private void printServerNode(int level, String serverName) {
printlnAtLevel(level, "[Printing list for Server = " + serverName + "]");
String pattern = serverName + "/...";
if (level == 0) pattern = "/" + pattern;
printlnAtLevel(level, "[Pattern = " + pattern + "]");
ChannelTree tr = getChannelTree(pattern);
if (tr == null) {
printlnAtLevel(level, "[no tree]");
return;
}
Iterator i = tr.rootIterator();
if (!i.hasNext()) {
printlnAtLevel(level, "[empty root list]");
return;
}
// the first node should be for the requested serverName
ChannelTree.Node node = (ChannelTree.Node) i.next();
if (!node.getType().toString().equals("Server")) {
printlnAtLevel(level, "[unexpected non-Server node type = " + node.getType() + "]");
return;
}
if (!node.getName().equals(serverName)) {
printlnAtLevel(level, "[unexpected node name = " + node.getName() + "]");
return;
}
printlnAtLevel(
level, node.getName() + " -- " + node.getFullName() + " (" + node.getType() + ")");
printChildren(level + 1, node);
}
private void exec() {
connect();
ChannelTree t = getChannelTree("/...");
Iterator i = t.rootIterator();
int level = 0;
if (!i.hasNext()) {
printlnAtLevel(level, "[empty root list]");
}
// the first node should be for the requested serverName
ChannelTree.Node node = (ChannelTree.Node) i.next();
if (!node.getType().toString().equals("Server")) {
printlnAtLevel(level, "[unexpected non-Server node type = " + node.getType() + "]");
return;
}
String serverName = node.getName();
printServerNode(level, serverName);
}
private void setupChannelList() {
channelPathList = new Vector();
if ((channelPathPattern != null) && !channelPathPattern.equals(""))
appendChannelListFromPattern();
if ((channelPathListString != null) && !channelPathListString.equals(""))
appendChannelListFromString();
Iterator channels = channelPathList.iterator();
if (!channels.hasNext()) {
System.out.println("DataVideoGather: No data channels to monitor.");
this.printUsage();
System.exit(0);
}
channelPathArray = new String[channelPathList.size()];
shortNameArray = new String[channelPathList.size()];
for (int i = 0; i < channelPathArray.length; i++) {
ChannelTree.Node candidate = (ChannelTree.Node) channels.next();
channelPathArray[i] = candidate.getFullName();
shortNameArray[i] = candidate.getName();
}
}
public void appendChannelListFromPattern() {
try {
// Create a sink and connect:
Sink sink = new Sink();
sink.OpenRBNBConnection(getServer(), sinkName);
// get all the channel paths that match the pattern
ChannelMap sMap = new ChannelMap();
sink.RequestRegistration();
sMap = sink.Fetch(-1, sMap);
ChannelTree tree = ChannelTree.createFromChannelMap(sMap);
Pattern p = Pattern.compile(channelPathPattern);
// for each channel path, check match, collect matches...
Iterator nodes = tree.iterator();
while (nodes.hasNext()) {
ChannelTree.Node n = (ChannelTree.Node) nodes.next();
// System.out.println("Checking " + n.getFullName() + ";" + n.getName());
if (!includeHidden && n.getFullName().startsWith("_")) continue;
if (n.getType() != ChannelTree.CHANNEL) continue;
String name = n.getFullName();
Matcher m = p.matcher(name);
if (m.matches()) {
// System.out.println("Matches");
boolean isSource = false;
ChannelTree.Node upNode = n.getParent();
while ((!isSource) || (upNode != null)) {
if (upNode.getType() == ChannelTree.SOURCE) isSource = true;
upNode = upNode.getParent();
}
if (isSource) {
// System.out.println("... and is a source.");
channelPathList.add(n);
} else {
// System.out.println("... and is NOT a source.");
}
}
}
} catch (SAPIException se) {
se.printStackTrace();
}
} // appendChannelListFromPattern
public void appendChannelListFromString() {
try {
StringTokenizer st = new StringTokenizer(channelPathListString, ",");
// Create a sink and connect:
Sink sink = new Sink();
sink.OpenRBNBConnection(getServer(), sinkName);
// get all the channel paths that match the pattern
ChannelMap sMap = new ChannelMap();
sink.RequestRegistration();
sMap = sink.Fetch(-1, sMap);
ChannelTree tree = ChannelTree.createFromChannelMap(sMap);
Pattern p = Pattern.compile(channelPathPattern);
// for each channel path, check match, collect matches...
