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Code Issues Releases Wiki Activity

Refactor Managers to subclass abstract Manager

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Also use ServiceDiscoveryManager.supportsFeature() where possible.
This commit is contained in:
Florian Schmaus 2014-03-09 11:19:44 +01:00
parent 93eea8ab8d
commit f7fc38e1f4
9 changed files with 105 additions and 162 deletions
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26
experimental/src/main/java/org/jivesoftware/smackx/carbons/CarbonManager.java
View file

@ -16,13 +16,13 @@
*/ */
package org.jivesoftware.smackx.carbons; package org.jivesoftware.smackx.carbons;
import java.lang.ref.WeakReference;
import java.util.Collections; import java.util.Collections;
import java.util.Map; import java.util.Map;
import java.util.WeakHashMap; import java.util.WeakHashMap;
import org.jivesoftware.smack.Connection; import org.jivesoftware.smack.Connection;
import org.jivesoftware.smack.ConnectionCreationListener; import org.jivesoftware.smack.ConnectionCreationListener;
import org.jivesoftware.smack.Manager;
import org.jivesoftware.smack.PacketListener; import org.jivesoftware.smack.PacketListener;
import org.jivesoftware.smack.XMPPException; import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.filter.IQReplyFilter; import org.jivesoftware.smack.filter.IQReplyFilter;
@ -31,7 +31,6 @@ import org.jivesoftware.smack.packet.Message;
import org.jivesoftware.smack.packet.Packet; import org.jivesoftware.smack.packet.Packet;
import org.jivesoftware.smackx.carbons.packet.CarbonExtension; import org.jivesoftware.smackx.carbons.packet.CarbonExtension;
import org.jivesoftware.smackx.disco.ServiceDiscoveryManager; import org.jivesoftware.smackx.disco.ServiceDiscoveryManager;
import org.jivesoftware.smackx.disco.packet.DiscoverInfo;
/** /**
* Packet extension for XEP-0280: Message Carbons. This class implements * Packet extension for XEP-0280: Message Carbons. This class implements
@ -43,7 +42,7 @@ import org.jivesoftware.smackx.disco.packet.DiscoverInfo;
* *
* @author Georg Lukas * @author Georg Lukas
*/ */
public class CarbonManager { public class CarbonManager extends Manager {
private static Map<Connection, CarbonManager> instances = private static Map<Connection, CarbonManager> instances =
Collections.synchronizedMap(new WeakHashMap<Connection, CarbonManager>()); Collections.synchronizedMap(new WeakHashMap<Connection, CarbonManager>());
@ -56,13 +55,12 @@ public class CarbonManager {
}); });
} }
private WeakReference<Connection> weakRefConnection;
private volatile boolean enabled_state = false; private volatile boolean enabled_state = false;
private CarbonManager(Connection connection) { private CarbonManager(Connection connection) {
super(connection);
ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection); ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection);
sdm.addFeature(CarbonExtension.NAMESPACE); sdm.addFeature(CarbonExtension.NAMESPACE);
weakRefConnection = new WeakReference<Connection>(connection);
instances.put(connection, this); instances.put(connection, this);
} }
@ -99,11 +97,9 @@ public class CarbonManager {
* @return true if supported * @return true if supported
*/ */
public boolean isSupportedByServer() { public boolean isSupportedByServer() {
Connection connection = weakRefConnection.get();
try { try {
DiscoverInfo result = ServiceDiscoveryManager return ServiceDiscoveryManager.getInstanceFor(connection()).supportsFeature(
.getInstanceFor(connection).discoverInfo(connection.getServiceName()); connection().getServiceName(), CarbonExtension.NAMESPACE);
return result.containsFeature(CarbonExtension.NAMESPACE);
} }
catch (XMPPException e) { catch (XMPPException e) {
return false; return false;
@ -119,20 +115,19 @@ public class CarbonManager {
* @param new_state whether carbons should be enabled or disabled * @param new_state whether carbons should be enabled or disabled
*/ */
public void sendCarbonsEnabled(final boolean new_state) { public void sendCarbonsEnabled(final boolean new_state) {
final Connection connection = weakRefConnection.get();
IQ setIQ = carbonsEnabledIQ(new_state); IQ setIQ = carbonsEnabledIQ(new_state);
connection.addPacketListener(new PacketListener() { connection().addPacketListener(new PacketListener() {
public void processPacket(Packet packet) { public void processPacket(Packet packet) {
IQ result = (IQ)packet; IQ result = (IQ)packet;
if (result.getType() == IQ.Type.RESULT) { if (result.getType() == IQ.Type.RESULT) {
enabled_state = new_state; enabled_state = new_state;
} }
connection.removePacketListener(this); connection().removePacketListener(this);
} }
}, new IQReplyFilter(setIQ, connection)); }, new IQReplyFilter(setIQ, connection()));
connection.sendPacket(setIQ); connection().sendPacket(setIQ);
} }
/** /**
@ -150,10 +145,9 @@ public class CarbonManager {
public void setCarbonsEnabled(final boolean new_state) throws XMPPException { public void setCarbonsEnabled(final boolean new_state) throws XMPPException {
if (enabled_state == new_state) return; if (enabled_state == new_state) return;
Connection connection = weakRefConnection.get();
IQ setIQ = carbonsEnabledIQ(new_state); IQ setIQ = carbonsEnabledIQ(new_state);
connection.createPacketCollectorAndSend(setIQ).nextResultOrThrow(); connection().createPacketCollectorAndSend(setIQ).nextResultOrThrow();
enabled_state = new_state; enabled_state = new_state;
} }

27
extensions/src/main/java/org/jivesoftware/smackx/caps/EntityCapsManager.java
View file

