public void update(PathChildrenCacheEvent event) {
LOGGER.debug("{}", event);
String domain = ZKPaths.getNodeFromPath(event.getData().getPath());
switch (event.getType()) {
case CHILD_ADDED:
try {
if (shouldConnectTo(domain)) {
connectors.put(
domain, startConnector(domain, toHostAndPort(event.getData().getData())));
}
} catch (ExecutionException e) {
LOGGER.error("Failed to start tunnel connector to {}: {}", domain, e.getCause());
} catch (InterruptedException ignored) {
}
break;
case CHILD_REMOVED:
String cell = connectors.remove(domain);
if (cell != null) {
getNucleus().kill(cell);
}
break;
}
}
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);
}
}