Jitsi Videobridge Client in Java

Jitsi Videobridge is a WebRTC-compatible Selective Forwarding Unit (SFU) that routes video streams between participants. Here's a comprehensive guide to building a Jitsi Videobridge client in Java.

Approaches Overview

Jitsi Meet API Integration - Using Jitsi's JavaScript API with Java backend
WebRTC Java Libraries - Direct WebRTC implementation
JVB REST API Client - Managing conferences programmatically
Custom WebSocket Client - Direct JVB communication

Approach 1: Jitsi Meet API Integration with Java Backend

Dependencies

<dependency> <groupId>org.java-websocket</groupId> <artifactId>Java-WebSocket</artifactId> <version>1.5.3</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.15.0</version> </dependency> <dependency> <groupId>org.apache.httpcomponents.client5</groupId> <artifactId>httpclient5</artifactId> <version>5.2.1</version> </dependency>

Example 1: Basic Jitsi Conference Manager

import com.fasterxml.jackson.databind.ObjectMapper; import org.apache.hc.client5.http.classic.methods.HttpGet; import org.apache.hc.client5.http.classic.methods.HttpPost; import org.apache.hc.client5.http.entity.UrlEncodedFormEntity; import org.apache.hc.client5.http.impl.classic.CloseableHttpClient; import org.apache.hc.client5.http.impl.classic.CloseableHttpResponse; import org.apache.hc.client5.http.impl.classic.HttpClients; import org.apache.hc.core5.http.NameValuePair; import org.apache.hc.core5.http.message.BasicNameValuePair; import java.util.*; public class JitsiConferenceManager { private final String jitsiDomain; private final CloseableHttpClient httpClient; private final ObjectMapper objectMapper; public JitsiConferenceManager(String jitsiDomain) { this.jitsiDomain = jitsiDomain; this.httpClient = HttpClients.createDefault(); this.objectMapper = new ObjectMapper(); } public static class ConferenceInfo { public String conferenceId; public String roomName; public int participantCount; public Map<String, Object> properties; public ConferenceInfo(String conferenceId, String roomName) { this.conferenceId = conferenceId; this.roomName = roomName; this.properties = new HashMap<>(); } } public ConferenceInfo createConference(String roomName) throws Exception { // Generate a unique conference ID String conferenceId = generateConferenceId(roomName); ConferenceInfo conference = new ConferenceInfo(conferenceId, roomName); conference.properties.put("createdAt", new Date()); conference.properties.put("moderator", true); System.out.println("Created conference: " + conferenceId + " for room: " + roomName); return conference; } public String generateJitsiMeetURL(ConferenceInfo conference) { String baseURL = "https://" + jitsiDomain + "/"; String roomName = conference.roomName.replaceAll("[^a-zA-Z0-9]", ""); // Add configuration parameters Map<String, String> config = new HashMap<>(); config.put("prejoinPageEnabled", "false"); config.put("startWithAudioMuted", "true"); config.put("startWithVideoMuted", "false"); StringBuilder urlBuilder = new StringBuilder(baseURL).append(roomName); // Add config parameters config.forEach((key, value) -> { urlBuilder.append(urlBuilder.indexOf("?") == -1 ? "?" : "&") .append("config.").append(key).append("=").append(value); }); // Add user info if available if (conference.properties.containsKey("displayName")) { urlBuilder.append("&userInfo.displayName=") .append(conference.properties.get("displayName")); } return urlBuilder.toString(); } public Map<String, Object> getConferenceStatistics(String conferenceId) throws Exception { String statsUrl = "http://" + jitsiDomain + ":8080/colibri/stats"; HttpGet request = new HttpGet(statsUrl); try (CloseableHttpResponse response = httpClient.execute(request)) { if (response.getCode() == 200) { return objectMapper.readValue(response.getEntity().getContent(), Map.class); } else { throw new RuntimeException("Failed to get conference stats: " + response.getCode()); } } } public boolean endConference(String conferenceId) throws Exception { // Jitsi conferences automatically end when all participants leave // This is a placeholder for custom conference management System.out.println("Ending conference: " + conferenceId); return true; } private String generateConferenceId(String roomName) { return roomName + "_" + System.currentTimeMillis() + "_" + UUID.randomUUID().toString().substring(0, 8); } public static void main(String[] args) { try { JitsiConferenceManager manager = new JitsiConferenceManager("meet.jit.si"); // Create a conference ConferenceInfo conference = manager.createConference("TestRoom123"); conference.properties.put("displayName", "Java Client User"); // Generate Jitsi Meet URL String meetURL = manager.generateJitsiMeetURL(conference); System.out.println("Join the meeting: " + meetURL); // Get conference statistics Map<String, Object> stats = manager.getConferenceStatistics(conference.conferenceId); System.out.println("Conference stats: " + stats); } catch (Exception e) { e.printStackTrace(); } } }

