Hi,

I am currently using a reconciliation service based on a generic SPARQL endpoint.

My triplestore is on a local server. However, the duration of the reconciliation is very important. It takes about 5 hours to reconcile 90000 lines with 36000 separate entities in my triplestore.

However the triplestore seems not to be overloaded. Is there a way to optimise the reconciliation ?

[edit] I saw in the code that there is a sleep(300) called between each SPARQL request. 300ms*36000 = 3 hours of waiting. Why is there a sleep here ? It seems there is no option to disable this waiting between requests for now.

Maybe such an option would be interresting to improve performance ?

I have reconciled a very simple data sample with Freebase (linking companies to some domain of interest). For example Whirlpool is reconciled with http://www.freebase.com/view/m/04d8tw (which is not actually the actual URI of the Freebase topic, but a good proxy ...)
Can I get this URI into the RDF, and how?
Actually the only export format of Refine which seems able to capture the reconciled URIs is Excel. Shh...

Thanks for the tool anyway. Great stuff!

Bernard

Let's suppose I want to convert to RDF a CSV containing composite columns, something like:

C1,C2,C3
V1,V2,[V3,V4,V5]

V6,V7,[V8,V9]

I tried first, for such columns (in the example above C3), to specify a GREL script returning an array [1].
I expected that the RDF Mapper function would have produced a cartesian product of a triple which value
is a list ( as mocked up in [2]), but instead it returned a string containing the java signature of the array object [3].

The question is:
are you planning to add shortly a list support for literal mapping?
If not, could you mind to suggest us how to start patching the code to have this functionality?

[1]

with(
value.substring(1, length(value)-1).split(","),
e,

forEach(e, v, v.trim().substring(1, length(v) - 1)) )

[2]

http://127.0.0.1:3333/2 a http://schema.org/Restaurant ;
http://schema.org/name "Ristorante Rosa D'Oro" ;
http://schema.org/acceptsReservations "Yes" ;
http://schema.org/servesCuisine "Italiana";
http://schema.org/servesCuisine "Pizza";

http://schema.org/servesCuisine "Vegetarian".

[3]

http://127.0.0.1:3333/2 a http://schema.org/Restaurant ;
http://schema.org/name "Ristorante Rosa D'Oro" ;
http://schema.org/acceptsReservations "Yes" ;

http://schema.org/servesCuisine "[Ljava.lang.Object;@a0ccc96" .

Reported by Paul

• RDF -> Add reconciliation service with name 'A'.
• the name appears in the list of available reconciliation services.
• delete the name from the list
• RDF -> Add reconciliation service with name 'A' again --> error message 'Service with name 'A' already exist!'.

The use of foaf:member in the sample RDF data on http://lab.linkeddata.deri.ie/2010/grefine-rdf-extension/ is backwards. foaf:member points from a group to a person, but that page uses it to point from the person to the group.

(Other than that, this looks like a fantastic plugin, so thanks!)

Hi,
it will be very useful to let users upload their data to their own repository after having aligned the colums names with the RDF schema, something like one can already do with the Freebase extension where you can load your data into Freebase after having done the schema alignment. Are you thinking to add this functionality to you extension ?

Luigi

Using Refine v 2.5 and RDF Extensions 0.5.3 on Mac 10.7
Stopped refine, created extensions directory,unzipped extensions, restarted refine
When i open a project it just says "Working" and never leaves.

Any ideas?

I'm actually using Google refine 2.5, Windows 7 and Google chrome as browser.
I have the following problem when I'm trying to use the Freebase reconciliation service:

15:04:23.645 [ command] Failed to guess cell types for load
{"q0":{"query":"Afghanistan","limit":3},"q1":{"query":"Albania","limit":3},"q2":{"query":"Algeria","limit":3},"q3":{"query":"American Samoa","limit":3},"q4":{"query":"Andorra","limit":3},"q5":{"query":"Angola","limit":3},"q6":{"query":"Antigua and Barbuda","limit":3},"q7":{"query":"Arab World","limit":3},"q8":{"query":"Argentina","limit":3},"q9":{"query":"Armenia","limit":3}} (187ms)
java.net.UnknownHostException: 4.standard-reconcile.dfhuynh.user.dev.freebaseapps.com
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at sun.net.NetworkClient.doConnect(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(Unknown Source)
at com.google.refine.commands.recon.GuessTypesOfColumnCommand.guessTypes(GuessTypesOfColumnCommand.java:175)
at com.google.refine.commands.recon.GuessTypesOfColumnCommand.doPost(GuessTypesOfColumnCommand.java:93)
at com.google.refine.RefineServlet.service(RefineServlet.java:177)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
at org.mortbay.servlet.UserAgentFilter.doFilter(UserAgentFilter.java:81)
at org.mortbay.servlet.GzipFilter.doFilter(GzipFilter.java:132)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

And then this is what I get when I try to use DBpedia (created as explained on the website of RDF extension):

