Contents

Preface

1 Starting Your Project with Leiningen

Assumptions

Benefits

The Recipe—Windows

The Recipe—Mac

Conclusion

Postscript—Setting Up a JDK on a Mac

Postscript—Setting Up a JDK on Windows

2 Packaging Clojure for a Java EE Environment

Assumptions

Benefits

The Recipe—Common

Conclusion

Postscript—Setting Up Tomcat on a Mac

Postscript—Setting Up Tomcat on Windows

3 Creating a REST Server in Compojure

Assumptions

Benefits

The Recipe—Code

Testing the Solution

Notes on the Recipe

Conclusion

4 Creating a REST Server with Liberator

Assumptions

Benefits

The Recipe—Code

Testing the Solution

Notes on the Recipe

Context

Origins

REST Hypermedia

Conclusion

5 A REST Client in ClojureScript

Assumptions

Benefits

The Recipe—Code

Testing the Solution

Notes on the Recipe

Conclusion

6 A Simple JSON Server

Assumptions

Benefits

The Recipe—Code

Testing the Solution

Notes on the Recipe

Conclusion

7 A Simple Server Using the Pedestal Framework

Assumptions

Benefits

Context

The Recipe—Code

Testing the Solution

Notes on the Recipe

Conclusion

8 A Stock Ticker on the Pedestal Framework Server

Assumptions

Benefits

The Recipe—Code

Testing the Solution

Notes on the Recipe

Conclusion

9 Simplifying Logging with a Macro

Assumptions

Benefits

The Recipe—Code

Testing the Solution

Notes on the Recipe

Conclusion

10 Extending the Compiler with a Macro

Assumptions

Benefits

The Recipe—Code

Testing the Solution

Notes on the Recipe

Conclusion

11 Simplifying Datomic Syntax by Writing a DSL

Assumptions

Benefits

The Recipe—Code

Testing the Solution

Testing Create Schema

Testing Add Datom

Testing Create Nested Schema

Testing Add Nested Datom

Notes on the Recipe

create.clj

create_test.clj

add.clj

add_test.clj

create_nested.clj

create_nested_test.clj

add_nested.clj

add_nested_test.clj

Conclusion

12 Reading the SASS DSL and Generating CSS with Clojure Zippers

Assumptions

Benefits

Outline—Features of SASS

The Recipe—Code

Testing the Solution

Notes on the Recipe

Conclusion

13 Introduction to Cascalog

Assumptions

Benefits

The Recipe—Code

Testing the Solution

Notes on the Recipe

Conclusion

14 Cascalog and Hadoop

Assumptions

Benefits

The Recipe—Code

Testing the Solution

Conclusion

Postscript—Setting Up Hadoop on a Mac

Postscript—Setting Up Hadoop on a Windows Machine

15 Loading a Data File into Cascalog

Assumptions

Benefits

The Recipe—Code

Testing the Solution

Conclusion

16 Writing Out a Data File with Cascalog

Assumptions

Benefits

The Recipe—Code

Testing the Solution

Notes on the Recipe

Conclusion

17 Cascalog and Structured Data

Assumptions

Benefits

The Recipe—Code

Testing the Recipe

Notes on the Solution

Conclusion

18 Loading Custom Data Formats into Cascalog

Assumptions

Benefits

The Recipe—Code

Testing the Recipe

Notes on the Solution

Conclusion

19 Connecting to Datomic from Your Application

Assumptions

Benefits

The Recipe—Code

Getting Set Up

Connecting to Datomic in the Shell

Loading Schema and Data

Connecting to Datomic from Clojure

Connecting to Datomic from Java

Connecting to Datomic from a REST Client

Conclusion

20 Getting Started with Storm

Assumptions

Benefits

The Recipe—Code

Testing the Recipe

Notes on the Recipe

Conclusion

21 Getting Started with JMS in Clojure

Assumptions

Benefits

The Recipe—Code

Testing the Recipe

Notes on the Recipe

Conclusion

22 Integrating Storm and JMS

Assumptions

Benefits

The Recipe—Code

Testing the Recipe

Notes on the Recipe

Conclusion

23 A CSV Reader

Assumptions

Benefits

The Recipe—Code

Testing the Solution

Notes on the Recipe

Conclusion

24 Detecting Errors with a Log Monitoring Application

Assumptions

Benefits

The Recipe—Code

Testing the Solution

Notes on the Recipe

Conclusion

25 Bundling Clojure as an Ant Plug-in

Assumptions

Benefits

The Recipe—Code

Testing the Recipe

Notes on the Recipe

Conclusion

Postscript—Installing Ant on a Mac

26 Bundling Clojure as a Maven Plug-in

Assumptions

Benefits

The Recipe—Code

Testing the Recipe

Notes on the Recipe

Conclusion

27 Integrating Clojure by Scripting Web Tests

Assumptions

Benefits

The Recipe—Code

Testing the Recipe

Notes on the Recipe

Conclusion

28 Monitoring Availability with a Website Status Checker

Assumptions

Benefits

The Recipe—Code

Testing the Recipe

Notes on the Recipe

Conclusion

A Debugging Macros

Assumptions

Benefits

The Recipe

A Simple Approach—Expansion-Time and Evaluation-Time stdout

Some Macro Helper Functions

Read and Evaluate—A More Developed Mental Model

Reading

Evaluating

Conclusion

Index