138 lines
4.7 KiB
Java
138 lines
4.7 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.jingle;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.Set;
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import java.util.WeakHashMap;
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import org.jivesoftware.smack.Manager;
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import org.jivesoftware.smack.XMPPConnection;
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import org.jivesoftware.smackx.jingle3.element.JingleElement;
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import org.jivesoftware.smackx.jingle3.element.JingleContentElement;
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import org.jivesoftware.smackx.jingle3.element.JingleContentTransportElement;
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import org.jivesoftware.smackx.jingle.transports.JingleTransportManager;
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import org.jivesoftware.smackx.jingle.transports.jingle_ibb.element.JingleIBBTransport;
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import org.jivesoftware.smackx.jingle3.transport.jingle_s5b.elements.JingleS5BTransport;
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/**
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* Manager where TransportMethods are registered.
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*/
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public final class JingleTransportMethodManager extends Manager {
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private static final WeakHashMap<XMPPConnection, JingleTransportMethodManager> INSTANCES = new WeakHashMap<>();
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private final HashMap<String, JingleTransportManager<?>> transportManagers = new HashMap<>();
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private static final String[] transportPreference = new String[] {
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JingleS5BTransport.NAMESPACE_V1,
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JingleIBBTransport.NAMESPACE_V1
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};
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private JingleTransportMethodManager(XMPPConnection connection) {
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super(connection);
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}
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public static JingleTransportMethodManager getInstanceFor(XMPPConnection connection) {
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JingleTransportMethodManager manager = INSTANCES.get(connection);
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if (manager == null) {
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manager = new JingleTransportMethodManager(connection);
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INSTANCES.put(connection, manager);
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}
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return manager;
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}
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public void registerTransportManager(JingleTransportManager<?> manager) {
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transportManagers.put(manager.getNamespace(), manager);
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}
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public void unregisterTransportManager(JingleTransportManager<?> manager) {
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transportManagers.remove(manager.getNamespace());
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}
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public static JingleTransportManager<?> getTransportManager(XMPPConnection connection, String namespace) {
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return getInstanceFor(connection).getTransportManager(namespace);
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}
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public JingleTransportManager<?> getTransportManager(String namespace) {
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return transportManagers.get(namespace);
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}
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public static JingleTransportManager<?> getTransportManager(XMPPConnection connection, JingleElement request) {
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return getInstanceFor(connection).getTransportManager(request);
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}
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public JingleTransportManager<?> getTransportManager(JingleElement request) {
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JingleContentElement content = request.getContents().get(0);
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if (content == null) {
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return null;
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}
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JingleContentTransportElement transport = content.getTransport();
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if (transport == null) {
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return null;
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}
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return getTransportManager(transport.getNamespace());
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}
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public static JingleTransportManager<?> getBestAvailableTransportManager(XMPPConnection connection) {
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return getInstanceFor(connection).getBestAvailableTransportManager();
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}
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public JingleTransportManager<?> getBestAvailableTransportManager() {
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JingleTransportManager<?> tm;
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for (String ns : transportPreference) {
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tm = getTransportManager(ns);
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if (tm != null) {
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return tm;
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}
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}
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Iterator<String> it = transportManagers.keySet().iterator();
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if (it.hasNext()) {
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return getTransportManager(it.next());
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}
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return null;
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}
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public JingleTransportManager<?> getBestAvailableTransportManager(Set<String> except) {
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JingleTransportManager<?> tm;
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for (String ns : transportPreference) {
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tm = getTransportManager(ns);
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if (tm != null) {
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if (except.contains(tm.getNamespace())) {
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continue;
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}
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return tm;
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}
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}
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for (String ns : transportManagers.keySet()) {
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if (except.contains(ns)) {
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continue;
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}
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return getTransportManager(ns);
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}
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return null;
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}
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}
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