 5 11:14:48 2009 -0300

    Facebook miner : avoid repeated calls to SparqlUpdate

 src/tracker-miner-facebook/facebook.vala |   52 +++++++++++++++++------------
 1 files changed, 30 insertions(+), 22 deletions(-)
---
diff --git a/src/tracker-miner-facebook/facebook.vala b/src/tracker-miner-facebook/facebook.vala
index 549bf41..ea138fb 100644
--- a/src/tracker-miner-facebook/facebook.vala
+++ b/src/tracker-miner-facebook/facebook.vala
@@ -339,17 +339,19 @@ public class FacebookMiner : Tracker.Miner, Tracker.MinerWeb {
 					string name = current_album.find ("name").content;
 					if (name != null) {
 						message ("Will index album %s", name);
-						tracker.SparqlUpdate ("insert {<%s> rdfs:label \"%s\"}".printf (urn, escape_string (name)));
+						tracker.BatchSparqlUpdate ("insert {<%s> rdfs:label \"%s\"}".printf (urn, escape_string (name)));
 					}
 
 					string comment = current_album.find ("description").content;
 					if (comment != null) {
-						tracker.SparqlUpdate ("insert {<%s> rdfs:comment \"%s\"}".printf (urn, escape_string (comment)));
+						tracker.BatchSparqlUpdate ("insert {<%s> rdfs:comment \"%s\"}".printf (urn, escape_string (comment)));
 					}
 
-					tracker.SparqlUpdate ("insert {<%s> nie:contentLastModified '%s'}".printf (urn, timestamp_to_iso8601 (current_album.find ("modified").content)));
-
-					tracker.SparqlUpdate ("insert {<%s> nco:creator <%s>}".printf (urn, friend_urn.lookup (current_album.find ("owner").content)));
+					tracker.BatchSparqlUpdate ("insert {<%s> nie:contentLastModified '%s' ; nco:creator <%s>"
+					                           .printf(urn,
+					                                   timestamp_to_iso8601 (current_album.find ("modified").content),
+					                                   friend_urn.lookup    (current_album.find ("owner").content)));
+					tracker.BatchCommit ();
 				} catch (Error e) {
 					critical ("Error while contacting Trakcer : %s", e.message);
 					//error (new MinerWebError.TRACKER (e.message));
@@ -380,20 +382,22 @@ public class FacebookMiner : Tracker.Miner, Tracker.MinerWeb {
 				try {
 					string caption = current_photo.find ("caption").content;
 					if (caption != null) {
-						tracker.SparqlUpdate ("insert {<%s> rdfs:label \"%s\"}".printf (urn, escape_string (caption)));
+						tracker.BatchSparqlUpdate ("insert {<%s> rdfs:label \"%s\"}".printf (urn, escape_string (caption)));
 					}
 
 					string date = timestamp_to_iso8601 (current_photo.find ("created").content);
-					tracker.SparqlUpdate ("insert {<%s> nie:contentCreated '%s'}".printf (urn, date));
+					tracker.BatchSparqlUpdate ("insert {<%s> nie:contentCreated '%s'}".printf (urn, date));
 
 					if (album_urn.lookup (current_photo.find ("aid").content) != null) {
-						tracker.SparqlUpdate ("insert {<%s> a nfo:MediaFileListEntry}".printf (urn));
-						tracker.SparqlUpdate ("insert {<%s> nfo:mediaListEntry <%s>}".printf (album_urn.lookup (current_photo.find ("aid").content), urn));
+						tracker.BatchSparqlUpdate ("insert {<%s> a nfo:MediaFileListEntry . <%s> nfo:mediaListEntry <%1$s>}"
+						                           .printf (urn,
+						                                    album_urn.lookup (current_photo.find ("aid").content)));
 					} else {
 						warning ("Unknown album for picture %s", uri);
 					}
 
-					tracker.SparqlUpdate ("insert {<%s> nco:creator <%s>}".printf (urn, friend_urn.lookup (current_photo.find ("owner").content)));
+					tracker.BatchSparqlUpdate ("insert {<%s> nco:creator <%s>}".printf (urn, friend_urn.lookup (current_photo.find ("owner").content)));
+					tracker.BatchCommit ();
 				} catch (Error e) {
 					critical ("Error while contacting Tracker : %s", e.message);
 					//error (new MinerWebError.TRACKER (e.message));
@@ -466,13 +470,14 @@ public class FacebookMiner : Tracker.Miner, Tracker.MinerWeb {
 				string uri = current.find ("permalink").content;
 				string urn = get_resource ("mfo:FeedMessage", uri);
 