while (st.hasMoreTokens()) {
String path = st.nextToken();
// System.out.println("Checking " + path);
ChannelTree.Node n = tree.findNode(path);
if (n == null) continue;
if (n.getType() != ChannelTree.CHANNEL) continue;
String name = n.getFullName();
// System.out.println("Found it...");
boolean isSource = false;
ChannelTree.Node upNode = n.getParent();
while ((!isSource) || (upNode != null)) {
if (upNode.getType() == ChannelTree.SOURCE) isSource = true;
upNode = upNode.getParent();
}
if (isSource) {
// System.out.println("... and is a source.");
channelPathList.add(n);
} else {
// System.out.println("... and is NOT a source.");
}
} // while next token
} catch (SAPIException se) {
se.printStackTrace();
}
} // appendChannelListFromString
private void printChildren(int level, ChannelTree.Node node) {
// iterate through children of hirarchy
List l = node.getChildren();
Iterator i = l.iterator();
while (i.hasNext()) {
node = (ChannelTree.Node) i.next();
printlnAtLevel(
level, node.getName() + " -- " + node.getFullName() + " (" + node.getType() + ")");
if (node.getType().toString().equals("Server")) printServerNode(level + 1, node.getName());
else {
printChildren(level + 1, node);
}
}
}
/**
* Get the metadata channel tree for the given <code>path</code>. This will populate the channel
* map with channel objects derived from the metadata. This will recursively make requests for
* child servers and plugins up to the maximum request depth of {@value #MAX_REQUEST_DEPTH}.
*
* @param sink sink the sink connection to the RBNB server
* @param path the path for the desired metadata
* @param channels the map to populate with channel objects
* @param depth the depth of the request
* @return the metadata channel tree for the given path
* @throws SAPIException if a server error occurs
* @see #MAX_REQUEST_DEPTH
*/
private ChannelTree getChannelTree(
Sink sink, String path, Map<String, Channel> channels, int depth) throws SAPIException {
depth++;
ChannelTree ctree = ChannelTree.EMPTY_TREE;
ChannelMap markerChannelMap = new ChannelMap();
ChannelMap cmap = new ChannelMap();
if (path == null) {
path = "";
cmap.Add("...");
} else {
cmap.Add(path + "/...");
}
sink.RequestRegistration(cmap);
cmap = sink.Fetch(FETCH_TIMEOUT, cmap);
if (cmap.GetIfFetchTimedOut()) {
log.error("Failed to get metadata. Fetch timed out.");
return ctree;
}
ctree = ChannelTree.createFromChannelMap(cmap);
// store user metadata in channel objects
String[] channelList = cmap.GetChannelList();
for (int i = 0; i < channelList.length; i++) {
int channelIndex = cmap.GetIndex(channelList[i]);
if (channelIndex != -1) {
ChannelTree.Node node = ctree.findNode(channelList[i]);
String userMetadata = cmap.GetUserInfo(channelIndex);
Channel channel = new RBNBChannel(node, userMetadata);
channels.put(channelList[i], channel);
// look for marker channels
String mimeType = channel.getMetadata("mime");
if (mimeType != null && mimeType.compareToIgnoreCase(EventMarker.MIME_TYPE) == 0) {
markerChannelMap.Add(node.getFullName());
}
}
}
Iterator<?> it = ctree.iterator();
while (it.hasNext()) {
ChannelTree.Node node = (ChannelTree.Node) it.next();
NodeTypeEnum type = node.getType();
// look for child servers or plugins and get their channels
if ((type == ChannelTree.SERVER || type == ChannelTree.PLUGIN)
&& !path.startsWith(node.getFullName())
&& depth < MAX_REQUEST_DEPTH) {
ChannelTree childChannelTree = getChannelTree(sink, node.getFullName(), channels, depth);
ctree = childChannelTree.merge(ctree);
}
}
if (markerChannelMap.NumberOfChannels() > 0) {
double markersDuration = System.currentTimeMillis() / 1000d;
// request from start of marker channels to now
sink.Request(markerChannelMap, 0, markersDuration, "absolute");
markerChannelMap = sink.Fetch(FETCH_TIMEOUT, markerChannelMap);
if (!markerChannelMap.GetIfFetchTimedOut()) {
// notify marker listeners
fireMarkersUpdated(markerChannelMap);
} else {
log.error("Failed to get event markers. Fetched timed out.");
}
}
return ctree;
}
