Java PacketInterceptor类代码示例

import org.jivesoftware.smack.PacketInterceptor; //导入依赖的package包/类
/**
 * Leave the chat room.
 */
public synchronized void leave() {
    // If not joined already, do nothing.
    if (!joined) {
        return;
    }
    // We leave a room by sending a presence packet where the "to"
    // field is in the form "[email protected]/nickname"
    Presence leavePresence = new Presence(Presence.Type.unavailable);
    leavePresence.setTo(room + "/" + nickname);
    // Invoke presence interceptors so that extra information can be dynamically added
    for (PacketInterceptor packetInterceptor : presenceInterceptors) {
        packetInterceptor.interceptPacket(leavePresence);
    }
    connection.sendPacket(leavePresence);
    // Reset occupant information.
    occupantsMap.clear();
    nickname = null;
    joined = false;
    userHasLeft();
}
 

import org.jivesoftware.smack.PacketInterceptor; //导入依赖的package包/类
/**
 * Changes the occupant's availability status within the room. The presence type
 * will remain available but with a new status that describes the presence update and
 * a new presence mode (e.g. Extended away).
 *
 * @param status a text message describing the presence update.
 * @param mode the mode type for the presence update.
 */
public void changeAvailabilityStatus(String status, Presence.Mode mode) {
    if (nickname == null || nickname.equals("")) {
        throw new IllegalArgumentException("Nickname must not be null or blank.");
    }
    // Check that we already have joined the room before attempting to change the
    // availability status.
    if (!joined) {
        throw new IllegalStateException(
            "Must be logged into the room to change the " + "availability status.");
    }
    // We change the availability status by sending a presence packet to the room with the
    // new presence status and mode
    Presence joinPresence = new Presence(Presence.Type.available);
    joinPresence.setStatus(status);
    joinPresence.setMode(mode);
    joinPresence.setTo(room + "/" + nickname);
    // Invoke presence interceptors so that extra information can be dynamically added
    for (PacketInterceptor packetInterceptor : presenceInterceptors) {
        packetInterceptor.interceptPacket(joinPresence);
    }

    // Send join packet.
    connection.sendPacket(joinPresence);
}
 

import org.jivesoftware.smack.PacketInterceptor; //导入依赖的package包/类
/**
 * Leave the chat room.
 */
public synchronized void leave() {
	// If not joined already, do nothing.
	if (!joined) {
		return;
	}
	// We leave a room by sending a presence packet where the "to"
	// field is in the form "[email protected]/nickname"
	Presence leavePresence = new Presence(Presence.Type.unavailable);
	leavePresence.setTo(room + "/" + nickname);
	// Invoke presence interceptors so that extra information can be
	// dynamically added
	for (PacketInterceptor packetInterceptor : presenceInterceptors) {
		packetInterceptor.interceptPacket(leavePresence);
	}
	connection.sendPacket(leavePresence);
	// Reset occupant information.
	occupantsMap.clear();
	nickname = null;
	joined = false;
	userHasLeft();
}
 

import org.jivesoftware.smack.PacketInterceptor; //导入依赖的package包/类
/**
 * Changes the occupant's availability status within the room. The presence
 * type will remain available but with a new status that describes the
 * presence update and a new presence mode (e.g. Extended away).
 * 
 * @param status
 *            a text message describing the presence update.
 * @param mode
 *            the mode type for the presence update.
 */
public void changeAvailabilityStatus(String status, Presence.Mode mode) {
	if (nickname == null || nickname.equals("")) {
		throw new IllegalArgumentException(
				"Nickname must not be null or blank.");
	}
	// Check that we already have joined the room before attempting to
	// change the
	// availability status.
	if (!joined) {
		throw new IllegalStateException(
				"Must be logged into the room to change the "
						+ "availability status.");
	}
	// We change the availability status by sending a presence packet to the
	// room with the
	// new presence status and mode
	Presence joinPresence = new Presence(Presence.Type.available);
	joinPresence.setStatus(status);
	joinPresence.setMode(mode);
	joinPresence.setTo(room + "/" + nickname);
	// Invoke presence interceptors so that extra information can be
	// dynamically added
	for (PacketInterceptor packetInterceptor : presenceInterceptors) {
		packetInterceptor.interceptPacket(joinPresence);
	}

