pdf-as-lib maven project files moved to pdf-as-lib

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/pdf-as/trunk@926 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c

1 files changed, 0 insertions, 282 deletions

diff --git a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/TextualSignature.java b/src/main/java/at/knowcenter/wag/egov/egiz/pdf/TextualSignature.java
deleted file mode 100644
index 35a0768..0000000
--- a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/TextualSignature.java
+++ /dev/null
@@ -1,282 +0,0 @@
-/**

- * <copyright> Copyright 2006 by Know-Center, Graz, Austria </copyright>

- * PDF-AS has been contracted by the E-Government Innovation Center EGIZ, a

- * joint initiative of the Federal Chancellery Austria and Graz University of

- * Technology.

- *

- * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by

- * the European Commission - subsequent versions of the EUPL (the "Licence");

- * You may not use this work except in compliance with the Licence.

- * You may obtain a copy of the Licence at:

- * http://www.osor.eu/eupl/

- *

- * Unless required by applicable law or agreed to in writing, software

- * distributed under the Licence is distributed on an "AS IS" basis,

- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

- * See the Licence for the specific language governing permissions and

- * limitations under the Licence.

- *

- * This product combines work with different licenses. See the "NOTICE" text

- * file for details on the various modules and licenses.

- * The "NOTICE" text file is part of the distribution. Any derivative works

- * that you distribute must include a readable copy of the "NOTICE" text file.

- *

- * $Id: TextualSignature.java,v 1.4 2006/10/31 08:12:45 wprinz Exp $

- */

-package at.knowcenter.wag.egov.egiz.pdf;

-

-import java.io.ByteArrayInputStream;

-import java.io.ByteArrayOutputStream;

-import java.io.File;

-import java.io.IOException;

-

-import org.apache.log4j.Logger;

-import org.pdfbox.pdfparser.PDFParser;

-import org.pdfbox.pdmodel.PDDocument;

-import org.pdfbox.util.PDFTextStripper;

-

-import at.gv.egiz.pdfas.exceptions.ErrorCode;

-import at.gv.egiz.pdfas.framework.input.PdfDataSource;

-import at.gv.egiz.pdfas.performance.PerformanceCounters;

-import at.gv.egiz.pdfas.utils.PDFASUtils;

-import at.knowcenter.wag.egov.egiz.cfg.ConfigLogger;

-import at.knowcenter.wag.egov.egiz.cfg.SettingsReader;

-import at.knowcenter.wag.egov.egiz.exceptions.PDFDocumentException;

-

-import com.lowagie.text.Document;

-import com.lowagie.text.DocumentException;

-import com.lowagie.text.Rectangle;

-import com.lowagie.text.pdf.PdfContentByte;

-import com.lowagie.text.pdf.PdfImportedPage;

-import com.lowagie.text.pdf.PdfReader;

-import com.lowagie.text.pdf.PdfWriter;

-

-/**

- * Contains helper function for textual signatures.

- * 

- * @author wprinz

- */

-public class TextualSignature

-{

-  /**

-  * The logger definition.

-  */

-  private static final Logger logger_ = ConfigLogger.getLogger(TextualSignature.class);

-  

-  /**

-   * Extracts the document text from a given pdf.

-   * 

-   * @param pdf_stream

-   *          The pdf_input stream.

-   * @return Returns the extracted document text.

- * @throws PDFDocumentException 

-   * @throws TextExtractionException

-   *           Forwarded exception.

-   */

-  public static String extractTextTextual(PdfDataSource pdfDataSource, String encoding) throws PDFDocumentException 

-  {

-    PerformanceCounters.textExtractions.increment();

-    

-    try

-    {

-      int first_page_rotation = 0;

-      // logger_.debug("====================================================");

-      // logger_.debug("extractText:");

-

-      // For text extraction, create a temporary object with iText just as the

-      // one

-      // created

-      // when being signed, but of course without adding content.

-

-

-     // byte[] bytes = normalizePDF(pdf_stream);

-    	//iText  

-    	

-        byte [] pdf_data = pdfDataSource.getAsByteArray();

-        PdfReader reader = new PdfReader(pdf_data);

-        PDFASUtils.checkReaderPermissions(reader);

-        //pdf_stream.close();

-

-        // PERF: PDF normalization needs byte array - this is costy

-        ByteArrayOutputStream baos = new ByteArrayOutputStream(4096);

-

-        // For some reason the Reader -> ImportPage -> Writer mechanism produces

-        // problems en mass.

-        // The text extractor may not be able to extract proper text from

-        // documents

-        // created with

-        // this method (although it works when a Table is appended)... very

-        // fragile.

-

-        Document document = new Document();

-

-        PdfWriter writer = PdfWriter.getInstance(document, baos);

-        document.open();

-

-        PdfContentByte cb = writer.getDirectContent();

-        for (int page_num = 1; page_num <= reader.getNumberOfPages(); page_num++)

-        {

-          //Rectangle new_size = reader.getPageSize(page_num);

-          //logger_.info("PageSize with no rotaion: Pagenr:"+page_num+" Size: "+new_size);

-          //document.setPageSize(new_size);

-          Rectangle new_size_withrot =reader.getPageSizeWithRotation(page_num);

-          if (page_num == 1)

-          {

-        	//setFirstPageRotation(new_size_withrot.getRotation());

-        	first_page_rotation = new_size_withrot.getRotation();

-        	//logger_.info("iText first_page_rotation="+new_size_withrot.getRotation());

-          }

-          //logger_.info("iText set PageSize of page:"+page_num+" to: "+new_size_withrot); 

-          //document.setPageSize(new_size);

-          document.setPageSize(new_size_withrot);

-          document.newPage();

-

-          PdfImportedPage page = writer.getImportedPage(reader, page_num);

-          // note that this will add an xobject form to the doc.

