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3d4e7938a7
ExtensionElement is now a marker interface that requires all implementation non-abstract classes to carry a static final QNAME field (of type QName). This is verified by a new unit test. Also FullyQualifiedElement is renamed to simply XmlElement. XmlElement is used over ExtensionElement when implementing classes do not statically know the qualified name of the XML elements they represent. In general, XmlElement should be used sparingly, and every XML element should be modeled by its own Java class (implementing ExtensionElement).
93 lines
2.5 KiB
Java
93 lines
2.5 KiB
Java
/**
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*
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* Copyright 2017 Paul Schaub
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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.smackx.omemo.element;
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import org.jivesoftware.smack.packet.XmlElement;
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import org.jivesoftware.smack.packet.XmlEnvironment;
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import org.jivesoftware.smack.util.XmlStringBuilder;
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import org.jivesoftware.smack.util.stringencoder.Base64;
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import org.jivesoftware.smackx.omemo.util.OmemoConstants;
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/**
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* Small class to collect key (byte[]), its id and whether its a preKey or not.
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*/
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public class OmemoKeyElement implements XmlElement {
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public static final String ELEMENT = "key";
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public static final String NAMESPACE = OmemoConstants.OMEMO_NAMESPACE_V_AXOLOTL;
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public static final String ATTR_RID = "rid";
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public static final String ATTR_PREKEY = "prekey";
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private final byte[] data;
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private final int id;
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private final boolean preKey;
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public OmemoKeyElement(byte[] data, int id) {
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this(data, id, false);
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}
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public OmemoKeyElement(byte[] data, int id, boolean preKey) {
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this.data = data;
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this.id = id;
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this.preKey = preKey;
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}
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public int getId() {
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return this.id;
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}
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public byte[] getData() {
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return this.data;
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}
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public boolean isPreKey() {
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return this.preKey;
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}
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@Override
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public String toString() {
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return Integer.toString(id);
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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 String getNamespace() {
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return NAMESPACE;
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}
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@Override
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public XmlStringBuilder toXML(XmlEnvironment enclosingXmlEnvironment) {
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XmlStringBuilder sb = new XmlStringBuilder(this, enclosingXmlEnvironment);
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if (isPreKey()) {
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sb.attribute(ATTR_PREKEY, true);
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}
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sb.attribute(ATTR_RID, getId());
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sb.rightAngleBracket();
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sb.append(Base64.encodeToString(getData()));
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sb.closeElement(this);
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return sb;
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}
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}
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