@Override
public void handle(final NetSocket socket) {
NetClient client = null;
List<String> paths = serviceMap.getPaths();
TcpClientRequestFacade requestFacade = new TcpClientRequestFacade(socket);
String path = pathLoadBalancer.choose(paths, requestFacade);
if (path != null) {
List<ServiceDetails> services = serviceMap.getServices(path);
if (!services.isEmpty()) {
ServiceDetails serviceDetails = serviceLoadBalancer.choose(services, requestFacade);
if (serviceDetails != null) {
List<String> urlStrings = serviceDetails.getServices();
for (String urlString : urlStrings) {
if (Strings.notEmpty(urlString)) {
// lets create a client for this request...
try {
URI uri = new URI(urlString);
// URL url = new URL(urlString);
String urlProtocol = uri.getScheme();
if (Objects.equal(protocol, urlProtocol)) {
Handler<AsyncResult<NetSocket>> handler =
new Handler<AsyncResult<NetSocket>>() {
public void handle(final AsyncResult<NetSocket> asyncSocket) {
NetSocket clientSocket = asyncSocket.result();
Pump.createPump(clientSocket, socket).start();
Pump.createPump(socket, clientSocket).start();
}
};
client = createClient(socket, uri, handler);
break;
}
} catch (MalformedURLException e) {
LOG.warn("Failed to parse URL: " + urlString + ". " + e, e);
} catch (URISyntaxException e) {
LOG.warn("Failed to parse URI: " + urlString + ". " + e, e);
}
}
}
}
}
}
if (client == null) {
// fail to route
LOG.info("No service available for protocol " + protocol + " for paths " + paths);
socket.close();
}
}
protected void treeCacheEvent(PathChildrenCacheEvent event) {
ChildData childData = event.getData();
if (childData == null) {
return;
}
String path = childData.getPath();
PathChildrenCacheEvent.Type type = event.getType();
byte[] data = childData.getData();
if (data == null || data.length == 0 || path == null) {
return;
}
if (path.startsWith(zkPath)) {
path = path.substring(zkPath.length());
}
// Lets just use the group name as the service path.
path = Strings.splitAndTrimAsList(path, "/").get(0);
boolean remove = false;
switch (type) {
case CHILD_ADDED:
case CHILD_UPDATED:
break;
case CHILD_REMOVED:
remove = true;
break;
default:
return;
}
ServiceDTO dto = null;
try {
dto = mapper.readValue(data, ServiceDTO.class);
expandPropertyResolvers(dto);
if (remove) {
LOG.info("Removed gateway service: " + path + ": " + new String(data, "UTF-8"));
serviceMap.serviceRemoved(path, dto);
} else {
LOG.info("Updated gateway service: " + path + ": " + new String(data, "UTF-8"));
serviceMap.serviceUpdated(path, dto);
}
} catch (IOException e) {
LOG.warn("Failed to parse the JSON: " + new String(data) + ". Reason: " + e, e);
} catch (URISyntaxException e) {
LOG.warn("Failed to update URI for dto: " + dto + ", .Reason: " + e, e);
}
}