Blazegraph (powered by bigdata) / Discussion / Help: Lexical error at line 1, column 8 while trying to load data from python

Lexical error at line 1, column 8 while trying to load data from python

Forum: Help

Creator: SUNIL CHINNAMGARI

Created: 2017-02-23

Updated: 2017-02-23

SUNIL CHINNAMGARI - 2017-02-23

I am new to blazegraph and sparql. I am trying to load triples to blazegraph namespace through python with the code below -

from pymantic import sparql
server = sparql.SPARQLServer('http://10.167.97.224:9999/blazegraph/sparql')
server.update('load C:\Users\a571410\Desktop\schema.nt')

It ended up in an error below -

SPARQLQueryException: {'transfer-encoding': 'chunked', 'status': '400', 'content-type': 'text/plain', 'server': 'Jetty(9.2.z-SNAPSHOT)'}: SPARQL-UPDATE: updateStr=load C:\Users\a571410\Desktop\schema.nt
java.util.concurrent.ExecutionException: org.openrdf.query.MalformedQueryException: Lexical error at line 1, column 8. Encountered: "\" (92), after : ""
at java.util.concurrent.FutureTask.report(Unknown Source)
at java.util.concurrent.FutureTask.get(Unknown Source)
at com.bigdata.rdf.sail.webapp.BigdataServlet.submitApiTask(BigdataServlet.java:281)
at com.bigdata.rdf.sail.webapp.QueryServlet.doSparqlUpdate(QueryServlet.java:448)
at com.bigdata.rdf.sail.webapp.QueryServlet.doPost(QueryServlet.java:229)
at com.bigdata.rdf.sail.webapp.RESTServlet.doPost(RESTServlet.java:269)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:769)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1125)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1059)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at org.eclipse.jetty.server.Server.handle(Server.java:497)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:248)
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:610)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:539)
at java.lang.Thread.run(Unknown Source)
Caused by: org.openrdf.query.MalformedQueryException: Lexical error at line 1, column 8. Encountered: "\" (92), after : ""
at com.bigdata.rdf.sail.sparql.Bigdata2ASTSPARQLParser.parseUpdate2(Bigdata2ASTSPARQLParser.java:307)
at com.bigdata.rdf.sail.webapp.QueryServlet$SparqlUpdateTask.call(QueryServlet.java:521)
at com.bigdata.rdf.sail.webapp.QueryServlet$SparqlUpdateTask.call(QueryServlet.java:460)
at com.bigdata.rdf.task.ApiTaskForIndexManager.call(ApiTaskForIndexManager.java:68)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
... 1 more
Caused by: com.bigdata.rdf.sail.sparql.ast.TokenMgrError: Lexical error at line 1, column 8. Encountered: "\" (92), after : ""
at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilderTokenManager.getNextToken(SyntaxTreeBuilderTokenManager.java:3994)
at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.jj_ntk(SyntaxTreeBuilder.java:9633)
at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.Load(SyntaxTreeBuilder.java:8020)
at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.Update(SyntaxTreeBuilder.java:7867)
at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.UpdateContainer(SyntaxTreeBuilder.java:174)
at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.UpdateSequence(SyntaxTreeBuilder.java:116)
at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.parseUpdateSequence(SyntaxTreeBuilder.java:49)
at com.bigdata.rdf.sail.sparql.Bigdata2ASTSPARQLParser.parseUpdate2(Bigdata2ASTSPARQLParser.java:185)
... 7 more

Query: load C:\Users\a571410\Desktop\schema.nt

Can someone help guide on how to progress further? I could find any solutions on google for this specific problem

If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
- Bryan Thompson - 2017-02-23
  
  The syntax for LOAD is defined at [1]. The IRIRef production (for the
  source data) is defined as [2].
  
  You need to specify something like LOAD <file: c:="" ...="">
  
  The angle brackets indicate a URI.
  
  The URI needs to be a URI (in your case) in the local file system (since
  that is where the file is).
  
  Thanks,
  Bryan
  
  [1] https://www.w3.org/TR/sparql11-update/#load
  [2]
  IRIREF ::= '<' ([^<>"{}|^`]-[#x00-#x20])* '>'
  
  On Thu, Feb 23, 2017 at 1:58 AM, SUNIL CHINNAMGARI <happylife80@users.sf.net
  
  wrote:
  
  I am new to blazegraph and sparql. I am trying to load triples to
  blazegraph namespace through python with the code below -
  
  from pymantic import sparql
  server = sparql.SPARQLServer('http://10.167.97.224:9999/blazegraph/sparql
  ')
  server.update('load C:\Users\a571410\Desktop\schema.nt')
  
