mirror of
https://github.com/vanitasvitae/Smack.git
synced 2025-09-11 01:59:38 +02:00
SMACK-458 Managers should be kept on disconnects
Smack's Managers should not remove itself when the connection is closed or should re-add themselves if the connection get reconnected. This should also fix some NPE's. We are currently going with two different designs of Manager: 1. The one with WeakReferences/WeakHashMaps (SDM, EntityCapsManager) and 2. the one where the managers remove their listeners on connectionClosed() *and* connectionClosedOnError(), and later add their listeners on reconnectionSuccessful(). The first design has the Connection instance only weak referenced. The other design does reference Connection strongly (e.g. the 'managers' map in IBBManager/S5BManager), but removes this references when connectionClosed(onError)() is called. git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/branches/smack_3_3_2@13788 b35dd754-fafc-0310-a699-88a17e54d16e
This commit is contained in:
Florian Schmaus
flow
parent
032fc8626e
commit
b16f34f61e
12 changed files with 298 additions and 369 deletions
|
|
@ -34,6 +34,7 @@ import org.jivesoftware.smackx.packet.DiscoverInfo.Identity;
|
|||
import org.jivesoftware.smackx.packet.DiscoverItems;
|
||||
import org.jivesoftware.smackx.packet.DataForm;
|
||||
|
||||
import java.lang.ref.WeakReference;
|
||||
import java.util.*;
|
||||
import java.util.concurrent.ConcurrentHashMap;
|
||||
|
||||
|
|
@ -59,9 +60,9 @@ public class ServiceDiscoveryManager {
|
|||
private EntityCapsManager capsManager;
|
||||
|
||||
private static Map<Connection, ServiceDiscoveryManager> instances =
|
||||
new ConcurrentHashMap<Connection, ServiceDiscoveryManager>();
|
||||
Collections.synchronizedMap(new WeakHashMap<Connection, ServiceDiscoveryManager>());
|
||||
|
||||
private Connection connection;
|
||||
private WeakReference<Connection> connection;
|
||||
private final Set<String> features = new HashSet<String>();
|
||||
private DataForm extendedInfo = null;
|
||||
private Map<String, NodeInformationProvider> nodeInformationProviders =
|
||||
|
|
@ -82,12 +83,100 @@ public class ServiceDiscoveryManager {
|
|||
* service manager will respond to any service discovery request that the connection may
|
||||
* receive.
|
||||
*
|
||||
* @deprecated use {@link #getInstanceFor(connection)} instead
|
||||
* @param connection the connection to which a ServiceDiscoveryManager is going to be created.
|
||||
*/
|
||||
@Deprecated
|
||||
public ServiceDiscoveryManager(Connection connection) {
|
||||
this.connection = connection;
|
||||
this.connection = new WeakReference<Connection>(connection);
|
||||
// Register the new instance and associate it with the connection
|
||||
instances.put(connection, this);
|
||||
|
||||
init();
|
||||
addFeature(DiscoverInfo.NAMESPACE);
|
||||
addFeature(DiscoverItems.NAMESPACE);
|
||||
|
||||
// Listen for disco#items requests and answer with an empty result
|
||||
PacketFilter packetFilter = new PacketTypeFilter(DiscoverItems.class);
|
||||
PacketListener packetListener = new PacketListener() {
|
||||
public void processPacket(Packet packet) {
|
||||
Connection connection = ServiceDiscoveryManager.this.connection.get();
|
||||
if (connection == null) return;
|
||||
DiscoverItems discoverItems = (DiscoverItems) packet;
|
||||
// Send back the items defined in the client if the request is of type GET
|
||||
if (discoverItems != null && discoverItems.getType() == IQ.Type.GET) {
|
||||
DiscoverItems response = new DiscoverItems();
|
||||
response.setType(IQ.Type.RESULT);
|
||||
response.setTo(discoverItems.getFrom());
|
||||
response.setPacketID(discoverItems.getPacketID());
|
||||
response.setNode(discoverItems.getNode());
|
||||
|
||||
// Add the defined items related to the requested node. Look for
|
||||
// the NodeInformationProvider associated with the requested node.
