Mercury-IM/Smack
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Code Issues Releases Wiki Activity

Move DNS resolving into connect()

Browse source 
It was misplaced in ConnectionConfiguration anyways, as the sole
instantiation of a ConnectionConfiguration should not cause any network
I/O.
This commit is contained in:
Florian Schmaus 2014-03-18 17:29:38 +01:00
parent dbab9b8995
commit d349940537
7 changed files with 56 additions and 64 deletions
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19
core/src/main/java/org/jivesoftware/smack/ConnectionConfiguration.java
View file

@ -102,8 +102,6 @@ public class ConnectionConfiguration implements Cloneable {
* @param serviceName the name of the service provided by an XMPP server.
*/
public ConnectionConfiguration(String serviceName) {
// Perform DNS lookup to get host and port to use
hostAddresses = DNSUtil.resolveXMPPDomain(serviceName);
init(serviceName, ProxyInfo.forDefaultProxy());
}
@ -117,8 +115,6 @@ public class ConnectionConfiguration implements Cloneable {
* @param proxy the proxy through which XMPP is to be connected
*/
public ConnectionConfiguration(String serviceName,ProxyInfo proxy) {
// Perform DNS lookup to get host and port to use
hostAddresses = DNSUtil.resolveXMPPDomain(serviceName);
init(serviceName, proxy);
}
@ -203,7 +199,7 @@ public class ConnectionConfiguration implements Cloneable {
*
* @param serviceName the XMPP domain of the target server.
*/
public void setServiceName(String serviceName) {
void setServiceName(String serviceName) {
this.serviceName = serviceName;
}
@ -569,14 +565,17 @@ public class ConnectionConfiguration implements Cloneable {
this.resource = resource;
}
void maybeResolveDns() throws Exception {
// Abort if we did already resolve the hosts successfully
if (hostAddresses != null)
return;
hostAddresses = DNSUtil.resolveXMPPDomain(serviceName);
}
private void initHostAddresses(String host, int port) {
hostAddresses = new ArrayList<HostAddress>(1);
HostAddress hostAddress;
try {
hostAddress = new HostAddress(host, port);
} catch (Exception e) {
throw new IllegalStateException(e);
}
hostAddress = new HostAddress(host, port);
hostAddresses.add(hostAddress);
}
}

8
core/src/main/java/org/jivesoftware/smack/util/DNSUtil.java
View file

@ -77,8 +77,9 @@ public class DNSUtil {
* @param domain the domain.
* @return List of HostAddress, which encompasses the hostname and port that the
* XMPP server can be reached at for the specified domain.
* @throws Exception
*/
public static List<HostAddress> resolveXMPPDomain(final String domain) {
public static List<HostAddress> resolveXMPPDomain(final String domain) throws Exception {
if (dnsResolver == null) {
List<HostAddress> addresses = new ArrayList<HostAddress>(1);
addresses.add(new HostAddress(domain, 5222));
@ -103,8 +104,9 @@ public class DNSUtil {
* @param domain the domain.
* @return List of HostAddress, which encompasses the hostname and port that the
* XMPP server can be reached at for the specified domain.
* @throws Exception
*/
public static List<HostAddress> resolveXMPPServerDomain(final String domain) {
public static List<HostAddress> resolveXMPPServerDomain(final String domain) throws Exception {
if (dnsResolver == null) {
List<HostAddress> addresses = new ArrayList<HostAddress>(1);
addresses.add(new HostAddress(domain, 5269));
@ -113,7 +115,7 @@ public class DNSUtil {
return resolveDomain(domain, 's');
}
private static List<HostAddress> resolveDomain(String domain, char keyPrefix) {
private static List<HostAddress> resolveDomain(String domain, char keyPrefix) throws Exception {
// Prefix the key with 's' to distinguish him from the client domain lookups
String key = keyPrefix + domain;
// Return item from cache if it exists.

2
core/src/main/java/org/jivesoftware/smack/util/dns/DNSResolver.java
View file

@ -29,6 +29,6 @@ public interface DNSResolver {
* @param name The symbolic name of the service.
* @return The list of SRV records mapped to the service name.
*/
List<SRVRecord> lookupSRVRecords(String name);
List<SRVRecord> lookupSRVRecords(String name) throws Exception;
}

2
core/src/main/java/org/jivesoftware/smack/util/dns/HostAddress.java
View file

@ -51,7 +51,7 @@ public class HostAddress {
this(fqdn);
if (port < 0 || port > 65535)
throw new IllegalArgumentException(
"DNS SRV records weight must be a 16-bit unsiged integer (i.e. between 0-65535. Port was: " + port);
"Port must be a 16-bit unsiged integer (i.e. between 0-65535. Port was: " + port);
this.port = port;
}