From f2ab6263e22b06f9aee4caeb2f5ebadf8dc5076c Mon Sep 17 00:00:00 2001
From: ferbas <ferbas@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c>
Date: Tue, 5 Jan 2010 14:43:10 +0000
Subject: narrow sig skipping to Adobe.PDF-AS filter added debugging

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@535 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c
---
 .../wag/egov/egiz/pdf/ObjectExtractor.java         | 33 ++++++++++++++++++++--
 1 file changed, 31 insertions(+), 2 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
index ecee0dd..cd6d449 100644
--- a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/ObjectExtractor.java
+++ b/src/main/java/at/knowcenter/wag/egov/egiz/pdf/ObjectExtractor.java
@@ -7,6 +7,8 @@ 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;
@@ -43,10 +45,16 @@ public class ObjectExtractor {
            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
-                 log.debug("found signature widged, skip further extraction");
-                 break;
+                 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 further extraction");
+                    continue;
+                 }
               }             
               NonTextObjectInfo objInfo = new NonTextObjectInfo();
               objInfo.setName(anno.getDictionary().getString( "NM" ));
@@ -68,6 +76,27 @@ public class ObjectExtractor {
            }
         }   
      }
+   
+   /**
+    * 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
-- 
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