15:06:46.891 [ butterfly] GET /images/large-spinner.gif main
15:06:46.896 [ refine] POST /command/core/guess-types-of-column (5ms)
15:06:46.903 [ butterfly] POST /extension/rdf-extension/services/dbpedia main
15:06:46.922 [ rdf_extension] recieving request for services/dbpedia (19ms)
15:06:46.923 [ rdf_extension] command is multi-reconcile (1ms)
15:06:46.923 [ rdf_extension] command is multi-reconcile, while service name is dbpedia (0ms)
15:06:47.433 [ org.mortbay.log] Error for /extension/rdf-extension/services/dbpedia (510ms)
java.lang.ExceptionInInitializerError
at com.hp.hpl.jena.sparql.core.NodeConst.(NodeConst.java:16)
at com.hp.hpl.jena.sparql.lang.ParserBase.(ParserBase.java:47)
at com.hp.hpl.jena.sparql.lang.ParserQueryBase.(ParserQueryBase.java:15)
at com.hp.hpl.jena.sparql.lang.sparql_10.SPARQLParser10Base.(SPARQLParser10Base.java:10)
at com.hp.hpl.jena.sparql.lang.sparql_10.SPARQLParser10.(SPARQLParser10.java:2180)
at com.hp.hpl.jena.sparql.lang.ParserSPARQL10.perform(ParserSPARQL10.java:77)
at com.hp.hpl.jena.sparql.lang.ParserSPARQL10.parse(ParserSPARQL10.java:39)
at com.hp.hpl.jena.query.QueryFactory.parse(QueryFactory.java:129)
at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:72)
at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:43)
at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:31)
at com.hp.hpl.jena.query.QueryExecutionFactory.sparqlService(QueryExecutionFactory.java:341)
at com.google.refine.org.deri.reconcile.rdf.executors.RemoteQueryExecutor.sparql(RemoteQueryExecutor.java:31)
at com.google.refine.org.deri.reconcile.rdf.endpoints.PlainSparqlQueryEndpoint.reconcileEntities(PlainSparqlQueryEndpoint.java:32)
at com.google.refine.org.deri.reconcile.rdf.RdfReconciliationService.reconcile(RdfReconciliationService.java:69)
at com.google.refine.org.deri.reconcile.model.AbstractReconciliationService.reconcile(AbstractReconciliationService.java:48)
at com.google.refine.org.deri.reconcile.ServiceRegistry.multiReconcile(ServiceRegistry.java:116)
at com.google.refine.org.deri.reconcile.GRefineServiceManager.multiReconcile(GRefineServiceManager.java:93)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.mozilla.javascript.MemberBox.invoke(MemberBox.java:161)
at org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:247)
at org.mozilla.javascript.optimizer.OptRuntime.call2(OptRuntime.java:76)
at org.mozilla.javascript.gen.c2._c5(file:/C:/Users/i069776/Documents/Google%20Refine/Repo/main/webapp/../../extensions/grefine-rdf-extension-0.6.0/grefine-rdf-extension-0.6.0/MOD-INF/controller.js:201)
at org.mozilla.javascript.gen.c2.call(file:/C:/Users/i069776/Documents/Google%20Refine/Repo/main/webapp/../../extensions/grefine-rdf-extension-0.6.0/grefine-rdf-extension-0.6.0/MOD-INF/controller.js)
at org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:398)
at org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3065)
at org.mozilla.javascript.gen.c2.call(file:/C:/Users/i069776/Documents/Google%20Refine/Repo/main/webapp/../../extensions/grefine-rdf-extension-0.6.0/grefine-rdf-extension-0.6.0/MOD-INF/controller.js)
at edu.mit.simile.butterfly.ButterflyModuleImpl$Controller.process(ButterflyModuleImpl.java:399)
at edu.mit.simile.butterfly.ButterflyModuleImpl$Controller.run(ButterflyModuleImpl.java:377)
at org.mozilla.javascript.Context.call(Context.java:515)
at org.mozilla.javascript.ContextFactory.call(ContextFactory.java:507)
at edu.mit.simile.butterfly.ButterflyModuleImpl.processScript(ButterflyModuleImpl.java:650)
at edu.mit.simile.butterfly.ButterflyModuleImpl.process(ButterflyModuleImpl.java:427)
at edu.mit.simile.butterfly.Butterfly.service(Butterfly.java:516)
at com.google.refine.RefineServlet.service(RefineServlet.java:200)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
at org.mortbay.servlet.UserAgentFilter.doFilter(UserAgentFilter.java:81)
at org.mortbay.servlet.GzipFilter.doFilter(GzipFilter.java:155)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:938)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.xerces.impl.dv.DVFactoryException: Schema factory class org.apache.xerces.impl.dv.xs.SchemaDVFactoryImpl does not extend from SchemaDVFactory.
at org.apache.xerces.impl.dv.SchemaDVFactory.getInstance(Unknown Source)
at org.apache.xerces.impl.dv.SchemaDVFactory.getInstance(Unknown Source)
at com.hp.hpl.jena.datatypes.xsd.XSDDatatype.(XSDDatatype.java:210)
at com.hp.hpl.jena.datatypes.xsd.XSDDatatype.(XSDDatatype.java:222)
at com.hp.hpl.jena.datatypes.xsd.impl.XSDFloat.(XSDFloat.java:44)
at com.hp.hpl.jena.datatypes.xsd.XSDDatatype.(XSDDatatype.java:55)
... 60 more
15:06:47.434 [ org.mortbay.log] Nested in java.lang.ExceptionInInitializerError: (1ms)
org.apache.xerces.impl.dv.DVFactoryException: Schema factory class org.apache.xerces.impl.dv.xs.SchemaDVFactoryImpl does not extend from SchemaDVFactory.
at org.apache.xerces.impl.dv.SchemaDVFactory.getInstance(Unknown Source)
