从smack-config.xml文件中加载文件内容 Loads the configuration from the smack-config.xml file
/**
* Loads the configuration from the smack-config.xml file.<p>
*
* So far this means that:
* 1) a set of classes will be loaded in order to execute their static init block
* 2) retrieve and set the current Smack release
*/
static {
try {
// Get an array of class loaders to try loading the providers files from.
ClassLoader[] classLoaders = getClassLoaders();
for (ClassLoader classLoader : classLoaders) {
Enumeration configEnum = classLoader.getResources("META-INF/smack-config.xml");
while (configEnum.hasMoreElements()) {
URL url = (URL) configEnum.nextElement();
InputStream systemStream = null;
try {
systemStream = url.openStream();
XmlPullParser parser = XmlPullParserFactory.newInstance().newPullParser();
parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, true);
parser.setInput(systemStream, "UTF-8");
int eventType = parser.getEventType();
do {
if (eventType == XmlPullParser.START_TAG) {
if (parser.getName().equals("className")) {
// Attempt to load the class so that the class can get initialized
parseClassToLoad(parser);
}
else if (parser.getName().equals("packetReplyTimeout")) {
packetReplyTimeout = parseIntProperty(parser, packetReplyTimeout);
}
else if (parser.getName().equals("keepAliveInterval")) {
keepAliveInterval = parseIntProperty(parser, keepAliveInterval);
}
else if (parser.getName().equals("mechName")) {
defaultMechs.add(parser.nextText());
}
else if (parser.getName().equals("localSocks5ProxyEnabled")) {
localSocks5ProxyEnabled = Boolean.parseBoolean(parser.nextText());
}
else if (parser.getName().equals("localSocks5ProxyPort")) {
localSocks5ProxyPort = parseIntProperty(parser, localSocks5ProxyPort);
}
else if (parser.getName().equals("packetCollectorSize")) {
packetCollectorSize = parseIntProperty(parser, packetCollectorSize);
}
}
eventType = parser.next();
}
while (eventType != XmlPullParser.END_DOCUMENT);
}
catch (Exception e) {
e.printStackTrace();
}
finally {
try {
systemStream.close();
}
catch (Exception e) {
// Ignore.
}
}
}
}
}
catch (Exception e) {
e.printStackTrace();
}
}