@ -1,6 +1,6 @@
/** /**
* *
* Copyright © 2009 Jonas Ådahl, 2011-2013 Florian Schmaus * Copyright © 2009 Jonas Ådahl, 2011-2014 Florian Schmaus
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. * you may not use this file except in compliance with the License.
@ -19,6 +19,7 @@ package org.jivesoftware.smackx.caps;
import org.jivesoftware.smack.Connection; import org.jivesoftware.smack.Connection;
import org.jivesoftware.smack.ConnectionCreationListener; import org.jivesoftware.smack.ConnectionCreationListener;
import org.jivesoftware.smack.ConnectionListener; import org.jivesoftware.smack.ConnectionListener;
import org.jivesoftware.smack.Manager;
import org.jivesoftware.smack.PacketInterceptor; import org.jivesoftware.smack.PacketInterceptor;
import org.jivesoftware.smack.PacketListener; import org.jivesoftware.smack.PacketListener;
import org.jivesoftware.smack.XMPPException; import org.jivesoftware.smack.XMPPException;
@ -58,7 +59,6 @@ import java.util.TreeSet;
import java.util.WeakHashMap; import java.util.WeakHashMap;
import java.util.concurrent.ConcurrentLinkedQueue; import java.util.concurrent.ConcurrentLinkedQueue;
import java.io.IOException; import java.io.IOException;
import java.lang.ref.WeakReference;
import java.security.MessageDigest; import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException; import java.security.NoSuchAlgorithmException;
@ -67,7 +67,7 @@ import java.security.NoSuchAlgorithmException;
* *
* @author Florian Schmaus * @author Florian Schmaus
*/ */
public class EntityCapsManager { public class EntityCapsManager extends Manager {
public static final String NAMESPACE = "http://jabber.org/protocol/caps"; public static final String NAMESPACE = "http://jabber.org/protocol/caps";
public static final String ELEMENT = "c"; public static final String ELEMENT = "c";
@ -110,7 +110,6 @@ public class EntityCapsManager {
} }
} }
private WeakReference<Connection> weakRefConnection;
private ServiceDiscoveryManager sdm; private ServiceDiscoveryManager sdm;
private boolean entityCapsEnabled; private boolean entityCapsEnabled;
private String currentCapsVersion; private String currentCapsVersion;
@ -221,7 +220,7 @@ public class EntityCapsManager {
} }
private EntityCapsManager(Connection connection) { private EntityCapsManager(Connection connection) {
this.weakRefConnection = new WeakReference<Connection>(connection); super(connection);
this.sdm = ServiceDiscoveryManager.getInstanceFor(connection); this.sdm = ServiceDiscoveryManager.getInstanceFor(connection);
instances.put(connection, this); instances.put(connection, this);
@ -384,16 +383,8 @@ public class EntityCapsManager {
* @param jid * @param jid
* @return * @return
*/ */
public boolean areEntityCapsSupported(String jid) { public boolean areEntityCapsSupported(String jid) throws XMPPException {
if (jid == null) return sdm.supportsFeature(jid, NAMESPACE);
return false;
try {
DiscoverInfo result = sdm.discoverInfo(jid);
return result.containsFeature(NAMESPACE);
} catch (XMPPException e) {
return false;
}
} }
/** /**
@ -401,8 +392,8 @@ public class EntityCapsManager {
* *
* @return * @return
*/ */
public boolean areEntityCapsSupportedByServer() { public boolean areEntityCapsSupportedByServer() throws XMPPException {
return areEntityCapsSupported(weakRefConnection.get().getServiceName()); return areEntityCapsSupported(connection().getServiceName());
} }
/** /**
@ -422,7 +413,7 @@ public class EntityCapsManager {
* the local users extended info * the local users extended info
*/ */
public void updateLocalEntityCaps() { public void updateLocalEntityCaps() {
Connection connection = weakRefConnection.get(); Connection connection = connection();
DiscoverInfo discoverInfo = new DiscoverInfo(); DiscoverInfo discoverInfo = new DiscoverInfo();
discoverInfo.setType(IQ.Type.RESULT); discoverInfo.setType(IQ.Type.RESULT);

54
extensions/src/main/java/org/jivesoftware/smackx/chatstates/ChatStateManager.java
View file