	// Send join packet.
	connection.sendPacket(joinPresence);
}
 

import org.jivesoftware.smack.PacketInterceptor; //导入依赖的package包/类
@Before
public void setUp() throws Exception {
    connection = createMock(MyXMPPConnection.class);
    connectionListenerCapture = new Capture<ConnectionListener>();
    interceptorCapture = new Capture<PacketInterceptor>();
    listenerCapture = new Capture<PacketListener>();
    packetCapture = new Capture<Packet>(CaptureType.ALL);

    connection.addConnectionListener(capture(connectionListenerCapture));
    expectLastCall().anyTimes();
    connection.addPacketListener(capture(listenerCapture), anyObject(PacketFilter.class));
    expectLastCall().anyTimes();
    connection.addPacketInterceptor(capture(interceptorCapture), anyObject(PacketFilter.class));
    expectLastCall().anyTimes();
    connection.sendPacket(capture(packetCapture));
    expectLastCall().anyTimes();
    
    Roster roster = createNiceMock(Roster.class);
    expect(connection.getRoster()).andStubReturn(roster);
    
    replay(connection, roster);
    handler = new XmppStreamHandler(connection);
    // Set max queue size to 10 and acks at 10/2 = 5
    handler.setMaxOutgoingQueueSize(10);
    listener = listenerCapture.getValue();
    interceptor = interceptorCapture.getValue();
}
 

import org.jivesoftware.smack.PacketInterceptor; //导入依赖的package包/类
/**
 * Creates the room according to some default configuration, assign the requesting user
 * as the room owner, and add the owner to the room but not allow anyone else to enter
 * the room (effectively "locking" the room). The requesting user will join the room
 * under the specified nickname as soon as the room has been created.<p>
 *
 * To create an "Instant Room", that means a room with some default configuration that is
 * available for immediate access, the room's owner should send an empty form after creating
 * the room. {@link #sendConfigurationForm(Form)}<p>
 *
 * To create a "Reserved Room", that means a room manually configured by the room creator
 * before anyone is allowed to enter, the room's owner should complete and send a form after
 * creating the room. Once the completed configutation form is sent to the server, the server
 * will unlock the room. {@link #sendConfigurationForm(Form)}
 *
 * @param nickname the nickname to use.
 * @throws XMPPException if the room couldn't be created for some reason
 *          (e.g. room already exists; user already joined to an existant room or
 *          405 error if the user is not allowed to create the room)
 */
public synchronized void create(String nickname) throws XMPPException {
    if (nickname == null || nickname.equals("")) {
        throw new IllegalArgumentException("Nickname must not be null or blank.");
    }
    // If we've already joined the room, leave it before joining under a new
    // nickname.
    if (joined) {
        throw new IllegalStateException("Creation failed - User already joined the room.");
    }
    // We create a room by sending a presence packet to [email protected]e/nick
    // and signal support for MUC. The owner will be automatically logged into the room.
    Presence joinPresence = new Presence(Presence.Type.available);
    joinPresence.setTo(room + "/" + nickname);
    // Indicate the the client supports MUC
    joinPresence.addExtension(new MUCInitialPresence());
    // Invoke presence interceptors so that extra information can be dynamically added
    for (PacketInterceptor packetInterceptor : presenceInterceptors) {
        packetInterceptor.interceptPacket(joinPresence);
    }

    // Wait for a presence packet back from the server.
    PacketFilter responseFilter =
        new AndFilter(
            new FromMatchesFilter(room + "/" + nickname),
            new PacketTypeFilter(Presence.class));
    PacketCollector response = connection.createPacketCollector(responseFilter);
    // Send create & join packet.
    connection.sendPacket(joinPresence);
    // Wait up to a certain number of seconds for a reply.
    Presence presence =
        (Presence) response.nextResult(SmackConfiguration.getPacketReplyTimeout());
    // Stop queuing results
    response.cancel();

    if (presence == null) {
        throw new XMPPException("No response from server.");
    }
    else if (presence.getError() != null) {
        throw new XMPPException(presence.getError());
    }
    // Whether the room existed before or was created, the user has joined the room
    this.nickname = nickname;
    joined = true;
    userHasJoined();