at org.apache.xerces.impl.dv.SchemaDVFactory.getInstance(Unknown Source)
at com.hp.hpl.jena.datatypes.xsd.XSDDatatype.(XSDDatatype.java:210)
at com.hp.hpl.jena.datatypes.xsd.XSDDatatype.(XSDDatatype.java:222)
at com.hp.hpl.jena.datatypes.xsd.impl.XSDFloat.(XSDFloat.java:44)
at com.hp.hpl.jena.datatypes.xsd.XSDDatatype.(XSDDatatype.java:55)
at com.hp.hpl.jena.sparql.core.NodeConst.(NodeConst.java:16)
at com.hp.hpl.jena.sparql.lang.ParserBase.(ParserBase.java:47)
at com.hp.hpl.jena.sparql.lang.ParserQueryBase.(ParserQueryBase.java:15)
at com.hp.hpl.jena.sparql.lang.sparql_10.SPARQLParser10Base.(SPARQLParser10Base.java:10)
at com.hp.hpl.jena.sparql.lang.sparql_10.SPARQLParser10.(SPARQLParser10.java:2180)
at com.hp.hpl.jena.sparql.lang.ParserSPARQL10.perform(ParserSPARQL10.java:77)
at com.hp.hpl.jena.sparql.lang.ParserSPARQL10.parse(ParserSPARQL10.java:39)
at com.hp.hpl.jena.query.QueryFactory.parse(QueryFactory.java:129)
at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:72)
at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:43)
at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:31)
at com.hp.hpl.jena.query.QueryExecutionFactory.sparqlService(QueryExecutionFactory.java:341)
at com.google.refine.org.deri.reconcile.rdf.executors.RemoteQueryExecutor.sparql(RemoteQueryExecutor.java:31)
at com.google.refine.org.deri.reconcile.rdf.endpoints.PlainSparqlQueryEndpoint.reconcileEntities(PlainSparqlQueryEndpoint.java:32)
at com.google.refine.org.deri.reconcile.rdf.RdfReconciliationService.reconcile(RdfReconciliationService.java:69)
at com.google.refine.org.deri.reconcile.model.AbstractReconciliationService.reconcile(AbstractReconciliationService.java:48)
at com.google.refine.org.deri.reconcile.ServiceRegistry.multiReconcile(ServiceRegistry.java:116)
at com.google.refine.org.deri.reconcile.GRefineServiceManager.multiReconcile(GRefineServiceManager.java:93)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.mozilla.javascript.MemberBox.invoke(MemberBox.java:161)
at org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:247)
at org.mozilla.javascript.optimizer.OptRuntime.call2(OptRuntime.java:76)
at org.mozilla.javascript.gen.c2._c5(file:/C:/Users/i069776/Documents/Google%20Refine/Repo/main/webapp/../../extensions/grefine-rdf-extension-0.6.0/grefine-rdf-extension-0.6.0/MOD-INF/controller.js:201)
at org.mozilla.javascript.gen.c2.call(file:/C:/Users/i069776/Documents/Google%20Refine/Repo/main/webapp/../../extensions/grefine-rdf-extension-0.6.0/grefine-rdf-extension-0.6.0/MOD-INF/controller.js)
at org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:398)
at org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3065)
at org.mozilla.javascript.gen.c2.call(file:/C:/Users/i069776/Documents/Google%20Refine/Repo/main/webapp/../../extensions/grefine-rdf-extension-0.6.0/grefine-rdf-extension-0.6.0/MOD-INF/controller.js)
at edu.mit.simile.butterfly.ButterflyModuleImpl$Controller.process(ButterflyModuleImpl.java:399)
at edu.mit.simile.butterfly.ButterflyModuleImpl$Controller.run(ButterflyModuleImpl.java:377)
at org.mozilla.javascript.Context.call(Context.java:515)
at org.mozilla.javascript.ContextFactory.call(ContextFactory.java:507)
at edu.mit.simile.butterfly.ButterflyModuleImpl.processScript(ButterflyModuleImpl.java:650)
at edu.mit.simile.butterfly.ButterflyModuleImpl.process(ButterflyModuleImpl.java:427)
at edu.mit.simile.butterfly.Butterfly.service(Butterfly.java:516)
at com.google.refine.RefineServlet.service(RefineServlet.java:200)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
at org.mortbay.servlet.UserAgentFilter.doFilter(UserAgentFilter.java:81)
at org.mortbay.servlet.GzipFilter.doFilter(GzipFilter.java:155)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:938)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
15:06:47.444 [ command] Failed to guess cell types for load
{"q0":{"query":"Afghanistan","limit":3},"q1":{"query":"Albania","limit":3},"q2":{"query":"Algeria","limit":3},"q3":{"query":"American Samoa","limit":3},"q4":{"query":"Andorra","limit":3},"q5":{"query":"Angola","limit":3},"q6":{"query":"Antigua and Barbuda","limit":3},"q7":{"query":"Arab World","limit":3},"q8":{"query":"Argentina","limit":3},"q9":{"query":"Armenia","limit":3}} (10ms)
java.io.IOException: Server returned HTTP response code: 500 for URL: http://127.0.0.1:3333/extension/rdf-extension/services/dbpedia
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at com.google.refine.commands.recon.GuessTypesOfColumnCommand.guessTypes(GuessTypesOfColumnCommand.java:188)
at com.google.refine.commands.recon.GuessTypesOfColumnCommand.doPost(GuessTypesOfColumnCommand.java:93)
at com.google.refine.RefineServlet.service(RefineServlet.java:177)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
at org.mortbay.servlet.UserAgentFilter.doFilter(UserAgentFilter.java:81)
at org.mortbay.servlet.GzipFilter.doFilter(GzipFilter.java:132)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

