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https://issues.apache.org/jira/browse/PDFBOX-3581?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15684459#comment-15684459
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Dmitri Russu commented on PDFBOX-3581:
--------------------------------------
my point now is to have working multithread, limitation is not required into a
sample code, I will read about Executors thanks
> PDFTextStripper not working with multiple threads
> -------------------------------------------------
>
> Key: PDFBOX-3581
> URL: https://issues.apache.org/jira/browse/PDFBOX-3581
> Project: PDFBox
> Issue Type: Bug
> Components: Text extraction
> Affects Versions: 2.0.3
> Environment: Ubuntu 15.1
> Reporter: Dmitri Russu
> Labels: multithreading
>
> Hi, I try to use pdfbox to extract text from a list of files, the problem is
> PDFTextStripper does not work on thread mode, when I try to use it in
> multythread nothing happens. it is a bug or limitation?
> could you help me ?
> thanks
> I have added the full class
> {code}
> private void scanFolderFiles(File scanDirectory) {
> File[] filesScan = scanDirectory.listFiles();
> if ( filesScan.length > 0 ) {
> int iterator=0;
> for (final File fileEntry : filesScan) {
>
> if (fileEntry.isDirectory()) {
> scanFolderFiles(fileEntry);
> } else {
> try {
> new PDFExtractThread(fileEntry).start();
> }
> catch (Exception e) {
> e.printStackTrace();
> }
> }
> iterator++;
> }
> }
> }
> ////////////////////////////////////////////////////////////////////////////////////////////
> package org.pdfextractor;
> import org.apache.pdfbox.pdmodel.PDDocument;
> import org.apache.pdfbox.text.PDFTextStripper;
> import java.io.*;
> /**
> * Created by dru on 21.11.2016.
> */
> class PDFExtractThread extends Thread {
> private String fileName;
> private File readFile;
> private PDDocument document;
> public PDFExtractThread(File readFile) {
> try {
> this.readFile = readFile;
> } catch (Exception e) {
> e.printStackTrace();
> System.exit(1);
> }
> }
> public void run() {
> try {
> //get FileName
> this.readFile.setWritable(true);
> this.document = PDDocument.load(this.readFile);
> this.fileName = (new
> String(this.readFile.getName()).toLowerCase().replace(".pdf", ""));
> pdfBoxExtractText();
> //Closing the document
> this.document.close();
> } catch (IOException e) {
> e.printStackTrace();
> } catch (Exception e) {
> e.printStackTrace();
> }
> }
> public void pdfBoxExtractText() throws Exception {
> //Retrieving text from PDF document
> PDFTextStripper pdfStripper = new PDFTextStripper();
> System.out.println(this.fileName);
> FileWriter fileWriter = new FileWriter(this.fileName+".txt");
> BufferedWriter writer = new BufferedWriter(fileWriter);
> String text = pdfStripper.getText(this.document);
> writer.write(text);
> writer.close();
> }
> }
> {code}
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