    // Look for confirmation of room creation from the server
    MUCUser mucUser = getMUCUserExtension(presence);
    if (mucUser != null && mucUser.getStatus() != null) {
        if ("201".equals(mucUser.getStatus().getCode())) {
            // Room was created and the user has joined the room
            return;
        }
    }
    // We need to leave the room since it seems that the room already existed
    leave();
    throw new XMPPException("Creation failed - Missing acknowledge of room creation.");
}
 

import org.jivesoftware.smack.PacketInterceptor; //导入依赖的package包/类
/**
 * Changes the occupant's nickname to a new nickname within the room. Each room occupant
 * will receive two presence packets. One of type "unavailable" for the old nickname and one
 * indicating availability for the new nickname. The unavailable presence will contain the new
 * nickname and an appropriate status code (namely 303) as extended presence information. The
 * status code 303 indicates that the occupant is changing his/her nickname.
 *
 * @param nickname the new nickname within the room.
 * @throws XMPPException if the new nickname is already in use by another occupant.
 */
public void changeNickname(String nickname) throws XMPPException {
    if (nickname == null || nickname.equals("")) {
        throw new IllegalArgumentException("Nickname must not be null or blank.");
    }
    // Check that we already have joined the room before attempting to change the
    // nickname.
    if (!joined) {
        throw new IllegalStateException("Must be logged into the room to change nickname.");
    }
    // We change the nickname by sending a presence packet where the "to"
    // field is in the form "[email protected]/nickname"
    // We don't have to signal the MUC support again
    Presence joinPresence = new Presence(Presence.Type.available);
    joinPresence.setTo(room + "/" + nickname);
    // Invoke presence interceptors so that extra information can be dynamically added
    for (PacketInterceptor packetInterceptor : presenceInterceptors) {
        packetInterceptor.interceptPacket(joinPresence);
    }

    // Wait for a presence packet back from the server.
    PacketFilter responseFilter =
        new AndFilter(
            new FromMatchesFilter(room + "/" + nickname),
            new PacketTypeFilter(Presence.class));
    PacketCollector response = connection.createPacketCollector(responseFilter);
    // Send join packet.
    connection.sendPacket(joinPresence);
    // Wait up to a certain number of seconds for a reply.
    Presence presence =
        (Presence) response.nextResult(SmackConfiguration.getPacketReplyTimeout());
    // Stop queuing results
    response.cancel();

    if (presence == null) {
        throw new XMPPException("No response from server.");
    }
    else if (presence.getError() != null) {
        throw new XMPPException(presence.getError());
    }
    this.nickname = nickname;
}
 

import org.jivesoftware.smack.PacketInterceptor; //导入依赖的package包/类
/**
 * Creates the room according to some default configuration, assign the requesting user
 * as the room owner, and add the owner to the room but not allow anyone else to enter
 * the room (effectively "locking" the room). The requesting user will join the room
 * under the specified nickname as soon as the room has been created.<p>
 *
 * To create an "Instant Room", that means a room with some default configuration that is
 * available for immediate access, the room's owner should send an empty form after creating
 * the room. {@link #sendConfigurationForm(Form)}<p>
 *
 * To create a "Reserved Room", that means a room manually configured by the room creator
 * before anyone is allowed to enter, the room's owner should complete and send a form after
 * creating the room. Once the completed configutation form is sent to the server, the server
 * will unlock the room. {@link #sendConfigurationForm(Form)}
 *
 * @param nickname the nickname to use.
 * @throws XMPPException if the room couldn't be created for some reason
 *          (e.g. room already exists; user already joined to an existant room or
 *          405 error if the user is not allowed to create the room)
 */
public synchronized void create(String nickname) throws XMPPException {
    if (nickname == null || nickname.equals("")) {
        throw new IllegalArgumentException("Nickname must not be null or blank.");
    }
    // If we've already joined the room, leave it before joining under a new
    // nickname.
    if (joined) {
        throw new IllegalStateException("Creation failed - User already joined the room.");
    }
    // We create a room by sending a presence packet to [email protected]/nick
    // and signal support for MUC. The owner will be automatically logged into the room.
    Presence joinPresence = new Presence(Presence.Type.available);
    joinPresence.setTo(room + "/" + nickname);
    // Indicate the the client supports MUC
    joinPresence.addExtension(new MUCInitialPresence());
    // Invoke presence interceptors so that extra information can be dynamically added
    for (PacketInterceptor packetInterceptor : presenceInterceptors) {
        packetInterceptor.interceptPacket(joinPresence);
    }