thank you in advance!

In trying to use the extension when I get to the step of pointing to the ontology I want to map to I get the following error:

Error:org.apache.xerces.impl.dv.DVFactoryException: DTD factory class org.apache.xerces.impl.dv.dtd.DTDDVFactoryImpl does not extend from DTDDVFactory

Any thoughts?

Request to be able to indicate which Lucene index created from OWLIM-SE to be used.

Hi,

I've noticed that certain characters:

&, <, >, /, \ (and possibly more)

result in columns being skipped when saving RDF.

This is what the mappings looks like in the RDF Skeleton tab (you can see lots of ampersand codes in the column names):

and this is the RDF Preview (which shows a lot of missing columns due to the ampersands):

I manually renamed all of the columns to not include the interfering characters and the RDF Preview is as expected:

Many thanks,
Dan

I would like to have a separate output file for every subject in my generated rdf.

E.g.

<rdf:Description rdf:about="http://www.rubenianum.be/artefact/10003100"> ...
would lead to file 10003100.rdf when asking for rdf/xml output
and to file 10003100.ttl when asking for ttl output.

Every file would contain the triples with http://www.rubenianum.be/artefact/10003100 as subject.
And the triples related to blank nodes used as object.

<dcterms:extent rdf:nodeID="node164s51sepx1"/>

<rdf:Description rdf:nodeID="node164s51sepx1">
<rdf:type rdf:resource="http://purl.org/dc/terms/SizeOrDuration"/>
rdf:valuewol en zijde; 352 x 507 cm/rdf:value
/rdf:Description

Reported by Silver Oliver:

“Sometimes when you are added a class it does not recognise the prefix that you have already loaded. Asks for it again and then tells you it cant load it because it is already there.”

Hello,

I added some custom vocabularies in the file predefined_vocabs.tsv. But they are loaded once into the cache when Google Refine start.
When my vocabulary files are updated, I need to clear the cache of RDF extension and restart Refine in order to be able to see my vocabulary updates.

Is there an option available to have the predefined vocabularies up to date each time I create a new project ?

Or maybe it would be great to have a button in order to be able to refresh the predefined vocabularies ?

Hi,
the import of vocabularies doesn't work. All the vocabularies (rdf,rdfs,owl) that should come with the installation don't seem to have classes or properties. The same happens when adding a new prefix so when I try to edit the RDF skeleton I cannot use the "suggest" feature and cannot set any property. For example I tried to add the "foaf" prefix with the "http://xmlns.com/foaf/0.1/" URL but it didn't work. The same resulted trying to re-import the rdf vocabulary (http://www.w3.org/1999/02/22-rdf-syntax-ns#). Maybe it depends on the proxy since my machine is behind a proxy server. It is set in my browser (Mozilla Firefox 3.5.3) and I know Google Refine can read it because it can connect to Freebase to reconcile the data in the spreadsheet with that on Freebase.

Luigi

The OS is Linux Ubuntu 9

In my case I have 2 projects and in the more recent one I can't import prefixes that are already defined in the first project.

query syntax: http://owlim.ontotext.com/confluence/display/OWLIM/BigOWLIM+Advanced+Features#BigOWLIMAdvancedFeatures-RDFSearchFullTextSearchusingLucene

Hi,

When I tried to import an XML file, download (any one) from http://www.google.com/googlebooks/uspto-patents-grants-text.html, it did not represent all the fields. I even tried importing by not splitting into columns but it just showed three fields/columns. I am using version 2.0 of Google Refine on MAC OS.

What could possibly be the reason?

Please let me know.
Thanks.
Regards,
Amrapali

While using urlify() I noticed that German umlauts get simply trashed. I'm actually not sure how this could be done properly but I propose that the handling works a bit more intelligent than that, especially in regards of other languages which are not in ASCII.

Hi there,

Could you possibly add an enhancement to the plugin?

If you copy and paste this code into a GREL expression box:

if(type(value) == "number",if(value % 1 == 0,"int","float"),"string")

You will see that it identifies whether a value is a string, int or float.

I can't see how I could include this at the moment.

I would replace "string" with "@en", "int" with "^^http://www.w3.org/2001/XMLSchema#int" and "float" with "^^http://www.w3.org/2001/XMLSchema#float".

What do you think?

Thanks,
Dan

Martin Hepp requested support for xsd:float, xsd:string, xsd:boolean.

I can see the argument for xsd:boolean, but xsd:float is a bit redundant (why would anyone not choose xsd:double instead?) and adding xsd:string is in my eyes counterproductive, one should simply use plain literals instead. Deciding between plain literal and xsd:string is just one more completely meaningless decision that users would have to make.

This works when I leave the Graph URI empty.
However when using a graph URI I do not get any classes back.

While using queries with FROM from outside Refine
e.g.
query=PREFIX skos: http://www.w3.org/2004/02/skos/core#
SELECT DISTINCT ?concept ?searchLabel
FROM http://www.ec.eu/eurovoc
WHERE{{?concept a skos:Concept.}
{{?concept skos:prefLabel ?searchLabel.} UNION
{?concept skos:altLabel ?searchLabel.}}
FILTER (regex(str(?searchLabel),"Health", "i"))
FILTER (lang(?searchLabel)="en")
}
I get the expected results.

feature request by helenadeus

currently cell.recon.match.id can be used, but a support through the GUI would be handy!

Reported by Paul

RDF -> Add reconciliation service

• clicking 'OK' without filling in all required fields, gives correctly error message but "Adding new reconciliation service' keeps on spinning.

not to forget the re-implementation of manage vocabularies

I have a column with IDs like
10102010
that I want to use to create URIs.

