Changeset 4701

Timestamp:

2003-06-18T11:51:34+12:00 (21 years ago)

Author:

kjdon

Message:

transformer now takes a HashMap of parameters to set as global params in the stylesheet before transformation. xml source must now also be a document, in order for XPaths like /page to work

File:

• trunk/gsdl3/src/java/org/greenstone/gsdl3/util/XMLTransformer.java (modified) (5 diffs)

trunk/gsdl3/src/java/org/greenstone/gsdl3/util/XMLTransformer.java

@@ -38 +38 @@
 import java.io.StringWriter;
 import java.io.File;
-
+import java.util.HashMap;
+import java.util.Set;
+import java.util.Map;
+import java.util.Iterator;
 /** XMLTransformer - utility class for greenstone
  *
@@ -92 +95 @@
         return output.toString();
     } catch (TransformerConfigurationException e) {
-        System.err.println("XMLTransformer: couldn't create transformer object: "+e.getMessage());
+        System.err.println("XMLTransformer: couldn't create transformer object: "+e.getMessageAndLocation());
+        System.err.println(e.getLocationAsString());  
         return "";
     } catch (TransformerException e) {
@@ -100 +104 @@
     }
 
-      public String transformToString(Document stylesheet, Node xml_in) {
-      
-      try {
+    public String transformToString(Document stylesheet, Document source) {
+    return transformToString(stylesheet, source, null);
+    }
+    
+    public String transformToString(Document stylesheet, Document source, HashMap parameters) {
+    
+    try {
         // Use the TransformerFactory to process the stylesheet Source and generate a Transformer.
         Transformer transformer = t_factory_.newTransformer(new DOMSource(stylesheet));
+        if (parameters != null) {
+        Set params = parameters.entrySet();
+        Iterator i = params.iterator();
+        while (i.hasNext()) {
+            Map.Entry m = (Map.Entry)i.next();
+            transformer.setParameter((String)m.getKey(), m.getValue());
+        }
+        }
+        //transformer.setParameter("page_lang", source.getDocumentElement().getAttribute(GSXML.LANG_ATT));
+
         
         // Use the Transformer to transform an XML Source and send the output to a Result object.
         StringWriter output = new StringWriter();
         
-        transformer.transform(new DOMSource(xml_in), new StreamResult(output));
+        transformer.transform(new DOMSource(source), new StreamResult(output));
         return output.toString();
     } catch (TransformerConfigurationException e) {
-        System.err.println("XMLTransformer: couldn't create transformer object: "+e.getMessage());
+        System.err.println("XMLTransformer: couldn't create transformer object: "+e.getMessageAndLocation());
+        System.err.println(e.getLocationAsString());  
         return "";
     } catch (TransformerException e) {
@@ -120 +139 @@
       }
 
-    public Node transform(Document stylesheet, Node xml_in) {
+    public Node transform(Document stylesheet, Document source) {
+    return transform(stylesheet, source, null);
+    }
+
+    public Node transform(Document stylesheet, Document source, HashMap parameters) {
 
     try {
         // Use the TransformerFactory to process the stylesheet Source and generate a Transformer.
         Transformer transformer = t_factory_.newTransformer(new DOMSource(stylesheet));
+        if (parameters != null) {
+        Set params = parameters.entrySet();
+        Iterator i = params.iterator();
+        while (i.hasNext()) {
+            Map.Entry m = (Map.Entry)i.next();
+            transformer.setParameter((String)m.getKey(), m.getValue());
+        }
+        }
 
         DOMResult result = new DOMResult();
-        transformer.transform(new DOMSource(xml_in), result);
+        transformer.transform(new DOMSource(source), result);
         return result.getNode().getFirstChild();
     } catch (TransformerConfigurationException e) {
-        System.err.println("XMLTransformer: couldn't create transformer object: "+e.getMessage());
+        System.err.println("XMLTransformer: couldn't create transformer object: "+e.getMessageAndLocation());
+        System.err.println(e.getLocationAsString());  
         return null;
     } catch (TransformerException e) {
@@ -136 +168 @@
         return null;
     }   
-      }
+    
+
+    }
 }