@GET
@Path("domain{path:.*}")
@Produces({MediaType.APPLICATION_JSON,MediaType.APPLICATION_XML,"text/html;qs=2"})
public Response getChildNodes(@PathParam("path")List<PathSegment> pathSegments) {
Response.ResponseBuilder responseBuilder = Response.status(OK);
RestActionReporter ar = new RestActionReporter();
ar.setActionDescription("Monitoring Data");
ar.setMessage("");
ar.setSuccess();
String currentInstanceName = System.getProperty("com.sun.aas.instanceName");
boolean isRunningOnDAS = "server".equals(currentInstanceName); //TODO this needs to come from an API. Check with admin team
MonitoringRuntimeDataRegistry monitoringRegistry =habitat.getRemoteLocator().getService(MonitoringRuntimeDataRegistry.class);
TreeNode rootNode = monitoringRegistry.get(currentInstanceName);
//The pathSegments will always contain "domain". Discard it
pathSegments = pathSegments.subList(1, pathSegments.size());
if(!pathSegments.isEmpty()) {
PathSegment lastSegment = pathSegments.get(pathSegments.size() - 1);
if(lastSegment.getPath().isEmpty()) { // if there is a trailing '/' (like monitoring/domain/), a spurious pathSegment is added. Discard it.
pathSegments = pathSegments.subList(0,pathSegments.size() - 1);
}
}
if(!pathSegments.isEmpty() ) {
String firstPathElement = pathSegments.get(0).getPath();
if(firstPathElement.equals(currentInstanceName)) { // Query for current instance. Execute it
//iterate over pathsegments and build a dotted name to look up in monitoring registry
StringBuilder pathInMonitoringRegistry = new StringBuilder();
for(PathSegment pathSegment : pathSegments.subList(1,pathSegments.size()) ) {
if(pathInMonitoringRegistry.length() > 0 ) {
pathInMonitoringRegistry.append('.');
}
pathInMonitoringRegistry.append(pathSegment.getPath().replaceAll("\\.", "\\\\.")); // Need to escape '.' before passing it to monitoring code
}
TreeNode resultNode = pathInMonitoringRegistry.length() > 0 && rootNode != null ?
rootNode.getNode(pathInMonitoringRegistry.toString()) : rootNode;
if (resultNode != null) {
List<TreeNode> list = new ArrayList<TreeNode>();
if (resultNode.hasChildNodes()) {
list.addAll(resultNode.getEnabledChildNodes());
} else {
list.add(resultNode);
}
constructEntity(list, ar);
responseBuilder.entity(new ActionReportResult(ar));
} else {
//No monitoring data, so nothing to list
responseBuilder.status(NOT_FOUND);
ar.setFailure();
responseBuilder.entity(new ActionReportResult(ar));
}
} else { //firstPathElement != currentInstanceName => A proxy request
if(isRunningOnDAS) { //Attempt to forward to instance if running on Das
//TODO validate that firstPathElement corresponds to a valid server name
Properties proxiedResponse = new MonitoringProxyImpl().proxyRequest(uriInfo, Util.getJerseyClient(),
habitat.getRemoteLocator());
ar.setExtraProperties(proxiedResponse);
responseBuilder.entity(new ActionReportResult(ar));
} else { // Not running on DAS and firstPathElement != currentInstanceName => Reject the request as invalid
return Response.status(FORBIDDEN).build();
}
}
} else { // Called for /monitoring/domain/
List<TreeNode> list = new ArrayList<TreeNode>();
if (rootNode != null) {
list.add(rootNode); //Add currentInstance to response
}
constructEntity(list, ar);
if(isRunningOnDAS) { // Add links to instances from the cluster
Domain domain = habitat.getRemoteLocator().getService(Domain.class);
Map<String, String> links = (Map<String, String>) ar.getExtraProperties().get("childResources");
for (Server s : domain.getServers().getServer()) {
if (!s.getName().equals("server")) {// add all non 'server' instances
links.put(s.getName(), getElementLink(uriInfo, s.getName()));
}
}