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PdfExtractorByRegion.java
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PdfExtractorByRegion.java
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/*
* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
* Click nbfs://nbhost/SystemFileSystem/Templates/Project/Maven2/JavaApp/src/main/java/${packagePath}/${mainClassName}.java to edit this template
*/
package net.clementlevallois.importers.import_pdf.controller;
//import com.itextpdf.kernel.pdf.PdfDocument;
//import com.itextpdf.kernel.pdf.PdfReader;
//import com.itextpdf.kernel.pdf.canvas.parser.PdfTextExtractor;
//import com.itextpdf.kernel.pdf.canvas.parser.listener.SimpleTextExtractionStrategy;
import java.awt.geom.Rectangle2D;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import java.util.logging.Level;
import java.util.logging.Logger;
import net.clementlevallois.importers.model.CellRecord;
import net.clementlevallois.importers.model.ColumnModel;
import net.clementlevallois.importers.model.SheetModel;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.text.PDFTextStripperByArea;
import org.jsoup.Jsoup;
import org.jsoup.safety.Safelist;
/**
*
* @author LEVALLOIS
*/
public class PdfExtractorByRegion {
public SheetModel extractTextFromRegionInPdf(InputStream is, String fileName, Boolean allPages, Integer selectedPage, Float topLeftX, Float topLeftY, Float width, Float height) {
Map<Integer, String> textPerPage = new TreeMap();
SheetModel sheetModel = new SheetModel();
sheetModel.setName(fileName);
try {
PDDocument doc = PDDocument.load(is);
int docPagesCount = doc.getPages().getCount();
if (!allPages && selectedPage > docPagesCount) {
CellRecord cellRecord = new CellRecord(0, 0, "selected page is higher than the count of pages in the doc");
sheetModel.addCellRecord(cellRecord);
return sheetModel;
}
if (allPages) {
int pageNumber;
int i = 0;
for (pageNumber = 0; pageNumber < docPagesCount; pageNumber++) {
PDPage docPage = doc.getPage(pageNumber);
PDFTextStripperByArea textStripper = new PDFTextStripperByArea();
float heightPage = docPage.getMediaBox().getHeight();
float widthPage = docPage.getMediaBox().getWidth();
Rectangle2D rect = new Rectangle2D.Float(topLeftX * widthPage, topLeftY * heightPage, width * widthPage, height * heightPage);
textStripper.addRegion("region", rect);
textStripper.extractRegions(docPage);
String textForRegion = textStripper.getTextForRegion("region");
String linesArray[] = textForRegion.split("\\r?\\n");
String text = Utils.fixHyphenatedWordsAndReturnAllLinesInOnePara(linesArray);
text = Jsoup.clean(text, Safelist.basicWithImages().addAttributes("span", "style"));
textPerPage.put(pageNumber, text);
}
} else {
PDPage docPage = doc.getPage(selectedPage);
PDFTextStripperByArea textStripper = new PDFTextStripperByArea();
float heightPage = docPage.getMediaBox().getHeight();
float widthPage = docPage.getMediaBox().getWidth();
Rectangle2D rect = new Rectangle2D.Float(topLeftX * widthPage, topLeftY * heightPage, width * widthPage, height * heightPage);
textStripper.addRegion("region", rect);
textStripper.extractRegions(docPage);
String textForRegion = textStripper.getTextForRegion("region");
textForRegion = Jsoup.clean(textForRegion, Safelist.basicWithImages().addAttributes("span", "style"));
String linesArray[] = textForRegion.split("\\r?\\n");
String text = Utils.fixHyphenatedWordsAndReturnAllLinesInOnePara(linesArray);
text = Jsoup.clean(text, Safelist.basicWithImages().addAttributes("span", "style"));
textPerPage.put(selectedPage, text);
}
doc.close();
ColumnModel cm;
cm = new ColumnModel("0", textPerPage.get(0));
List<ColumnModel> headerNames = new ArrayList();
headerNames.add(cm);
sheetModel.setTableHeaderNames(headerNames);
for (Map.Entry<Integer, String> line : textPerPage.entrySet()) {
CellRecord cellRecord = new CellRecord(line.getKey(), 0, line.getValue());
sheetModel.addCellRecord(cellRecord);
}
} catch (IOException ex) {
Logger.getLogger(PdfExtractorByRegion.class.getName()).log(Level.SEVERE, null, ex);
}
return sheetModel;
}
}