Goals: Add links that are reasonable and good explanations of how stuff works. No hype and no vendor content if possible. Practical first-hand accounts of models in prod eagerly sought.
Mohnish Kodnani mohnishkodnani
johnynek
/ scala path dependent serializers.scala
Last active
July 17, 2018 21:16
Scala's path dependent types can be used to prove that a serialized value can be deserialized without having to resort to Try/Either/Option. This puts the serialized value into the type, so we can be sure we won't fail. This is very useful for distributed compute settings such as scalding or spark.
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| import scala.util.Try | |
| object PathSerializer { | |
| trait SerDe[A] { | |
| // By using a path dependent type, we can be sure can deserialize without wrapping in Try | |
| type Serialized | |
| def ser(a: A): Serialized | |
| def deser(s: Serialized): A | |
| // If we convert to a generic type, in this case String, we forget if we can really deserialize |
bastman
/ docker-cleanup-resources.md
Created
March 31, 2016 05:55
docker cleanup guide: containers, images, volumes, networks
Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...
// see: https://github.com/chadoe/docker-cleanup-volumes
$ docker volume rm $(docker volume ls -qf dangling=true)
$ docker volume ls -qf dangling=true | xargs -r docker volume rm
aslakknutsen
/ start_testing_java8_today.asciidoc
Last active
October 2, 2024 15:10
Example of how to use both JDK 7 and JDK 8 in one build.
Most of us won’t be able to use/deploy JDK 8 in production for a looong time. But that shouldn’t stop us from using it, right?
It should be possible to sneak in JDK 8 in the back way, the same way we snuck in Groovy and other libraries we wanted to use.