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, 233 deletions

diff --git a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/ObjectExtractor.java b/src/main/java/at/knowcenter/wag/egov/egiz/pdf/ObjectExtractor.java
deleted file mode 100644
index eb7377a..0000000
--- a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/ObjectExtractor.java
+++ /dev/null
@@ -1,233 +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.

- */

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

-

-import java.io.IOException;

-import java.util.ArrayList;

-import java.util.Iterator;

-import java.util.List;

-import java.util.Map;

-

-import org.apache.log4j.Logger;

-import org.apache.pdfbox.cos.COSDictionary;

-import org.apache.pdfbox.cos.COSName;

-import org.apache.pdfbox.pdmodel.PDDocument;

-import org.apache.pdfbox.pdmodel.PDPage;

-import org.apache.pdfbox.pdmodel.PDResources;

-import org.apache.pdfbox.pdmodel.graphics.xobject.PDXObjectImage;

-import org.apache.pdfbox.pdmodel.interactive.annotation.PDAnnotation;

-

-import at.gv.egiz.pdfas.api.analyze.NonTextObjectInfo;

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

-

-/**

- * Method for object extraction from pdf documents.

- * This uses pdf-box 0.8.0, not 0.7.2. Packages org.apache.pdfbox instead org.pdfbox!

- * @author dferbas

- *

- */

-public class ObjectExtractor {

-   private static Logger log = Logger.getLogger(ObjectExtractor.class);

-   

-   /*

-    * If set <code>true</code> signature annotations are not extracted otherwise

-    * all signatures except PDF-AS signatures are extracted.

-    */

-   private final static boolean SKIP_NON_PDFAS_SIGNATURES = false;

-

-   /**

-    * Find annotation objects in pdf documents

-    * @param objectInfos

-    * @param pageNr

-    * @param page

-    */

-   private static void doExtractAnnotations(List objectInfos, int pageNr, PDPage page) {

-        List annotations; 

-        try {

-           annotations = page.getAnnotations();

-        } catch (IOException e) {

-           log.error("Error extracting annotations from pdf. No NonTextObjectInfo-annotations available.", e);

-           return;

-        }

-        for (Iterator it = annotations.iterator(); it.hasNext();) {

-           try {              

-              PDAnnotation anno = (PDAnnotation) it.next();

-              log.debug("found annotation: " +anno);

-              if (log.isTraceEnabled()) {

-                 log.trace("annotation def: " + dictToString(anno.getDictionary()));

-              }

-              String ft = anno.getDictionary().getNameAsString("FT");

-              if (ft != null && ft.equals("Sig")) {  // skip signature widgets

-                 if (SKIP_NON_PDFAS_SIGNATURES) {

-                    log.debug("found signature widged, skip extraction");

-                    continue;

-                 } else {

-                    COSDictionary sigDict = (COSDictionary) anno.getDictionary().getDictionaryObject("V");

-                    if (sigDict != null && AdobeSignatureHelper.ADOBE_SIG_FILTER.equals(sigDict.getNameAsString("Filter"))) {

-                       log.debug("found PDF-AS signature widged, skip extraction");

-                       continue;

-                    }

-                 }

-              }

-

-              NonTextObjectInfo objInfo = new NonTextObjectInfo();

-              objInfo.setName(anno.getDictionary().getString( "NM" ));

-              objInfo.setObjectType(NonTextObjectInfo.TYPE_ANNOTATION);

-

-              String subtype = anno.getDictionary().getNameAsString("Subtype");

-              String subj = anno.getDictionary().getString("Subj");

-              if (subj != null) {

-                subtype+= "/" + subj; 

-              }

-              objInfo.setSubType(subtype);

-              

-              objInfo.setPageNr(pageNr);

-              objInfo.setHeight(anno.getRectangle().getHeight());

-              objInfo.setWidth(anno.getRectangle().getWidth());

-              objectInfos.add(objInfo);              

-           } catch (Exception ex) {

-              log.info("error reading non text object info key " + ex);