-				tracker.SparqlUpdate ("insert {<%s> nmo:from <%s>}".printf (urn, authors.lookup (current.find ("actor_id").content)));
-
 				string date = timestamp_to_iso8601 (current.find ("created_time").content);
-				tracker.SparqlUpdate ("insert {<%s> nmo:receivedDate \"%s\"}".printf (urn, date));
+				tracker.BatchSparqlUpdate ("insert {<%s> nmo:from <%s> ; nmo:receivedDate \"%s\"}"
+				                      .printf (urn,
+				                               authors.lookup (current.find ("actor_id").content),
+				                               date));
 
 				if (current.find ("message").content != null) {
-					tracker.SparqlUpdate ("insert {<%s> nmo:plainTextMessageContent \"%s\"}".printf (urn, escape_string (current.find ("message").content)));
+					tracker.BatchSparqlUpdate ("insert {<%s> nmo:plainTextMessageContent \"%s\"}".printf (urn, escape_string (current.find ("message").content)));
 				}
 
 				// Deal with any attachment we might have
@@ -520,9 +525,10 @@ public class FacebookMiner : Tracker.Miner, Tracker.MinerWeb {
 							var picture_uri = current_photo.find ("src_big").content;
 							var enclosure_urn = get_resource ("nmm:Photo", picture_uri);
 
-							tracker.SparqlUpdate ("insert {<%s> a mfo:Enclosure}".printf (enclosure_urn));
-							tracker.SparqlUpdate ("insert {<%s> mfo:remoteLink <%s>}".printf (enclosure_urn, picture_uri));
-							tracker.SparqlUpdate ("insert {<%s> mfo:enclosureList <%s>}".printf (urn, enclosure_urn));
+							tracker.BatchSparqlUpdate ("insert {<%s> a mfo:Enclosure ; mfo:remoteLink <%s> . <%s> mfo:enclosureList <%1$s>}"
+							                      .printf (enclosure_urn,
+							                               picture_uri,
+							                               urn));
 
 							// The rest of the photo indexing will be done by pull_photos_cb
 
@@ -530,6 +536,8 @@ public class FacebookMiner : Tracker.Miner, Tracker.MinerWeb {
 						}
 					}
 				}
+
+				tracker.BatchCommit ();
 			} catch (Error e) {
 				critical ("Error while inserting data into Tracker : %s", e.message);
 				//error (new MinerWebError.TRACKER (e.message));
@@ -615,9 +623,10 @@ public class FacebookMiner : Tracker.Miner, Tracker.MinerWeb {
 		switch (results.length) {
 			case 0:
 				string urn = "urn:uuid:%s".printf (uuid_generate_string ());
-				tracker.SparqlUpdate ("insert {<%s> a %s}".printf (urn, klass));
-				tracker.SparqlUpdate ("insert {<%s> a nfo:RemoteDataObject}".printf (stored_as));
-				tracker.SparqlUpdate ("insert {<%s> nie:isStoredAs <%s>}".printf (urn, stored_as));
+				tracker.SparqlUpdate ("insert {<%s> a nfo:RemoteDataObject . <%s> a %s ; nie:isStoredAs <%1$s>}"
+				                      .printf (stored_as,
+				                               urn,
+				                               klass));
 				return urn;
 			case 1:
 				return results[0][0];
@@ -643,8 +652,7 @@ public class FacebookMiner : Tracker.Miner, Tracker.MinerWeb {
 		switch (results.length) {
 			case 0:
 				string urn = "urn:uuid:%s".printf (uuid_generate_string ());
-				tracker.SparqlUpdate ("insert {<%s> a nco:Contact}".printf (urn));
-				tracker.SparqlUpdate ("insert {<%s> nco:fullname \"%s\"}".printf (urn, escaped_fullname));
+				tracker.SparqlUpdate ("insert {<%s> a nco:Contact ; nco:fullname \"%s\"}".printf (urn, escaped_fullname));
 				return urn;
 			case 1:
 				return results[0][0];