Perl YAML::Syck encoded string, howto properly decode in Java using JYaml?

Question

Using beanstalkd and putting a job in tube/queue that contains a hash that is YAML::Syck encoded (with $YAML::Syck::ImplicitTyping = 1).

I need some syntax help on the Java end, as to how to decode handle that string pulled from the beanstalkd job. The Perl hash ends up being encoded as a YAML string that looks like this:

--- NameFirst
--- Mike
--- NameLast
--- Smith
--- DOB
--- 07/07/2007

These YAML records (as above) are only processed one at a time. So, given that string above, how in the world do I get JYaml to read that in, and decode into an object class with methods like:

Customer.NameFirst
Customer.NameLast
Customer.DOB

Answer 1

You might consider switching to SnakeYAML. I too generate YAML from Perl via YAML::Syck to be consumed by Java. I ran into some interop problems with JYaml where YAML::Syck was generating valid YAML that JYaml couldn't parse. Since switching to SnakeYAML the only interop problems I've had have been bugs in YAML::Syck. This answer has more details on my experience with SnakeYAML.

Answer 2

I suspect you are doing Dump(%hash) where you should be doing Dump(\%hash). The former dumps an independent list of alternating keys and values; the latter dumps the hash with each value being associated with a key, like:

---
DOB: 07/07/2007
NameFirst: Mike
NameLast: Smith