|
||||
NodeInformationProvider nodeInformationProvider =
|
||||
getNodeInformationProvider(discoverItems.getNode());
|
||||
if (nodeInformationProvider != null) {
|
||||
// Specified node was found, add node items
|
||||
response.addItems(nodeInformationProvider.getNodeItems());
|
||||
// Add packet extensions
|
||||
response.addExtensions(nodeInformationProvider.getNodePacketExtensions());
|
||||
} else if(discoverItems.getNode() != null) {
|
||||
// Return <item-not-found/> error since client doesn't contain
|
||||
// the specified node
|
||||
response.setType(IQ.Type.ERROR);
|
||||
response.setError(new XMPPError(XMPPError.Condition.item_not_found));
|
||||
}
|
||||
connection.sendPacket(response);
|
||||
}
|
||||
}
|
||||
};
|
||||
connection.addPacketListener(packetListener, packetFilter);
|
||||
|
||||
// Listen for disco#info requests and answer the client's supported features
|
||||
// To add a new feature as supported use the #addFeature message
|
||||
packetFilter = new PacketTypeFilter(DiscoverInfo.class);
|
||||
packetListener = new PacketListener() {
|
||||
public void processPacket(Packet packet) {
|
||||
Connection connection = ServiceDiscoveryManager.this.connection.get();
|
||||
if (connection == null) return;
|
||||
DiscoverInfo discoverInfo = (DiscoverInfo) packet;
|
||||
// Answer the client's supported features if the request is of the GET type
|
||||
if (discoverInfo != null && discoverInfo.getType() == IQ.Type.GET) {
|
||||
DiscoverInfo response = new DiscoverInfo();
|
||||
response.setType(IQ.Type.RESULT);
|
||||
response.setTo(discoverInfo.getFrom());
|
||||
response.setPacketID(discoverInfo.getPacketID());
|
||||
response.setNode(discoverInfo.getNode());
|
||||
// Add the client's identity and features only if "node" is null
|
||||
// and if the request was not send to a node. If Entity Caps are
|
||||
// enabled the client's identity and features are may also added
|
||||
// if the right node is chosen
|
||||
if (discoverInfo.getNode() == null) {
|
||||
addDiscoverInfoTo(response);
|
||||
}
|
||||
else {
|
||||
// Disco#info was sent to a node. Check if we have information of the
|
||||
// specified node
|
||||
NodeInformationProvider nodeInformationProvider =
|
||||
getNodeInformationProvider(discoverInfo.getNode());
|
||||
if (nodeInformationProvider != null) {
|
||||
// Node was found. Add node features
|
||||
response.addFeatures(nodeInformationProvider.getNodeFeatures());
|
||||
// Add node identities
|
||||
response.addIdentities(nodeInformationProvider.getNodeIdentities());
|
||||
// Add packet extensions
|
||||
response.addExtensions(nodeInformationProvider.getNodePacketExtensions());
|
||||
}
|
||||
else {
|
||||
// Return <item-not-found/> error since specified node was not found
|
||||
response.setType(IQ.Type.ERROR);
|
||||
response.setError(new XMPPError(XMPPError.Condition.item_not_found));
|
||||
}
|
||||
}
|
||||
connection.sendPacket(response);
|
||||
}
|
||||
}
|
||||
};
|
||||
connection.addPacketListener(packetListener, packetFilter);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -96,8 +185,12 @@ public class ServiceDiscoveryManager {
|
|||
* @param connection the connection used to look for the proper ServiceDiscoveryManager.
|
||||
* @return the ServiceDiscoveryManager associated with a given Connection.
|
||||
*/
|
||||
public static ServiceDiscoveryManager getInstanceFor(Connection connection) {
|
||||
return instances.get(connection);
|
||||
public static synchronized ServiceDiscoveryManager getInstanceFor(Connection connection) {
|
||||
ServiceDiscoveryManager sdm = instances.get(connection);
|
||||
if (sdm == null) {
|
||||
sdm = new ServiceDiscoveryManager(connection);
|
||||
}
|
||||
return sdm;
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -173,122 +266,6 @@ public class ServiceDiscoveryManager {
|
|||
return Collections.unmodifiableList(identities);
|
||||
}
|
||||
|
||||
/**
|
||||
* Initializes the packet listeners of the connection that will answer to any
|
||||
* service discovery request.
|
||||
*/
|
||||
private void init() {
|
||||
// Register the new instance and associate it with the connection
|
||||
instances.put(connection, this);
|
||||
|
||||
addFeature(DiscoverInfo.NAMESPACE);
|
||||
addFeature(DiscoverItems.NAMESPACE);
|
||||
|
||||
// Add a listener to the connection that removes the registered instance when
|
||||
// the connection is closed
|
||||
connection.addConnectionListener(new ConnectionListener() {
|
||||
public void connectionClosed() {
|
||||
// Unregister this instance since the connection has been closed
|
||||
instances.remove(connection);
|
||||
}
|
||||
|
||||
public void connectionClosedOnError(Exception e) {
|
||||
// ignore
|
||||
}
|
||||
|
||||
public void reconnectionFailed(Exception e) {
|
||||
// ignore
|
||||
}
|
||||
|
||||
public void reconnectingIn(int seconds) {
|
||||
// ignore
|
||||
}
|
||||
|
||||
public void reconnectionSuccessful() {
|
||||
// ignore
|
||||
}
|
||||
});
|
||||
|
||||
// Listen for disco#items requests and answer with an empty result
|
||||
PacketFilter packetFilter = new PacketTypeFilter(DiscoverItems.class);
|
||||
PacketListener packetListener = new PacketListener() {
|
||||
public void processPacket(Packet packet) {
|
||||
DiscoverItems discoverItems = (DiscoverItems) packet;
|
||||
// Send back the items defined in the client if the request is of type GET
|
||||
if (discoverItems != null && discoverItems.getType() == IQ.Type.GET) {
|
||||
DiscoverItems response = new DiscoverItems();
|
||||
response.setType(IQ.Type.RESULT);
|
||||
response.setTo(discoverItems.getFrom());
|
||||
response.setPacketID(discoverItems.getPacketID());
|
||||
response.setNode(discoverItems.getNode());
|
||||
|
||||
// Add the defined items related to the requested node. Look for
|
||||
// the NodeInformationProvider associated with the requested node.
