public override async Task process(WatchedEvent @event)
{
if (@event.getPath() == "/nscrapy/conf")
{
var newConfig = await ZkHelper.GetAsync(@event.getPath());
string configFromZK = $"appsetting.zk.{DateTime.Now.ToString("yyyy-MM-dd HH.mm.ss.ms")}.json";
using (var fs = File.OpenWrite(Path.Combine(Directory.GetCurrentDirectory(), configFromZK)))
{
var content = Encoding.UTF8.GetBytes(newConfig);
fs.Write(content, 0, content.Length);
}
if (NScrapyContext.CurrentContext != null)
{
NScrapyContext.CurrentContext.RefreshConfigFile(configFromZK);
}
}
}
public string GetConfigFilePath()
{
//Copy the config from zookeeper, and return the config name in local
var configContent = ZkHelper.GetAsync("/nscrapy/conf").Result;
string configFromZK = $"appsetting.zk.{DateTime.Now.ToString("yyyy-MM-dd HH.mm.ss.ms")}.json";
if (string.IsNullOrEmpty(configContent))
{
//Return default if no config found in ZK
return("appsetting.json");
}
using (var fs = File.OpenWrite(Path.Combine(Directory.GetCurrentDirectory(), configFromZK)))
{
var content = Encoding.UTF8.GetBytes(configContent);
fs.Write(content, 0, content.Length);
}
//Use ZK Get to register the watcher again
ZkHelper.GetAsync("/nscrapy/conf");
return(configFromZK);
}