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POFetch all DLNA root storage directories in Cling?
 

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    <p>I'm using the awesome <code>Cling</code> library to scan my network for UPnP devices. My goal is to throw together a little DLNA library browser so I can learn the technology. I have so far been able to 1. scan the network and get connected UPnP devices, 2. scan each remote device and determine if it has a DLNA service running, and 3. browse immediate children of known nodes. In short, this is my method that is able to run all of this:</p> <pre><code> public void remoteDeviceAdded(Registry registry, RemoteDevice device) { logger.debug("remote device added: {}[{}]", device.getDetails().getFriendlyName(), device.getType().getType()); if (device.getType().getType().equals("MediaServer")) { for (RemoteService service : device.getServices()) { if (service.getServiceType().getType().equals("ContentDirectory")) { // '1' is Music, '2' is Video, '3' is Pictures this.service.getControlPoint().execute(new Browse(service, "3", BrowseFlag.DIRECT_CHILDREN) { @Override public void received(ActionInvocation arg0, DIDLContent didl) { logger.debug("found {} items.", didl.getItems().size()); } @Override public void updateStatus(Status arg0) { }; @Override public void failure(ActionInvocation arg0, UpnpResponse arg1, String arg2) { }; }); } } } } </code></pre> <p>I know, it probably looks like a horrible mess and it is, but it works :) When I drop into a debugger, I can see what I've got. However, unlike the instructions from the guide <a href="http://teleal.org/projects/cling/support/manual/cling-support-manual.html#javadoc.example.mediaserver.ContentDirectoryBrowseTest" rel="noreferrer">here</a>, I don't get back any actual media items, just storage directories in the browse result. This kind of makes sense as DLNA organizes things into a hierarchy like so:</p> <pre><code>Music All Music Artists Fleetwood Mac ... Albums ... Video All Video Folders ... </code></pre> <p>My question is this, what's the easiest way to browse these folders and climb through the hierarchy? I'm already at a point where I'm connected to the UPnP DLNA server that I was looking for, now how do I get these root storage directories? In the browse command given above, I have to actually pass a string representation of some index to get "Music" or "Video" or the like. How do I get the top level of storage directories, then how can I browse each one of those directories? My goal is to at least build a simple browser. </p>
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