-           }

-        }   

-     }

-   

-   /**

-    * Create string representation from COSDictionary

-    * @param dict

-    * @return

-    */

-   public static String dictToString(COSDictionary dict)

-   {

-       try {

-         String retVal = "COSDictionary{";

-          for (int i = 0; i<dict.size(); i++)

-          {

-              COSName key = (COSName)dict.keyList().get(i);           

-              retVal = retVal + "(" + key + ":" + dict.getItem(key) + ") ";

-          }

-          retVal = retVal + "}";

-          return retVal;

-      } catch (Exception e) {

-         return "no detail available";

-      }

-   }

-

-   /**

-    * Find resources (images) in pdf documents

-    * @param objectInfos

-    * @param pageNr

-    * @param page

-    */

-   private static void doExtractFromResources(List objectInfos, int pageNr, PDPage page) {

-        PDResources resources = page.getResources();

-    

-        Map images;

-        try {

-           images = resources.getImages();

-        } catch (IOException e) {

-           log.error("Error extracting images from pdf. No NonTextObjectInfo-Images available.", e);

-           return;

-        }

-        if (images != null) {

-           Iterator imageIter = images.keySet().iterator();

-           while (imageIter.hasNext()) {

-              NonTextObjectInfo objInfo = new NonTextObjectInfo();

-              String key = (String) imageIter.next();

-              PDXObjectImage image = (PDXObjectImage) images.get(key);

-              

-              objInfo.setHeight(image.getHeight());

-              objInfo.setWidth(image.getWidth());

-              objInfo.setName(key + image.getSuffix());

-              objInfo.setObjectType(NonTextObjectInfo.TYPE_IMAGE);

-              objInfo.setPageNr(pageNr);

-              objectInfos.add(objInfo);

-              objInfo.setSubType(image.getSuffix());

-              

-              if (log.isDebugEnabled()) {

-                 log.debug("Found non text object: " + objInfo.toString());

-              }

-           }

-        }     

-     }

-

-   /**

-      * Extract non textual data from pdf. 

-      * 

-      * @see org.pdfbox.ExtractImages

-      * 

-      * @param document

-      * @return List of {@link NonTextObjectInfo}

-      */

-     public static List extractNonTextInfo(PDDocument document) {         

-        // extraction does not work with the normalized pdf from extractTextTextual

-        log.debug("going to extract non text objects");

-        List objectInfos = new ArrayList();

-        List pages = document.getDocumentCatalog().getAllPages();

-        Iterator iter = pages.iterator();

-        int pageNr = 0;

-        while (iter.hasNext()) {

-           pageNr++;

-           PDPage page = (PDPage) iter.next();

-           doExtractFromResources(objectInfos, pageNr, page);

-           doExtractAnnotations(objectInfos, pageNr, page); // does not work with pdf-box 0.7.2 -> 0.8.0 needed

-        }

-        if (log.isDebugEnabled()) {

-           log.debug("extracted non textual objects count: " + objectInfos.size());

-        }

-        return objectInfos;

-   

-     }

-

-   /**

-      * Extract non textual data from pdf. 

-    * @param pdfDataSource 

-      * 

-      * @see org.pdfbox.ExtractImages

-      * 

-      * @return List of {@link NonTextObjectInfo}

-      */

-      public static List extractNonTextInfo(PdfDataSource pdfDataSource) {

-   

-         PDDocument doc = null;

-         try {

-            doc = PDDocument.load(pdfDataSource.createInputStream());

-            List res = extractNonTextInfo(doc);

-            doc.close();

-            return res;

-         } catch (IOException e) {

-            log.error("Error extracting images from pdf. No NonTextObjectInfo available.", e);

-            return new ArrayList();

-         } finally {

-            if (doc != null) {

-               try {

-                  doc.close();

-               } catch (IOException e) {

-                  log.error("error closing pddocument", e);

-               }            

-            }

-         }

-         

-      }

-

-}