  It ended up in an error below -
  
  SPARQLQueryException: {'transfer-encoding': 'chunked', 'status': '400',
  'content-type': 'text/plain', 'server': 'Jetty(9.2.z-SNAPSHOT)'}:
  SPARQL-UPDATE: updateStr=load C:\Users\a571410\Desktop\schema.nt
  java.util.concurrent.ExecutionException: org.openrdf.query.MalformedQueryException:
  Lexical error at line 1, column 8. Encountered: "\" (92), after : ""
  at java.util.concurrent.FutureTask.report(Unknown Source)
  at java.util.concurrent.FutureTask.get(Unknown Source)
  at com.bigdata.rdf.sail.webapp.BigdataServlet.submitApiTask(
  BigdataServlet.java:281)
  at com.bigdata.rdf.sail.webapp.QueryServlet.doSparqlUpdate(
  QueryServlet.java:448)
  at com.bigdata.rdf.sail.webapp.QueryServlet.doPost(QueryServlet.java:229)
  at com.bigdata.rdf.sail.webapp.RESTServlet.doPost(RESTServlet.java:269)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
  at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:769)
  at org.eclipse.jetty.servlet.ServletHandler.doHandle(
  ServletHandler.java:585)
  at org.eclipse.jetty.server.handler.ScopedHandler.handle(
  ScopedHandler.java:143)
  at org.eclipse.jetty.security.SecurityHandler.handle(
  SecurityHandler.java:577)
  at org.eclipse.jetty.server.session.SessionHandler.
  doHandle(SessionHandler.java:223)
  at org.eclipse.jetty.server.handler.ContextHandler.
  doHandle(ContextHandler.java:1125)
  at org.eclipse.jetty.servlet.ServletHandler.doScope(
  ServletHandler.java:515)
  at org.eclipse.jetty.server.session.SessionHandler.
  doScope(SessionHandler.java:185)
  at org.eclipse.jetty.server.handler.ContextHandler.
  doScope(ContextHandler.java:1059)
  at org.eclipse.jetty.server.handler.ScopedHandler.handle(
  ScopedHandler.java:141)
  at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(
  ContextHandlerCollection.java:215)
  at org.eclipse.jetty.server.handler.HandlerCollection.
  handle(HandlerCollection.java:110)
  at org.eclipse.jetty.server.handler.HandlerWrapper.handle(
  HandlerWrapper.java:97)
  at org.eclipse.jetty.server.Server.handle(Server.java:497)
  at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)
  at org.eclipse.jetty.server.HttpConnection.onFillable(
  HttpConnection.java:248)
  at org.eclipse.jetty.io.AbstractConnection$2.run(
  AbstractConnection.java:540)
  at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(
  QueuedThreadPool.java:610)
  at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(
  QueuedThreadPool.java:539)
  at java.lang.Thread.run(Unknown Source)
  Caused by: org.openrdf.query.MalformedQueryException: Lexical error at
  line 1, column 8. Encountered: "\" (92), after : ""
  at com.bigdata.rdf.sail.sparql.Bigdata2ASTSPARQLParser.parseUpdate2(
  Bigdata2ASTSPARQLParser.java:307)
  at com.bigdata.rdf.sail.webapp.QueryServlet$SparqlUpdateTask.
  call(QueryServlet.java:521)
  at com.bigdata.rdf.sail.webapp.QueryServlet$SparqlUpdateTask.
  call(QueryServlet.java:460)
  at com.bigdata.rdf.task.ApiTaskForIndexManager.call(
  ApiTaskForIndexManager.java:68)
  at java.util.concurrent.FutureTask.run(Unknown Source)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
  ... 1 more
  Caused by: com.bigdata.rdf.sail.sparql.ast.TokenMgrError: Lexical error
  at line 1, column 8. Encountered: "\" (92), after : ""
  at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilderTokenManager.
  getNextToken(SyntaxTreeBuilderTokenManager.java:3994)
  at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.jj_ntk(
  SyntaxTreeBuilder.java:9633)
  at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.Load(
  SyntaxTreeBuilder.java:8020)
  at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.Update(
  SyntaxTreeBuilder.java:7867)
  at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.UpdateContainer(
  SyntaxTreeBuilder.java:174)
  at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.UpdateSequence(
  SyntaxTreeBuilder.java:116)
  at com.bigdata.rdf.sail.sparql.ast.SyntaxTreeBuilder.parseUpdateSequence(
  SyntaxTreeBuilder.java:49)
  at com.bigdata.rdf.sail.sparql.Bigdata2ASTSPARQLParser.parseUpdate2(
  Bigdata2ASTSPARQLParser.java:185)
  ... 7 more
  
  Query: load C:\Users\a571410\Desktop\schema.nt
  
  Can someone help guide on how to progress further? I could find any
  solutions on google for this specific problem
  
  Lexical error at line 1, column 8 while trying to load data from python
  https://sourceforge.net/p/bigdata/discussion/676946/thread/4dafdfe6/?limit=25#e327
  
  Sent from sourceforge.net because you indicated interest in
  https://sourceforge.net/p/bigdata/discussion/676946/
  
  To unsubscribe from further messages, please visit
  https://sourceforge.net/auth/subscriptions/
  
  If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

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Lexical error at line 1, column 8 while trying to load data from python