But with integers this high the RDF output is e.g.
http://test.org/1.010201E7

The feature list indicates that it's possible to reconcile against an RDF dump. I'll see if I can work out from the source code how to do this, but it would be great to have an example or step by step instructions. Ideally, a tutorial which started with a well-known format such as CVS and covered the steps necessary to convert to RDF, load into reconciliation end point, and do the reconciliation would be fantastic.

when deleted through the UI, inform service registry of deletion (may be upon reconciliation dialog show up)

Hi,

I'm reconciling values and can see that simple punctuation differences results in no matches.

My column contains the values "Department for Business Innovation and Skills" whereas the values I want to reconcile against are "Department for Business, Innovation and Skills".

Endpoint:
http://services.data.gov.uk/reference/sparql

Type:
Generic SPARQL

Label:
rdfs:label

My extension makes reconciliation semi-automatic, which is why I'm trying to avoid any user input.

Do you have any suggestions so this reconciles automatically?

Thanks :)

When using an imported RDF skeleton (using Refine's "Extract" feature) in a different project the namespace vocabularies are not available anymore. To fix this I have to remove all the namespaces and add them again so the vocabularies are re-imported for that project.

It might be a good idea to store downloaded vocabularies globally so all projects can access them or add a button to download them manually.

In RDF schema Alignment I would like to have next to add and delete, edit facilities. also a reload option is needed

When working on a large RDF mapping it would be useful to be able to save the mapping from within the Schema Alignment dialog. Currently to force a save you have to click OK, then re-open the dialog.

Trying to use stardog as sparql endpoint for a reconciliation service.
However using the sparql endpoint http://localhost:8989/database/query from other environments works, I do not succeed in getting a result from within Google Refine.
BTW not using the search features, just plain sparl.

either do it automatically do this when serializing RDF or extend GREL with a xsd_fromat function that the user should explicitly use in her mapping (i.e. the expression for the literal should be something like: xsd_format(value,'date')

I like the second option more as it avoids having some 'magic' performed on behalf of the user.

opinions?

Should XML encoding be used when writing out the RDF? If a column name / cell value contains angular brackets for example - these break the document.

Following your invitation I'm opening an other issue...

To summarize: I'm actually using Google refine 2.5, Windows 7 and Google chrome as browser.

As first I'd like to know if is possible to add a new column using DBpedia like is already possible to do with Freebase, for example if I want to add a column with the population of the countries in my excel sheet retrieving it from the DBpedia ontology what I have to do? I tried to use "Add column by fetching URLs" using the properties available for the specific concept in the DBpedia ontology but I have no idea how to do that.

An other question is about the reconciliation refinement: when I want to match a concept in a cell that is unresolved and there is a mismatch with the name (ex: "Bahamas, The" in the excel sheet and the resource in dbpedia is "http://dbpedia.org/page/The_Bahamas") when I select "search for match" and I type just Bahamas to get the suggestion the resource from dbpedia is not available and this is quite wired because I did the reconciliation against it!
Thanks!

When a language tag like “@en” is entered, then the @ sign should be stripped off automatically. (Or the text box should be smart enough to prevent the user from making that mistake.)

When I add prefix
http://www.w3.org/2004/02/skos/core#
I don't get any error message, but nothing seems to be imported.
Afterward I don't get any auto-complete suggestions, and when I type skos:Concept I get the error described in Issue 2

Work around with inserting complete URI of course works for me.

Hello.
There are some way to view the triples of some turtle or rdf/xml file loaded as vocabulary for alignment?

Thanks.
FDO.

Creating a reconciliation service.
It appears in the list of reconciliation services availalble for use.
But once created I do not see a way to view its settings and/or to change them (e.g. type of query)

looks like LARQ does not support typed literals out of the box

I've tried to add the v0.5.1 (beta) extension to Google Refine 2.0 r1836 on Mac OS X 10.6.7
I've followed the installation instructions outlined here (http://lab.linkeddata.deri.ie/2010/grefine-rdf-extension/) and in the Refine support pages. I had to create a new 'extensions' folder in the Refine working directory before unzipping the downloaded DERI extension.
On restarting Google Refine with the new extension, however, I get the following warning:

Cannot launch Java application
Uncaught exception in main method: java.lang.Error: class org.apache.lucene.store.LockObtainFailedException: org.apache.lucene.store.LockObtainFailedException: Lock obtain timed out: NativeFSLock@/Users/wilbert/Library/Application Support/Google/Refine/cache/rdfExtension/export/luceneIndex/write.lock

Refine fails to load after this error. The error happens invariably as long as the extension is active (i.e. unzipped in the 'extensions' folder).
I've tried changing permissions on the directory indicated in the stack trace, to no avail.

Hi there,

Using the 0.5.3 version and latest Refine version, for the last two weeks, we've been getting a JavaScript alert when loading the project page.

