Changeset 8930 for trunk/gli/src/org/greenstone/gatherer/gems/ElementWrapper.java

Timestamp:

2005-01-25T16:32:41+13:00 (19 years ago)

Author:

mdewsnip

Message:

More GEMS improvements, by Matthew Whyte. Now has subfield support.

File:

• trunk/gli/src/org/greenstone/gatherer/gems/ElementWrapper.java (modified) (5 diffs)

trunk/gli/src/org/greenstone/gatherer/gems/ElementWrapper.java

@@ -61 +61 @@
     private String namespace = "";
 
+    private NodeList subelements = null; //The list of subelements
+
     private Troolean is_extracted = new Troolean();
     /** Constructor for elements with no namespace necessary.
@@ -69 +71 @@
     //System.err.println("ElementWrapper: element is: " + element); //debug
     Element parent =  (Element)element.getParentNode();
-    if (parent != null) {
-        this.namespace = parent.getAttribute("namespace");
-    }
-
+    if (parent != null)
+        {
+        this.namespace = parent.getAttribute("namespace");
+        }
+    
+    subelements = element.getElementsByTagName("Subelement");
+    //Should read in each subelement's value tree?
     }
 
@@ -81 +86 @@
     public void addAttribute(String name, String language, String value) {
     MSMUtils.addElementAttribute(element, name, language, value);
+    }
+
+
+    /**
+       Check to see if the element contains a particular subelement
+       @return true if element already contains a subelement of name name.
+       @param name the name of the subelement to check for, as a <strong>String</strong> 
+       @author Matthew Whyte
+       @date last modified: 19/01/04
+    */
+    public boolean containsSubelement(String name)
+    {
+    //System.err.println("Want to see if subelement: " + name + " exists."); //debug
+    for(int i = 0; i < subelements.getLength(); i++)
+        {
+        Element sibling = (Element)subelements.item(i);
+        String sibling_name = sibling.getAttribute("name");
+        if(sibling_name.equals(name))
+            {
+            return true;
+            }
+        }
+       
+    return false;
+    }
+
+    /**
+       Method to acquire a list of all the subelements in the element.
+       @return A <strong>NodeList</strong> containing all of this element's subelements.
+
+       @author: Matthew Whyte
+       @date last modified: 19/01/04
+     */
+    public NodeList getSubelements()
+    {
+    return subelements;
+    }
+
+    /**
+       Method to determine if this is a subelement
+       @return A <strong>boolean</strong> - true if the 'element' is a subelement
+       @author Matthew Whyte
+       @date last modified 19/01/04
+     */
+    public boolean isSubelement()
+    {
+    Element element = this.getElement();
+    if(element.getTagName().equals("Subelement"))
+        {
+        return true;
+        }
+    return false;
     }
 
@@ -137 +194 @@
     return MSMUtils.getIdentifier(element);
     }
+
+    /** Retrieve the name of this element. Name is unique.
+    @return The name (without the namespace) as a <strong>String</strong>.
+    @see org.greenstone.gatherer.msm.MSMUtils
+    @author Matthew Whyte
+    @date last modified: 21/01/04
+     */
+    public String getNameOnly() {
+    return MSMUtils.getNameOnly(element);
+    }
+
     /** Retrieve the name of this element. Name is unique.
      * @return The name as a <strong>String</strong>.
@@ -142 +210 @@
      */
     public String getName() {
-    return MSMUtils.getFullName(element, namespace);
-    }
+        return MSMUtils.getFullName(element, namespace);
+    }
+
+
     /** Retrieve the namespace prefix for this element wrapper.
      * @return A <strong>String</strong> containing the namespace or "" if there is no namespace for this element.