/*
* add a new resource to the node. E.g. the resource temperature or
* humidity. If the path is /readings/temp, temp will be a subResource
* of readings, which is a subResource of the node.
*/
public ResourceBase addNodeResource(String path) {
Scanner scanner = new Scanner(path);
scanner.useDelimiter("/");
String next = "";
boolean resourceExist = false;
Resource resource = this; // It's the resource that represents the endpoint
ResourceBase subResource = null;
while (scanner.hasNext()) {
resourceExist = false;
next = scanner.next();
for (Resource res : resource.getChildren()) {
if (res.getName().equals(next)) {
subResource = (ResourceBase) res;
resourceExist = true;
}
}
if (!resourceExist) {
subResource = new RDTagResource(next, true, this);
resource.add(subResource);
}
resource = subResource;
}
subResource.setPath(resource.getPath());
subResource.setName(next);
scanner.close();
return subResource;
}
/**
* Creates a new subResource for each resource the node wants register. Each resource is separated
* by ",". E.g. A node can register a resource for reading the temperature and another one for
* reading the humidity.
*/
private boolean updateEndpointResources(String linkFormat) {
Scanner scanner = new Scanner(linkFormat);
scanner.useDelimiter(",");
List<String> pathResources = new ArrayList<String>();
while (scanner.hasNext()) {
pathResources.add(scanner.next());
}
for (String p : pathResources) {
scanner = new Scanner(p);
/*
* get the path of the endpoint's resource. E.g. from
* </readings/temp> it will select /readings/temp.
*/
String path = "", pathTemp = "";
if ((pathTemp = scanner.findInLine("</.*?>")) != null) {
path = pathTemp.substring(1, pathTemp.length() - 1);
} else {
scanner.close();
return false;
}
ResourceBase resource = addNodeResource(path);
/*
* Since created the subResource, get all the attributes from
* the payload. Each parameter is separated by a ";".
*/
scanner.useDelimiter(";");
while (scanner.hasNext()) {
LinkAttribute attr = LinkAttribute.parse(scanner.next());
if (attr.getValue() == null) resource.getAttributes().addAttribute(attr.getName());
else resource.getAttributes().addAttribute(attr.getName(), attr.getValue());
}
resource.getAttributes().addAttribute(LinkFormat.END_POINT, getEndpointIdentifier());
}
scanner.close();
return true;
}
@Override
public void delete() {
LOGGER.info("Removing endpoint: " + getContext());
if (lifetimeTimer != null) {
lifetimeTimer.cancel();
}
if (validationTimer != null) {
validationTimer.cancel();
}
super.delete();
}