Changeset 4856

Timestamp:

2003-07-02T16:35:13+12:00 (21 years ago)

Author:

kjdon

Message:

added some metadata stuff for finding out list of metadata from format statements

File:

• trunk/gsdl3/src/java/org/greenstone/gsdl3/action/Action.java (modified) (2 diffs)

trunk/gsdl3/src/java/org/greenstone/gsdl3/action/Action.java

@@ -13 +13 @@
 import java.util.Vector;
 import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
 
 /** base class for Actions */
@@ -58 +60 @@
     abstract public Element process(Element xml_in);
 
-//      protected Vector getMetadata(Element format) {
-//      NodeList nodes = format.getElementsByTagName("gsf:metadata");
-//          Vector meta_names = new Vector();
-//          for (int i=0; i<nodes.getLength(); i++) {
-//              meta_names.add(((Element)nodes.item(i)).getAttribute("name"));
-//          }
-//          return meta_names;
-//      }
+    protected void extractMetadataNames(Element format, HashSet meta_names) {
+    //NodeList nodes = format.getElementsByTagNameNS("metadata", "http://www.greenstone.org/configformat");
+    NodeList nodes = format.getElementsByTagName("gsf:metadata");
+        for (int i=0; i<nodes.getLength(); i++) {
+        String name = ((Element)nodes.item(i)).getAttribute("name");
+        System.out.println("found a metadata name="+name);
+        String select = ((Element)nodes.item(i)).getAttribute("select");
+        if (select.equals("parent")) {
+        meta_names.add("parent_"+name);
+        } else if (select.equals("ancestors")) {
+        String separator = ((Element)nodes.item(i)).getAttribute("separator");
+        meta_names.add("ancestors'"+separator+"'_"+name);
+        } else {
+        meta_names.add(name);
+        }
+        }
+    }
+
+    protected Element createMetadataParamList(HashSet metadata_names) {
+    Element param_list  = doc_.createElement(GSXML.PARAM_ELEM+GSXML.LIST_MODIFIER);
+    
+    Element param = null;
+    Iterator i = metadata_names.iterator();
+    while (i.hasNext()) {
+        String name = (String)i.next();
+        param = doc_.createElement(GSXML.PARAM_ELEM);
+        param_list.appendChild(param);
+        param.setAttribute(GSXML.NAME_ATT, "metadata");
+        param.setAttribute(GSXML.VALUE_ATT, name);
+    
+    }
+    System.out.println("metadata list = "+converter_.getString(param_list));
+    return param_list;
+    }
+
+
 }