001/**
002 *
003 * Copyright © 2014 Florian Schmaus
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.smack.packet;
018
019import java.util.Collection;
020import java.util.Collections;
021import java.util.LinkedList;
022import java.util.List;
023
024import org.jivesoftware.smack.util.XmlStringBuilder;
025
026public class Mechanisms implements ExtensionElement {
027
028    public static final String ELEMENT = "mechanisms";
029    public static final String NAMESPACE = "urn:ietf:params:xml:ns:xmpp-sasl";
030
031    public final List<String> mechanisms = new LinkedList<String>();
032
033    public Mechanisms(String mechanism) {
034        mechanisms.add(mechanism);
035    }
036
037    public Mechanisms(Collection<String> mechanisms) {
038        this.mechanisms.addAll(mechanisms);
039    }
040
041    @Override
042    public String getElementName() {
043        return ELEMENT;
044    }
045
046    @Override
047    public String getNamespace() {
048        return NAMESPACE;
049    }
050
051    public List<String> getMechanisms() {
052        return Collections.unmodifiableList(mechanisms);
053    }
054
055    @Override
056    public XmlStringBuilder toXML(String enclosingNamespace) {
057        XmlStringBuilder xml = new XmlStringBuilder(this);
058        xml.rightAngleBracket();
059        for (String mechanism : mechanisms) {
060            xml.element("mechanism", mechanism);
061        }
062        xml.closeElement(this);
063        return xml;
064    }
065
066}