|
||||
NodeInformationProvider nodeInformationProvider =
|
||||
getNodeInformationProvider(discoverItems.getNode());
|
||||
if (nodeInformationProvider != null) {
|
||||
// Specified node was found, add node items
|
||||
response.addItems(nodeInformationProvider.getNodeItems());
|
||||
// Add packet extensions
|
||||
response.addExtensions(nodeInformationProvider.getNodePacketExtensions());
|
||||
} else if(discoverItems.getNode() != null) {
|
||||
// Return <item-not-found/> error since client doesn't contain
|
||||
// the specified node
|
||||
response.setType(IQ.Type.ERROR);
|
||||
response.setError(new XMPPError(XMPPError.Condition.item_not_found));
|
||||
}
|
||||
connection.sendPacket(response);
|
||||
}
|
||||
}
|
||||
};
|
||||
connection.addPacketListener(packetListener, packetFilter);
|
||||
|
||||
// Listen for disco#info requests and answer the client's supported features
|
||||
// To add a new feature as supported use the #addFeature message
|
||||
packetFilter = new PacketTypeFilter(DiscoverInfo.class);
|
||||
packetListener = new PacketListener() {
|
||||
public void processPacket(Packet packet) {
|
||||
DiscoverInfo discoverInfo = (DiscoverInfo) packet;
|
||||
// Answer the client's supported features if the request is of the GET type
|
||||
if (discoverInfo != null && discoverInfo.getType() == IQ.Type.GET) {
|
||||
DiscoverInfo response = new DiscoverInfo();
|
||||
response.setType(IQ.Type.RESULT);
|
||||
response.setTo(discoverInfo.getFrom());
|
||||
response.setPacketID(discoverInfo.getPacketID());
|
||||
response.setNode(discoverInfo.getNode());
|
||||
// Add the client's identity and features only if "node" is null
|
||||
// and if the request was not send to a node. If Entity Caps are
|
||||
// enabled the client's identity and features are may also added
|
||||
// if the right node is chosen
|
||||
if (discoverInfo.getNode() == null) {
|
||||
addDiscoverInfoTo(response);
|
||||
}
|
||||
else {
|
||||
// Disco#info was sent to a node. Check if we have information of the
|
||||
// specified node
|
||||
NodeInformationProvider nodeInformationProvider =
|
||||
getNodeInformationProvider(discoverInfo.getNode());
|
||||
if (nodeInformationProvider != null) {
|
||||
// Node was found. Add node features
|
||||
response.addFeatures(nodeInformationProvider.getNodeFeatures());
|
||||
// Add node identities
|
||||
response.addIdentities(nodeInformationProvider.getNodeIdentities());
|
||||
// Add packet extensions
|
||||
response.addExtensions(nodeInformationProvider.getNodePacketExtensions());
|
||||
}
|
||||
else {
|
||||
// Return <item-not-found/> error since specified node was not found
|
||||
response.setType(IQ.Type.ERROR);
|
||||
response.setError(new XMPPError(XMPPError.Condition.item_not_found));
|
||||
}
|
||||
}
|
||||
connection.sendPacket(response);
|
||||
}
|
||||
}
|
||||
};
|
||||
connection.addPacketListener(packetListener, packetFilter);
|
||||
}
|
||||
|
||||
/**
|
||||
* Add discover info response data.
|
||||
*
|
||||
|
|
@ -534,6 +511,9 @@ public class ServiceDiscoveryManager {
|
|||
* @throws XMPPException if the operation failed for some reason.
|
||||
*/
|
||||
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
|
||||
DiscoverInfo disco = new DiscoverInfo();
|
||||
disco.setType(IQ.Type.GET);
|
||||
|
|
@ -581,6 +561,9 @@ public class ServiceDiscoveryManager {
|
|||
* @throws XMPPException if the operation failed for some reason.
|
||||
*/
|
||||
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
|
||||
DiscoverItems disco = new DiscoverItems();
|
||||
disco.setType(IQ.Type.GET);
|
||||
|
|
@ -662,6 +645,9 @@ public class ServiceDiscoveryManager {
|
|||
*/
|
||||
public void publishItems(String entityID, String node, DiscoverItems discoverItems)
|
||||
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.setTo(entityID);
|
||||
discoverItems.setNode(node);
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue