001/**
002 *
003 * Copyright the original author or authors
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *     http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.jivesoftware.smackx.pubsub.packet;
018
019import java.util.Locale;
020
021/**
022 * Defines all the valid namespaces that are used with the {@link PubSub} packet
023 * as defined by the specification.
024 * 
025 * @author Robin Collier
026 */
027public enum PubSubNamespace {
028    BASIC(null),
029    ERROR("errors"),
030    EVENT("event"),
031    OWNER("owner");
032
033    private final String fragment;
034    private final String fullNamespace;
035
036    PubSubNamespace(String fragment) {
037        this.fragment = fragment;
038        if (fragment != null) {
039            fullNamespace = PubSub.NAMESPACE + '#' + fragment;
040        } else {
041            fullNamespace = PubSub.NAMESPACE;
042        }
043    }
044
045    public String getXmlns()
046    {
047        return fullNamespace;
048    }
049
050    public String getFragment()
051    {
052        return fragment;
053    }
054
055    public static PubSubNamespace valueOfFromXmlns(String ns)
056    {
057        int index = ns.lastIndexOf('#');
058
059        if (index != -1)
060        {
061            String suffix = ns.substring(ns.lastIndexOf('#') + 1);
062            return valueOf(suffix.toUpperCase(Locale.US));
063        }
064        else
065            return BASIC;
066    }
067}