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Posts Tagged ‘Jonathan Lalou’

PostHeaderIcon “Android Application Development with Maven” by Patroklos Papapetrou and Jonathan Lalou, was published by Packt

Abstract

I am glad and proud to announce the publication of “Android Application Development with Maven”, on March 15th 2015, by Packt.

Direct link: https://www.packtpub.com/apache-maven-dependency-management/book

Alternate locations: Amazon.com, Amazon.co.uk, Barnes & Noble.

On this occasion, I’d like to thank all Packt team for allowing me achieving this project.

What you will learn from this book

  • Integrate Maven with your favorite Android IDE
  • Install and configure Maven with your local development environment
  • Create the proper Maven structure for both standalone Android applications or applications that are part of a bigger project
  • Run unit tests using popular frameworks such as Robolectric and collect coverage information using Maven plugins
  • Configure a variety of different tools such as Robotium, Spoon, and Selendroid to run integration tests
  • Handle dependencies and different versions of the same application
  • Manage and automate the release process of your application inside/outside Google Play
  • Discover new tools such as Eclipse, IntelliJ IDEA/Android Studio, and NetBeans, which perfectly integrate with Maven and boost your productivity

In Detail

Android is an open source operating system used for smartphones and tablet computers. The Android market is one of the biggest and fastest growing platforms for application developers, with over a million apps uploaded every day.

Right from the beginning, this book will cover how to set up your Maven development environment and integrate it with your favorite IDE. By sequentially working through the steps in each chapter, you will quickly master the plugins you need for every phase of the Android development process. You will learn how to use Maven to manage and build your project and dependencies, automate your Android application testing plans, and develop and maintain several versions of your application in parallel. Most significantly, you will learn how to integrate your project into a complete factory.

Approach

Learn how to use and configure Maven to support all phases of the development of an Android application

Who this book is for

Android Application Development with Maven is intended for Android developers or devops engineers who want to use Maven to effectively develop quality Android applications. It would be helpful, but not necessary, if you have some previous experience with Maven.

Table of content

  • 1: Beginning with the Basics
  • 2: Starting the Development Phase
  • 3: Unit Testing
  • 4: Integration Testing
  • 5: Android Flavors
  • 6: Release Life Cycle and Continuous Integration
  • 7: Other Tools and Plugins

PostHeaderIcon “Apache Maven Dependency Management” by Jonathan Lalou, was published by Packt

Abstract

I am glad and proud to announce the publication of “Apache Maven Dependency Management”, by Packt.

Direct link: https://www.packtpub.com/apache-maven-dependency-management/book

Alternate locations: Amazon.com, Amazon.co.uk, Barnes & Noble.

On this occasion, I’d like to thank all Packt team for allowing me achieving this project.

What you will learn from this book

  • Learn how to use profiles, POM, parent POM, and modules
  • Increase build-speed and decrease archive size
  • Set, rationalize, and exclude transitive dependencies
  • Optimize your POM and its dependencies
  • Migrate projects to Maven including projects with exotic dependencies

In Detail

Managing dependencies in a multi-module project is difficult. In a multi-module project, libraries need to share transitive relations with each other. Maven eliminates this need by reading the project files of dependencies to figure out their inter-relations and other related information. Gaining an understanding of project dependencies will allow you to fully utilize Maven and use it to your advantage.

Aiming to give you a clear understanding of Maven’s functionality, this book focuses on specific case studies that shed light on highly useful Maven features which are often disregarded. The content of this book will help you to replace homebrew processes with more automated solutions.

This practical guide focuses on the variety of problems and issues which occur during the conception and development phase, with the aim of making dependency management as effortless and painless as possible. Throughout the course of this book, you will learn how to migrate from non-Maven projects to Maven, learn Maven best practices, and how to simplify the management of multiple projects. The book emphasizes the importance of projects as well as identifying and fixing potential conflicts before they become issues. The later sections of the book introduce you to the methods that you can use to increase your team’s productivity. This book is the perfect guide to help make you into a proud software craftsman.