-          // the xobject form contains the content of the page.

-          cb.addTemplate(page, 0, 0);

-

-          // wprinz: debugging

-          // cb.beginText();

-          // cb.setFontAndSize(BaseFont.createFont(BaseFont.HELVETICA,

-          // BaseFont.CP1252, BaseFont.NOT_EMBEDDED), 14);

-          // cb.showText("page " + page_num);

-          // cb.endText();

-          // wprinz: end debugging

-        }

-

-        document.close();

-

-        // for (int i = 1; i <= reader.getNumberOfPages(); i++)

-        // {

-        // Rectangle rect = reader.getBoxSize(i, "bleed");

-        // logger_.debug("rect[" + i + "] = " + rect);

-        // }

-

-        baos.close();

-        byte[] normalizedPDF = baos.toByteArray();

-

-      ByteArrayInputStream bais = new ByteArrayInputStream(normalizedPDF);

-      //PDFBox-parser

-      PDFParser parser = new PDFParser(bais);

-      File temporary_dir = SettingsReader.getTemporaryDirectory();

-      //logger_.info("temporary_dir="+temporary_dir.getAbsolutePath());

-      parser.setTempDirectory(temporary_dir);

-      parser.parse();

-      

-      PDDocument doc = parser.getPDDocument();

-      //System.out.println("pdfBox.getNumberOfPages()"+doc.getNumberOfPages());

-      

-      PDFTextStripper stripper = new PDFTextStripper();

-      stripper.setSortByPosition(false);

-      stripper.setGetFirstPageRotationFromThis(true);

-      stripper.setFirstPageRotation(first_page_rotation);

-      

-      // stripper.setStartPage(4);

-      // stripper.setEndPage(4);

-      logger_.debug("TextualSignator extractTextTextual: Begin stripping text");

-      String text;

-      try {

-    	  text = stripper.getText(doc, encoding);

-      } catch (Exception e) {

-    	  throw new PDFDocumentException(ErrorCode.TEXT_EXTRACTION_EXCEPTION, "Unable to extract textual content.", e);

-      }

-      logger_.debug("TextualSignator extractTextTextual: Stripping text ended");

-      

-      doc.close();

-      //logger_.debug("TextualSignator extractTextTextual="+text);

-      return text;

-

-    }

-    catch (IllegalArgumentException e)

-    {

-       throw new PDFDocumentException(ErrorCode.DOCUMENT_CANNOT_BE_READ, e);

-    }

-    catch (IOException e)

-    {

-      throw new PDFDocumentException(ErrorCode.DOCUMENT_CANNOT_BE_READ, e);

-    }

-    catch (DocumentException e)

-    {

-       throw new PDFDocumentException(ErrorCode.DOCUMENT_CANNOT_BE_READ, e);

-    }

-  }

-  

-  /**

-   * Normalizes a given binary PDF to a version PDFbox can handle correctly.

-   * 

-   * <p>

-   * PDFbox has serious problems with documents that use incremental updates or

-   * XObject forms. Therefor use this to remove incremental updates and create a

-   * streamlined document.

-   * </p>

-   * 

-   * <p>

-   * Note that this has nothing to do with text normalization. It just unifies

-   * the PDF documents that are fed into PDFbox for text extraction and page

-   * length determination.

-   * </p>

-   * 

-   * @param input_pdf

-   *          The input pdf to be normalized.

-   * @return Returns the normalized pdf.

-   * @throws IOException

-   * @throws DocumentException

- * @throws PDFDocumentException 

-   */

-  public static byte[] normalizePDF(PdfDataSource pdfDataSource) throws IOException, DocumentException, PDFDocumentException

-  {

-	  //iText

-    byte [] pdf_data = pdfDataSource.getAsByteArray();

-    PdfReader reader = new PdfReader(pdf_data);

-    PDFASUtils.checkReaderPermissions(reader);

-    //input_pdf.close();

-    

-    // PERF: PDF Normalization needs byte array

-    ByteArrayOutputStream baos = new ByteArrayOutputStream();

-    // For some reason the Reader -> ImportPage -> Writer mechanism produces

-    // problems en mass.

-    // The text extractor may not be able to extract proper text from

-    // documents

-    // created with

-    // this method (although it works when a Table is appended)... very

-    // fragile.

-

-    Document document = new Document();

-

-    PdfWriter writer = PdfWriter.getInstance(document, baos);

-    document.open();

-

-    PdfContentByte cb = writer.getDirectContent();

-    for (int page_num = 1; page_num <= reader.getNumberOfPages(); page_num++)

-    {

-      Rectangle new_size_withrot =reader.getPageSizeWithRotation(page_num);

-      document.setPageSize(new_size_withrot);

-      document.newPage();

-      PdfImportedPage page = writer.getImportedPage(reader, page_num);

-      // note that this will add an xobject form to the doc.

-      // the xobject form contains the content of the page.

-      cb.addTemplate(page, 0, 0);

-

-      // wprinz: debugging

-      // cb.beginText();

-      // cb.setFontAndSize(BaseFont.createFont(BaseFont.HELVETICA,

-      // BaseFont.CP1252, BaseFont.NOT_EMBEDDED), 14);

-      // cb.showText("page " + page_num);

-      // cb.endText();

-      // wprinz: end debugging

-    }

-

-    document.close();

-

-    // for (int i = 1; i <= reader.getNumberOfPages(); i++)

-    // {

-    // Rectangle rect = reader.getBoxSize(i, "bleed");

-    // logger_.debug("rect[" + i + "] = " + rect);

-    // }

-

-    baos.close();

-    byte[] normalizedPDF = baos.toByteArray();

-    return normalizedPDF;

-  }

-}