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Posted to dev@manifoldcf.apache.org by "Karl Wright (JIRA)" <ji...@apache.org> on 2010/10/31 20:12:28 UTC
[jira] Resolved: (CONNECTORS-109) Queue status report fails under
Derby
[ https://issues.apache.org/jira/browse/CONNECTORS-109?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Karl Wright resolved CONNECTORS-109.
------------------------------------
Resolution: Fixed
Fix Version/s: LCF Release 0.5
Hooked up user-defined functions to perform regular expression matching in Derby. r1029455.
> Queue status report fails under Derby
> -------------------------------------
>
> Key: CONNECTORS-109
> URL: https://issues.apache.org/jira/browse/CONNECTORS-109
> Project: ManifoldCF
> Issue Type: Bug
> Components: Framework crawler agent
> Reporter: Karl Wright
> Assignee: Karl Wright
> Fix For: LCF Release 0.5
>
>
> If you try to use the queue status report with Derby as the database, you get the following error:
> 2010-09-17 18:03:21.558:WARN::Nested in javax.servlet.ServletException: org.apac
> he.acf.core.interfaces.ACFException: Database exception: Exception doing query:
> Syntax error: Encountered "SUBSTRING" at line 1, column 8.:
> org.apache.acf.core.interfaces.ACFException: Database exception: Exception doing
> query: Syntax error: Encountered "SUBSTRING" at line 1, column 8.
> at org.apache.acf.core.database.Database.executeViaThread(Database.java:
> 421)
> at org.apache.acf.core.database.Database.executeUncachedQuery(Database.j
> ava:465)
> at org.apache.acf.core.database.Database$QueryCacheExecutor.create(Datab
> ase.java:1072)
> at org.apache.acf.core.cachemanager.CacheManager.findObjectsAndExecute(C
> acheManager.java:144)
> at org.apache.acf.core.database.Database.executeQuery(Database.java:167)
> at org.apache.acf.core.database.DBInterfaceDerby.performQuery(DBInterfac
> eDerby.java:751)
> at org.apache.acf.crawler.jobs.JobManager.genQueueStatus(JobManager.java
> :5981)
> at org.apache.jsp.queuestatus_jsp._jspService(queuestatus_jsp.java:769)
> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper
> .java:377)
> at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:3
> 13)
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
> 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.handle(ServletHandler.java:3
> 90)
> at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.jav
> a:216)
> at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:1
> 82)
> at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:7
> 65)
> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
> at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:327)
> at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126)
> at org.apache.jasper.runtime.PageContextImpl.doForward(PageContextImpl.j
> ava:706)
> at org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.jav
> a:677)
> at org.apache.jsp.execute_jsp._jspService(execute_jsp.java:1291)
> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper
> .java:377)
> at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:3
> 13)
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
> 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.handle(ServletHandler.java:3
> 90)
> at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.jav
> a:216)
> at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:1
> 82)
> at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:7
> 65)
> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
> at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.
> java:114)
> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:1
> 52)
> at org.mortbay.jetty.Server.handle(Server.java:326)
> at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:54
> 2)
> at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnectio
> n.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$Connection.run(SocketConnector.
> java:228)
> at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java (502)
> The reason for the error is that Derby does not recognize the SUBSTRING(...) operation, which extracts parts of a string based on a regular expression. In other places in Derby where regular expressions were required, I've been successful in using LIKE clauses instead, but this is harder because a GROUP BY is used that depends on the part of the string selected by the user.
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