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125 lines
3.3 KiB
Java
125 lines
3.3 KiB
Java
/**
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*
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* Copyright © 2014 Florian Schmaus
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smack.packet;
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import org.jivesoftware.smack.util.StringUtils;
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import org.jivesoftware.smack.util.XmlStringBuilder;
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/**
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* The stream open <b>tag</b>.
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*/
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public class StreamOpen implements Nonza {
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public static final String ELEMENT = "stream:stream";
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public static final String CLIENT_NAMESPACE = "jabber:client";
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public static final String SERVER_NAMESPACE = "jabber:server";
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/**
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* RFC 6120 § 4.7.5.
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*/
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public static final String VERSION = "1.0";
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/**
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* RFC 6120 § 4.7.1.
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*/
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private final String from;
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/**
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* RFC 6120 § 4.7.2.
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*/
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private final String to;
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/**
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* RFC 6120 § 4.7.3.
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*/
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private final String id;
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/**
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* RFC 6120 § 4.7.4.
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*/
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private final String lang;
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/**
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* RFC 6120 § 4.8.2.
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*/
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private final String contentNamespace;
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public StreamOpen(CharSequence to) {
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this(to, null, null, null, StreamContentNamespace.client);
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}
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public StreamOpen(CharSequence to, CharSequence from, String id) {
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this(to, from, id, "en", StreamContentNamespace.client);
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}
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public StreamOpen(CharSequence to, CharSequence from, String id, String lang, StreamContentNamespace ns) {
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this.to = StringUtils.maybeToString(to);
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this.from = StringUtils.maybeToString(from);
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this.id = id;
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this.lang = lang;
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switch (ns) {
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case client:
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this.contentNamespace = CLIENT_NAMESPACE;
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break;
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case server:
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this.contentNamespace = SERVER_NAMESPACE;
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break;
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default:
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throw new IllegalStateException();
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}
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}
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@Override
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public String getNamespace() {
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return contentNamespace;
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}
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@Override
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public String getElementName() {
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return ELEMENT;
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}
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@Override
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public XmlStringBuilder toXML(XmlEnvironment enclosingXmlEnvironment) {
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XmlStringBuilder xml = new XmlStringBuilder();
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xml.halfOpenElement(getElementName());
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String namespace = CLIENT_NAMESPACE;
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// We always want to state 'xmlns' for stream open tags.
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if (enclosingXmlEnvironment != null) {
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namespace = enclosingXmlEnvironment.getEffectiveNamespaceOrUse(CLIENT_NAMESPACE);
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}
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xml.attribute("xmlns", namespace);
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xml.attribute("to", to);
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xml.attribute("xmlns:stream", "http://etherx.jabber.org/streams");
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xml.attribute("version", VERSION);
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xml.optAttribute("from", from);
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xml.optAttribute("id", id);
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xml.xmllangAttribute(lang);
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xml.rightAngleBracket();
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return xml;
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}
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public enum StreamContentNamespace {
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client,
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server;
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}
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}
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