Console log from Refine shows a null pointer exception when doing something with the Sindice service:

14:58:29.332 [ butterfly] GET /project main
14:58:29.580 [ butterfly] GET /wirings.js main
14:58:29.581 [ butterfly] GET /externals/jquery-1.4.2.min.js main
14:58:29.582 [ butterfly] GET /externals/jquery.cookie.js main
14:58:29.583 [ butterfly] GET /externals/jquery.eventstack-0.3.js main
14:58:29.583 [ butterfly] GET /externals/suggest/suggest-1.2.1.min.js main
14:58:29.584 [ butterfly] GET /externals/jquery-ui/jquery-ui-1.8.custom.min.js main
14:58:29.599 [ butterfly] GET /externals/imgareaselect/jquery.imgareaselect.js main
14:58:29.693 [ butterfly] GET /externals/date.js main
14:58:29.693 [ butterfly] GET /externals/CFInstall.min.js main
14:58:29.694 [ butterfly] GET /scripts/chrome-frame.js main
14:58:29.694 [ butterfly] GET /scripts/project.js main
14:58:29.700 [ butterfly] GET /scripts/util/misc.js main
14:58:29.756 [ butterfly] GET /scripts/util/url.js main
14:58:29.772 [ butterfly] GET /scripts/util/string.js main
14:58:29.797 [ butterfly] GET /scripts/util/ajax.js main
14:58:29.797 [ butterfly] GET /scripts/util/menu.js main
14:58:29.807 [ butterfly] GET /scripts/util/dialog.js main
14:58:29.808 [ butterfly] GET /scripts/util/custom-suggest.js main
14:58:29.808 [ butterfly] GET /scripts/util/dom.js main
14:58:29.808 [ butterfly] GET /scripts/util/encoding.js main
14:58:29.825 [ butterfly] GET /scripts/widgets/histogram-widget.js main
14:58:29.825 [ butterfly] GET /scripts/widgets/slider-widget.js main
14:58:29.825 [ butterfly] GET /scripts/project/browsing-engine.js main
14:58:29.825 [ butterfly] GET /scripts/project/history-panel.js main
14:58:29.837 [ butterfly] GET /scripts/project/process-panel.js main
14:58:29.837 [ butterfly] GET /scripts/project/extension-bar.js main
14:58:29.883 [ butterfly] GET /scripts/project/summary-bar.js main
14:58:29.883 [ butterfly] GET /scripts/project/exporters.js main
14:58:29.910 [ butterfly] GET /scripts/project/scripting.js main
14:58:29.911 [ butterfly] GET /scripts/facets/list-facet.js main
14:58:29.911 [ butterfly] GET /scripts/facets/timerange-facet.js main
14:58:29.911 [ butterfly] GET /scripts/facets/scatterplot-facet.js main
14:58:29.911 [ butterfly] GET /scripts/facets/text-search-facet.js main
14:58:29.911 [ butterfly] GET /scripts/facets/range-facet.js main
14:58:29.926 [ butterfly] GET /scripts/views/data-table/data-table-view.js main
14:58:29.927 [ butterfly] GET /scripts/views/data-table/cell-ui.js main
14:58:29.928 [ butterfly] GET /scripts/views/data-table/column-header-ui.js main
14:58:29.929 [ butterfly] GET /scripts/views/data-table/menu-facets.js main
14:58:29.929 [ butterfly] GET /scripts/views/data-table/menu-edit-cells.js main
14:58:29.930 [ butterfly] GET /scripts/views/data-table/menu-edit-column.js main
14:58:29.993 [ butterfly] GET /scripts/views/data-table/menu-reconcile.js main
14:58:29.993 [ butterfly] GET /scripts/reconciliation/recon-manager.js main
14:58:29.993 [ butterfly] GET /scripts/reconciliation/recon-dialog.js main
14:58:29.994 [ butterfly] GET /scripts/reconciliation/freebase-query-panel.js main
14:58:30.008 [ butterfly] GET /scripts/reconciliation/standard-service-panel.js main
14:58:30.056 [ butterfly] GET /scripts/dialogs/expression-preview-dialog.js main
14:58:30.056 [ butterfly] GET /scripts/dialogs/clustering-dialog.js main
14:58:30.056 [ butterfly] GET /scripts/dialogs/scatterplot-dialog.js main
14:58:30.056 [ butterfly] GET /scripts/dialogs/templating-exporter-dialog.js main
14:58:30.056 [ butterfly] GET /scripts/dialogs/column-reordering-dialog.js main
14:58:30.057 [ butterfly] GET /scripts/dialogs/custom-tabular-exporter-dialog.js main
14:58:30.077 [ butterfly] GET /extension/rdf-extension/scripts/rdf-data-table-view.js main
14:58:30.077 [ butterfly] GET /extension/rdf-extension/scripts/menu-bar-extensions.js main
14:58:30.078 [ butterfly] GET /extension/rdf-extension/scripts/rdf-schema-alignment.js main
14:58:30.078 [ butterfly] GET /extension/rdf-extension/scripts/rdf-schema-alignment-ui-node.js main
14:58:30.078 [ butterfly] GET /extension/rdf-extension/scripts/rdf-schema-alignment-ui-link.js main
14:58:30.078 [ butterfly] GET /extension/rdf-extension/scripts/suggestterm.suggest.js main
14:58:30.117 [ rdf_extension] recieving request for scripts/rdf-schema-alignment.js (39ms)
14:58:30.118 [ rdf_extension] recieving request for scripts/menu-bar-extensions.js (1ms)
14:58:30.119 [ rdf_extension] recieving request for scripts/rdf-schema-alignment-ui-link.js (1ms)
14:58:30.119 [ rdf_extension] recieving request for scripts/rdf-data-table-view.js (0ms)
14:58:30.123 [ rdf_extension] recieving request for scripts/suggestterm.suggest.js (4ms)
14:58:30.123 [ rdf_extension] recieving request for scripts/rdf-schema-alignment-ui-node.js (0ms)
