001/**
002 *
003 * Copyright © 2014-2020 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 javax.xml.namespace.QName;
025
026import org.jivesoftware.smack.util.XmlStringBuilder;
027
028public class Mechanisms implements ExtensionElement {
029
030    public static final String ELEMENT = "mechanisms";
031    public static final String NAMESPACE = "urn:ietf:params:xml:ns:xmpp-sasl";
032    public static final QName QNAME = new QName(NAMESPACE, ELEMENT);
033
034    public final List<String> mechanisms = new LinkedList<String>();
035
036    public Mechanisms(String mechanism) {
037        mechanisms.add(mechanism);
038    }
039
040    public Mechanisms(Collection<String> mechanisms) {
041        this.mechanisms.addAll(mechanisms);
042    }
043
044    @Override
045    public String getElementName() {
046        return ELEMENT;
047    }
048
049    @Override
050    public String getNamespace() {
051        return NAMESPACE;
052    }
053
054    public List<String> getMechanisms() {
055        return Collections.unmodifiableList(mechanisms);
056    }
057
058    @Override
059    public XmlStringBuilder toXML(org.jivesoftware.smack.packet.XmlEnvironment enclosingNamespace) {
060        XmlStringBuilder xml = new XmlStringBuilder(this);
061        xml.rightAngleBracket();
062        for (String mechanism : mechanisms) {
063            xml.element("mechanism", mechanism);
064        }
065        xml.closeElement(this);
066        return xml;
067    }
068
069}