Approach 2: WebRTC Java Client with Jitsi Videobridge

Example 2: WebRTC Client Implementation

import org.java_websocket.client.WebSocketClient; import org.java_websocket.handshake.ServerHandshake; import javax.json.*; import java.net.URI; import java.net.URISyntaxException; import java.util.concurrent.CompletableFuture; import java.util.concurrent.ConcurrentHashMap; import java.util.concurrent.Executors; import java.util.concurrent.ScheduledExecutorService; import java.util.concurrent.TimeUnit; public class JitsiWebRTCClient { private WebSocketClient webSocketClient; private final String jitsiDomain; private final String roomName; private String participantId; private boolean connected = false; private final ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(2); private final ConcurrentHashMap<String, Object> sessionData = new ConcurrentHashMap<>(); public JitsiWebRTCClient(String jitsiDomain, String roomName) { this.jitsiDomain = jitsiDomain; this.roomName = roomName; this.participantId = generateParticipantId(); } public CompletableFuture<Boolean> connect() { CompletableFuture<Boolean> future = new CompletableFuture<>(); try { String wsUrl = "wss://" + jitsiDomain + "/xmpp-websocket"; webSocketClient = new WebSocketClient(new URI(wsUrl)) { @Override public void onOpen(ServerHandshake handshake) { System.out.println("WebSocket connection opened"); connected = true; future.complete(true); // Start XMPP authentication and join room authenticateAndJoin(); } @Override public void onMessage(String message) { handleWebSocketMessage(message); } @Override public void onClose(int code, String reason, boolean remote) { System.out.println("WebSocket connection closed: " + reason); connected = false; future.completeExceptionally(new RuntimeException("Connection closed: " + reason)); } @Override public void onError(Exception ex) { System.err.println("WebSocket error: " + ex.getMessage()); future.completeExceptionally(ex); } }; webSocketClient.connect(); } catch (URISyntaxException e) { future.completeExceptionally(e); } return future; } private void authenticateAndJoin() { // Simulate XMPP authentication and room joining scheduler.schedule(() -> { sendXMPPStanza(createPresenceStanza()); sendXMPPStanza(createJoinRoomStanza()); }, 1, TimeUnit.SECONDS); } private void handleWebSocketMessage(String message) { try { JsonReader reader = Json.createReader(new java.io.StringReader(message)); JsonObject jsonMessage = reader.readObject(); String messageType = jsonMessage.getString("type", "unknown"); switch (messageType) { case "presence": handlePresenceMessage(jsonMessage); break; case "iq": handleIQMessage(jsonMessage); break; case "message": handleChatMessage(jsonMessage); break; case "bridge": handleBridgeMessage(jsonMessage); break; default: System.out.println("Unknown message type: " + messageType); } } catch (Exception e) { System.err.println("Error parsing WebSocket message: " + e.getMessage()); } } private void handlePresenceMessage(JsonObject presence) { String from = presence.getString("from", ""); if (from.contains(roomName)) { System.out.println("Participant presence update: " + from); // Handle participant joining/leaving } } private void handleIQMessage(JsonObject iq) { String id = iq.getString("id", ""); String type = iq.getString("type", ""); if ("result".equals(type)) { // Handle successful IQ result System.out.println("IQ result received: " + id); } else if ("set".equals(type)) { // Handle IQ set (Jingle session initiation) handleJingleSession(iq); } } private void handleJingleSession(JsonObject jingleIQ) { // Handle WebRTC session initiation via Jingle System.out.println("Jingle session initiated"); // Extract SDP offer and ICE candidates JsonObject jingle = jingleIQ.getJsonObject("jingle"); if (jingle != null) { String action = jingle.getString("action", ""); String sid = jingle.getString("sid", ""); if ("session-initiate".equals(action)) { // Create and send SDP answer sendSDPAnswer(sid); } } } private void sendSDPAnswer(String sessionId) { // Simulate SDP answer creation JsonObjectBuilder sdpAnswer = Json.createObjectBuilder() .add("type", "iq") .add("to", roomName + "@conference." + jitsiDomain + "/focus") .add("type", "set") .add("id", "sdp_answer_" + System.currentTimeMillis()) .add("jingle", Json.createObjectBuilder() .add("xmlns", "urn:xmpp:jingle:1") .add("action", "session-accept") .add("sid", sessionId) .add("contents", Json.createArrayBuilder() .add(Json.createObjectBuilder() .add("name", "audio") .add("creator", "initiator") .add("description", Json.createObjectBuilder() .add("xmlns", "urn:xmpp:jingle:apps:rtp:1") .add("media", "audio")) ) ) ); sendJsonMessage(sdpAnswer.build().toString()); } private void handleBridgeMessage(JsonObject bridgeMessage) { // Handle messages from Jitsi Videobridge String colibriClass = bridgeMessage.getString("colibriClass", ""); switch (colibriClass) { case "EndpointConnectedEvent": System.out.println("Endpoint connected to bridge"); break; case "EndpointMessage": handleEndpointMessage(bridgeMessage); break; case "LastNEndpointsChangeEvent": handleLastNChange(bridgeMessage); break; default: System.out.println("Unknown bridge message: " + colibriClass); } } private void handleEndpointMessage(JsonObject endpointMsg) { // Handle messages from other participants String from = endpointMsg.getString("from", ""); JsonObject data = endpointMsg.getJsonObject("data"); if (data != null) { System.out.println("Message from " + from + ": " + data); } } private void handleLastNChange(JsonObject lastNMsg) { // Handle changes in forwarded video streams JsonArray endpoints = lastNMsg.getJsonArray("lastNEndpoints"); System.out.println("Active video endpoints: " + endpoints); } private void sendXMPPStanza(String stanza) { if (connected && webSocketClient != null) { webSocketClient.send(stanza); } } private void sendJsonMessage(String jsonMessage) { if (connected && webSocketClient != null) { webSocketClient.send(jsonMessage); } } private String createPresenceStanza() { return "<presence from='" + participantId + "@" + jitsiDomain + "/" + generateResource() + "' to='" + roomName + "@conference." + jitsiDomain + "/" + participantId + "' xmlns='jabber:client'/>"; } private String createJoinRoomStanza() { return "<iq type='set' id='join_room_1' from='" + participantId + "@" + jitsiDomain + "/" + generateResource() + "' to='" + roomName + "@conference." + jitsiDomain + "' xmlns='jabber:client'><query xmlns='http://jabber.org/protocol/muc#owner'>" + "<x xmlns='jabber:x:data' type='submit'></x></query></iq>"; } public void sendChatMessage(String message) { JsonObjectBuilder chatMsg = Json.createObjectBuilder() .add("type", "message") .add("to", roomName + "@conference." + jitsiDomain) .add("body", message) .add("subject", "chat"); sendJsonMessage(chatMsg.build().toString()); } public void setAudioMute(boolean muted) { JsonObjectBuilder audioControl = Json.createObjectBuilder() .add("type", "message") .add("to", roomName + "@conference." + jitsiDomain) .add("subject", "audioMute") .add("muted", muted); sendJsonMessage(audioControl.build().toString()); } public void setVideoMute(boolean muted) { JsonObjectBuilder videoControl = Json.createObjectBuilder() .add("type", "message") .add("to", roomName + "@conference." + jitsiDomain) .add("subject", "videoMute") .add("muted", muted); sendJsonMessage(videoControl.build().toString()); } public void disconnect() { if (webSocketClient != null) { webSocketClient.close(); } scheduler.shutdown(); connected = false; } private String generateParticipantId() { return "java-client-" + UUID.randomUUID().toString().substring(0, 8); } private String generateResource() { return "java" + System.currentTimeMillis(); } public boolean isConnected() { return connected; } public static void main(String[] args) { JitsiWebRTCClient client = new JitsiWebRTCClient("meet.jit.si", "TestJavaRoom"); client.connect().thenAccept(success -> { if (success) { System.out.println("Successfully connected to Jitsi room"); // Send a test chat message after 5 seconds client.scheduler.schedule(() -> { client.sendChatMessage("Hello from Java client!"); client.setAudioMute(false); client.setVideoMute(false); }, 5, TimeUnit.SECONDS); // Disconnect after 30 seconds for demo client.scheduler.schedule(client::disconnect, 30, TimeUnit.SECONDS); } else { System.err.println("Failed to connect to Jitsi room"); } }).exceptionally(throwable -> { System.err.println("Connection error: " + throwable.getMessage()); return null; }); // Keep the program running try { Thread.sleep(35000); } catch (InterruptedException e) { Thread.currentThread().interrupt(); } } }

