OmemoDeviceListElement.java
- /**
- *
- * Copyright 2017 Paul Schaub
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- package org.jivesoftware.smackx.omemo.element;
- import java.util.Collections;
- import java.util.HashSet;
- import java.util.Iterator;
- import java.util.Set;
- import org.jivesoftware.smack.packet.ExtensionElement;
- import org.jivesoftware.smack.util.Objects;
- import org.jivesoftware.smack.util.XmlStringBuilder;
- import org.jivesoftware.smackx.omemo.internal.OmemoCachedDeviceList;
- /**
- * A OMEMO device list update containing the IDs of all active devices of a contact.
- *
- * @author Paul Schaub
- */
- public abstract class OmemoDeviceListElement implements ExtensionElement {
- public static final String DEVICE = "device";
- public static final String ID = "id";
- public static final String LIST = "list";
- /**
- * Unmodifiable set of device IDs.
- */
- private final Set<Integer> deviceIds;
- public OmemoDeviceListElement(Set<Integer> deviceIds) {
- deviceIds = Objects.requireNonNull(deviceIds);
- this.deviceIds = Collections.unmodifiableSet(deviceIds);
- }
- public OmemoDeviceListElement(OmemoCachedDeviceList cachedList) {
- this.deviceIds = Collections.unmodifiableSet(cachedList.getActiveDevices());
- }
- public Set<Integer> getDeviceIds() {
- return deviceIds;
- }
- public Set<Integer> copyDeviceIds() {
- return new HashSet<>(deviceIds);
- }
- @Override
- public String getElementName() {
- return LIST;
- }
- @Override
- public final XmlStringBuilder toXML(org.jivesoftware.smack.packet.XmlEnvironment enclosingNamespace) {
- XmlStringBuilder sb = new XmlStringBuilder(this).rightAngleBracket();
- for (Integer id : deviceIds) {
- sb.halfOpenElement(DEVICE).attribute(ID, id).closeEmptyElement();
- }
- sb.closeElement(this);
- return sb;
- }
- @Override
- public final String toString() {
- StringBuilder sb = new StringBuilder("OmemoDeviceListElement[");
- Iterator<Integer> iterator = deviceIds.iterator();
- for (int i : deviceIds) {
- sb.append(i);
- if (iterator.hasNext()) {
- sb.append(',');
- }
- }
- return sb.append(']').toString();
- }
- }