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diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/api/commons/DynamicSignatureProfileImpl.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/api/commons/DynamicSignatureProfileImpl.java
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+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/api/commons/DynamicSignatureProfileImpl.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.gv.egiz.pdfas.api.commons;
+
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Properties;
+
+import org.apache.commons.lang.StringUtils;
+
+import at.gv.egiz.pdfas.api.PdfAs;
+import at.knowcenter.wag.egov.egiz.cfg.PropertyTree;
+import at.knowcenter.wag.egov.egiz.cfg.SettingsReader;
+import at.knowcenter.wag.egov.egiz.sig.SignatureTypes;
+
+// TODO exception types?
+/**
+ * Implementation class of the {@link DynamicSignatureProfile}. Don't use this class directly. Use {@link PdfAs} to create and the 
+ * {@link DynamicSignatureProfile} interface for manipulation.
+ * @author exthex
+ *
+ */
+public class DynamicSignatureProfileImpl implements DynamicSignatureProfile {
+   private String name;   
+   private Properties newProps = new Properties();
+   private int dynamicTypeCounter = 0;   
+   private static Map profiles = new HashMap();
+   private static ThreadLocal localProfiles = new ThreadLocal();
+   private DynamicSignatureLifetimeEnum lifeMode; 
+   
+
+   private DynamicSignatureProfileImpl(DynamicSignatureLifetimeEnum mode, String name) {
+      if (name != null) {
+         this.name = name;
+      } else {
+         this.name = createDynamicTypeName();
+      }
+      this.lifeMode = mode;
+   }
+   
+   public static DynamicSignatureProfileImpl createFromParent(String myUniqueName, String parentProfile, DynamicSignatureLifetimeEnum mode) {
+      DynamicSignatureProfileImpl res = new DynamicSignatureProfileImpl(mode, myUniqueName);
+      res.initFromParent(parentProfile);
+      return res;
+   }
+   
+   private void store() {
+      if (lifeMode.equals(DynamicSignatureLifetimeEnum.MANUAL)) {
+         profiles.put(this.getName(), this);
+      } else if (lifeMode.equals(DynamicSignatureLifetimeEnum.AUTO)) {
+         localProfiles.set(this);
+      }
+   }
+   
+   private void remove() {
+      if (lifeMode.equals(DynamicSignatureLifetimeEnum.MANUAL)) {
+         profiles.remove(this);
+      } else if (lifeMode.equals(DynamicSignatureLifetimeEnum.AUTO)) {
+         localProfiles.set(null);
+      }
+   }
+   
+   public static void disposeLocalProfile() {
+      DynamicSignatureProfileImpl profile = (DynamicSignatureProfileImpl) localProfiles.get();
+      if (profile != null) {       
+         profile.dispose();
+      }
+   }
+   
+   public static DynamicSignatureProfileImpl createEmptyProfile(String myUniqueName, DynamicSignatureLifetimeEnum mode) {
+      return new DynamicSignatureProfileImpl(mode, myUniqueName);      
+   }
+   
+   public static DynamicSignatureProfileImpl loadProfile(String name) {
+      return (DynamicSignatureProfileImpl) profiles.get(name);
+   }
+   
+   private synchronized String createDynamicTypeName() {
+      return "dynprofile__#" + this.dynamicTypeCounter++;     
+   }
+
+   /* (non-Javadoc)
+    * @see at.gv.egiz.pdfas.api.commons.DynamicSignatureProfile#getName()
+    */
+   public String getName() {
+      return name;
+   }
+   
+   /* (non-Javadoc)
+    * @see at.gv.egiz.pdfas.api.commons.DynamicSignatureProfile#setName(String)
+    */
+   public void setName(String uniqueName) {
+      this.name = uniqueName;
+   }
+
+   public void setPropertyRaw(String key, String val) {
+      this.newProps.setProperty(localPropName(key), val);
+   }
+   
+   public String getPropertyRaw(String key) {
+      return this.newProps.getProperty(localPropName(key));
+   }
+   
+   private void assertPropExists(String key) {
+      if (!this.newProps.containsKey(localPropName(key))) {
+         throw new RuntimeException("property '" + key + "'not existing, cannot add one");
+      }
+   }
+
+   private String localPropName(String key) {
+      return "sig_obj." + this.name + "." + key;
+   }
+   
+   /* (non-Javadoc)
+    * @see at.gv.egiz.pdfas.api.commons.DynamicSignatureProfile#setFieldValue(java.lang.String, java.lang.String)
+    */
+   public void setFieldValue(String fieldName, String value) {
+      if (SignatureTypes.isRequredSigTypeKey(fieldName)) {
+         throw new RuntimeException("cannot set value for pre defined signature field names");
+      }
+      
+      String key = "value." +fieldName;
+      assertPropExists(key);
+      setPropertyRaw(key, value);
+   }
+   
+   /* (non-Javadoc)
+    * @see at.gv.egiz.pdfas.api.commons.DynamicSignatureProfile#getFieldValue(java.lang.String)
+    */
+   public String getFieldValue(String fieldName) {
+      return getPropertyRaw("value."+fieldName);           
+   }
+
+   private void initFromParent(String parentProfile) {
+      try {
+         SettingsReader cfg = null;
+
+         cfg = SettingsReader.getInstance();         
+
+         Properties props = cfg.getProperties();         
+         for (Enumeration e = props.keys(); e.hasMoreElements();) {
+            String oldKey = (String) e.nextElement();
+            if (oldKey.startsWith("sig_obj." + parentProfile + ".")) {
+               String newKey = StringUtils.replace(oldKey, parentProfile, name);
+               String val = props.getProperty(oldKey);
+               this.newProps.put(newKey, val);
+            }
+         }
+         this.newProps.put("sig_obj.types." + name, "on");         
+      } catch (Exception e) {
+         throw new RuntimeException(e);
+      }
+   }
+   
+   /* (non-Javadoc)
+    * @see at.gv.egiz.pdfas.api.commons.DynamicSignatureProfile#register()
+    */
+   public synchronized void apply() {
+      try {
+         SettingsReader settings = SettingsReader.getInstance();         
+
+         settings.getProperties().putAll(this.newProps);
+
+         for (Enumeration e = newProps.keys(); e.hasMoreElements();) {
+            String key = (String) e.nextElement();
+            settings.getPTree().setKeyValue(key, newProps.getProperty(key));
+         }
+     
+         SignatureTypes.getInstance().addSignatureType(this.name);
+         store();
+      } catch (Exception e) {
+         throw new RuntimeException(e);
+      }
+   }
+   
+   /* (non-Javadoc)
+    * @see at.gv.egiz.pdfas.api.commons.DynamicSignatureProfile#dispose()
+    */
+   public synchronized void dispose() {
+      try {
+         SettingsReader.getInstance().getProperties().keySet().removeAll(newProps.keySet());
+         
+         PropertyTree root = SettingsReader.getInstance().getPTree();
+         root.getSubTree("sig_obj").removeEntry(this.name);         
+         
+         SignatureTypes.getInstance().removeSignatureType(this.name);
+         remove();
+      } catch (Exception e) {
+         throw new RuntimeException(e);
+      }
+   }
+   
+}