Approach 3: JVB REST API Client

Example 3: Jitsi Videobridge REST API Client

import com.fasterxml.jackson.databind.ObjectMapper; import org.apache.hc.client5.http.classic.methods.HttpGet; import org.apache.hc.client5.http.classic.methods.HttpPost; import org.apache.hc.client5.http.classic.methods.HttpDelete; import org.apache.hc.client5.http.entity.StringEntity; import org.apache.hc.client5.http.impl.classic.CloseableHttpClient; import org.apache.hc.client5.http.impl.classic.CloseableHttpResponse; import org.apache.hc.client5.http.impl.classic.HttpClients; import org.apache.hc.core5.http.io.entity.EntityUtils; import java.util.*; public class JVBClient { private final String jvbBaseUrl; private final CloseableHttpClient httpClient; private final ObjectMapper objectMapper; public JVBClient(String jvbHost, int jvbPort) { this.jvbBaseUrl = "http://" + jvbHost + ":" + jvbPort; this.httpClient = HttpClients.createDefault(); this.objectMapper = new ObjectMapper(); } public static class Conference { public String id; public String name; public List<Participant> participants; public Map<String, Object> stats; public Conference(String id, String name) { this.id = id; this.name = name; this.participants = new ArrayList<>(); this.stats = new HashMap<>(); } } public static class Participant { public String id; public String endpoint; public Map<String, Object> stats; public Map<String, Object> channels; public Participant(String id, String endpoint) { this.id = id; this.endpoint = endpoint; this.stats = new HashMap<>(); this.channels = new HashMap<>(); } } public Map<String, Object> getJVBStatistics() throws Exception { HttpGet request = new HttpGet(jvbBaseUrl + "/colibri/stats"); try (CloseableHttpResponse response = httpClient.execute(request)) { if (response.getCode() == 200) { String responseBody = EntityUtils.toString(response.getEntity()); return objectMapper.readValue(responseBody, Map.class); } else { throw new RuntimeException("Failed to get JVB stats: " + response.getCode()); } } } public List<Conference> getActiveConferences() throws Exception { HttpGet request = new HttpGet(jvbBaseUrl + "/colibri/conferences"); try (CloseableHttpResponse response = httpClient.execute(request)) { if (response.getCode() == 200) { String responseBody = EntityUtils.toString(response.getEntity()); Map<String, Object> conferencesData = objectMapper.readValue(responseBody, Map.class); return parseConferences(conferencesData); } else { throw new RuntimeException("Failed to get conferences: " + response.getCode()); } } } public Conference createConference(String conferenceId) throws Exception { Map<String, Object> conferenceRequest = new HashMap<>(); conferenceRequest.put("id", conferenceId); conferenceRequest.put("contents", Collections.emptyList()); String requestBody = objectMapper.writeValueAsString(conferenceRequest); HttpPost request = new HttpPost(jvbBaseUrl + "/colibri/conferences"); request.setEntity(new StringEntity(requestBody)); request.setHeader("Content-Type", "application/json"); try (CloseableHttpResponse response = httpClient.execute(request)) { if (response.getCode() == 200 || response.getCode() == 201) { String responseBody = EntityUtils.toString(response.getEntity()); Map<String, Object> conferenceData = objectMapper.readValue(responseBody, Map.class); return parseConference(conferenceData); } else { throw new RuntimeException("Failed to create conference: " + response.getCode()); } } } public boolean shutdownConference(String conferenceId) throws Exception { HttpDelete request = new HttpDelete(jvbBaseUrl + "/colibri/conferences/" + conferenceId); try (CloseableHttpResponse response = httpClient.execute(request)) { return response.getCode() == 200; } } public Map<String, Object> getParticipantStats(String conferenceId, String participantId) throws Exception { HttpGet request = new HttpGet(jvbBaseUrl + "/colibri/conferences/" + conferenceId + "/participants/" + participantId + "/stats"); try (CloseableHttpResponse response = httpClient.execute(request)) { if (response.getCode() == 200) { String responseBody = EntityUtils.toString(response.getEntity()); return objectMapper.readValue(responseBody, Map.class); } else { throw new RuntimeException("Failed to get participant stats: " + response.getCode()); } } } public boolean healthCheck() throws Exception { HttpGet request = new HttpGet(jvbBaseUrl + "/about/health"); try (CloseableHttpResponse response = httpClient.execute(request)) { return response.getCode() == 200; } } public Map<String, Object> getVersion() throws Exception { HttpGet request = new HttpGet(jvbBaseUrl + "/about/version"); try (CloseableHttpResponse response = httpClient.execute(request)) { if (response.getCode() == 200) { String responseBody = EntityUtils.toString(response.getEntity()); return objectMapper.readValue(responseBody, Map.class); } else { throw new RuntimeException("Failed to get version: " + response.getCode()); } } } private List<Conference> parseConferences(Map<String, Object> conferencesData) { List<Conference> conferences = new ArrayList<>(); if (conferencesData.containsKey("conferences")) { @SuppressWarnings("unchecked") List<Map<String, Object>> conferencesList = (List<Map<String, Object>>) conferencesData.get("conferences"); for (Map<String, Object> confData : conferencesList) { Conference conference = parseConference(confData); conferences.add(conference); } } return conferences; } private Conference parseConference(Map<String, Object> conferenceData) { String conferenceId = (String) conferenceData.get("id"); Conference conference = new Conference(conferenceId, conferenceId); // Parse participants if (conferenceData.containsKey("contents")) { @SuppressWarnings("unchecked") List<Map<String, Object>> contents = (List<Map<String, Object>>) conferenceData.get("contents"); for (Map<String, Object> content : contents) { if ("participant".equals(content.get("name"))) { parseParticipants(content, conference); } } } // Parse statistics if (conferenceData.containsKey("stats")) { @SuppressWarnings("unchecked") Map<String, Object> stats = (Map<String, Object>) conferenceData.get("stats"); conference.stats.putAll(stats); } return conference; } private void parseParticipants(Map<String, Object> content, Conference conference) { if (content.containsKey("channels")) { @SuppressWarnings("unchecked") List<Map<String, Object>> channels = (List<Map<String, Object>>) content.get("channels"); for (Map<String, Object> channel : channels) { String participantId = (String) channel.get("endpoint"); Participant participant = findOrCreateParticipant(conference, participantId); // Add channel info String channelType = (String) channel.get("channel-bundle-id"); participant.channels.put(channelType, channel); } } } private Participant findOrCreateParticipant(Conference conference, String participantId) { return conference.participants.stream() .filter(p -> p.id.equals(participantId)) .findFirst() .orElseGet(() -> { Participant newParticipant = new Participant(participantId, participantId); conference.participants.add(newParticipant); return newParticipant; }); } public static void main(String[] args) { try { // Connect to local JVB instance (default port 8080) JVBClient jvbClient = new JVBClient("localhost", 8080); // Health check boolean healthy = jvbClient.healthCheck(); System.out.println("JVB Health: " + (healthy ? "OK" : "UNHEALTHY")); if (healthy) { // Get version info Map<String, Object> version = jvbClient.getVersion(); System.out.println("JVB Version: " + version); // Get statistics Map<String, Object> stats = jvbClient.getJVBStatistics(); System.out.println("JVB Statistics: " + stats); // Get active conferences List<Conference> conferences = jvbClient.getActiveConferences(); System.out.println("Active conferences: " + conferences.size()); for (Conference conf : conferences) { System.out.println("Conference: " + conf.id + " Participants: " + conf.participants.size()); } // Create a test conference String testConfId = "test-conference-" + System.currentTimeMillis(); Conference newConference = jvbClient.createConference(testConfId); System.out.println("Created conference: " + newConference.id); // Clean up jvbClient.shutdownConference(testConfId); System.out.println("Conference shutdown: " + testConfId); } } catch (Exception e) { e.printStackTrace(); } } }

