XEP-0172 Improvement

smack-extensions/src/main/java/org/jivesoftware/smackx/nick/NickListener.java

@@ -0,0 +1,29 @@
+/**
+ *
+ * Copyright 2018 Miguel Hincapie.
+ *
+ * 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.nick;
+
+import org.jivesoftware.smack.packet.Message;
+
+/**
+ * Used with NickManager.
+ *
+ * @author Miguel Hincapie 2018
+ * @see <a href="http://xmpp.org/extensions/xep-0172.html">XEP-0172: User Nickname</a>
+ */
+public interface NickListener {
+    void newNickMessage(Message message);
+}

smack-extensions/src/main/java/org/jivesoftware/smackx/nick/NickManager.java

@@ -0,0 +1,127 @@
+/**
+ *
+ * Copyright 2018 Miguel Hincapie.
+ *
+ * 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.nick;
+
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.WeakHashMap;
+
+import org.jivesoftware.smack.AsyncButOrdered;
+import org.jivesoftware.smack.Manager;
+import org.jivesoftware.smack.SmackException;
+import org.jivesoftware.smack.StanzaListener;
+import org.jivesoftware.smack.XMPPConnection;
+import org.jivesoftware.smack.filter.StanzaFilter;
+import org.jivesoftware.smack.packet.Message;
+import org.jivesoftware.smack.packet.Stanza;
+import org.jivesoftware.smackx.nick.filter.NickFilter;
+import org.jivesoftware.smackx.nick.packet.Nick;
+
+import org.jxmpp.jid.EntityBareJid;
+
+
+/**
+ * Implementation of XEP-0172.
+ *
+ * @author Miguel Hincapie 2018
+ * @see <a href="http://xmpp.org/extensions/xep-0172.html">XEP-0172: User Nickname</a>
+ */
+public final class NickManager extends Manager {
+
+    private static final Map<XMPPConnection, NickManager> INSTANCES = new WeakHashMap<>();
+
+    private static final StanzaFilter INCOMING_MESSAGE_FILTER = NickFilter.INSTANCE;
+
+    private final Set<NickListener> nickListeners = new HashSet<>();
+
+    private final AsyncButOrdered<Message> asyncButOrdered = new AsyncButOrdered<>();
+
+    private NickManager(XMPPConnection connection) {
+        super(connection);
+
+        connection.addSyncStanzaListener(new StanzaListener() {
+            @Override
+            public void processStanza(Stanza packet)
+                    throws
+                    SmackException.NotConnectedException,
+                    InterruptedException,
+                    SmackException.NotLoggedInException {
+                final Message message = (Message) packet;
+
+                asyncButOrdered.performAsyncButOrdered(message, new Runnable() {
+                    @Override
+                    public void run() {
+                        for (NickListener listener : nickListeners) {
+                            listener.newNickMessage(message);
+                        }
+                    }
+                });
+
+            }
+        }, INCOMING_MESSAGE_FILTER);
+    }
+
+    public static synchronized NickManager getInstanceFor(XMPPConnection connection) {
+        NickManager nickManager = INSTANCES.get(connection);
+        if (nickManager == null) {
+            nickManager = new NickManager(connection);
+            INSTANCES.put(connection, nickManager);
+        }
+        return nickManager;
+    }
+
+    public synchronized boolean addNickMessageListener(NickListener listener) {
+        return nickListeners.add(listener);
+    }
+
+    public synchronized boolean removeNickMessageListener(NickListener listener) {
+        return nickListeners.remove(listener);
+    }
+
+    public void sendNickMessage(EntityBareJid to, String nickname) throws
+            SmackException.NotLoggedInException,
+            InterruptedException,
+            SmackException.NotConnectedException {
+        sendStanza(createNickMessage(to, nickname));
+    }
+
+    /**
+     * Create a Smack's message stanza to update the user's nickName.
+     *
+     * @param to       the receiver.
+     * @param nickName the new nickName.
+     * @return instance of Message stanza.
+     */
+    private Message createNickMessage(EntityBareJid to, String nickName) {
+        Message message = new Message();
+        message.setTo(to);
+        message.setType(Message.Type.chat);
+        message.setStanzaId();
+        message.addExtension(new Nick(nickName));
+        return message;
+    }
+
+    private void sendStanza(Message message)
+            throws
+            SmackException.NotLoggedInException,
+            SmackException.NotConnectedException,
+            InterruptedException {
+        XMPPConnection connection = getAuthenticatedConnectionOrThrow();
+        connection.sendStanza(message);
+    }
+}

smack-extensions/src/main/java/org/jivesoftware/smackx/nick/filter/NickFilter.java

@@ -0,0 +1,36 @@
+/**
+ *
+ * Copyright 2018 Miguel Hincapie.
+ *
+ * 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.nick.filter;
+
+import org.jivesoftware.smack.filter.StanzaExtensionFilter;
+import org.jivesoftware.smack.filter.StanzaFilter;
+import org.jivesoftware.smackx.nick.packet.Nick;
+
+/**
+ * Used with NickManager.
+ *
+ * @author Miguel Hincapie 2018
+ * @see <a href="http://xmpp.org/extensions/xep-0172.html">XEP-0172: User Nickname</a>
+ */
+public final class NickFilter extends StanzaExtensionFilter {
+
+    public static final StanzaFilter INSTANCE = new NickFilter(Nick.ELEMENT_NAME, Nick.NAMESPACE);
+
+    private NickFilter(String elementName, String namespace) {
+        super(elementName, namespace);
+    }
+}

smack-extensions/src/main/java/org/jivesoftware/smackx/nick/filter/package-info.java

@@ -0,0 +1,21 @@
+/**
+ *
+ * Copyright 2018 Miguel Hincapie
+ *
+ * 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.
+ */
+
+/**
+ * Smacks implementation of XEP-0172: User Nickname.
+ */
+package org.jivesoftware.smackx.nick.filter;