@ -17,13 +17,13 @@
package org.jivesoftware.smackx.chatstates; package org.jivesoftware.smackx.chatstates;
import java.lang.ref.WeakReference;
import java.util.Map; import java.util.Map;
import java.util.WeakHashMap; import java.util.WeakHashMap;
import org.jivesoftware.smack.Chat; import org.jivesoftware.smack.Chat;
import org.jivesoftware.smack.ChatManagerListener; import org.jivesoftware.smack.ChatManagerListener;
import org.jivesoftware.smack.Connection; import org.jivesoftware.smack.Connection;
import org.jivesoftware.smack.Manager;
import org.jivesoftware.smack.MessageListener; import org.jivesoftware.smack.MessageListener;
import org.jivesoftware.smack.PacketInterceptor; import org.jivesoftware.smack.PacketInterceptor;
import org.jivesoftware.smack.XMPPException; import org.jivesoftware.smack.XMPPException;
@ -50,13 +50,13 @@ import org.jivesoftware.smackx.disco.ServiceDiscoveryManager;
* @see org.jivesoftware.smackx.chatstates.ChatState * @see org.jivesoftware.smackx.chatstates.ChatState
* @see org.jivesoftware.smackx.chatstates.packet.ChatStateExtension * @see org.jivesoftware.smackx.chatstates.packet.ChatStateExtension
*/ */
public class ChatStateManager { public class ChatStateManager extends Manager {
public static final String NAMESPACE = "http://jabber.org/protocol/chatstates";
private static final Map<Connection, WeakReference<ChatStateManager>> managers = private static final Map<Connection, ChatStateManager> INSTANCES =
new WeakHashMap<Connection, WeakReference<ChatStateManager>>(); new WeakHashMap<Connection, ChatStateManager>();
private static final PacketFilter filter = new NotFilter( private static final PacketFilter filter = new NotFilter(new PacketExtensionFilter(NAMESPACE));
new PacketExtensionFilter("http://jabber.org/protocol/chatstates"));
/** /**
* Returns the ChatStateManager related to the Connection and it will create one if it does * Returns the ChatStateManager related to the Connection and it will create one if it does
@ -65,28 +65,14 @@ public class ChatStateManager {
* @param connection the connection to return the ChatStateManager * @param connection the connection to return the ChatStateManager
* @return the ChatStateManager related the the connection. * @return the ChatStateManager related the the connection.
*/ */
public static ChatStateManager getInstance(final Connection connection) { public static synchronized ChatStateManager getInstance(final Connection connection) {
if(connection == null) { ChatStateManager manager = INSTANCES.get(connection);
return null; if (manager == null) {
}
synchronized (managers) {
ChatStateManager manager;
WeakReference<ChatStateManager> ref = managers.get(connection);
if (ref == null) {
manager = new ChatStateManager(connection); manager = new ChatStateManager(connection);
manager.init();
managers.put(connection, new WeakReference<ChatStateManager>(manager));
} }
else
manager = ref.get();
return manager; return manager;
}
} }
private final Connection connection;
private final OutgoingMessageInterceptor outgoingInterceptor = new OutgoingMessageInterceptor(); private final OutgoingMessageInterceptor outgoingInterceptor = new OutgoingMessageInterceptor();
private final IncomingMessageInterceptor incomingInterceptor = new IncomingMessageInterceptor(); private final IncomingMessageInterceptor incomingInterceptor = new IncomingMessageInterceptor();
@ -98,18 +84,15 @@ public class ChatStateManager {
new ReferenceMap<Chat, ChatState>(ReferenceMap.WEAK, ReferenceMap.HARD); new ReferenceMap<Chat, ChatState>(ReferenceMap.WEAK, ReferenceMap.HARD);
private ChatStateManager(Connection connection) { private ChatStateManager(Connection connection) {
this.connection = connection; super(connection);
} connection.getChatManager().addOutgoingMessageInterceptor(outgoingInterceptor, filter);
private void init() {
connection.getChatManager().addOutgoingMessageInterceptor(outgoingInterceptor,
filter);
connection.getChatManager().addChatListener(incomingInterceptor); connection.getChatManager().addChatListener(incomingInterceptor);
ServiceDiscoveryManager.getInstanceFor(connection) ServiceDiscoveryManager.getInstanceFor(connection).addFeature(NAMESPACE);
.addFeature("http://jabber.org/protocol/chatstates"); INSTANCES.put(connection, this);
} }
/** /**
* Sets the current state of the provided chat. This method will send an empty bodied Message * Sets the current state of the provided chat. This method will send an empty bodied Message
* packet with the state attached as a {@link org.jivesoftware.smack.packet.PacketExtension}, if * packet with the state attached as a {@link org.jivesoftware.smack.packet.PacketExtension}, if
@ -142,12 +125,12 @@ public class ChatStateManager {
ChatStateManager that = (ChatStateManager) o; ChatStateManager that = (ChatStateManager) o;
return connection.equals(that.connection); return connection().equals(that.connection());
} }
public int hashCode() { public int hashCode() {
return connection.hashCode(); return connection().hashCode();
} }
private boolean updateChatState(Chat chat, ChatState newState) { private boolean updateChatState(Chat chat, ChatState newState) {
@ -171,7 +154,7 @@ public class ChatStateManager {
public void interceptPacket(Packet packet) { public void interceptPacket(Packet packet) {
Message message = (Message) packet; Message message = (Message) packet;
Chat chat = connection.getChatManager().getThreadChat(message.getThread()); Chat chat = connection().getChatManager().getThreadChat(message.getThread());
if (chat == null) { if (chat == null) {
return; return;
} }
@ -188,8 +171,7 @@ public class ChatStateManager {
} }
public void processMessage(Chat chat, Message message) { public void processMessage(Chat chat, Message message) {
PacketExtension extension PacketExtension extension = message.getExtension(NAMESPACE);
= message.getExtension("http://jabber.org/protocol/chatstates");
if (extension == null) { if (extension == null) {
return; return;
} }

34
extensions/src/main/java/org/jivesoftware/smackx/commands/AdHocCommandManager.java
View file