14:58:30.136 [ butterfly] GET /extension/rdf-extension/scripts/rdf-schema-manage-vocabs-widget.js main
14:58:30.151 [ rdf_extension] recieving request for scripts/rdf-schema-manage-vocabs-widget.js (15ms)
14:58:30.191 [ butterfly] GET /extension/rdf-extension/scripts/rdf-schema-vocabulary-manager.js main
14:58:30.191 [ butterfly] GET /extension/rdf-extension/scripts/rdf-schema-new-prefix-widget.js main
14:58:30.191 [ butterfly] GET /extension/rdf-extension/scripts/externals/jquery.form.js main
14:58:30.191 [ butterfly] GET /extension/rdf-extension/scripts/sindice/sindice-dialog.js main
14:58:30.192 [ butterfly] GET /extension/linkedgov/scripts/project.js main
14:58:30.200 [ butterfly] GET /extension/linkedgov/externals/jquery-ui/jquery-ui.datepicker.js main
14:58:30.220 [ rdf_extension] recieving request for scripts/sindice/sindice-dialog.js (20ms)
14:58:30.223 [ rdf_extension] recieving request for scripts/rdf-schema-vocabulary-manager.js (3ms)
14:58:30.223 [ rdf_extension] recieving request for scripts/rdf-schema-new-prefix-widget.js (0ms)
14:58:30.224 [ rdf_extension] recieving request for scripts/externals/jquery.form.js (1ms)
14:58:30.270 [ butterfly] GET /extension/freebase/scripts/extension.js main
14:58:30.270 [ butterfly] GET /extension/freebase/scripts/util/freebase.js main
14:58:30.270 [ butterfly] GET /extension/freebase/scripts/util/sign.js main
14:58:30.328 [ butterfly] GET /extension/freebase/scripts/dialogs/freebase-loading-dialog.js main
14:58:30.382 [ butterfly] GET /extension/freebase/scripts/dialogs/extend-data-preview-dialog.js main
14:58:30.417 [ butterfly] GET /extension/freebase/scripts/dialogs/schema-alignment/dialog.js main
14:58:30.417 [ butterfly] GET /extension/freebase/scripts/dialogs/schema-alignment/ui-node.js main
14:58:30.417 [ butterfly] GET /extension/freebase/scripts/dialogs/schema-alignment/ui-link.js main
14:58:30.439 [ butterfly] GET /extension/gdata/scripts/gdata-extension.js main
14:58:30.439 [ butterfly] GET /extension/gdata/scripts/project/exporters.js main
14:58:30.439 [ butterfly] GET /extension/sample/scripts/project-injection.js main
14:58:30.457 [ butterfly] GET /externals/jquery-ui/css/ui-lightness/jquery-ui-1.8.custom.css main
14:58:30.457 [ butterfly] GET /externals/suggest/css/suggest-1.2.1.min.css main
14:58:30.495 [ butterfly] GET /externals/imgareaselect/css/imgareaselect-default.css main
14:58:30.529 [ butterfly] GET /styles/common.less main
14:58:30.529 [ butterfly] GET /styles/pure.css main
14:58:30.529 [ butterfly] GET /styles/jquery-ui-overrides.less main
14:58:30.529 [ butterfly] GET /styles/util/menu.less main
14:58:30.529 [ butterfly] GET /styles/util/dialog.less main
14:58:30.538 [ butterfly] GET /styles/util/custom-suggest.less main
14:58:30.608 [ butterfly] GET /styles/util/encoding.less main
14:58:30.608 [ butterfly] GET /styles/project.less main
14:58:30.608 [ butterfly] GET /styles/project/sidebar.less main
14:58:30.609 [ butterfly] GET /styles/project/facets.less main
14:58:30.609 [ butterfly] GET /styles/project/process.less main
14:58:30.612 [ butterfly] GET /styles/widgets/histogram-widget.less main
14:58:30.645 [ butterfly] GET /styles/widgets/slider-widget.less main
14:58:30.645 [ butterfly] GET /styles/views/data-table-view.less main
14:58:30.653 [ butterfly] GET /styles/dialogs/expression-preview-dialog.less main
14:58:30.654 [ butterfly] GET /styles/dialogs/clustering-dialog.less main
14:58:30.654 [ butterfly] GET /styles/dialogs/scatterplot-dialog.less main
14:58:30.654 [ butterfly] GET /styles/dialogs/column-reordering-dialog.less main
14:58:30.657 [ butterfly] GET /styles/dialogs/custom-tabular-exporter-dialog.less main
14:58:30.693 [ butterfly] GET /styles/reconciliation/recon-dialog.less main
14:58:30.693 [ butterfly] GET /styles/reconciliation/standard-service-panel.less main
14:58:30.693 [ butterfly] GET /extension/rdf-extension/styles/rdf-schema-alignment-dialog.css main
14:58:30.694 [ butterfly] GET /extension/rdf-extension/styles/rdf-reconcile-service.css main
14:58:30.694 [ butterfly] GET /extension/rdf-extension/styles/sindice/recon-dialog.css main
14:58:30.695 [ butterfly] GET /extension/linkedgov/styles/project.css main
14:58:30.721 [ butterfly] GET /extension/linkedgov/externals/jquery-ui/css/jquery-ui.datepicker.less main
14:58:30.722 [ rdf_extension] recieving request for styles/sindice/recon-dialog.css (1ms)
14:58:30.724 [ rdf_extension] recieving request for styles/rdf-reconcile-service.css (2ms)
14:58:30.725 [ butterfly] GET /extension/freebase/styles/dialogs/freebase-loading-dialog.less main
14:58:30.725 [ rdf_extension] recieving request for styles/rdf-schema-alignment-dialog.css (0ms)
14:58:30.726 [ butterfly] GET /extension/freebase/styles/dialogs/extend-data-preview-dialog.less main