Approach

An easy-to-follow, tutorial-based guide with chapters progressing from basic to advanced dependency management.

Who this book is for

If you are working with Java or Java EE projects and you want to take advantage of Maven dependency management, then this book is ideal for you. This book is also particularly useful if you are a developer or an architect. You should be well versed with Maven and its basic functionalities if you wish to get the most out of this book.

Table of content

  • Preface
  • Chapter 1: Basic Dependency Management
  • Chapter 2: Dependency Mechanism and Scopes
  • Chapter 3: Dependency Designation (advanced)
  • Chapter 4: Migration of Dependencies to Apache Maven
  • Chapter 5: Tools within Your IDE
  • Chapter 6: Release and Distribute
  • Appendix: Useful Public Repositories
  • Index

PostHeaderIcon (quick tutorial) Migration from MySQL to HSQLDB

Case

I got the project described in MK Yong’s website. This projects is a sample code of JSF + Spring + Hibernate. The laying DB is a MySQL. For many reasons, I’d rather not to detail, I prefered to a HSQLDB instead of the MySQL.

(Notice: the zip you can download at MK Yong’s website contains many errors, not related to the persistance layer but to JSF itself.)

How to migrate any project from MySQL to HSQLDB?

Solution

You have to follow these steps:

Maven

In the pom.xml, replace:

<!-- MySQL database driver -->
        <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.9</version>
        </dependency>

with:

        <!-- driver for HSQLdb -->
        <dependency>
            <groupId>org.hsqldb</groupId>
            <artifactId>hsqldb</artifactId>
            <version>2.2.8</version>
        </dependency>

By the way, you can add Jetty plugin to have shorter development cycles:

            <plugin>
                <groupId>org.mortbay.jetty</groupId>
                <artifactId>maven-jetty-plugin</artifactId>
                <configuration>
                    <webApp>${basedir}/target/jsf.war</webApp>
                    <port>8088</port>
                </configuration>
            </plugin>

Persistence

Properties

Replace the content of db.properties file with:

jdbc.driverClassName=org.hsqldb.jdbcDriver
jdbc.url=jdbc:hsqldb:hsql://localhost:9001
jdbc.username=sa
jdbc.password=

Hibernate Mapping

In the *.hbm.xml files:

  • in the tag <class>, remove the attribute catalog="..."
  • replace the types with fully qualified object types, eg:
    • long with java.lang.Long,
    • string with java.lang.String,
    • timestamp with java.util.Date,
    • etc.

Hibernate Properties

For the property of key hibernate.dialect, replace the value: org.hibernate.dialect.MySQLDialectorg.hibernate.dialect.HSQLDialect with the value: org.hibernate.dialect.HSQLDialect.
To match my needs, I tuned Hibernate properties a bit more, but it may not be needed in all situations:

        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.HSQLDialect</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hbm2ddl.auto">create-drop</prop>
                <prop key="hibernate.hbm2ddl.auto">create-drop</prop>
                <prop key="connection.pool_size">1</prop>
                <prop key="current_session_context_class">thread</prop>
                <prop key="cache.provider_class">org.hibernate.cache.NoCacheProvider</prop>
            </props>
        </property>

Run

Run the HSQLDB server. IMHO, the quickest is to run the following Maven command:

mvn exec:java -Dexec.mainClass="org.hsqldb.Server"

But you may prefer the old school java -cp hsqldb-XXX.jar org.hsqldb.Server ;-).

Tip! To get a GUI to check the content of the DB instance, you can run:

mvn exec:java -Dexec.mainClass="org.hsqldb.util.DatabaseManager"

Then build and launch Jetty:

mvn clean install jetty:run-exploded

Here you can see the great feature of HSQLDB, that will allow you to create, alter and delete tables on the fly (if hibernate.hbm2ddl.auto is set to create-drop), without any SQL scripts, but only thanks to HBM mapping files.