@ -35,7 +35,6 @@ import org.jivesoftware.smackx.disco.packet.DiscoverItems;
import org.jivesoftware.smackx.disco.packet.DiscoverInfo.Identity; import org.jivesoftware.smackx.disco.packet.DiscoverInfo.Identity;
import org.jivesoftware.smackx.xdata.Form; import org.jivesoftware.smackx.xdata.Form;
import java.lang.ref.WeakReference;
import java.util.ArrayList; import java.util.ArrayList;
import java.util.Collection; import java.util.Collection;
import java.util.Collections; import java.util.Collections;
@ -54,10 +53,8 @@ import java.util.concurrent.ConcurrentHashMap;
* *
* @author Gabriel Guardincerri * @author Gabriel Guardincerri
*/ */
public class AdHocCommandManager { public class AdHocCommandManager extends Manager {
private static final String DISCO_NAMESPACE = "http://jabber.org/protocol/commands"; public static final String NAMESPACE = "http://jabber.org/protocol/commands";
private static final String discoNode = DISCO_NAMESPACE;
/** /**
* The session time out in seconds. * The session time out in seconds.
@ -97,11 +94,6 @@ public class AdHocCommandManager {
return ahcm; return ahcm;
} }
/**
* The Connection that this instances of AdHocCommandManager manages
*/
private final WeakReference<Connection> connection;
/** /**
* Map a command node with its AdHocCommandInfo. Note: Key=command node, * Map a command node with its AdHocCommandInfo. Note: Key=command node,
* Value=command. Command node matches the node attribute sent by command * Value=command. Command node matches the node attribute sent by command
@ -125,7 +117,7 @@ public class AdHocCommandManager {
private Thread sessionsSweeper; private Thread sessionsSweeper;
private AdHocCommandManager(Connection connection) { private AdHocCommandManager(Connection connection) {
this.connection = new WeakReference<Connection>(connection); super(connection);
this.serviceDiscoveryManager = ServiceDiscoveryManager.getInstanceFor(connection); this.serviceDiscoveryManager = ServiceDiscoveryManager.getInstanceFor(connection);
// Register the new instance and associate it with the connection // Register the new instance and associate it with the connection
@ -136,13 +128,13 @@ public class AdHocCommandManager {
// This information will be used when another client tries to // This information will be used when another client tries to
// discover whether this client supports AdHoc-Commands or not. // discover whether this client supports AdHoc-Commands or not.
ServiceDiscoveryManager.getInstanceFor(connection).addFeature( ServiceDiscoveryManager.getInstanceFor(connection).addFeature(
DISCO_NAMESPACE); NAMESPACE);
// Set the NodeInformationProvider that will provide information about // Set the NodeInformationProvider that will provide information about
// which AdHoc-Commands are registered, whenever a disco request is // which AdHoc-Commands are registered, whenever a disco request is
// received // received
ServiceDiscoveryManager.getInstanceFor(connection) ServiceDiscoveryManager.getInstanceFor(connection)
.setNodeInformationProvider(discoNode, .setNodeInformationProvider(NAMESPACE,
new NodeInformationProvider() { new NodeInformationProvider() {
public List<DiscoverItems.Item> getNodeItems() { public List<DiscoverItems.Item> getNodeItems() {
@ -221,7 +213,7 @@ public class AdHocCommandManager {
* @param factory a factory to create new instances of the command. * @param factory a factory to create new instances of the command.
*/ */
public void registerCommand(String node, final String name, LocalCommandFactory factory) { public void registerCommand(String node, final String name, LocalCommandFactory factory) {
AdHocCommandInfo commandInfo = new AdHocCommandInfo(node, name, connection.get().getUser(), factory); AdHocCommandInfo commandInfo = new AdHocCommandInfo(node, name, connection().getUser(), factory);
commands.put(node, commandInfo); commands.put(node, commandInfo);
// Set the NodeInformationProvider that will provide information about // Set the NodeInformationProvider that will provide information about
@ -234,7 +226,7 @@ public class AdHocCommandManager {
public List<String> getNodeFeatures() { public List<String> getNodeFeatures() {
List<String> answer = new ArrayList<String>(); List<String> answer = new ArrayList<String>();
answer.add(DISCO_NAMESPACE); answer.add(NAMESPACE);
// TODO: check if this service is provided by the // TODO: check if this service is provided by the
// TODO: current connection. // TODO: current connection.
answer.add("jabber:x:data"); answer.add("jabber:x:data");
@ -266,7 +258,7 @@ public class AdHocCommandManager {
* @throws XMPPException if the operation failed for some reason. * @throws XMPPException if the operation failed for some reason.
*/ */
public DiscoverItems discoverCommands(String jid) throws XMPPException { public DiscoverItems discoverCommands(String jid) throws XMPPException {
return serviceDiscoveryManager.discoverItems(jid, discoNode); return serviceDiscoveryManager.discoverItems(jid, NAMESPACE);
} }
/** /**
@ -287,7 +279,7 @@ public class AdHocCommandManager {
discoverItems.addItem(item); discoverItems.addItem(item);
} }
serviceDiscoveryManager.publishItems(jid, discoNode, discoverItems); serviceDiscoveryManager.publishItems(jid, NAMESPACE, discoverItems);
} }
/** /**
@ -301,7 +293,7 @@ public class AdHocCommandManager {
* @return a local instance equivalent to the remote command. * @return a local instance equivalent to the remote command.
*/ */
public RemoteCommand getRemoteCommand(String jid, String node) { public RemoteCommand getRemoteCommand(String jid, String node) {
return new RemoteCommand(connection.get(), node, jid); return new RemoteCommand(connection(), node, jid);
} }
/** /**
@ -449,7 +441,7 @@ public class AdHocCommandManager {
} }
// Sends the response packet // Sends the response packet
connection.get().sendPacket(response); connection().sendPacket(response);
} }
catch (XMPPException e) { catch (XMPPException e) {
@ -564,7 +556,7 @@ public class AdHocCommandManager {
executingCommands.remove(sessionId); executingCommands.remove(sessionId);
} }
connection.get().sendPacket(response); connection().sendPacket(response);
} }
catch (XMPPException e) { catch (XMPPException e) {
// If there is an exception caused by the next, complete, // If there is an exception caused by the next, complete,
@ -620,7 +612,7 @@ public class AdHocCommandManager {
private void respondError(AdHocCommandData response, XMPPError error) { private void respondError(AdHocCommandData response, XMPPError error) {
response.setType(IQ.Type.ERROR); response.setType(IQ.Type.ERROR);
response.setError(error); response.setError(error);
connection.get().sendPacket(response); connection().sendPacket(response);
} }
/** /**

42
extensions/src/main/java/org/jivesoftware/smackx/disco/ServiceDiscoveryManager.java
View file

