Arnauld

package steam.util

import collection.mutable.ListBuffer

/**
 * A glob pattern is specified as a string and is matched against other strings,
 * such as directory or file names. Glob syntax follows several simple rules:
 * <ul>
 *   <li>
 *     An asterisk, *, matches any number of characters (including none).

Arnauld

List all user based library and clean up!

$ ghc-pkg list > ghc-pkg.list && subl ghc-pkg.list

$ ghc-pkg unregister --user --force unordered-containers-0.1.4.6
$ ghc-pkg unregister --user --force vector-0.9.1
$ ghc-pkg unregister --user --force xml-conduit-0.5.2
$ ghc-pkg unregister --user --force xml-types-0.3.1
$ ghc-pkg unregister --user --force yaml-0.5.2

$ ...

Arnauld

//--- Constraint.java
package grid;

import java.util.regex.Pattern;

/**
* @author <a href="http://twitter.com/aloyer">@aloyer</a>
*/
public class Constraint {
    private final Pattern pattern;

Arnauld

Scenario: Create an invoice
  Given an authenticated admin
  And a new client with an associated work unit
  When the global invoiced is set with a valid value
  Then the new client should not appear anymore

Arnauld

TIPS - Process

Communication, communication, communication

• Bridge the communication gap between business and technology
• Faster feedback

Get Involved Early

Arnauld

import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer;
import org.springframework.beans.factory.xml.XmlBeanDefinitionReader;
import org.springframework.context.ApplicationContextInitializer;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.core.io.Resource;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;

Arnauld

package sequencer;

import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.function.Supplier;

/**
 * @author <a href="http://twitter.com/aloyer">@aloyer</a>

Arnauld

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.technbolts</groupId>
    <artifactId>nethack</artifactId>
    <version>1.0-SNAPSHOT</version>

Arnauld

Handlers

In Domain Driven Design, there are a series of small services that sit over the top of the domain. These services known as Application Services act as a facade over the the domain model. In CQRS based systems a similar pattern is used but it has been slightly refined. The refining of this pattern can be employed successfully in both systems that use CQRS and systems that stay using a single model for supporting reads and writes as many of the advantages come from simplicity of composition. To show Command Handlers, it is best to start with a typical Application Service and refactor our way to a Command Handler.

The Application Service

A stereotypical Application Service represents a given use case of the model. The Application Service itself generally does not directly implement the use case but instead coordinates objects from the domain to meet the requirements of the use case. This sounds like a small distinction but it is  a very important one, Application Services generally should not have "l

Arnauld

import java.io.ByteArrayOutputStream;
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintStream;
import java.util.*;

/**
 *
 */