PostHeaderIcon Certified Scrum Master!

From now and then, I am certified Scrum Master. Certified Scrum Master

I attended the training lead by Jeff Sutherland (co-founder of Scrum method, CEO of Scrum Inc.).
Jeff gathers both practical knowledge from his personnal experience, and a deep work of research and reflexion on IT and processes around IT. As s skilled manager, engineer and orator, his training brings a lot of information and added value. Many thanks to him!

I’d like to thank Xebia France for their welcome, and, of course, Sungard Global Services and the BKN “Lean and Agile” for investing in its architects continuous improvement.

Jonathan LALOU and Jeff Sutherland - Paris, France, December 13th 2011

PostHeaderIcon How to export Oracle DB content to DBUnit XML flatfiles?

Case

From an Agile and TDD viewpoint, performing uni tests on DAO is a requirement. Sometimes, instead of using DBUnit datasets “out of the box”, the developper need test on actual data. In the same vein, when a bug appears on production, isolating and reproducing the issue is a smart way to investigate, and, along the way, fix it.
Therefore, how to export actual data from Oracle DB (or even MySQL, Sybase, DB2, etc.) to a DBUnit dataset as a flat XML file?

Here is a Runtime Test I wrote on this subject:

Fix

Spring

Edit the following Spring context file, setting the login, password, etc.

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">

    <!-- don't forget to write this, otherwise the application will miss the driver class name, and therfore the test will fail-->
    <bean id="driverClassForName" class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
        <property name="targetClass" value="java.lang.Class"/>
        <property name="targetMethod" value="forName"/>
        <property name="arguments">
            <list>
                <value>oracle.jdbc.driver.OracleDriver</value>
            </list>
        </property>
    </bean>
    <bean id="connexion" class="org.springframework.beans.factory.config.MethodInvokingFactoryBean"
          depends-on="driverClassForName">
        <property name="targetClass" value="java.sql.DriverManager"/>
        <property name="targetMethod" value="getConnection"/>
        <property name="arguments">
            <list>
                <value>jdbc:oracle:thin:@host:1234:SCHEMA</value>
                <value>myLogin</value>
                <value>myPassword</value>
            </list>
        </property>
    </bean>

    <bean id="databaseConnection" class="org.dbunit.database.DatabaseConnection">
        <constructor-arg ref="connexion"/>
    </bean>
    <bean id="queryDataSet" class="org.dbunit.database.QueryDataSet">
        <constructor-arg ref="databaseConnection"/>
    </bean>
</beans>

The bean driverClassForName does not look to be used ; anyway, if Class.forName("oracle.jdbc.driver.OracleDriver") is not called, then the test will raise an exception.
To ensure driverClassForName is created before the bean connexion, I added a attribute depends-on="driverClassForName". The other beans will be created after connexion, since Spring will deduce the needed order of creation via the explicit dependency tree.

Java

public class Oracle2DBUnitExtractor extends TestCase {
    private QueryDataSet queryDataSet;

    @Before
    public void setUp() throws Exception {
        final ApplicationContext applicationContext;

        applicationContext = new ClassPathXmlApplicationContext(
                "lalou/jonathan/Oracle2DBUnitExtractor-applicationContext.xml");
        assertNotNull(applicationContext);

        queryDataSet = (QueryDataSet) applicationContext.getBean("queryDataSet");

    }

    @Test
    public void testExportTablesInFile() throws DataSetException, IOException {
    // add all the needed tables ; take care to write them in the right order, so that you don't happen to fall on dependencies issues, such as ones related to foreign keys
    
        queryDataSet.addTable("MYTABLE");
        queryDataSet.addTable("MYOTHERTABLE");
        queryDataSet.addTable("YETANOTHERTABLE");

        // Destination XML file into which data needs to be extracted
        FlatXmlDataSet.write(queryDataSet, new FileOutputStream("myProject/src/test/runtime/lalou/jonathan/output-dataset.xml"));

    }
}