@ -17,7 +17,11 @@
package org.jivesoftware.smackx.disco; package org.jivesoftware.smackx.disco;
import org.jivesoftware.smack.*; import org.jivesoftware.smack.Connection;
import org.jivesoftware.smack.ConnectionCreationListener;
import org.jivesoftware.smack.Manager;
import org.jivesoftware.smack.PacketListener;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.filter.PacketFilter; import org.jivesoftware.smack.filter.PacketFilter;
import org.jivesoftware.smack.filter.PacketTypeFilter; import org.jivesoftware.smack.filter.PacketTypeFilter;
import org.jivesoftware.smack.packet.IQ; import org.jivesoftware.smack.packet.IQ;
@ -30,8 +34,15 @@ import org.jivesoftware.smackx.disco.packet.DiscoverItems;
import org.jivesoftware.smackx.disco.packet.DiscoverInfo.Identity; import org.jivesoftware.smackx.disco.packet.DiscoverInfo.Identity;
import org.jivesoftware.smackx.xdata.packet.DataForm; import org.jivesoftware.smackx.xdata.packet.DataForm;
import java.lang.ref.WeakReference; import java.util.ArrayList;
import java.util.*; import java.util.Collections;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.WeakHashMap;
import java.util.concurrent.ConcurrentHashMap; import java.util.concurrent.ConcurrentHashMap;
/** /**
@ -45,7 +56,7 @@ import java.util.concurrent.ConcurrentHashMap;
* *
* @author Gaston Dombiak * @author Gaston Dombiak
*/ */
public class ServiceDiscoveryManager { public class ServiceDiscoveryManager extends Manager {
private static final String DEFAULT_IDENTITY_NAME = "Smack"; private static final String DEFAULT_IDENTITY_NAME = "Smack";
private static final String DEFAULT_IDENTITY_CATEGORY = "client"; private static final String DEFAULT_IDENTITY_CATEGORY = "client";
@ -61,7 +72,6 @@ public class ServiceDiscoveryManager {
private static Map<Connection, ServiceDiscoveryManager> instances = private static Map<Connection, ServiceDiscoveryManager> instances =
Collections.synchronizedMap(new WeakHashMap<Connection, ServiceDiscoveryManager>()); Collections.synchronizedMap(new WeakHashMap<Connection, ServiceDiscoveryManager>());
private WeakReference<Connection> connection;
private final Set<String> features = new HashSet<String>(); private final Set<String> features = new HashSet<String>();
private DataForm extendedInfo = null; private DataForm extendedInfo = null;
private Map<String, NodeInformationProvider> nodeInformationProviders = private Map<String, NodeInformationProvider> nodeInformationProviders =
@ -94,8 +104,7 @@ public class ServiceDiscoveryManager {
* @param connection the connection to which a ServiceDiscoveryManager is going to be created. * @param connection the connection to which a ServiceDiscoveryManager is going to be created.
*/ */
private ServiceDiscoveryManager(Connection connection) { private ServiceDiscoveryManager(Connection connection) {
this.connection = new WeakReference<Connection>(connection); super(connection);
// Register the new instance and associate it with the connection // Register the new instance and associate it with the connection
instances.put(connection, this); instances.put(connection, this);
@ -106,7 +115,7 @@ public class ServiceDiscoveryManager {
PacketFilter packetFilter = new PacketTypeFilter(DiscoverItems.class); PacketFilter packetFilter = new PacketTypeFilter(DiscoverItems.class);
PacketListener packetListener = new PacketListener() { PacketListener packetListener = new PacketListener() {
public void processPacket(Packet packet) { public void processPacket(Packet packet) {
Connection connection = ServiceDiscoveryManager.this.connection.get(); Connection connection = connection();
if (connection == null) return; if (connection == null) return;
DiscoverItems discoverItems = (DiscoverItems) packet; DiscoverItems discoverItems = (DiscoverItems) packet;
// Send back the items defined in the client if the request is of type GET // Send back the items defined in the client if the request is of type GET
@ -143,7 +152,7 @@ public class ServiceDiscoveryManager {
packetFilter = new PacketTypeFilter(DiscoverInfo.class); packetFilter = new PacketTypeFilter(DiscoverInfo.class);
packetListener = new PacketListener() { packetListener = new PacketListener() {
public void processPacket(Packet packet) { public void processPacket(Packet packet) {
Connection connection = ServiceDiscoveryManager.this.connection.get(); Connection connection = connection();
if (connection == null) return; if (connection == null) return;
DiscoverInfo discoverInfo = (DiscoverInfo) packet; DiscoverInfo discoverInfo = (DiscoverInfo) packet;
// Answer the client's supported features if the request is of the GET type // Answer the client's supported features if the request is of the GET type
@ -530,16 +539,13 @@ public class ServiceDiscoveryManager {
* @throws XMPPException if the operation failed for some reason. * @throws XMPPException if the operation failed for some reason.
*/ */
public DiscoverInfo discoverInfo(String entityID, String node) throws XMPPException { public DiscoverInfo discoverInfo(String entityID, String node) throws XMPPException {
Connection connection = ServiceDiscoveryManager.this.connection.get();
if (connection == null) throw new XMPPException("Connection instance already gc'ed");
// Discover the entity's info // Discover the entity's info
DiscoverInfo disco = new DiscoverInfo(); DiscoverInfo disco = new DiscoverInfo();
disco.setType(IQ.Type.GET); disco.setType(IQ.Type.GET);
disco.setTo(entityID); disco.setTo(entityID);
disco.setNode(node); disco.setNode(node);
Packet result = connection.createPacketCollectorAndSend(disco).nextResultOrThrow(); Packet result = connection().createPacketCollectorAndSend(disco).nextResultOrThrow();
return (DiscoverInfo) result; return (DiscoverInfo) result;
} }
@ -566,16 +572,13 @@ public class ServiceDiscoveryManager {
* @throws XMPPException if the operation failed for some reason. * @throws XMPPException if the operation failed for some reason.
*/ */
public DiscoverItems discoverItems(String entityID, String node) throws XMPPException { public DiscoverItems discoverItems(String entityID, String node) throws XMPPException {
Connection connection = ServiceDiscoveryManager.this.connection.get();
if (connection == null) throw new XMPPException("Connection instance already gc'ed");
// Discover the entity's items // Discover the entity's items
DiscoverItems disco = new DiscoverItems(); DiscoverItems disco = new DiscoverItems();
disco.setType(IQ.Type.GET); disco.setType(IQ.Type.GET);
disco.setTo(entityID); disco.setTo(entityID);
disco.setNode(node); disco.setNode(node);
Packet result = connection.createPacketCollectorAndSend(disco).nextResultOrThrow(); Packet result = connection().createPacketCollectorAndSend(disco).nextResultOrThrow();
return (DiscoverItems) result; return (DiscoverItems) result;
} }
@ -635,14 +638,11 @@ public class ServiceDiscoveryManager {
*/ */
public void publishItems(String entityID, String node, DiscoverItems discoverItems) public void publishItems(String entityID, String node, DiscoverItems discoverItems)
throws XMPPException { throws XMPPException {
Connection connection = ServiceDiscoveryManager.this.connection.get();
if (connection == null) throw new XMPPException("Connection instance already gc'ed");
discoverItems.setType(IQ.Type.SET); discoverItems.setType(IQ.Type.SET);
discoverItems.setTo(entityID); discoverItems.setTo(entityID);
discoverItems.setNode(node); discoverItems.setNode(node);
connection.createPacketCollectorAndSend(discoverItems).nextResultOrThrow(); connection().createPacketCollectorAndSend(discoverItems).nextResultOrThrow();
} }
/** /**

9
extensions/src/main/java/org/jivesoftware/smackx/iqversion/VersionManager.java
View file

