<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE api-answers PUBLIC "-//NetBeans//DTD Arch Answers//EN" "../nbbuild/antsrc/org/netbeans/nbbuild/Arch.dtd" [

  <!ENTITY api-questions SYSTEM "../nbbuild/antsrc/org/netbeans/nbbuild/Arch-api-questions.xml">

]>

<api-answers

  question-version="1.29"

  author="yourname@netbeans.org"

>

  &api-questions;

<!--

        <question id="arch-overall" when="init">

            Describe the overall architecture. 

            <hint>

            What will be API for 

            <a href="http://wiki.netbeans.org/API_Design#Separate_API_for_clients_from_support_API">

                clients and what support API</a>? 

            What parts will be pluggable?

            How will plug-ins be registered? Please use <code>&lt;api type="export"/&gt;</code>

            to describe your general APIs and specify their

            <a href="http://wiki.netbeans.org/API_Stability#Private">

            stability categories</a>.

            If possible please provide simple diagrams.

            </hint>

        </question>

-->

 <answer id="arch-overall">

   <p>The purpose of this module is to provide an easy way to read and set Maven

      plugin parameters in POM.xml project file without having implementation

      dependencies on several Maven modules.

  </p>

  <p>

    </p>

 </answer>

<!--

        <question id="arch-quality" when="init">

            How will the <a href="http://www.netbeans.org/community/guidelines/q-evangelism.html">quality</a>

            of your code be tested and 

            how are future regressions going to be prevented?

            <hint>

            What kind of testing do

            you want to use? How much functionality, in which areas,

            should be covered by the tests? How you find out that your

            project was successful?

            </hint>

        </question>

-->

 <answer id="arch-quality">

  <p>

   All public API methods will be covered by unit tests.

  </p>

 </answer>

<!--

        <question id="arch-time" when="init">

            What are the time estimates of the work?

            <hint>

            Please express your estimates of how long the design, implementation,

            stabilization are likely to last. How many people will be needed to

            implement this and what is the expected milestone by which the work should be 

            ready?

            </hint>

        </question>

-->

 <answer id="arch-time">

  <p>

   2 man days.

  </p>

 </answer>

<!--

        <question id="arch-usecases" when="init">

            <hint>

                Content of this answer will be displayed as part of page at

                http://www.netbeans.org/download/dev/javadoc/usecases.html 

                You can use tags <usecase name="name> regular html description </usecase>

                and if you want to use an URL you can prefix if with @TOP@ to begin

                at the root of your javadoc

            </hint>

            Describe the main <a href="http://wiki.netbeans.org/API_Design#The_Importance_of_Being_Use_Case_Oriented">

            use cases</a> of the new API. Who will use it under

            what circumstances? What kind of code would typically need to be written

            to use the module?

        </question>

-->

 <answer id="arch-usecases">

  <p>

   The main use case is implementing a panel to be added to Maven project properties

      window to adjust properties of a Maven plugin used in that project.

  </p>

  <pre>

import org.netbeans.modules.maven.util.MavenCategoryProvider;

@MavenCategoryProvider.Registration(artifactId = "my-special-artifactd", groupId = "my.special.maven.groupid")

public class ProjectCustomizerImpl extends MavenCategoryProvider {

    @Override

    public ProjectCustomizer.Category createCategory( Lookup lkp ) {

      //will be called only when the Maven project contains plugin with my.special.maven.groupid and my-special-artifactd

    }

    @Override

    public JComponent createComponent( ProjectCustomizer.Category ctgr, Lookup lkp ) {

      return new MyCustomizerPanel( ctgr, getPluginParameters() );

    }

}

class MyCustomizerPanel extends JPanel {

    MyCustomizerPanel( ProjectCustomizer.Category category, final MavenPluginParameters pluginParameters ) {

        Object initialValue = pluginParameters.getParameter( "myParamName", "myplugin.myproperty.name" );

        category.setOkButtonListener(new ActionListener() {

            @Override

            public void actionPerformed( ActionEvent e ) {

                pluginParameters.setParameter( "myParamName", "some value" );

            }

        } );

    }

}

  </pre>

 </answer>

<!--

        <question id="arch-what" when="init">

            What is this project good for?

            <hint>

            Please provide here a few lines describing the project, 

            what problem it should solve, provide links to documentation, 

            specifications, etc.

            </hint>

        </question>

-->

 <answer id="arch-what">

  <p>

   Read and set Maven project properties.