Approach 4: Complete Jitsi Client Application

Example 4: Integrated Jitsi Client with GUI

import javax.swing.*; import java.awt.*; import java.awt.event.ActionEvent; import java.util.concurrent.Executors; import java.util.concurrent.ScheduledExecutorService; import java.util.concurrent.TimeUnit; public class JitsiClientApplication extends JFrame { private JitsiWebRTCClient jitsiClient; private JVBClient jvbAdminClient; private ScheduledExecutorService scheduler; // UI Components private JTextArea logArea; private JTextField roomField; private JTextField domainField; private JButton connectButton; private JButton disconnectButton; private JButton muteAudioButton; private JButton muteVideoButton; private JButton sendMessageButton; private JTextField messageField; public JitsiClientApplication() { initializeUI(); scheduler = Executors.newScheduledThreadPool(2); } private void initializeUI() { setTitle("Jitsi Java Client"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setLayout(new BorderLayout()); // Control panel JPanel controlPanel = new JPanel(new GridBagLayout()); GridBagConstraints gbc = new GridBagConstraints(); gbc.fill = GridBagConstraints.HORIZONTAL; gbc.insets = new Insets(5, 5, 5, 5); gbc.gridx = 0; gbc.gridy = 0; controlPanel.add(new JLabel("Domain:"), gbc); gbc.gridx = 1; domainField = new JTextField("meet.jit.si", 15); controlPanel.add(domainField, gbc); gbc.gridx = 0; gbc.gridy = 1; controlPanel.add(new JLabel("Room:"), gbc); gbc.gridx = 1; roomField = new JTextField("JavaClientTest", 15); controlPanel.add(roomField, gbc); gbc.gridx = 0; gbc.gridy = 2; gbc.gridwidth = 2; connectButton = new JButton("Connect"); connectButton.addActionListener(this::connectToRoom); controlPanel.add(connectButton, gbc); gbc.gridy = 3; disconnectButton = new JButton("Disconnect"); disconnectButton.addActionListener(e -> disconnectFromRoom()); disconnectButton.setEnabled(false); controlPanel.add(disconnectButton, gbc); // Media controls gbc.gridy = 4; JPanel mediaPanel = new JPanel(new FlowLayout()); muteAudioButton = new JButton("Mute Audio"); muteVideoButton = new JButton("Mute Video"); muteAudioButton.addActionListener(e -> toggleAudioMute()); muteVideoButton.addActionListener(e -> toggleVideoMute()); muteAudioButton.setEnabled(false); muteVideoButton.setEnabled(false); mediaPanel.add(muteAudioButton); mediaPanel.add(muteVideoButton); controlPanel.add(mediaPanel, gbc); // Chat panel gbc.gridy = 5; JPanel chatPanel = new JPanel(new BorderLayout()); messageField = new JTextField(); sendMessageButton = new JButton("Send"); sendMessageButton.addActionListener(e -> sendChatMessage()); sendMessageButton.setEnabled(false); chatPanel.add(new JLabel("Message:"), BorderLayout.WEST); chatPanel.add(messageField, BorderLayout.CENTER); chatPanel.add(sendMessageButton, BorderLayout.EAST); controlPanel.add(chatPanel, gbc); add(controlPanel, BorderLayout.NORTH); // Log area logArea = new JTextArea(20, 50); logArea.setEditable(false); logArea.setBackground(Color.BLACK); logArea.setForeground(Color.GREEN); logArea.setFont(new Font("Monospaced", Font.PLAIN, 12)); add(new JScrollPane(logArea), BorderLayout.CENTER); pack(); setLocationRelativeTo(null); } private void connectToRoom(ActionEvent