@ -17,12 +17,12 @@
package org.jivesoftware.smackx.iqversion; package org.jivesoftware.smackx.iqversion;
import java.lang.ref.WeakReference;
import java.util.Collections; import java.util.Collections;
import java.util.Map; import java.util.Map;
import java.util.WeakHashMap; import java.util.WeakHashMap;
import org.jivesoftware.smack.Connection; import org.jivesoftware.smack.Connection;
import org.jivesoftware.smack.Manager;
import org.jivesoftware.smack.PacketListener; import org.jivesoftware.smack.PacketListener;
import org.jivesoftware.smack.filter.AndFilter; import org.jivesoftware.smack.filter.AndFilter;
import org.jivesoftware.smack.filter.IQTypeFilter; import org.jivesoftware.smack.filter.IQTypeFilter;
@ -48,15 +48,14 @@ import org.jivesoftware.smackx.iqversion.packet.Version;
* *
* @author Georg Lukas * @author Georg Lukas
*/ */
public class VersionManager { public class VersionManager extends Manager {
private static final Map<Connection, VersionManager> instances = private static final Map<Connection, VersionManager> instances =
Collections.synchronizedMap(new WeakHashMap<Connection, VersionManager>()); Collections.synchronizedMap(new WeakHashMap<Connection, VersionManager>());
private Version own_version; private Version own_version;
private WeakReference<Connection> weakRefConnection;
private VersionManager(final Connection connection) { private VersionManager(final Connection connection) {
this.weakRefConnection = new WeakReference<Connection>(connection); super(connection);
instances.put(connection, this); instances.put(connection, this);
ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection); ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection);
@ -73,7 +72,7 @@ public class VersionManager {
Version reply = new Version(own_version); Version reply = new Version(own_version);
reply.setPacketID(packet.getPacketID()); reply.setPacketID(packet.getPacketID());
reply.setTo(packet.getFrom()); reply.setTo(packet.getFrom());
weakRefConnection.get().sendPacket(reply); connection().sendPacket(reply);
} }
} }
, new AndFilter(new PacketTypeFilter(Version.class), new IQTypeFilter(Type.GET))); , new AndFilter(new PacketTypeFilter(Version.class), new IQTypeFilter(Type.GET)));

32
extensions/src/main/java/org/jivesoftware/smackx/ping/PingManager.java
View file

@ -16,7 +16,6 @@
*/ */
package org.jivesoftware.smackx.ping; package org.jivesoftware.smackx.ping;
import java.lang.ref.WeakReference;
import java.util.Collections; import java.util.Collections;
import java.util.HashSet; import java.util.HashSet;
import java.util.Map; import java.util.Map;
@ -29,6 +28,7 @@ import java.util.logging.Logger;
import org.jivesoftware.smack.Connection; import org.jivesoftware.smack.Connection;
import org.jivesoftware.smack.ConnectionCreationListener; import org.jivesoftware.smack.ConnectionCreationListener;
import org.jivesoftware.smack.ConnectionListener; import org.jivesoftware.smack.ConnectionListener;
import org.jivesoftware.smack.Manager;
import org.jivesoftware.smack.PacketListener; import org.jivesoftware.smack.PacketListener;
import org.jivesoftware.smack.SmackError; import org.jivesoftware.smack.SmackError;
import org.jivesoftware.smack.XMPPException; import org.jivesoftware.smack.XMPPException;
@ -39,7 +39,6 @@ import org.jivesoftware.smack.filter.PacketTypeFilter;
import org.jivesoftware.smack.packet.Packet; import org.jivesoftware.smack.packet.Packet;
import org.jivesoftware.smack.packet.IQ.Type; import org.jivesoftware.smack.packet.IQ.Type;
import org.jivesoftware.smackx.disco.ServiceDiscoveryManager; import org.jivesoftware.smackx.disco.ServiceDiscoveryManager;
import org.jivesoftware.smackx.disco.packet.DiscoverInfo;
import org.jivesoftware.smackx.ping.packet.Ping; import org.jivesoftware.smackx.ping.packet.Ping;
import org.jivesoftware.smackx.ping.packet.Pong; import org.jivesoftware.smackx.ping.packet.Pong;
@ -52,7 +51,7 @@ import org.jivesoftware.smackx.ping.packet.Pong;
* @author Florian Schmaus * @author Florian Schmaus
* @see <a href="http://www.xmpp.org/extensions/xep-0199.html">XEP-0199:XMPP Ping</a> * @see <a href="http://www.xmpp.org/extensions/xep-0199.html">XEP-0199:XMPP Ping</a>
*/ */
public class PingManager { public class PingManager extends Manager {
public static final String NAMESPACE = "urn:xmpp:ping"; public static final String NAMESPACE = "urn:xmpp:ping";
private static final Logger LOGGER = Logger.getLogger(PingManager.class.getName()); private static final Logger LOGGER = Logger.getLogger(PingManager.class.getName());
@ -118,10 +117,8 @@ public class PingManager {
*/ */
private long lastSuccessfulManualPing = -1; private long lastSuccessfulManualPing = -1;
private WeakReference<Connection> weakRefConnection;
private PingManager(Connection connection) { private PingManager(Connection connection) {
weakRefConnection = new WeakReference<Connection>(connection); super(connection);
ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection); ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection);
sdm.addFeature(PingManager.NAMESPACE); sdm.addFeature(PingManager.NAMESPACE);
INSTANCES.put(connection, this); INSTANCES.put(connection, this);
@ -130,9 +127,8 @@ public class PingManager {
// Send a Pong for every Ping // Send a Pong for every Ping
@Override @Override
public void processPacket(Packet packet) { public void processPacket(Packet packet) {
Connection connection = weakRefConnection.get();
Pong pong = new Pong(packet); Pong pong = new Pong(packet);
connection.sendPacket(pong); connection().sendPacket(pong);
} }
}, PING_PACKET_FILTER); }, PING_PACKET_FILTER);
connection.addConnectionListener(new ConnectionListener() { connection.addConnectionListener(new ConnectionListener() {
@ -170,12 +166,11 @@ public class PingManager {
*/ */
public boolean ping(String jid, long pingTimeout) { public boolean ping(String jid, long pingTimeout) {
Ping ping = new Ping(jid); Ping ping = new Ping(jid);
Connection connection = weakRefConnection.get();
try { try {
connection.createPacketCollectorAndSend(ping).nextResultOrThrow(); connection().createPacketCollectorAndSend(ping).nextResultOrThrow();
} }
catch (XMPPException exc) { catch (XMPPException exc) {
return (jid.equals(connection.getServiceName()) && (exc.getSmackError() != SmackError.NO_RESPONSE_FROM_SERVER)); return (jid.equals(connection().getServiceName()) && (exc.getSmackError() != SmackError.NO_RESPONSE_FROM_SERVER));
} }
return true; return true;
} }
@ -188,8 +183,7 @@ public class PingManager {
* @return true if a reply was received from the entity, false otherwise. * @return true if a reply was received from the entity, false otherwise.
*/ */
public boolean ping(String jid) { public boolean ping(String jid) {
Connection connection = weakRefConnection.get(); return ping(jid, connection().getPacketReplyTimeout());
return ping(jid, connection.getPacketReplyTimeout());
} }
/** /**
@ -200,9 +194,7 @@ public class PingManager {
* @throws XMPPException An XMPP related error occurred during the request * @throws XMPPException An XMPP related error occurred during the request
*/ */
public boolean isPingSupported(String jid) throws XMPPException { public boolean isPingSupported(String jid) throws XMPPException {
Connection connection = weakRefConnection.get(); return ServiceDiscoveryManager.getInstanceFor(connection()).supportsFeature(jid, PingManager.NAMESPACE);
DiscoverInfo result = ServiceDiscoveryManager.getInstanceFor(connection).discoverInfo(jid);
return result.containsFeature(PingManager.NAMESPACE);
} }
/** /**
@ -229,8 +221,7 @@ public class PingManager {
* @return * @return
*/ */
public boolean pingMyServer(boolean notifyListeners) { public boolean pingMyServer(boolean notifyListeners) {
Connection connection = weakRefConnection.get(); boolean res = ping(connection().getServiceName());
boolean res = ping(connection.getServiceName());
if (res) { if (res) {
pongReceived(); pongReceived();
} else if (notifyListeners) { } else if (notifyListeners) {
@ -296,8 +287,7 @@ public class PingManager {
maybeStopPingServerTask(); maybeStopPingServerTask();
if (pingInterval > 0) { if (pingInterval > 0) {
LOGGER.fine("Scheduling ServerPingTask in " + pingInterval + " seconds"); LOGGER.fine("Scheduling ServerPingTask in " + pingInterval + " seconds");
Connection connection = weakRefConnection.get(); nextAutomaticPing = connection().schedule(pingServerRunnable, pingInterval, TimeUnit.SECONDS);
nextAutomaticPing = connection.schedule(pingServerRunnable, pingInterval, TimeUnit.SECONDS);
} }
} }
@ -318,7 +308,7 @@ public class PingManager {
public void run() { public void run() {
LOGGER.fine("ServerPingTask run()"); LOGGER.fine("ServerPingTask run()");
Connection connection = weakRefConnection.get(); Connection connection = connection();
if (connection == null) { if (connection == null) {
// connection has been collected by GC // connection has been collected by GC
// which means we can stop the thread by breaking the loop // which means we can stop the thread by breaking the loop