14:58:30.726 [ butterfly] GET /extension/freebase/styles/dialogs/schema-alignment-dialog.less main
14:58:30.740 [ butterfly] GET /extension/sample/styles/project-injection.less main
14:58:30.750 [ refine] GET /command/core/get-preference (10ms)
14:58:30.751 [ butterfly] GET /images/logo-googlerefine-30.png main
14:58:31.271 [ refine] POST /command/rdf-extension/initializeServices (520ms)
14:58:31.275 [ command] Exception caught (4ms)
java.lang.NullPointerException
at java.util.Properties$LineReader.readLine(Properties.java:418)
at java.util.Properties.load0(Properties.java:337)
at java.util.Properties.load(Properties.java:325)
at com.google.refine.org.deri.reconcile.rdf.factories.PreviewResourceCannedQuery.(PreviewResourceCannedQuery.java:25)
at com.google.refine.org.deri.reconcile.sindice.SindiceService.(SindiceService.java:62)
at com.google.refine.org.deri.reconcile.sindice.SindiceService.(SindiceService.java:49)
at com.google.refine.org.deri.reconcile.commands.InitializeServicesCommand.getReconciliationService(InitializeServicesCommand.java:22)
at com.google.refine.org.deri.reconcile.commands.AbstractAddServiceCommand.doPost(AbstractAddServiceCommand.java:25)
at com.google.refine.RefineServlet.service(RefineServlet.java:177)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
at org.mortbay.servlet.UserAgentFilter.doFilter(UserAgentFilter.java:81)
at org.mortbay.servlet.GzipFilter.doFilter(GzipFilter.java:132)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:938)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:680)
14:58:31.279 [ butterfly] GET /extension/linkedgov/html/project/typing-panel.html main
14:58:31.279 [ butterfly] GET /images/large-spinner.gif main
14:58:31.281 [ refine] GET /command/core/get-project-metadata (2ms)
14:58:31.285 [ butterfly] GET /extension/linkedgov/images/logo-small.png main
14:58:31.434 [ refine] GET /command/core/get-models (149ms)
14:58:31.434 [ butterfly] GET /extension/linkedgov/scripts/project/typing-panel.js main
14:58:31.479 [ refine] POST /command/core/get-rows (45ms)
14:58:31.516 [ butterfly] GET /images/down-arrow.png main
14:58:31.517 [ butterfly] GET /images/small-spinner.gif main
14:58:31.531 [ butterfly] GET /images/logo-gem-40.png main
14:58:31.531 [ refine] GET /command/core/get-history (0ms)
14:58:31.548 [ butterfly] GET /scripts/views/data-table/column-header.html main
14:58:31.594 [ butterfly] GET /scripts/project/history-panel.html main
14:58:31.627 [ butterfly] GET /scripts/project/history-entry.html main
14:58:31.848 [ refine] GET /command/core/get-history (221ms)
14:58:31.848 [ butterfly] GET /images/menu-dropdown.png main
14:58:31.848 [ butterfly] GET /images/star-flag-map.png main
14:58:31.854 [ butterfly] GET /images/edit-map.png main
14:58:32.822 [ butterfly] GET /extension/linkedgov/images/columns_to_rows_wizard_icon.png main
14:58:32.822 [ butterfly] GET /extension/linkedgov/images/rows_to_columns_wizard_icon.png main
14:58:32.822 [ butterfly] GET /extension/linkedgov/images/date_and_time_wizard_icon.png main
14:58:32.822 [ butterfly] GET /extension/linkedgov/images/measurements_wizard_icon.png main
14:58:32.822 [ butterfly] GET /extension/linkedgov/images/geolocation_wizard_icon.png main
14:58:32.822 [ butterfly] GET /extension/linkedgov/images/address_wizard_icon.png main
14:58:32.837 [ butterfly] GET /extension/linkedgov/scripts/project/address-wizard.js main
14:58:32.839 [ butterfly] GET /extension/linkedgov/scripts/project/datetime-wizard.js main
14:58:32.845 [ butterfly] GET /extension/linkedgov/scripts/project/geolocation-wizard.js main
14:58:32.851 [ butterfly] GET /extension/linkedgov/scripts/project/measurements-wizard.js main
14:58:32.868 [ butterfly] GET /extension/linkedgov/scripts/project/columnsToRows-wizard.js main
14:58:32.868 [ butterfly] GET /extension/linkedgov/scripts/project/rowsToColumns-wizard.js main
14:58:32.869 [ butterfly] GET /extension/linkedgov/scripts/project/refine-operations.js main
14:58:32.869 [ butterfly] GET /extension/linkedgov/scripts/project/rdf-operations.js main
14:58:34.320 [ butterfly] GET /extension/linkedgov/images/arrow.png main
14:58:34.343 [ butterfly] GET /extension/linkedgov/images/rdf-small.png main

does not work

Hi,
I would like to save the schema alignment skeleton without all the istances, a file in which it is stated that a column name is mapped to that ontology term and so on. Is that possible ?

Regards

Luigi

different constant blank nodes in the schema are merged in the RDF output

In Windows 7, the folder to deposit the extensions will be under
\webapp\extensions

Entering date and time values in the correct format is quite a challenge. Would be great to have a mini calender to assist with data entry for constant values.

(Requested by Martin Hepp)