    // Wait for a presence packet back from the server.
    PacketFilter responseFilter =
        new AndFilter(
            new FromMatchesFilter(room + "/" + nickname),
            new PacketTypeFilter(Presence.class));
    PacketCollector response = connection.createPacketCollector(responseFilter);
    // Send create & join packet.
    connection.sendPacket(joinPresence);
    // Wait up to a certain number of seconds for a reply.
    Presence presence =
        (Presence) response.nextResult(SmackConfiguration.getPacketReplyTimeout());
    // Stop queuing results
    response.cancel();

    if (presence == null) {
        throw new XMPPException("No response from server.");
    }
    else if (presence.getError() != null) {
        throw new XMPPException(presence.getError());
    }
    // Whether the room existed before or was created, the user has joined the room
    this.nickname = nickname;
    joined = true;
    userHasJoined();

    // Look for confirmation of room creation from the server
    MUCUser mucUser = getMUCUserExtension(presence);
    if (mucUser != null && mucUser.getStatus() != null) {
        if ("201".equals(mucUser.getStatus().getCode())) {
            // Room was created and the user has joined the room
            return;
        }
    }
    // We need to leave the room since it seems that the room already existed
    leave();
    throw new XMPPException("Creation failed - Missing acknowledge of room creation.");
}
 

import org.jivesoftware.smack.PacketInterceptor; //导入依赖的package包/类
/**
 * Changes the occupant's nickname to a new nickname within the room. Each
 * room occupant will receive two presence packets. One of type
 * "unavailable" for the old nickname and one indicating availability for
 * the new nickname. The unavailable presence will contain the new nickname
 * and an appropriate status code (namely 303) as extended presence
 * information. The status code 303 indicates that the occupant is changing
 * his/her nickname.
 * 
 * @param nickname
 *            the new nickname within the room.
 * @throws XMPPException
 *             if the new nickname is already in use by another occupant.
 */
public void changeNickname(String nickname) throws XMPPException {
	if (nickname == null || nickname.equals("")) {
		throw new IllegalArgumentException(
				"Nickname must not be null or blank.");
	}
	// Check that we already have joined the room before attempting to
	// change the
	// nickname.
	if (!joined) {
		throw new IllegalStateException(
				"Must be logged into the room to change nickname.");
	}
	// We change the nickname by sending a presence packet where the "to"
	// field is in the form "[email protected]/nickname"
	// We don't have to signal the MUC support again
	Presence joinPresence = new Presence(Presence.Type.available);
	joinPresence.setTo(room + "/" + nickname);
	// Invoke presence interceptors so that extra information can be
	// dynamically added
	for (PacketInterceptor packetInterceptor : presenceInterceptors) {
		packetInterceptor.interceptPacket(joinPresence);
	}

	// Wait for a presence packet back from the server.
	PacketFilter responseFilter = new AndFilter(new FromMatchesFilter(room
			+ "/" + nickname), new PacketTypeFilter(Presence.class));
	PacketCollector response = connection
			.createPacketCollector(responseFilter);
	// Send join packet.
	connection.sendPacket(joinPresence);
	// Wait up to a certain number of seconds for a reply.
	Presence presence = (Presence) response.nextResult(SmackConfiguration
			.getPacketReplyTimeout());
	// Stop queuing results
	response.cancel();

	if (presence == null) {
		throw new XMPPException("No response from server.");
	} else if (presence.getError() != null) {
		throw new XMPPException(presence.getError());
	}
	this.nickname = nickname;
}
 

import org.jivesoftware.smack.PacketInterceptor; //导入依赖的package包/类
/**
 * Initialize VCardManager.
 */
public VCardManager() {
    // Initialize parser
    parser = new MXParser();

    try {
        parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, true);
    }
    catch (XmlPullParserException e) {
        Log.error(e);
    }

    imageFile = new File(SparkManager.getUserDirectory(), "personal.png");

