This shows you the differences between two versions of the page.
Next revision Both sides next revision | |||
org.gramar.storm.gramar:overview [2016/07/03 12:27] chrisgerken created |
org.gramar.storm.gramar:overview [2016/07/03 12:40] chrisgerken |
||
---|---|---|---|
Line 1: | Line 1: | ||
The **Storm Topology gramar** generates almost the entire implementation of a Storm topology with the following design patterns and features: | The **Storm Topology gramar** generates almost the entire implementation of a Storm topology with the following design patterns and features: | ||
+ | |||
+ | - Strong typing of data on streams | ||
+ | - Spout and bolt implementations factored out into three tiers: Storm-aware, Topology-aware and business logic with strongly typed interfaces between tiers | ||
+ | - Diagrams (generated input to Graphviz) of the topology showing Bolts, Spouts, streams and other middleware | ||
+ | - Fully maven-ized project | ||
+ | - Complete topology driver class that reads one of several named property files, builds the topology and submits that topology either to a local cluster or to a Nimbus server | ||
+ | - Java beans with serialization logic | ||
+ | - A Marshaller class used to convert from Java beans to Values and from Tuples back to Java Beans | ||
+ | - Business logic typed by hand is maintained across re-applications of the gramar, making evolution of the topology very fast and inexpensive |