1 files changed, 92 insertions, 96 deletions
diff --git a/utils/src/main/java/at/gv/egiz/idlink/IdentityLinkTransformer.java b/utils/src/main/java/at/gv/egiz/idlink/IdentityLinkTransformer.java
index 8bee5fa4..a5b97a87 100644
--- a/utils/src/main/java/at/gv/egiz/idlink/IdentityLinkTransformer.java
+++ b/utils/src/main/java/at/gv/egiz/idlink/IdentityLinkTransformer.java
@@ -14,11 +14,12 @@
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
-package at.gv.egiz.idlink;
-
+package at.gv.egiz.idlink;
+
 import java.io.IOException;
 import java.net.MalformedURLException;
 import java.net.URL;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -28,11 +29,12 @@ import javax.xml.transform.Templates;
 import javax.xml.transform.Transformer;
 import javax.xml.transform.TransformerConfigurationException;
 import javax.xml.transform.TransformerException;
+import javax.xml.transform.TransformerFactory;
 import javax.xml.transform.sax.SAXTransformerFactory;
 import javax.xml.transform.stream.StreamSource;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 import org.w3c.dom.Node;
@@ -41,99 +43,94 @@ import org.w3c.dom.Text;
 
 import at.gv.egiz.bku.utils.urldereferencer.StreamData;
 import at.gv.egiz.bku.utils.urldereferencer.URLDereferencer;
-
+
 public class IdentityLinkTransformer {
   
-  protected static Log log = LogFactory.getLog(IdentityLinkTransformer.class);
-
-  /**
-   * The transformer factory.
-   */
-  private static SAXTransformerFactory factory;
-
-  /**
-   * The instance to be returned by {@link #getInstance()}.
-   */
-  private static IdentityLinkTransformer instance;
-  
-  /**
-   * Returns an instance of this <code>IdentityLinkTransfomer</code>.
-   * 
-   * @return an instance of this <code>IdentityLinkTransformer</code>
-   */
-  public static IdentityLinkTransformer getInstance() {
-    if (instance == null) {
-      instance = new IdentityLinkTransformer();
-      factory = (SAXTransformerFactory) SAXTransformerFactory.newInstance();
-    }
-    return instance;
-  }
-
-  /**
-   * Sets the given <code>domainIdentifier</code> on the corresponding
-   * node of the given <code>idLink</code>.
-   * <p>This method may be used to cope with a flaw in the IssuerTemplate-Stylesheets
-   * used to transform a <code>CompressedIdentitiyLink</code> into an
-   * <code>IdentityLink</code>. Some IssuerTemplate-Stylesheets do not
-   * consider the <code>pr:Type</code> element value of the 
-   * <code>CompressedIdentityLink</code> and render a <code>pr:Type</code> 
-   * element value of <code>urn:publicid:gv.at:baseid</code>
-   * into the <code>IdentityLink</code> structure. This method allows to
-   * set the <code>pr:Type</code> element value on the given <code>idLink</code>
-   * after the transformation.
-   * </p>
-   * 
-   * @param idLink the <code>IdentityLink</code> element or one of it's ancestors.
-   * Must not be <code>null</code>.
-   * 
-   * @param domainIdentifier the value to be set for the <code>pr:Type</code> element
-   * 
-   * @throws NullPointerException if <code>idLink</code> is <code>null</code>.
-   */
-  public static void setDomainIdentifier(Node idLink, String domainIdentifier) {
-    
-    Element element;
-    if (idLink instanceof Element) {
-      element = (Element) idLink;
-    } else if (idLink instanceof Document) {
-      element = ((Document) idLink).getDocumentElement();
-    } else if (idLink != null) {
-      Document document = idLink.getOwnerDocument();
-      element = document.getDocumentElement();
-    } else {
-      throw new NullPointerException("Parameter 'idLink' must no be null.");
-    }
-    
-    NodeList nodeList = element.getElementsByTagNameNS(
-        "http://reference.e-government.gv.at/namespace/persondata/20020228#",
-        "Type");
-
-    for (int i = 0; i < nodeList.getLength(); i++) {
-      if (nodeList.item(i) instanceof Element) {
-        Element typeElement = (Element) nodeList.item(i);
-        NodeList children = typeElement.getChildNodes();
-        for (int j = 0; j < children.getLength(); j++) {
-          if (children.item(j) instanceof Text) {
-            ((Text) children.item(j)).setNodeValue(domainIdentifier);
-          }
-        }
-      }
-    }
-    
-  }
-  
+  private final Logger log = LoggerFactory.getLogger(IdentityLinkTransformer.class);
+
   /**
-   * Mapping of issuer template URIs to transformation templates.
+   * The transformer factory.
+   */
+  private TransformerFactory factory = SAXTransformerFactory.newInstance();
+
+  /**
+   * The URLDereferencer used to dereference style-sheet URLs.
+   */
+  private URLDereferencer urlDereferencer;
+  
+  /**
+   * @return the urlDereferencer
+   */
+  public URLDereferencer getUrlDereferencer() {
+    return urlDereferencer;
+  }
+
+  /**
+   * @param urlDereferencer the urlDereferencer to set
    */
-  private Map<String, Templates> templates = new HashMap<String, Templates>();
-  
-  /**
-   * Private constructor.
-   */
-  private IdentityLinkTransformer() {
+  public void setUrlDereferencer(URLDereferencer urlDereferencer) {
+    this.urlDereferencer = urlDereferencer;
   }
 
