CODEWITHSUNDEEP
javaapache-zookeeperapache-curator
Cody S
Cody S

Reputation: 4824

How do I check if a path exists in Zookeeper using Curator?

I'm currently in the early stages of development to integrate Zookeeper stuff into my app. I'm using Netflix's Curator as an API for dealing with Zookeeper. I get the gist of most of it (like adding ZNodes and whatnot).

But how the heck do you check if a ZNode exists? The code that seems like it would work is:

client.checkExists().forPath(path);

...Where client is an instance of com.netflix.curator.framework.CuratorFramework

However, this call returns a org.apache.zookeeper.data.Stat object.

Using this object, how can I tell if a path exists or not?

Thanks

Upvotes: 22

Views: 15230

Answers (1)

willglynn
willglynn

Reputation: 11520

The org.apache.zookeeper.data.Stat object is metadata about that ZNode. (It's conceptually similar to how stat() tells you information about a file on the filesystem, hence the name.) checkExists().forPath() returns a Stat if it exists, or null if it doesn't.

Upvotes: 36

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