Liferay Portal plugins can be created, built and packaged for Liferay Portal 6.2 GA2 using the Liferay Maven Plugin module and the Liferay Maven SDK. The Liferay Maven Plugin module contains the Maven archetypes for Liferay Portal plugins and the Liferay Portal theme builder. The Liferay Maven SDK contains the Liferay Portal artifacts (i.e. libraries). To use the latest Liferay Maven Plugin module, consider one of these approaches: 1. Use Maven Central Repository 2. Build From Source & Install in Local Repository 3. Create Liferay Plugin by Using Maven 3.1 Using Maven Command Line 3.2 Using Liferay IDE (Eclipse Based)

1. HowTo: Using Liferay Maven Plugin module with
Liferay Portal 6.2 GA2 -v6.2.1
Liferay Portal plugins can be created, built and packaged for Liferay Portal 6.2 GA2 using the Liferay Maven Plugin module and the Liferay Maven
SDK.
The Liferay Maven Plugin module contains the Maven archetypes for Liferay Portal plugins and the Liferay Portal theme builder.
The Liferay Maven SDK contains the Liferay Portal artefacts (i.e. libraries).
To use the latest Liferay Maven Plugin module, consider one of these approaches:
1. Use Maven Central Repository
Update Maven project definition (POM)
Update Maven settings file with Liferay version and Maven plugin module properties.
If you wish to use <liferay.version>6.2.1</liferay-version> or <liferay-version>6.2.1</liferay-version> you must already have a repository available
and referenced containing these artefacts with the version number as 6.2.1 in your build.username.properties file.
2. Build From Source & Install in Local Repository
Download Liferay Maven packages:
liferay-portal-maven-6.2-ce-ga2-20140326112342532.zip from http://sourceforge.net/projects/lportal/files/Liferay%20Portal/6.2.1
%20GA2/
liferay-maven-support-6.2.1.zip from https://github.com/liferay/liferay-maven-support/archive/6.2.1.zip
Extract downloaded zip files
Install liferay portal artifacts to your local ~/.m2 directory
Install liferay-maven-support artifacts to your local ~/.m2 directory
Verify liferay maven artifacts installation in your .m2 directory:
The and folder should be in ~/.m2/repository/com/liferay directory.maven portal
The archetype-catalog.xml should be in ~/.m2 directory.
3. Create Liferay Plugin by Using Maven
Creating liferay plugin (e.g. portlet, theme, layout, hook, web, ext plugins) using liferay-maven-sdk is intended to be as simple as using Liferay
SDK but in addition it does not limits to a specific folder. You can use maven command line or Liferay IDE
3.1 Using Maven Command Line
NOTE: These property names are based on the Liferay Portal plugin project definition (POM) generated using the Liferay Portal plugin
archetypes.
<?xml version="1.0"?>
<project . . . >
<-- other elements removed for clarity -->
<properties>
<-- other properties removed for clarity -->
<liferay-maven-plugin.version>6.2.1</liferay-maven-plugin.version>
<liferay.version>6.2.1</liferay.version>
</properties>
</project>
$>cd /{your_extracted_directory}/liferay-portal-maven-6.2-ce-ga2
$>ant install
$>cd /{your_extracted_directory}/liferay-maven-support-6.2.1
$>mvn clean install

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The maven command line below is used to create a liferay plugin:
<liferay-plugin-archetype>: It can be:
liferay-portlet-archetype (Liferay portlet archetype)
liferay-theme-archetype (Liferay theme archetype)
liferay-layouttpl-archetype (Liferay layout archetype)
liferay-hook-archetype (Liferay hook archetype)
liferay-web-archetype (Liferay web archetype)
liferay-ext-archetype (Liferay extension archetype)
liferay-servicebuilder-archetype (Liferay Service Builder archetype)
<your-liferay-plugin-name>: You have to follow the plugin name rules below
Liferay Portlet: The portlet is standard web application with these rules:
It contains liferay-plugin-package.properties
It contains liferay-portlet.xml
It contains liferay-display.xml
It contains portlet.xml
The war file name contains “ ” string-portlet
Liferay Theme: The theme is standard web application with these rules:
It contains liferay-plugin-package.properties
The war file name contains “ ” string-theme
Liferay Layout: The layout is standard web application with these rules:
It contains liferay-plugin-package.properties
The war file name contains “ ” string-layouttpl
Liferay Hook: The hook is standard web application with these rules:
It contains liferay-plugin-package.properties
It contains liferay-hook.xml
The war file name contains “ ” string-hook
The war file name doesn’t contain “-portlet” string
Liferay Web: The web plugin is standard web application with these rules:
It requires web.xml and liferay-plugin-package.properties files.
It contains liferay-plugin-package.properties
The war file name contains “ ” string-web
Liferay Service Builder: The service builder is generated with rules:
Create a project.{domain}-portlet-service
Create a project. This project have dependency with {domain-portlet-service} project.{domain}-portlet
Compile & Deploy Liferay Maven Plugin
Go to sample-portlet directory and run
This will compile any classes and packages the portlet war file in target directory.
To deploy the portlet into your Liferay bundle you can run
3.2 Using Liferay IDE (Eclipse Based)
Note: make sure that you already install Liferay maven local repository.
Step 1: Create Maven Project by using: File -> New -> Maven Project
$> mvn archetype:generate -DarchetypeArtifactId= -DarchetypeGroupId=com.liferay.maven.archetypes<liferay-plugin-archetype>
-DarchetypeVersion=6.2.1 -DartifactId= -DgroupId= -Dversion=1.0-SNAPSHOT<your-liferay-plugin-name> <your-package-name>
$> mvn clean package
$> mvn clean package liferay:deploy

3. Step 2: Use default value and click on "Next" button
Step 3: Select "Default Local" for Catalog, and select created archetype (e.g: liferay-portlet-archetype)

4. Step 4: input required information (e.g. group id, artifact id, version, and package,..)
Note: artifact id needs to follow liferay plugin name rules (e.g. the liferay portlet will contain "-portlet" string)

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