/**
* If CS throws an exception it handled and transalated to a Openfire exception if possible. This
* is done using <code>exceptionMap</code> that has a mapping from CS to OF. If no mapping is
* found then it tries to instantiete the original exception. If this fails it throws a <code>
* Exception</code> with the message of the CS exception.
*
* @param response the response from CS to check if it is an exception message.
* @throws Exception if the response is an exception message.
*/
private void checkFault(Element response) throws Exception {
Node node = response.selectSingleNode("ns1:faultstring");
if (node != null) {
String exceptionText = node.getText();
// Text accepted samples:
// 'java.lang.Exception: Exception message'
// 'java.lang.Exception'
// Get the exception class and message if any
int index = exceptionText.indexOf(":");
String className;
String message;
// If there is no message, save the class only
if (index == -1) {
className = exceptionText;
message = null;
} else {
// Else save both
className = exceptionText.substring(0, index);
message = exceptionText.substring(index + 2);
}
// Map the exception to a Openfire one, if possible
if (exceptionMap.containsKey(className)) {
className = exceptionMap.get(className);
}
// Tries to create an instance with the message
Exception exception;
try {
Class exceptionClass = Class.forName(className);
if (message == null) {
exception = (Exception) exceptionClass.newInstance();
} else {
Constructor constructor = exceptionClass.getConstructor(String.class);
exception = (Exception) constructor.newInstance(message);
}
} catch (Exception e) {
// failed to create an specific exception, creating a standard one.
exception = new Exception(exceptionText);
}
throw exception;
}
}
private GroupManager() {
// Initialize caches.
CacheManager.initializeCache("group", 128 * 1024);
CacheManager.initializeCache("group member", 32 * 1024);
groupCache = CacheManager.getCache("group");
// Load a group provider.
String className =
JiveGlobals.getXMLProperty(
"provider.group.className", "org.jivesoftware.wildfire.group.DefaultGroupProvider");
try {
Class c = ClassUtils.forName(className);
provider = (GroupProvider) c.newInstance();
} catch (Exception e) {
Log.error("Error loading group provider: " + className, e);
provider = new DefaultGroupProvider();
}
}