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diff --git a/pdf-as-lib/src/main/java/at/knowcenter/wag/egov/egiz/sig/SignatureDataImpl.java b/pdf-as-lib/src/main/java/at/knowcenter/wag/egov/egiz/sig/SignatureDataImpl.java
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+/**
+ * <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.sig;
+
+import java.io.Serializable;
+
+import at.gv.egiz.pdfas.framework.input.DataSource;
+
+/**
+ * Generic implementation of the SignatureData interface for being used by
+ * signators and verificators.
+ * 
+ * @author wprinz
+ */
+public class SignatureDataImpl implements SignatureData, Serializable
+{
+  /**
+   * SVUID.
+   */
+  private static final long serialVersionUID = -8652845539968684408L;
+
+  /**
+   * The signature data.
+   */
+  protected DataSource data = null;
+  
+  /**
+   * The mime type of the data.
+   */
+  protected String mimeType = null;
+
+  /**
+   * The character encoding of the data if appropriate, or null if not.
+   */
+  protected String characterEncoding = null;
+
+  /**
+   * Constructor that fills the SignatureData.
+   * 
+   * <p>
+   * The charactor encoding is set to null, so this constructor is primarily for
+   * signature data that has no character encoding (e.g. binary data).
+   * </p>
+   * 
+   * @param data
+   *          The signature data.
+   * @param mime_type
+   *          The mime type of the data.
+   */
+  public SignatureDataImpl(DataSource data, String mime_type)
+  {
+    this.data = data;
+    this.mimeType = mime_type;
+    this.characterEncoding = null;
+  }
+
+//  /**
+//   * Constructor that fills the SignatureData.
+//   * 
+//   * <p>
+//   * Use this constructor for textual data as it allows to provide the character
+//   * encoding.
+//   * </p>
+//   * 
+//   * @param data
+//   *          The signature data.
+//   * @param mime_type
+//   *          The mime type of the data.
+//   * @param character_encoding
+//   *          The character encoding of the data if appropriate, or null if not.
+//   */
+//  public SignatureDataImpl(byte[] data, String mime_type, String character_encoding)
+//  {
+//    this.data = data;
+//    this.mimeType = mime_type;
+//    this.characterEncoding = character_encoding;
+//  }
+  public SignatureDataImpl(DataSource data, String mime_type, String character_encoding)
+  {
+    this.data = data;
+    this.mimeType = mime_type;
+    this.characterEncoding = character_encoding;
+  }
+  
+  /**
+   * @see at.knowcenter.wag.egov.egiz.sig.SignatureData#getDataSource()
+   */
+  public DataSource getDataSource()
+  {
+    return this.data;
+  }
+  
+  
+  /**
+   * @see at.knowcenter.wag.egov.egiz.sig.SignatureData#getMimeType()
+   */
+  public String getMimeType()
+  {
+    return this.mimeType;
+  }
+
+  /**
+   * @see at.knowcenter.wag.egov.egiz.sig.SignatureData#getCharacterEncoding()
+   */
+  public String getCharacterEncoding()
+  {
+    return this.characterEncoding;
+  }
+}