  </p>

 </answer>

<!--

        <question id="arch-where" when="impl">

            Where one can find sources for your module?

            <hint>

                Please provide link to the Hg web client at

                http://hg.netbeans.org/

                or just use tag defaultanswer generate='here'

            </hint>

        </question>

-->

 <answer id="arch-where">

  <defaultanswer generate='here' />

 </answer>

<!--

        <question id="compat-deprecation" when="init">

            How the introduction of your project influences functionality

            provided by previous version of the product?

            <hint>

            If you are planning to deprecate/remove/change any existing APIs,

            list them here accompanied with the reason explaining why you

            are doing so.

            </hint>

        </question>

-->

 <answer id="compat-deprecation">

  <p>

   This module does not deprecate nor replace any existing APIs.

  </p>

 </answer>

<!--

        <question id="compat-i18n" when="impl">

            Is your module correctly internationalized?

            <hint>

            Correct internationalization means that it obeys instructions 

            at <a href="http://www.netbeans.org/download/dev/javadoc/org-openide-modules/org/openide/modules/doc-files/i18n-branding.html">

            NetBeans I18N pages</a>.

            </hint>

        </question>

-->

 <answer id="compat-i18n">

  <p>

   Does not apply.

  </p>

 </answer>

<!--

        <question id="compat-standards" when="init">

            Does the module implement or define any standards? Is the 

            implementation exact or does it deviate somehow?

        </question>

-->

 <answer id="compat-standards">

  <p>

   Does not apply.

  </p>

 </answer>

<!--

        <question id="compat-version" when="impl">

            Can your module coexist with earlier and future

            versions of itself? Can you correctly read all old settings? Will future

            versions be able to read your current settings? Can you read

            or politely ignore settings stored by a future version?

            <hint>

            Very helpful for reading settings is to store version number

            there, so future versions can decide whether how to read/convert

            the settings and older versions can ignore the new ones.

            </hint>

        </question>

-->

 <answer id="compat-version">

  <p>

   Future versions of this module should be backwards compatible.

  </p>

 </answer>

<!--

        <question id="dep-jre" when="final">

            Which version of JRE do you need (1.2, 1.3, 1.4, etc.)?

            <hint>

            It is expected that if your module runs on 1.x that it will run 

            on 1.x+1 if no, state that please. Also describe here cases where

            you run different code on different versions of JRE and why.

            </hint>

        </question>

-->

 <answer id="dep-jre">

  <p>

   Same as the rest of the IDE.

  </p>

 </answer>

<!--

        <question id="dep-jrejdk" when="final">

            Do you require the JDK or is the JRE enough?

        </question>

-->

 <answer id="dep-jrejdk">

  <p>

   JDK required.

  </p>

 </answer>

<!--

        <question id="dep-nb" when="init">

            What other NetBeans projects and modules does this one depend on?

            <hint>

            Depending on other NetBeans projects influnces the ability of

            users of your work to customize their own branded version of

            NetBeans by enabling and disabling some modules. Too

            much dependencies restrict this kind of customization. If that

            is your case, then you may want to split your functionality into

            pieces of autoload, eager and regular modules which can be

            enabled independently. Usually the answer to this question

            is generated from your <code>project.xml</code> file, but

            if it is not guessed correctly, you can suppress it by

            specifying <defaultanswer generate="none"/> and

            write here your own. Please describe such projects as imported APIs using

            the <code>&lt;api name="identification" type="import or export" category="stable" url="where is the description" /&gt;</code>.

            By doing this information gets listed in the summary page of your

            javadoc.

            </hint>

        </question>

-->

 <answer id="dep-nb">

  <defaultanswer generate='here' />

 </answer>

<!--

        <question id="dep-non-nb" when="init">

            What other projects outside NetBeans does this one depend on?

            <hint>

            Depending on 3rd party libraries is always problematic,

            especially if they are not open source, as that complicates

            the licensing scheme of NetBeans. Please enumerate your

            external dependencies here, so it is correctly understood since

            the begining what are the legal implications of your project.

            Also please note that

            some non-NetBeans projects are packaged as NetBeans modules

            (see <a href="http://libs.netbeans.org/">libraries</a>) and

            it is preferred to use this approach when more modules may

            depend and share such third-party libraries.

            </hint>

        </question>

-->

 <answer id="dep-non-nb">

  <p>

   No extra dependencies.

