From eeeb95e7a62ec2cd3e8a483ce080586763c5f094 Mon Sep 17 00:00:00 2001
From: gregor <gregor@d688527b-c9ab-4aba-bd8d-4036d912da1d>
Date: Thu, 20 Nov 2003 22:51:28 +0000
Subject: =?UTF-8?q?Erstversion=20lauff=C3=A4hig?=
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git-svn-id: https://joinup.ec.europa.eu/svn/moa-idspss/trunk@60 d688527b-c9ab-4aba-bd8d-4036d912da1d
---
 .../moa/spss/slinterface/transformers/Utils.java   | 129 +++++++++++++++++++++
 1 file changed, 129 insertions(+)
 create mode 100644 spss.slinterface/WEB-INF/src/at/gv/egovernment/moa/spss/slinterface/transformers/Utils.java

(limited to 'spss.slinterface/WEB-INF/src/at/gv/egovernment/moa/spss/slinterface/transformers/Utils.java')

diff --git a/spss.slinterface/WEB-INF/src/at/gv/egovernment/moa/spss/slinterface/transformers/Utils.java b/spss.slinterface/WEB-INF/src/at/gv/egovernment/moa/spss/slinterface/transformers/Utils.java
new file mode 100644
index 000000000..d03895efe
--- /dev/null
+++ b/spss.slinterface/WEB-INF/src/at/gv/egovernment/moa/spss/slinterface/transformers/Utils.java
@@ -0,0 +1,129 @@
+/*
+ * Created on 20.11.2003
+ *
+ * (c) Stabsstelle IKT-Strategie des Bundes
+ */
+package at.gv.egovernment.moa.spss.slinterface.transformers;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.xerces.dom.DocumentImpl;
+import org.w3c.dom.Attr;
+import org.w3c.dom.Element;
+import org.w3c.dom.NamedNodeMap;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+import org.w3c.dom.traversal.DocumentTraversal;
+import org.w3c.dom.traversal.NodeFilter;
+import org.w3c.dom.traversal.NodeIterator;
+
+import at.gv.egovernment.moa.spss.slinterface.Constants;
+
+/**
+ * @author Gregor Karlinger (mailto:gregor.karlinger@cio.gv.at) 
+ */
+public class Utils
+{
+  /**
+   * 
+   * @param elem
+   * @param prefixes
+   * @param namespaces
+   * @param names
+   * 
+   * @pre <code>elem</code> is backed by a <code>org.apache.xerces.dom.DocumentImpl</code>.
+   */
+  public static Element transformDeep(Element elem, Map prefixes, Map namespaces, Map names)
+  {
+    // Get node iterator for element
+    DocumentTraversal docTraversal = (DocumentImpl) elem.getOwnerDocument();
+    NodeIterator elemsIt = docTraversal.createNodeIterator(elem, NodeFilter.SHOW_ELEMENT, null, true);
+    
+    // Make iterator immutable
+    List elemsList = new LinkedList();
+    while (true)
+    {
+      Node currNode = elemsIt.nextNode();
+      if (currNode == null) break;
+      elemsList.add(currNode); 
+    }
+    
+    Iterator elemsImmIt = elemsList.iterator();
+    Element returnValue = null;
+    while (elemsImmIt.hasNext())
+    {
+      Element currElem = (Element) elemsImmIt.next();
+
+      String nsUri = currElem.getNamespaceURI();
+      String localName = currElem.getLocalName();
+      QName qName = new QName(nsUri, localName);
+
+      // Check if element is in "names"
+      QName newQName = (QName)names.get(qName);
+      if (newQName != null)
+      {
+        Element transformedElem = transformElem(currElem, newQName, prefixes);
+        if (returnValue == null) returnValue = transformedElem;
+      }
+      else
+      {
+        String newNamespace = (String)namespaces.get(nsUri);
+        if (newNamespace != null)
+        {
+          newQName = new QName(newNamespace, localName);
+          Element transformedElem = transformElem(currElem, newQName, prefixes);
+          if (returnValue == null) returnValue = transformedElem;
+        }
+      }  
+    }
+    return returnValue;
+  }
+  
+  /* ---------------------------------------------------------------------------------------------------- */
+
+  private static Element transformElem(Element currElem, QName newQName, Map prefixes)
+  {
+    Element newElem = currElem.getOwnerDocument().createElementNS(newQName.nsUrl_, 
+      (String) prefixes.get(newQName.nsUrl_) + ":" + newQName.localName_);
+        
+    currElem.getParentNode().replaceChild(newElem, currElem);
+        
+    // Treat attributes of currElem
+    NamedNodeMap currAttrs = currElem.getAttributes(); 
+    ArrayList currAttrsList = new ArrayList(currAttrs.getLength());
+    for (int i = 0; i < currAttrs.getLength(); i++) currAttrsList.add(currAttrs.item(i));
+    for (int i = 0; i < currAttrsList.size(); i++)
+    {
+      Attr currAttr = (Attr)currAttrsList.get(i);
+      currAttr.getOwnerElement().removeAttributeNode(currAttr);
+      
+      // Workaround for bad Xerces behaviour: default attributes in the xml namespace are created without
+      // the xml prefix
+      if (Constants.NSURI_XML_.equals(currAttr.getNamespaceURI()) && "space".equals(currAttr.getLocalName()))
+      {
+        newElem.setAttributeNS(Constants.NSURI_XML_, "xml:space", currAttr.getValue());        
+      }
+      else
+      {
+        newElem.setAttributeNode(currAttr); 
+      }
+    }
+        
+    // Treat child nodes of currElem
+    NodeList currChildren = currElem.getChildNodes();
+    ArrayList currChildrenList = new ArrayList(currChildren.getLength());
+    for (int i = 0; i < currChildren.getLength(); i++) currChildrenList.add(currChildren.item(i));
+    for (int i = 0; i < currChildrenList.size(); i++)
+    {
+      Node currChild = (Node)currChildrenList.get(i);
+      currElem.removeChild(currChild);
+      newElem.appendChild(currChild);
+    }
+    
+    return newElem;
+  }
+}
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