/**
* Obtain a URLConnection for a given URL. Ensure proxy servers are considered and page caching is
* ignored.
*
* @param source the non-null URL from which to obtain a URLConnection.
* @return URLConnection to the source URL.
* @throws IllegalStateException if source is null.
* @throws IOException if a connection to the URL can't be opened.
*/
public static URLConnection getURLConnection(URL source) throws IOException {
if (source == null) {
throw new IllegalStateException("getURLConnection was given a null 'source' argument.");
}
Proxy cytoProxy = ProxyHandler.getProxyServer();
URLConnection uc = null;
if (cytoProxy == null) {
uc = source.openConnection();
} else {
try {
uc = source.openConnection(cytoProxy);
} catch (UnsupportedOperationException e) {
// This happens when we have a URL whose
// protocol handler doesn't take a proxy
// argument (such as a URL referring to inside
// a jar file). In this case, just use the
// normal way to open a connection:
uc = source.openConnection();
}
}
uc.setUseCaches(false); // don't use a cached page
uc.setConnectTimeout(msConnectionTimeout); // set timeout for connection
return uc;
}