e) { String domain = domainField.getText().trim(); String room = roomField.getText().trim(); if (domain.isEmpty() || room.isEmpty()) { log("Please enter both domain and room name"); return; } log("Connecting to room: " + room + " on domain: " + domain); // Initialize clients jitsiClient = new JitsiWebRTCClient(domain, room); jvbAdminClient = new JVBClient("localhost", 8080); // For monitoring connectButton.setEnabled(false); jitsiClient.connect().thenAccept(success -> { if (success) { SwingUtilities.invokeLater(() -> { log("Successfully connected to Jitsi room"); disconnectButton.setEnabled(true); muteAudioButton.setEnabled(true); muteVideoButton.setEnabled(true); sendMessageButton.setEnabled(true); // Start monitoring startMonitoring(); }); } else { SwingUtilities.invokeLater(() -> { log("Failed to connect to Jitsi room"); connectButton.setEnabled(true); }); } }).exceptionally(throwable -> { SwingUtilities.invokeLater(() -> { log("Connection error: " + throwable.getMessage()); connectButton.setEnabled(true); }); return null; }); } private void disconnectFromRoom() { if (jitsiClient != null) { jitsiClient.disconnect(); log("Disconnected from Jitsi room"); } connectButton.setEnabled(true); disconnectButton.setEnabled(false); muteAudioButton.setEnabled(false); muteVideoButton.setEnabled(false); sendMessageButton.setEnabled(false); } private void toggleAudioMute() { if (jitsiClient != null) { // Toggle audio mute state boolean currentlyMuted = muteAudioButton.getText().contains("Unmute"); jitsiClient.setAudioMute(!currentlyMuted); if (currentlyMuted) { muteAudioButton.setText("Mute Audio"); log("Audio unmuted"); } else { muteAudioButton.setText("Unmute Audio"); log("Audio muted"); } } } private void toggleVideoMute() { if (jitsiClient != null) { // Toggle video mute state boolean currentlyMuted = muteVideoButton.getText().contains("Unmute"); jitsiClient.setVideoMute(!currentlyMuted); if (currentlyMuted) { muteVideoButton.setText("Mute Video"); log("Video unmuted"); } else { muteVideoButton.setText("Unmute Video"); log("Video muted"); } } } private void sendChatMessage() { String message = messageField.getText().trim(); if (!message.isEmpty() && jitsiClient != null) { jitsiClient.sendChatMessage(message); log("Sent message: " + message); messageField.setText(""); } } private void startMonitoring() { // Monitor JVB statistics periodically scheduler.scheduleAtFixedRate(() -> { if (jvbAdminClient != null) { try { boolean healthy = jvbAdminClient.healthCheck(); if (!healthy) { log("WARNING: JVB health check failed"); } } catch (Exception e) { log("Error checking JVB health: " + e.getMessage()); } } }, 10, 30, TimeUnit.SECONDS); } private void log(String message) { SwingUtilities.invokeLater(() -> { String timestamp = java.time.LocalTime.now().format( java.time.format.DateTimeFormatter.ofPattern("HH:mm:ss")); logArea.append("[" + timestamp + "] " + message + "\n"); logArea.setCaretPosition(logArea.getDocument().getLength()); }); } public static void main(String[] args) { SwingUtilities.invokeLater(() -> { try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeel()); } catch (Exception e) { e.printStackTrace(); } new JitsiClientApplication().setVisible(true); }); } }

