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Code Issues Releases Wiki Activity

Improve getMultipleRecipientServiceAddress

Browse source 
and MultipleRecipient (XEP-33) related code in general (e.g. use
constants where possible).

For getMultipleRecipientServiceAddress() this means that
- the "synchronized (services)" block is removed
- ServiceDiscoveryManager is only retrieved once
This commit is contained in:
Florian Schmaus 2014-06-05 15:05:11 +02:00
parent 0680553ef7
commit 36a86f2dfc
2 changed files with 39 additions and 36 deletions
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64
smack-extensions/src/main/java/org/jivesoftware/smackx/address/MultipleRecipientManager.java
View file

@ -22,7 +22,6 @@ import org.jivesoftware.smack.SmackException.NoResponseException;
import org.jivesoftware.smack.SmackException.FeatureNotSupportedException;
import org.jivesoftware.smack.SmackException.NotConnectedException;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.XMPPException.XMPPErrorException;
import org.jivesoftware.smack.packet.Message;
import org.jivesoftware.smack.packet.Packet;
@ -36,6 +35,8 @@ import org.jivesoftware.smackx.disco.packet.DiscoverItems;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* A MultipleRecipientManager allows to send packets to multiple recipients by making use of
@ -46,6 +47,8 @@ import java.util.List;
*/
public class MultipleRecipientManager {
private static final Logger LOGGER = Logger.getLogger(MultipleRecipientManager.class.getName());
/**
* Create a cache to hold the 100 most recently accessed elements for a period of
* 24 hours.
@ -205,7 +208,7 @@ public class MultipleRecipientManager {
*/
public static MultipleRecipientInfo getMultipleRecipientInfo(Packet packet) {
MultipleAddresses extension = (MultipleAddresses) packet
.getExtension("addresses", "http://jabber.org/protocol/address");
.getExtension(MultipleAddresses.ELEMENT, MultipleAddresses.NAMESPACE);
return extension == null ? null : new MultipleRecipientInfo(extension);
}
@ -295,40 +298,37 @@ public class MultipleRecipientManager {
String serviceName = connection.getServiceName();
String serviceAddress = (String) services.get(serviceName);
if (serviceAddress == null) {
synchronized (services) {
serviceAddress = (String) services.get(serviceName);
if (serviceAddress == null) {
// Send the disco packet to the server itself
DiscoverInfo info = ServiceDiscoveryManager.getInstanceFor(connection).discoverInfo(
serviceName);
// Check if the server supports JEP-33
if (info.containsFeature("http://jabber.org/protocol/address")) {
ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection);
// Send the disco packet to the server itself
DiscoverInfo info = sdm.discoverInfo(serviceName);
// Check if the server supports XEP-33
if (info.containsFeature(MultipleAddresses.NAMESPACE)) {
serviceAddress = serviceName;
}
else {
// Get the disco items and send the disco packet to each server item
DiscoverItems items = sdm.discoverItems(serviceName);
for (DiscoverItems.Item item : items.getItems()) {
try {
info = sdm.discoverInfo(item.getEntityID(), item.getNode());
}
catch (XMPPErrorException|NoResponseException e) {
// Don't throw this exceptions if one of the server's items fail
LOGGER.log(Level.WARNING,
"Exception while discovering info of " + item.getEntityID()
+ " node: " + item.getNode(), e);
continue;
}
if (info.containsFeature(MultipleAddresses.NAMESPACE)) {
serviceAddress = serviceName;
break;
}
else {
// Get the disco items and send the disco packet to each server item
DiscoverItems items = ServiceDiscoveryManager.getInstanceFor(connection).discoverItems(
serviceName);
for (DiscoverItems.Item item : items.getItems()) {
try {
info = ServiceDiscoveryManager.getInstanceFor(connection).discoverInfo(
item.getEntityID(), item.getNode());
}
catch (XMPPErrorException|NoResponseException e) {
// Don't throw this exceptions if one of the server's items fail
continue;
}
if (info.containsFeature("http://jabber.org/protocol/address")) {
serviceAddress = serviceName;
break;
}
}
}
// Cache the discovered information
services.put(serviceName, serviceAddress == null ? "" : serviceAddress);
}
}
// Use the empty string to indicate that no service is known for this connection
serviceAddress = serviceAddress == null ? "" : serviceAddress;
// Cache the discovered information
services.put(serviceName, serviceAddress);
}
return "".equals(serviceAddress) ? null : serviceAddress;

9
smack-extensions/src/main/java/org/jivesoftware/smackx/address/packet/MultipleAddresses.java
View file

@ -30,6 +30,9 @@ import java.util.List;
*/
public class MultipleAddresses implements PacketExtension {
public static final String NAMESPACE = "http://jabber.org/protocol/address";
public static final String ELEMENT = "addresses";
public static final String BCC = "bcc";
public static final String CC = "cc";
public static final String NO_REPLY = "noreply";
@ -94,17 +97,17 @@ public class MultipleAddresses implements PacketExtension {
}
public String getElementName() {
return "addresses";
return ELEMENT;
}
public String getNamespace() {
return "http://jabber.org/protocol/address";
return NAMESPACE;
}
public String toXML() {
StringBuilder buf = new StringBuilder();
buf.append("<").append(getElementName());
buf.append(" xmlns=\"").append(getNamespace()).append("\">");
buf.append(" xmlns=\"").append(NAMESPACE).append("\">");
// Loop through all the addresses and append them to the string buffer
for (Iterator<Address> i = addresses.iterator(); i.hasNext();) {
Address address = (Address) i.next();