    // Initialize vCard.
    personalVCard = new VCard();

    // Set VCard Storage
    vcardStorageDirectory = new File(SparkManager.getUserDirectory(), "vcards");
    vcardStorageDirectory.mkdirs();

    // Set the current user directory.
    contactsDir = new File(SparkManager.getUserDirectory(), "contacts");
    contactsDir.mkdirs();

    initializeUI();

    // Intercept all presence packets being sent and append vcard information.
    PacketFilter presenceFilter = new PacketTypeFilter(Presence.class);
    SparkManager.getConnection().addPacketInterceptor(new PacketInterceptor() {
        public void interceptPacket(Packet packet) {
            Presence newPresence = (Presence)packet;
            VCardUpdateExtension update = new VCardUpdateExtension();
            JabberAvatarExtension jax = new JabberAvatarExtension();

            PacketExtension updateExt = newPresence.getExtension(update.getElementName(), update.getNamespace());
            PacketExtension jabberExt = newPresence.getExtension(jax.getElementName(), jax.getNamespace());

            if (updateExt != null) {
                newPresence.removeExtension(updateExt);
            }

            if (jabberExt != null) {
                newPresence.removeExtension(jabberExt);
            }

            if (personalVCard != null) {
                byte[] bytes = personalVCard.getAvatar();
                if (bytes != null && bytes.length > 0) {
                    update.setPhotoHash(personalVCard.getAvatarHash());
                    jax.setPhotoHash(personalVCard.getAvatarHash());

                    newPresence.addExtension(update);
                    newPresence.addExtension(jax);
                }
            }
        }
    }, presenceFilter);

    editor = new VCardEditor();

    // Start Listener
    startQueueListener();
}
 

import org.jivesoftware.smack.PacketInterceptor; //导入依赖的package包/类
/**
 * Adds a new {@link PacketInterceptor} that will be invoked every time a new presence
 * is going to be sent by this MultiUserChat to the server. Packet interceptors may
 * add new extensions to the presence that is going to be sent to the MUC service.
 *
 * @param presenceInterceptor the new packet interceptor that will intercept presence packets.
 */
public void addPresenceInterceptor(PacketInterceptor presenceInterceptor) {
    presenceInterceptors.add(presenceInterceptor);
}
 

import org.jivesoftware.smack.PacketInterceptor; //导入依赖的package包/类
/**
 * Removes a {@link PacketInterceptor} that was being invoked every time a new presence
 * was being sent by this MultiUserChat to the server. Packet interceptors may
 * add new extensions to the presence that is going to be sent to the MUC service.
 *
 * @param presenceInterceptor the packet interceptor to remove.
 */
public void removePresenceInterceptor(PacketInterceptor presenceInterceptor) {
    presenceInterceptors.remove(presenceInterceptor);
}
 

import org.jivesoftware.smack.PacketInterceptor; //导入依赖的package包/类
/**
 * Adds a new {@link PacketInterceptor} that will be invoked every time a
 * new presence is going to be sent by this MultiUserChat to the server.
 * Packet interceptors may add new extensions to the presence that is going
 * to be sent to the MUC service.
 * 
 * @param presenceInterceptor
 *            the new packet interceptor that will intercept presence
 *            packets.
 */
public void addPresenceInterceptor(PacketInterceptor presenceInterceptor) {
	presenceInterceptors.add(presenceInterceptor);
}
 

import org.jivesoftware.smack.PacketInterceptor; //导入依赖的package包/类
/**
 * Removes a {@link PacketInterceptor} that was being invoked every time a
 * new presence was being sent by this MultiUserChat to the server. Packet
 * interceptors may add new extensions to the presence that is going to be
 * sent to the MUC service.
 * 
 * @param presenceInterceptor
 *            the packet interceptor to remove.
 */
public void removePresenceInterceptor(PacketInterceptor presenceInterceptor) {
	presenceInterceptors.remove(presenceInterceptor);
}