private static void list(PathChildrenCache cache) {
if (cache.getCurrentData().size() == 0) {
System.out.println("* empty *");
} else {
for (ChildData data : cache.getCurrentData()) {
System.out.println(data.getPath() + " = " + new String(data.getData()));
}
}
}
@Override
public Object getProperty(String name) {
String fullPath = this.getContext() + "/" + name.replace(".", "/");
byte[] bytes = null;
ChildData data = cache.getCurrentData(fullPath);
if (data != null) {
bytes = data.getData();
}
if (bytes == null) return null;
return new String(bytes, Charset.forName("UTF-8"));
}
protected void findKeys(List<String> keys, String path) {
log.trace("enter findKeysCached for path: " + path);
Map<String, ChildData> children = cache.getCurrentChildren(path);
if (children == null) return;
for (Map.Entry<String, ChildData> entry : children.entrySet()) {
ChildData child = entry.getValue();
if (child.getData() == null || child.getData().length == 0) {
findKeys(keys, child.getPath());
} else {
keys.add(sanitizeKey(child.getPath()));
}
}
log.trace("leaving findKeysCached for path: " + path);
}
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);
}
}
private void dumpDirectly(final String path, final List<String> result) {
for (String each : coordinatorRegistryCenter.getChildrenKeys(path)) {
String zkPath = path + "/" + each;
String zkValue = coordinatorRegistryCenter.get(zkPath);
if (null == zkValue) {
zkValue = "";
}
TreeCache treeCache = (TreeCache) coordinatorRegistryCenter.getRawCache("/" + jobName);
ChildData treeCacheData = treeCache.getCurrentData(zkPath);
String treeCachePath = null == treeCacheData ? "" : treeCacheData.getPath();
String treeCacheValue = null == treeCacheData ? "" : new String(treeCacheData.getData());
if (zkValue.equals(treeCacheValue) && zkPath.equals(treeCachePath)) {
result.add(Joiner.on(" | ").join(zkPath, zkValue));
} else {
result.add(Joiner.on(" | ").join(zkPath, zkValue, treeCachePath, treeCacheValue));
}
dumpDirectly(zkPath, result);
}
}
HostAndPort readAddressOf(String domainName) {
ChildData data = cores.getCurrentData(pathOf(domainName));
return (data == null) ? null : toHostAndPort(data.getData());
}