IntelliJ Plugin Development Tutorial - Get All Packages of a Module

This tutorial shows you how to get all the packages of a selected module in the IntelliJ IDE. When you run this plugin you will have an action button in project viewer. When you right click on a module and click the  "Lak J Show All Packages Action", a message window will show the all package names.

Following are the two files you want work with to create this plugin.

	package com.lakj.comspace.intellij.getpackages;
	import com.intellij.analysis.AnalysisScope;
	import com.intellij.openapi.actionSystem.AnAction;
	import com.intellij.openapi.actionSystem.AnActionEvent;
	import com.intellij.openapi.actionSystem.DataContext;
	import com.intellij.openapi.actionSystem.DataKeys;
	import com.intellij.openapi.module.Module;
	import com.intellij.openapi.project.Project;
	import com.intellij.openapi.ui.Messages;
	import com.intellij.psi.*;
	import java.util.HashSet;
	import java.util.Set;
	/**
	* This action class provides the action to show all the packages in the selected module.
	* Created by Lak J Comspace on 3/5/2015.
	*/
	public class GetModulePackagesAction extends AnAction {
	/**
	* Implement this method to provide your action handler.
	*
	* @param e Carries information on the invocation place
	*/
	@Override
	public void actionPerformed(AnActionEvent e) {
	DataContext dataContext = e.getDataContext();
	final Project project = DataKeys.PROJECT.getData(dataContext);
	final Module module = DataKeys.MODULE.getData(dataContext);
	final Set<String> packageNameSet = new HashSet<String>();
	AnalysisScope moduleScope = new AnalysisScope(module);
	moduleScope.accept(new PsiRecursiveElementVisitor() {
	@Override
	public void visitFile(final PsiFile file) {
	if (file instanceof PsiJavaFile) {
	PsiJavaFile psiJavaFile = (PsiJavaFile) file;
	final PsiPackage aPackage =
	JavaPsiFacade.getInstance(project).findPackage(psiJavaFile.getPackageName());
	if (aPackage != null) {
	packageNameSet.add(aPackage.getQualifiedName());
	}
	}
	}
	});
	String allPackageNames = "";
	for (String packageName : packageNameSet) {
	allPackageNames = allPackageNames + packageName + "\n";
	}
	Messages.showMessageDialog(project, allPackageNames,
	"All packages in selected module", Messages.getInformationIcon());
	}
	}

view raw GetModulePackagesAction.java hosted with ❤ by GitHub

	<idea-plugin version="2">
	<id>com.lakj.comspace.intellij.getmodulepackages</id>
	<name>Lak J Get Module Packages Action</name>
	<version>1.0</version>
	<vendor email="" url="http://lakjeewa.blogspot.com/">Lak J Comspace</vendor>
	<description><![CDATA[
	Enter short description for your plugin here.<br>
	<em>most HTML tags may be used</em>
	]]></description>
	<change-notes><![CDATA[
	Add change notes here.<br>
	<em>most HTML tags may be used</em>
	]]>
	</change-notes>
	<!-- please see http://confluence.jetbrains.com/display/IDEADEV/Build+Number+Ranges for description -->
	<idea-version since-build="131"/>
	<!-- please see http://confluence.jetbrains.com/display/IDEADEV/Plugin+Compatibility+with+IntelliJ+Platform+Products
	on how to target different products -->
	<!-- uncomment to enable plugin in all products
	<depends>com.intellij.modules.lang</depends>
	-->
	<extensions defaultExtensionNs="com.intellij">
	<!-- Add your extensions here -->
	</extensions>
	<application-components>
	<!-- Add your application components here -->
	</application-components>
	<project-components>
	<!-- Add your project components here -->
	</project-components>
	<actions>
	<group id="lakj.comspace">
	<action
	id="lakj.comspace.getmodulepackages"
	class="com.lakj.comspace.intellij.getpackages.GetModulePackagesAction"
	text="Lak J Show All Packages Action"
	description="Get all packages of the selected module."
	icon="/com/lakj/comspace/intellij/getpackages/resources/icon/icon.png"/>
	<add-to-group anchor="after" group-id="ProjectViewPopupMenu" relative-to-action="AnalyzeMenu"/>
	</group>
	</actions>
	</idea-plugin>

view raw plugin.xml hosted with ❤ by GitHub

Following are the GitHub URL's for complete plugin project. You can clone the project or downolad the project as a zip file. To run the project open IntelliJ IDEA and import the project.

GitHub repository URL - https://github.com/lakjcomspace/IntelliJGetModulePackages
GitHub HTTPS clone URL - https://github.com/lakjcomspace/IntelliJGetModulePackages.git
Download Project as a Zip - https://github.com/lakjcomspace/IntelliJGetModulePackages/archive/master.zip