/*

  * Copyright 1999,2004 The Apache Software Foundation.

  * 

  * Licensed under the Apache License, Version 2.0 (the "License");

  * you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at

  * 

  *      http://www.apache.org/licenses/LICENSE-2.0

  * 

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  */

 package org.apache.commons.feedparser;

 import org.jaxen.SimpleNamespaceContext;

 import org.jdom.Namespace;

 /**

  * A class to manage XML namespaces

  *

  * @author <a href="mailto:burton@apache.org">Kevin A. Burton (burtonator)</a>

  * @version $Id: NS.java 373614 2006-01-30 22:31:21Z mvdb $

  */

 public class NS {

     public static final Namespace RDFS =

         Namespace.getNamespace( "rdfs", "http://www.w3.org/2000/01/rdf-schema#" );

     public static final Namespace FOAF =

         Namespace.getNamespace( "foaf", "http://xmlns.com/foaf/0.1/" );

     public static final Namespace KR =

         Namespace.getNamespace( "kr", "http://ksa.peerfear.org/ksa-rdf#" );

     public static final Namespace CONTENT =

         Namespace.getNamespace( "content", "http://purl.org/rss/1.0/modules/content/" );

     public static final Namespace QUOTE =

         Namespace.getNamespace( "quote", "http://purl.org/rss/1.0/modules/quote/" );

     public static final Namespace RDF =

         Namespace.getNamespace( "rdf", "http://www.w3.org/1999/02/22-rdf-syntax-ns#" );

     public static final Namespace RSS =

         Namespace.getNamespace( "rss", "http://purl.org/rss/1.0/" );

     public static final Namespace AGG =

         Namespace.getNamespace( "agg", "http://purl.org/rss/modules/aggregation/" );

     public static final Namespace IM =

         Namespace.getNamespace( "im", "http://purl.org/rss/1.0/item-images/" );

     public static final Namespace DC =

         Namespace.getNamespace( "dc", "http://purl.org/dc/elements/1.1/" );

     public static final Namespace DCTERMS =

         Namespace.getNamespace( "dcterms", "http://purl.org/dc/terms/" );

     public static final Namespace SUBSCRIPTION =

         Namespace.getNamespace( "sub", "http://purl.org/rss/1.0/modules/subscription/" );

     public static final Namespace NC =

         Namespace.getNamespace( "NC", "http://home.netscape.com/NC-rdf#" );

     public static final Namespace XHTML =

         Namespace.getNamespace( "xhtml", "http://www.w3.org/1999/xhtml" );

     public static final Namespace ATOM =

         Namespace.getNamespace( "atom", "http://purl.org/atom/ns#" );

     public static final Namespace WFW =

         Namespace.getNamespace( "wfw", "http://wellformedweb.org/CommentAPI/" );

     /**

      * mod_taxonomy

      */

     public static final Namespace TAXO =

         Namespace.getNamespace( "taxo", "http://purl.org/rss/1.0/modules/taxonomy/" );

     public static SimpleNamespaceContext context = null;

     static {

         //create all namespace contexts and do it ONCE

         context = new SimpleNamespaceContext();

         context.addNamespace( ATOM.getPrefix(), ATOM.getURI() );

         context.addNamespace( DC.getPrefix(), DC.getURI() );

         context.addNamespace( FOAF.getPrefix(), FOAF.getURI() );

         context.addNamespace( RDF.getPrefix(), RDF.getURI() );

         context.addNamespace( RDFS.getPrefix(), RDFS.getURI() );

         context.addNamespace( TAXO.getPrefix(), TAXO.getURI() );

     }

 }