JingleTransportMethodManager.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.jingle;
- import java.util.HashMap;
- import java.util.Iterator;
- import java.util.Set;
- import java.util.WeakHashMap;
- import org.jivesoftware.smack.Manager;
- import org.jivesoftware.smack.XMPPConnection;
- import org.jivesoftware.smackx.jingle.element.Jingle;
- import org.jivesoftware.smackx.jingle.element.JingleContent;
- import org.jivesoftware.smackx.jingle.element.JingleContentTransport;
- import org.jivesoftware.smackx.jingle.transports.JingleTransportManager;
- import org.jivesoftware.smackx.jingle.transports.jingle_ibb.element.JingleIBBTransport;
- import org.jivesoftware.smackx.jingle.transports.jingle_s5b.elements.JingleS5BTransport;
- /**
- * Manager where TransportMethods are registered.
- */
- public final class JingleTransportMethodManager extends Manager {
- private static final WeakHashMap<XMPPConnection, JingleTransportMethodManager> INSTANCES = new WeakHashMap<>();
- private final HashMap<String, JingleTransportManager<?>> transportManagers = new HashMap<>();
- private static final String[] transportPreference = new String[] {
- JingleS5BTransport.NAMESPACE_V1,
- JingleIBBTransport.NAMESPACE_V1
- };
- private JingleTransportMethodManager(XMPPConnection connection) {
- super(connection);
- }
- public static synchronized JingleTransportMethodManager getInstanceFor(XMPPConnection connection) {
- JingleTransportMethodManager manager = INSTANCES.get(connection);
- if (manager == null) {
- manager = new JingleTransportMethodManager(connection);
- INSTANCES.put(connection, manager);
- }
- return manager;
- }
- public void registerTransportManager(JingleTransportManager<?> manager) {
- transportManagers.put(manager.getNamespace(), manager);
- }
- public static JingleTransportManager<?> getTransportManager(XMPPConnection connection, String namespace) {
- return getInstanceFor(connection).getTransportManager(namespace);
- }
- public JingleTransportManager<?> getTransportManager(String namespace) {
- return transportManagers.get(namespace);
- }
- public static JingleTransportManager<?> getTransportManager(XMPPConnection connection, Jingle request) {
- return getInstanceFor(connection).getTransportManager(request);
- }
- public JingleTransportManager<?> getTransportManager(Jingle request) {
- JingleContent content = request.getContents().get(0);
- if (content == null) {
- return null;
- }
- JingleContentTransport transport = content.getTransport();
- if (transport == null) {
- return null;
- }
- return getTransportManager(transport.getNamespace());
- }
- public static JingleTransportManager<?> getBestAvailableTransportManager(XMPPConnection connection) {
- return getInstanceFor(connection).getBestAvailableTransportManager();
- }
- public JingleTransportManager<?> getBestAvailableTransportManager() {
- JingleTransportManager<?> tm;
- for (String ns : transportPreference) {
- tm = getTransportManager(ns);
- if (tm != null) {
- return tm;
- }
- }
- Iterator<String> it = transportManagers.keySet().iterator();
- if (it.hasNext()) {
- return getTransportManager(it.next());
- }
- return null;
- }
- public JingleTransportManager<?> getBestAvailableTransportManager(Set<String> except) {
- JingleTransportManager<?> tm;
- for (String ns : transportPreference) {
- tm = getTransportManager(ns);
- if (tm != null) {
- if (except.contains(tm.getNamespace())) {
- continue;
- }
- return tm;
- }
- }
- for (String ns : transportManagers.keySet()) {
- if (except.contains(ns)) {
- continue;
- }
- return getTransportManager(ns);
- }
- return null;
- }
- }