code: private void parseNamespaceFilterConfig(final Node node, final ConfigSettings config) {
  		String name;
  		Integer value;
  		Node nnode;
  		final NodeList list = node.getChildNodes();
  		final int length = list.getLength();
  		final Set<Integer> namespaces = new HashSet<Integer>();
  
  		for (int i = 0; i < length; i++) {
  			nnode = list.item(i);
  
  			name = nnode.getNodeName().toUpperCase();
  			if (name.equals(NAMESPACE_TO_KEEP)) {
  
  				value = Integer.parseInt(nnode.getChildNodes().item(0)
  						.getNodeValue());
  				namespaces.add(value);
  
  
  			}
  
  		}
  
  		config.setConfigParameter(
  				ConfigurationKeys.NAMESPACES_TO_KEEP,
  				namespaces);
  
  	}
docs: Parses the namespaces parameter section. This is the subsection of filter.
  
  @param node
  Reference to the current used xml node
  @param config
  Reference to the ConfigSettings