Alessandro & all, I was having the same issue with Tika crashing on certain PDFs. I also noticed the bug where no content was extracted after upgrading Tika.
When I went to the SOLR issue you link to below, I applied all the patches, downloaded the Tika 0.8 jars, restarted tomcat, posted a file via curl, and got the following error: SEVERE: java.lang.NoSuchMethodError: org.apache.solr.core.SolrResourceLoader.getClassLoader()Ljava/lang/ClassLoader; at org.apache.solr.handler.extraction.ExtractingRequestHandler.inform(ExtractingRequestHandler.java:93) at org.apache.solr.core.RequestHandlers$LazyRequestHandlerWrapper.getWrappedHandler(RequestHandlers.java:244) at org.apache.solr.core.RequestHandlers$LazyRequestHandlerWrapper.handleRequest(RequestHandlers.java:231) at org.apache.solr.core.SolrCore.execute(SolrCore.java:1316) at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:338) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:241) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:859) at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:579) at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1555) at java.lang.Thread.run(Thread.java:619) This is really weird because I DID apply the SolrResourceLoader patch that adds the getClassLoader method. I even verified by going opening up the JARs and looking at the class file in Eclipse...I can see the SolrResourceLoader.getClassLoader() method. Does anyone know why it can't find the method? After patching the source I did ant clean dist in the base directory of the Solr source tree and everything looked like it compiles (BUILD SUCCESSFUL). Then I copied all the jars from dist/ and all the library dependencies from contrib/extraction/lib/ into my SOLR_HOME. Restarting tomcat, everything in the logs looked good. I'm stumped. It would be very nice to have a Solr implementation using the newest versions of PDFBox & Tika and actually have content being extracted...=) Best, Dave -----Original Message----- From: Alessandro Benedetti [mailto:benedetti.ale...@gmail.com] Sent: Tuesday, July 27, 2010 6:09 AM To: solr-user@lucene.apache.org Subject: Re: Extracting PDF text/comment/callout/typewriter boxes with Solr CELL/Tika/PDFBox Hi Jon, During the last days we front the same problem. Using Solr 1.4.1 classic (tika 0.4 ),from some pdf files we can't extract content and from others, Solr throws an exception during the Indexing Process . You must: Update tika libraries (into /contrib/extraction/lib)with tika-core.0.8 snapshot and tika-parsers 0.8. Update PdfBox and all related libraries. After that You have to patch Solr 1.4.1 following this patch : https://issues.apache.org/jira/browse/SOLR-1902?page=com.atlassian.jira.plugin.ext.subversion%3Asubversion-commits-tabpanel This is the firts way to solve the problem. Using Solr 1.4.1 (with tika 0.8 snapshot and pdfbox updated) no exception is thrown during the Indexing process, but no content is extracted. Using last Solr trunk (with tika 0.8 snapshot and pdfbox updated) all sounds good but we don't know how stableit is! I hope you have now a clear vision of this issue, Best Regards 2010/7/26 Sharp, Jonathan <jsh...@coh.org> > > Every so often I need to index new batches of scanned PDFs and occasionally > Adobe's OCR can't recognize the text in a couple of these documents. In > these situations I would like to type in a small amount of text onto the > document and have it be extracted by Solr CELL. > > Adobe Pro 9 has a number of different ways to add text directly to a PDF > file: > > *Typewriter > *Sticky Note > *Callout boxes > *Text boxes > > I tried indexing documents with each of these text additions with Solr > 1.4.1 + Solr CELL but can't extract the text in any of these boxes. > > If someone has modified their Solr CELL installation to use more recent > versions of Tika (above 0.4) or PDFBox (above 0.7.3) and/or can can comment > on whether newer versions can pull the text out of any of these various text > boxes I'd appreciate that very much. > > -Jon > > > > > --------------------------------------------------------------------- > SECURITY/CONFIDENTIALITY WARNING: > This message and any attachments are intended solely for the individual or > entity to which they are addressed. 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If, due to > the security risks, you do not wish to receive further communications via > e-mail, please reply to this message and inform the sender that you do not > wish to receive further e-mail from the sender. > > --------------------------------------------------------------------- > > -- -------------------------- Benedetti Alessandro Personal Page: http://tigerbolt.altervista.org "Tyger, tyger burning bright In the forests of the night, What immortal hand or eye Could frame thy fearful symmetry?" William Blake - Songs of Experience -1794 England
