@Override
public void sendRequest(Exchange exchange, Request request) {
if (request.getToken() == null) request.setToken(createNewToken());
// if (exchange.getCurrentRequest().getToken() == null)
// throw new NullPointerException("Sending request's token cannot be null, use byte[0] for
// empty tokens");
super.sendRequest(exchange, request);
}
/*
* Sends a GET request to itself
*/
public static void selfTest() {
try {
Request request = Request.newGet();
request.setURI("localhost:5683/benchmark");
request.send();
Response response = request.waitForResponse(1000);
System.out.println("received " + response);
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
public void execute(Request request) throws IOException {
if (request != null) {
request.setURI(this.uri);
// execute the request
request.execute();
}
}
/**
* Updates the endpoint parameters from POST and PUT requests.
*
* @param request A POST or PUT request with a {?et,lt,con} URI Template query and a Link Format
* payload.
*/
public boolean setParameters(Request request) {
LinkAttribute attr;
String newEndpointType = "";
int newLifeTime = NetworkConfig.getStandard().getInt("RD_DEFAULT_LIFETIME");
String newContext = "";
/*
* get lifetime from option query - only for PUT request.
*/
List<String> query = request.getOptions().getURIQueries();
for (String q : query) {
// FIXME Do not use Link attributes for URI template variables
attr = LinkAttribute.parse(q);
if (attr.getName().equals(LinkFormat.END_POINT_TYPE)) {
newEndpointType = attr.getValue();
}
if (attr.getName().equals(LinkFormat.LIFE_TIME)) {
newLifeTime = attr.getIntValue();
if (newLifeTime < 60) {
LOGGER.warning("Enforcing minimal RD lifetime of 60 seconds (was " + newLifeTime + ")");
newLifeTime = 60;
}
}
if (attr.getName().equals(LinkFormat.CONTEXT)) {
newContext = attr.getValue();
}
}
setEndpointType(newEndpointType);
setLifeTime(newLifeTime);
// TODO check with draft authors if update should be atomic
if (newContext.equals("")) {
context = "coap://" + request.getSource() + ":" + request.getSourcePort();
} else {
Request checkRequest = Request.newGet();
try {
checkRequest.setURI(context);
} catch (Exception e) {
LOGGER.warning(e.toString());
return false;
}
}
return updateEndpointResources(request.getPayloadString());
}
@Override
public void run() {
LOGGER.info("Validating endpoint: " + getContext());
Request validationRequest = Request.newGet();
validationRequest.setURI(getContext() + "/.well-known/core");
if (etag != null) {
validationRequest.getOptions().addETag(etag);
}
Response response = null;
try {
validationRequest.send();
response = validationRequest.waitForResponse();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if (response == null) {
delete();
} else if (response.getCode() == ResponseCode.VALID) {
LOGGER.fine("Resources up-to-date: " + getContext());
} else if (response.getCode() == ResponseCode.CONTENT) {
List<byte[]> etags = response.getOptions().getETags();
if (!etags.isEmpty()) {
etag = etags.get(0);
}
updateEndpointResources(response.getPayloadString());
setLifeTime(lifeTime);
LOGGER.fine("Updated Resources: " + getContext());
}
}