From 6025b6016517c6d898d8957d1d7e03ba71431912 Mon Sep 17 00:00:00 2001
From: tknall <tknall@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c>
Date: Fri, 1 Dec 2006 12:20:24 +0000
Subject: Initial import of release 2.2.

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@4 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c
---
 .../verificators/TextualVerificator_1_0_0.java     | 136 +++++++++++++++++++++
 1 file changed, 136 insertions(+)
 create mode 100644 src/main/java/at/knowcenter/wag/egov/egiz/framework/verificators/TextualVerificator_1_0_0.java

(limited to 'src/main/java/at/knowcenter/wag/egov/egiz/framework/verificators/TextualVerificator_1_0_0.java')

diff --git a/src/main/java/at/knowcenter/wag/egov/egiz/framework/verificators/TextualVerificator_1_0_0.java b/src/main/java/at/knowcenter/wag/egov/egiz/framework/verificators/TextualVerificator_1_0_0.java
new file mode 100644
index 0000000..bbcebef
--- /dev/null
+++ b/src/main/java/at/knowcenter/wag/egov/egiz/framework/verificators/TextualVerificator_1_0_0.java
@@ -0,0 +1,136 @@
+/**
+ * <copyright> Copyright (c) 2006 by Know-Center, Graz, Austria </copyright>
+ * 
+ * This software is the confidential and proprietary information of Know-Center,
+ * Graz, Austria. You shall not disclose such Confidential Information and shall
+ * use it only in accordance with the terms of the license agreement you entered
+ * into with Know-Center.
+ * 
+ * KNOW-CENTER MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
+ * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
+ * NON-INFRINGEMENT. KNOW-CENTER SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY
+ * LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
+ * DERIVATIVES.
+ * 
+ * $Id: TextualVerificator_1_0_0.java,v 1.4 2006/10/31 08:08:00 wprinz Exp $
+ */
+package at.knowcenter.wag.egov.egiz.framework.verificators;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.log4j.Logger;
+
+import at.knowcenter.wag.egov.egiz.PdfAS;
+import at.knowcenter.wag.egov.egiz.PdfASID;
+import at.knowcenter.wag.egov.egiz.cfg.ConfigLogger;
+import at.knowcenter.wag.egov.egiz.exceptions.PresentableException;
+import at.knowcenter.wag.egov.egiz.framework.SignatorFactory;
+import at.knowcenter.wag.egov.egiz.framework.Verificator;
+import at.knowcenter.wag.egov.egiz.pdf.AbsoluteTextSignature;
+import at.knowcenter.wag.egov.egiz.pdf.SignatureHolder;
+import at.knowcenter.wag.exactparser.parsing.results.FooterParseResult;
+
+
+/**
+ * The textual verificator.
+ * 
+ * <p>
+ * All holders of the document so far including the block itself are extracted.
+ * If at least one has been found it is checked that this one doesn't belong to
+ * a previous block.
+ * </p>
+ * <p>
+ * Note that the KZ is not explicitely checked here, so this algorithm will find
+ * all blocks.
+ * </p>
+ * <p>
+ * Note that it will not find old style blocks as they don't have the SIG_KZ.
+ * </p>
+ * 
+ * @author wprinz
+ */
+public class TextualVerificator_1_0_0 implements Verificator
+{
+  /**
+   * The Pdf-AS ID of this Verificator.
+   */
+  public static final PdfASID MY_ID = new PdfASID(SignatorFactory.VENDOR, SignatorFactory.TYPE_TEXTUAL, SignatorFactory.VERSION_1_0_0);
+
+  /**
+   * The logger definition.
+   */
+  private static final Logger logger_ = ConfigLogger.getLogger(TextualVerificator_1_0_0.class);
+
+  /**
+   * Default constructor.
+   */
+  public TextualVerificator_1_0_0()
+  {
+    // Default constructor.
+  }
+
+  /**
+   * @see at.knowcenter.wag.egov.egiz.framework.Verificator#parseBlock(byte[],
+   *      at.knowcenter.wag.exactparser.parsing.results.FooterParseResult, int)
+   */
+  public List parseBlock(byte[] pdf, FooterParseResult block,
+      int start_of_whole_block) throws PresentableException
+  {
+    String block_text = PdfAS.extractNormalizedTextTextual(pdf, block.next_index);
+
+    logger_.debug("Scanning block:");
+    //List signature_holders = PdfAS.extractSignatureHoldersTextual(block_text, false);
+    List signature_holders = AbsoluteTextSignature.extractSignatureHoldersFromText(block_text);
+    logger_.debug(": end of Scanning block");
+
+    // logger_.debug("signature_holders = " + signature_holders.size());
+
+    if (signature_holders.isEmpty())
+    {
+      return signature_holders;
+    }
+
+    List text_holder_candidates = null;
+    if (start_of_whole_block > 0)
+    {
+      text_holder_candidates = new ArrayList();
+      
+      String prev_text = PdfAS.extractNormalizedTextTextual(pdf, start_of_whole_block);
+
+      logger_.debug("Scanning prev block:");
+      //List prev_signature_holders = PdfAS.extractSignatureHoldersTextual(prev_text, false);
+      List prev_signature_holders = AbsoluteTextSignature.extractSignatureHoldersFromText(prev_text);
+      logger_.debug(": end of Scanning prev block");
+
+      // logger_.debug("prev_signature_holders = " +
+      // prev_signature_holders.size());
+
+      for (int i = prev_signature_holders.size(); i < signature_holders.size(); i++)
+      {
+        SignatureHolder holder = (SignatureHolder) signature_holders.get(i);
+        text_holder_candidates.add(holder);
+      }
+    }
+    else
+    {
+      logger_.debug("there is no prev - so all found signatures are possible candidates.");
+      text_holder_candidates = signature_holders;
+    }
+
+    List text_holders = new ArrayList();
+    for (int i = 0; i < text_holder_candidates.size(); i++)
+    {
+      SignatureHolder holder = (SignatureHolder) text_holder_candidates.get(i);
+      if (!holder.getSignatureObject().isTextual())
+      {
+        logger_.debug("Skipping found signature block because it's not textual.");
+        continue;
+      }
+      text_holders.add(holder);
+    }
+
+    return text_holders;
+  }
+}
-- 
cgit v1.2.3