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
---
 .../wag/egov/egiz/pdf/BinarySignatureHolder.java   | 146 +++++++++++++++++++++
 1 file changed, 146 insertions(+)
 create mode 100644 src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignatureHolder.java

(limited to 'src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignatureHolder.java')

diff --git a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignatureHolder.java b/src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignatureHolder.java
new file mode 100644
index 0000000..1f522ff
--- /dev/null
+++ b/src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignatureHolder.java
@@ -0,0 +1,146 @@
+/**
+ * <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: BinarySignatureHolder.java,v 1.1 2006/10/11 07:58:28 wprinz Exp $
+ */
+package at.knowcenter.wag.egov.egiz.pdf;
+
+import java.io.Serializable;
+
+import at.knowcenter.wag.egov.egiz.sig.SignatureObject;
+
+/**
+ * Data structure that holds the information of one binary signature block,
+ * which is the signed/signable pdf and the corresponding SignatureObject.
+ * 
+ * <p>
+ * The actual signed text is computed by Base64 encoding the binary data when
+ * first requested.
+ * </p>
+ * <p>
+ * The corresponding getters can be used to retrieve the signed document (e.g.
+ * for displaying a preview).
+ * </p>
+ * 
+ * @author wprinz
+ */
+public class BinarySignatureHolder implements Serializable, SignatureHolder
+{
+
+  /**
+   * SVUID.
+   */
+  private static final long serialVersionUID = -7208103904479272760L;
+
+  /**
+   * The whole pdf this holder was extracted from.
+   */
+  private byte[] signed_pdf = null;
+
+  /**
+   * The number of bytes that give the signed document.
+   */
+  private int signed_pdf_length = -1;
+
+  /**
+   * The signed text of this object.
+   * 
+   * <p>
+   * This is the value that will be signed by the Connector.
+   * </p>
+   */
+  private String signed_text = null;
+
+  /**
+   * The signature object.
+   */
+  private SignatureObject signature_object = null;
+
+  /**
+   * Constructor that takes the pdf and the SignatureObject as parameters.
+   * 
+   * @param pdf
+   *          The pdf data.
+   * @param length
+   *          The length (number of bytes) of the pdf data to be used for being
+   *          converted into "signed text".
+   * @param so
+   *          The signed signature object.
+   */
+  public BinarySignatureHolder(final byte[] pdf, final int length, SignatureObject so)
+  {
+    this.signed_pdf = pdf;
+    this.signed_pdf_length = length;
+    this.signature_object = so;
+
+    this.signed_text = null;
+  }
+
+  /**
+   * @see at.knowcenter.wag.egov.egiz.pdf.SignatureHolder#getSignedText()
+   */
+  public String getSignedText()
+  {
+    if (this.signed_text == null)
+    {
+      computeSignedText();
+    }
+    return this.signed_text;
+  }
+
+  /**
+   * @see at.knowcenter.wag.egov.egiz.pdf.SignatureHolder#getSignatureObject()
+   */
+  public SignatureObject getSignatureObject()
+  {
+    return this.signature_object;
+  }
+
+  /**
+   * Computes or recomputes the signed text from the underlying binary data.
+   * 
+   * <p>
+   * This usually encodes the binary data of given length in Base64.
+   * </p>
+   * 
+   * <p>
+   * This is usually called automatically when the signed text is first
+   * requested.
+   * </p>
+   */
+  protected void computeSignedText()
+  {
+    this.signed_text = BinarySignature.retrieveSignableTextFromData(this.signed_pdf, this.signed_pdf_length);
+  }
+
+  /**
+   * Returns the signed_pdf.
+   * @return Returns the signed_pdf.
+   */
+  public byte[] getSignedPdf()
+  {
+    return this.signed_pdf;
+  }
+
+  /**
+   * Returns the signed_pdf_length.
+   * @return Returns the signed_pdf_length.
+   */
+  public int getSignedPdfLength()
+  {
+    return this.signed_pdf_length;
+  }
+
+}
-- 
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