   /**
+   * Sets the given <code>domainIdentifier</code> on the corresponding
+   * node of the given <code>idLink</code>.
+   * <p>This method may be used to cope with a flaw in the IssuerTemplate-Stylesheets
+   * used to transform a <code>CompressedIdentitiyLink</code> into an
+   * <code>IdentityLink</code>. Some IssuerTemplate-Stylesheets do not
+   * consider the <code>pr:Type</code> element value of the 
+   * <code>CompressedIdentityLink</code> and render a <code>pr:Type</code> 
+   * element value of <code>urn:publicid:gv.at:baseid</code>
+   * into the <code>IdentityLink</code> structure. This method allows to
+   * set the <code>pr:Type</code> element value on the given <code>idLink</code>
+   * after the transformation.
+   * </p>
+   * 
+   * @param idLink the <code>IdentityLink</code> element or one of it's ancestors.
+   * Must not be <code>null</code>.
+   * 
+   * @param domainIdentifier the value to be set for the <code>pr:Type</code> element
+   * 
+   * @throws NullPointerException if <code>idLink</code> is <code>null</code>.
+   */
+  public static void setDomainIdentifier(Node idLink, String domainIdentifier) {
+    
+    Element element;
+    if (idLink instanceof Element) {
+      element = (Element) idLink;
+    } else if (idLink instanceof Document) {
+      element = ((Document) idLink).getDocumentElement();
+    } else if (idLink != null) {
+      Document document = idLink.getOwnerDocument();
+      element = document.getDocumentElement();
+    } else {
+      throw new NullPointerException("Parameter 'idLink' must no be null.");
+    }
+    
+    NodeList nodeList = element.getElementsByTagNameNS(
+        "http://reference.e-government.gv.at/namespace/persondata/20020228#",
+        "Type");
+
+    for (int i = 0; i < nodeList.getLength(); i++) {
+      if (nodeList.item(i) instanceof Element) {
+        Element typeElement = (Element) nodeList.item(i);
+        NodeList children = typeElement.getChildNodes();
+        for (int j = 0; j < children.getLength(); j++) {
+          if (children.item(j) instanceof Text) {
+            ((Text) children.item(j)).setNodeValue(domainIdentifier);
+          }
+        }
+      }
+    }
+    
+  }
+  
+  /**
+   * Mapping of issuer template URIs to transformation templates.
+   */
+  private Map<String, Templates> templates = Collections.synchronizedMap(new HashMap<String, Templates>());
+  
+  /**
    * Transforms an identity link <code>source</code> to <code>result</code> with
    * the given issuer template from the <code>stylesheetURL</code>.
    * 
@@ -154,7 +151,7 @@ public class IdentityLinkTransformer {
    *           stylesheet fails.
    * @throws TransformerException
    *           if transforming the identity link fails.
-   */
+   */
   public void transformIdLink(String stylesheetURL, Source source, Result result) throws IOException, TransformerException {
 
     Templates templ = templates.get(stylesheetURL);
@@ -168,8 +165,7 @@ public class IdentityLinkTransformer {
         throw new MalformedURLException("Protocol " + url.getProtocol() + " not supported for IssuerTemplate URL.");
       }
       
-      URLDereferencer dereferencer = URLDereferencer.getInstance();
-      StreamData data = dereferencer.dereference(url.toExternalForm(), null);
+      StreamData data = urlDereferencer.dereference(url.toExternalForm());
       
       log.trace("Trying to create issuer template.");
       templ = factory.newTemplates(new StreamSource(data.getStream()));
@@ -183,6 +179,6 @@ public class IdentityLinkTransformer {
     
     transformer.transform(source, result);
     
-  }
-  
-}
+  }
+  
+}