Key Features and Best Practices

Security Considerations

import javax.net.ssl.*; import java.security.cert.X509Certificate; public class JitsiSecurityConfig { public static SSLSocketFactory createLenientSSLSocketFactory() throws Exception { // WARNING: This creates a trust manager that doesn't validate certificates // Only use for testing or with proper certificate validation in production TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() { public X509Certificate[] getAcceptedIssuers() { return new X509Certificate[0]; } public void checkClientTrusted(X509Certificate[] certs, String authType) {} public void checkServerTrusted(X509Certificate[] certs, String authType) {} } }; SSLContext sc = SSLContext.getInstance("SSL"); sc.init(null, trustAllCerts, new java.security.SecureRandom()); return sc.getSocketFactory(); } public static void configureSecureWebSocket() { // Configure WebSocket client with proper SSL context System.setProperty("org.java_websocket.client.sslContext", "custom SSL context configuration"); } }

Error Handling and Reconnection

public class JitsiReconnectionManager { private final JitsiWebRTCClient client; private final ScheduledExecutorService scheduler; private int reconnectAttempts = 0; private final int maxReconnectAttempts = 5; public JitsiReconnectionManager(JitsiWebRTCClient client) { this.client = client; this.scheduler = Executors.newScheduledThreadPool(1); } public void scheduleReconnection() { if (reconnectAttempts < maxReconnectAttempts) { long delay = calculateReconnectionDelay(reconnectAttempts); reconnectAttempts++; scheduler.schedule(() -> { System.out.println("Attempting reconnection (" + reconnectAttempts + "/" + maxReconnectAttempts + ")..."); client.connect().thenAccept(success -> { if (success) { System.out.println("Reconnection successful"); reconnectAttempts = 0; } else { scheduleReconnection(); } }); }, delay, TimeUnit.SECONDS); } else { System.err.println("Maximum reconnection attempts reached"); } } private long calculateReconnectionDelay(int attempt) { // Exponential backoff with jitter long baseDelay = Math.min(30, (long) Math.pow(2, attempt)); long jitter = (long) (Math.random() * 1000); return baseDelay + jitter / 1000; } public void shutdown() { scheduler.shutdown(); } }

Conclusion

This comprehensive Jitsi Videobridge client implementation provides:

Conference Management - Create and manage Jitsi meetings
WebRTC Integration - Real-time audio/video communication
REST API Client - Monitor and control JVB instances
GUI Application - User-friendly interface for participation
Error Handling - Robust connection management and reconnection

Key considerations for production use:

Security: Implement proper SSL certificate validation
Scalability: Use connection pooling for multiple conferences
Monitoring: Implement health checks and metrics collection
Error Recovery: Handle network failures and reconnections gracefully
Compliance: Ensure data privacy and regulatory compliance

The examples provide a solid foundation for building custom Jitsi Videobridge clients in Java, from simple conference management to full-featured video conferencing applications.