Maven Basic Concepts

• The result of the command ”mvn archetype:generate -B -DgroupId=edu.eci -DartifactId=file-spy” explain these parameters.
  • 
• Parameter basedir: project location
• Parameter package: take the compile code and package it in a format.
• Parameter groupid: identifies the project
• Parameter artifactid: if the name of the jar
• Parameter version: project version
• The option -B disable the output color.
• The option -D define the system properties.
• The content of the directory have a pom.xml, and the folders that java create with the parameters
  • 

POM FILES

-The word SNAPSHOT means the version of the project that is in development but the word SNAPSHOT is not important for maven. -Pom packaging is simply a specification that is used to aggregate another project, it’s not a plugin is a phase.
-The dependency plugin provides the capability to manipulate artifacts and defines a set of dependencies that the project will fetch from the Maven Repository

Dependency Management

• I add the tika-core dependency into the tag of dependencies in the pom.xml file, the command tika-core is present below:

  org.apache.tika tika-core 1.20

Then, i add another pluggin in the pom.xml where i change the java version for building the project to 1.8 using this comand below:

<build>
    <plugins>
		<plugin>
			<groupId>org.apache.maven.plugins</groupId>
			<artifactId>maven-compiler-plugin</artifactId>
			<configuration>
				<source>1.8</source>
				<target>1.8</target>
			</configuration>
		</plugin>
	</plugins>
</build>

Later, i add the class FileSpy replacing the the app class provided in the maven project.

Building Lifecycles and Plugins

• The default lifecycle handles your project deployment, the clean lifecycle handles project cleaning, while the site lifecycle handles the creation of your project's site documentation.
• mvn compile
  • 
  • this command is using for compile the source code of the project
  • Transitive dependencies are dependencies that are dependencies of your direct dependencies.
• mvn package
  • 
  • This command is using to take the compiled code and package it in its distributable format.
• mvn install
  • 
  • This command is usuing for install the package into the local repository, for use as a dependency in other projects locally

Then I create a new project in the same project called another-maven-project, I will use file-spyas a dependency and execute it and I add the same pom.xmlusing as before with the file-spy dependency present bellow:

<dependency>
	<groupId>edu.eci</groupId>
	<artifactId>file-spy</artifactId>
	<version>1.0-SNAPSHOT</version>
</dependency>

Then i execute the file-spy application using this command mvn exec:java -Dexec.mainClass="edu.eci.FileSpy"

•