27
extensions/src/main/java/org/jivesoftware/smackx/privacy/PrivacyListManager.java
View file

@ -16,8 +16,16 @@
*/ */
package org.jivesoftware.smackx.privacy; package org.jivesoftware.smackx.privacy;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.WeakHashMap;
import org.jivesoftware.smack.Connection; import org.jivesoftware.smack.Connection;
import org.jivesoftware.smack.ConnectionCreationListener; import org.jivesoftware.smack.ConnectionCreationListener;
import org.jivesoftware.smack.Manager;
import org.jivesoftware.smack.PacketListener; import org.jivesoftware.smack.PacketListener;
import org.jivesoftware.smack.XMPPException; import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.filter.*; import org.jivesoftware.smack.filter.*;
@ -26,9 +34,6 @@ import org.jivesoftware.smack.packet.Packet;
import org.jivesoftware.smackx.privacy.packet.Privacy; import org.jivesoftware.smackx.privacy.packet.Privacy;
import org.jivesoftware.smackx.privacy.packet.PrivacyItem; import org.jivesoftware.smackx.privacy.packet.PrivacyItem;
import java.lang.ref.WeakReference;
import java.util.*;
/** /**
* A PrivacyListManager is used by XMPP clients to block or allow communications from other * A PrivacyListManager is used by XMPP clients to block or allow communications from other
* users. Use the manager to: <ul> * users. Use the manager to: <ul>
@ -42,13 +47,12 @@ import java.util.*;
* *
* @author Francisco Vives * @author Francisco Vives
*/ */
public class PrivacyListManager { public class PrivacyListManager extends Manager {
// Keep the list of instances of this class. // Keep the list of instances of this class.
private static Map<Connection, PrivacyListManager> instances = Collections private static Map<Connection, PrivacyListManager> instances = Collections
.synchronizedMap(new WeakHashMap<Connection, PrivacyListManager>()); .synchronizedMap(new WeakHashMap<Connection, PrivacyListManager>());
private WeakReference<Connection> connection;
private final List<PrivacyListListener> listeners = new ArrayList<PrivacyListListener>(); private final List<PrivacyListListener> listeners = new ArrayList<PrivacyListListener>();
PacketFilter packetFilter = new AndFilter(new IQTypeFilter(IQ.Type.SET), PacketFilter packetFilter = new AndFilter(new IQTypeFilter(IQ.Type.SET),
new PacketExtensionFilter("query", "jabber:iq:privacy")); new PacketExtensionFilter("query", "jabber:iq:privacy"));
@ -71,7 +75,7 @@ public class PrivacyListManager {
* @param connection the XMPP connection. * @param connection the XMPP connection.
*/ */
private PrivacyListManager(final Connection connection) { private PrivacyListManager(final Connection connection) {
this.connection = new WeakReference<Connection>(connection); super(connection);
// Register the new instance and associate it with the connection // Register the new instance and associate it with the connection
instances.put(connection, this); instances.put(connection, this);
@ -121,7 +125,7 @@ public class PrivacyListManager {
* @return the userJID that owns the privacy * @return the userJID that owns the privacy
*/ */
private String getUser() { private String getUser() {
return connection.get().getUser(); return connection().getUser();
} }
/** /**
@ -146,13 +150,11 @@ public class PrivacyListManager {
* @exception XMPPException if the request or the answer failed, it raises an exception. * @exception XMPPException if the request or the answer failed, it raises an exception.
*/ */
private Privacy getRequest(Privacy requestPrivacy) throws XMPPException { private Privacy getRequest(Privacy requestPrivacy) throws XMPPException {
Connection connection = PrivacyListManager.this.connection.get();
if (connection == null) throw new XMPPException("Connection instance already gc'ed");
// The request is a get iq type // The request is a get iq type
requestPrivacy.setType(Privacy.Type.GET); requestPrivacy.setType(Privacy.Type.GET);
requestPrivacy.setFrom(this.getUser()); requestPrivacy.setFrom(this.getUser());
Privacy privacyAnswer = (Privacy) connection.createPacketCollectorAndSend(requestPrivacy).nextResultOrThrow(); Privacy privacyAnswer = (Privacy) connection().createPacketCollectorAndSend(requestPrivacy).nextResultOrThrow();
return privacyAnswer; return privacyAnswer;
} }
@ -166,14 +168,11 @@ public class PrivacyListManager {
* @exception XMPPException if the request or the answer failed, it raises an exception. * @exception XMPPException if the request or the answer failed, it raises an exception.
*/ */
private Packet setRequest(Privacy requestPrivacy) throws XMPPException { private Packet setRequest(Privacy requestPrivacy) throws XMPPException {
Connection connection = PrivacyListManager.this.connection.get();
if (connection == null)
throw new XMPPException("Connection instance already gc'ed");
// The request is a get iq type // The request is a get iq type
requestPrivacy.setType(Privacy.Type.SET); requestPrivacy.setType(Privacy.Type.SET);
requestPrivacy.setFrom(this.getUser()); requestPrivacy.setFrom(this.getUser());
return connection.createPacketCollectorAndSend(requestPrivacy).nextResultOrThrow(); return connection().createPacketCollectorAndSend(requestPrivacy).nextResultOrThrow();
} }
/** /**

16
extensions/src/main/java/org/jivesoftware/smackx/receipts/DeliveryReceiptManager.java
View file

@ -16,7 +16,6 @@
*/ */
package org.jivesoftware.smackx.receipts; package org.jivesoftware.smackx.receipts;
import java.lang.ref.WeakReference;
import java.util.Collections; import java.util.Collections;
import java.util.HashSet; import java.util.HashSet;
import java.util.Map; import java.util.Map;
@ -25,13 +24,13 @@ import java.util.WeakHashMap;
import org.jivesoftware.smack.Connection; import org.jivesoftware.smack.Connection;
import org.jivesoftware.smack.ConnectionCreationListener; import org.jivesoftware.smack.ConnectionCreationListener;
import org.jivesoftware.smack.Manager;
import org.jivesoftware.smack.PacketListener; import org.jivesoftware.smack.PacketListener;
import org.jivesoftware.smack.XMPPException; import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.filter.PacketExtensionFilter; import org.jivesoftware.smack.filter.PacketExtensionFilter;
import org.jivesoftware.smack.packet.Message; import org.jivesoftware.smack.packet.Message;
import org.jivesoftware.smack.packet.Packet; import org.jivesoftware.smack.packet.Packet;
import org.jivesoftware.smackx.disco.ServiceDiscoveryManager; import org.jivesoftware.smackx.disco.ServiceDiscoveryManager;
import org.jivesoftware.smackx.disco.packet.DiscoverInfo;
/** /**
* Manager for XEP-0184: Message Delivery Receipts. This class implements * Manager for XEP-0184: Message Delivery Receipts. This class implements
@ -40,7 +39,7 @@ import org.jivesoftware.smackx.disco.packet.DiscoverInfo;
* *
* @author Georg Lukas * @author Georg Lukas
*/ */
public class DeliveryReceiptManager implements PacketListener { public class DeliveryReceiptManager extends Manager implements PacketListener {
private static Map<Connection, DeliveryReceiptManager> instances = private static Map<Connection, DeliveryReceiptManager> instances =
Collections.synchronizedMap(new WeakHashMap<Connection, DeliveryReceiptManager>()); Collections.synchronizedMap(new WeakHashMap<Connection, DeliveryReceiptManager>());
@ -53,15 +52,14 @@ public class DeliveryReceiptManager implements PacketListener {
}); });
} }
private WeakReference<Connection> weakRefConnection;
private boolean auto_receipts_enabled = false; private boolean auto_receipts_enabled = false;
private Set<ReceiptReceivedListener> receiptReceivedListeners = Collections private Set<ReceiptReceivedListener> receiptReceivedListeners = Collections
.synchronizedSet(new HashSet<ReceiptReceivedListener>()); .synchronizedSet(new HashSet<ReceiptReceivedListener>());
private DeliveryReceiptManager(Connection connection) { private DeliveryReceiptManager(Connection connection) {
super(connection);
ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection); ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection);
sdm.addFeature(DeliveryReceipt.NAMESPACE); sdm.addFeature(DeliveryReceipt.NAMESPACE);
weakRefConnection = new WeakReference<Connection>(connection);
instances.put(connection, this); instances.put(connection, this);
// register listener for delivery receipts and requests // register listener for delivery receipts and requests
@ -92,11 +90,9 @@ public class DeliveryReceiptManager implements PacketListener {
* @return true if supported * @return true if supported
*/ */
public boolean isSupported(String jid) { public boolean isSupported(String jid) {
Connection connection = weakRefConnection.get();
try { try {
DiscoverInfo result = return ServiceDiscoveryManager.getInstanceFor(connection()).supportsFeature(jid,
ServiceDiscoveryManager.getInstanceFor(connection).discoverInfo(jid); DeliveryReceipt.NAMESPACE);
return result.containsFeature(DeliveryReceipt.NAMESPACE);
} }
catch (XMPPException e) { catch (XMPPException e) {
return false; return false;
@ -121,7 +117,7 @@ public class DeliveryReceiptManager implements PacketListener {
DeliveryReceiptRequest drr = (DeliveryReceiptRequest)packet.getExtension( DeliveryReceiptRequest drr = (DeliveryReceiptRequest)packet.getExtension(
DeliveryReceiptRequest.ELEMENT, DeliveryReceipt.NAMESPACE); DeliveryReceiptRequest.ELEMENT, DeliveryReceipt.NAMESPACE);
if (drr != null) { if (drr != null) {
Connection connection = weakRefConnection.get(); Connection connection = connection();
Message ack = new Message(packet.getFrom(), Message.Type.normal); Message ack = new Message(packet.getFrom(), Message.Type.normal);
ack.addExtension(new DeliveryReceipt(packet.getPacketID())); ack.addExtension(new DeliveryReceipt(packet.getPacketID()));
connection.sendPacket(ack); connection.sendPacket(ack);