  </p>

 </answer>

<!--

        <question id="dep-platform" when="init">

            On which platforms does your module run? Does it run in the same

            way on each?

            <hint>

            If you plan any dependency on OS or any usage of native code,

            please describe why you are doing so and describe how you envision

            to enforce the portability of your code.

            Please note that there is a support for <a href="http://www.netbeans.org/download/dev/javadoc/org-openide-modules/org/openide/modules/doc-files/api.html#how-os-specific">OS conditionally

            enabled modules</a> which together with autoload/eager modules

            can allow you to enable to provide the best OS aware support

            on certain OSes while providing compatibility bridge on the not

            supported ones.

            Also please list the supported

            OSes/HW platforms and mentioned the lovest version of JDK required

            for your project to run on. Also state whether JRE is enough or

            you really need JDK.

            </hint>

        </question>

-->

 <answer id="dep-platform">

  <p>

   All platforms the IDE supports.

  </p>

 </answer>

<!--

        <question id="deploy-dependencies" when="final">

            What do other modules need to do to declare a dependency on this one,

            in addition to or instead of the normal module dependency declaration

            (e.g. tokens to require)?

            <hint>

                Provide a sample of the actual lines you would add to a module manifest

                to declare a dependency, for example OpenIDE-Module-Requires: some.token.

                If other modules should not depend on this module, or should just use a

                simple regular module dependency, you can just answer "nothing". If you

                intentionally expose a semistable API to clients using implementation

                dependencies, you should mention that here (but there is no need to give

                an example of usage).

            </hint>

        </question>

-->

 <answer id="deploy-dependencies">

  <p>

   No special dependencies.

  </p>

 </answer>

<!--

        <question id="deploy-jar" when="impl">

            Do you deploy just module JAR file(s) or other files as well?

            <hint>

            Usually a module consist of one JAR file (perhaps with Class-Path

            extensions) and also a configuration file that enables it. If you

            have any other files, use

            <api group="java.io.File" name="yourname" type="export" category="friend">...</api>

            to define the location, name and stability of your files (of course

            changing "yourname" and "friend" to suit your needs).

            If it uses more than one JAR, describe where they are located, how

            they refer to each other. 

            If it consist of module JAR(s) and other files, please describe

            what is their purpose, why other files are necessary. Please 

            make sure that installation/uninstallation leaves the system 

            in state as it was before installation.

            </hint>

        </question>

-->

 <answer id="deploy-jar">

  <p>

   Only JAR.

  </p>

 </answer>

<!--

        <question id="deploy-nbm" when="impl">

            Can you deploy an NBM via the Update Center?

            <hint>

            If not why?

            </hint>

        </question>

-->

 <answer id="deploy-nbm">

  <p>

   Yes.

  </p>

 </answer>

<!--

        <question id="deploy-packages" when="init">

            Are packages of your module made inaccessible by not declaring them

            public?

            <hint>

            By default NetBeans build harness treats all packages are private.

            If you export some of them - either as public or friend packages,

            you should have a reason. If the reason is described elsewhere

            in this document, you can ignore this question.

            </hint>

        </question>

-->

 <answer id="deploy-packages">

  <p>

   There are public packages in this module.

      <api name="MavenPluginProperties" group="java" type="export" category="devel" />

  </p>

 </answer>

<!--

        <question id="deploy-shared" when="final">

            Do you need to be installed in the shared location only, or in the user directory only,

            or can your module be installed anywhere?

            <hint>

            Installation location shall not matter, if it does explain why.

            Consider also whether <code>InstalledFileLocator</code> can help.

            </hint>

        </question>

-->

 <answer id="deploy-shared">

  <p>

   No special installation requirements.

  </p>

 </answer>

<!--

        <question id="exec-ant-tasks" when="impl">

            Do you define or register any ant tasks that other can use?

            <hint>

            If you provide an ant task that users can use, you need to be very

            careful about its syntax and behaviour, as it most likely forms an

	          API for end users and as there is a lot of end users, their reaction

            when such API gets broken can be pretty strong.

            </hint>

        </question>

-->

 <answer id="exec-ant-tasks">

  <p>

   No ant tasks.

  </p>

 </answer>

<!--

        <question id="exec-classloader" when="impl">

            Does your code create its own class loader(s)?

            <hint>

            A bit unusual. Please explain why and what for.

            </hint>

        </question>

-->

 <answer id="exec-classloader">

  <p>

   No custom class loaders.

  </p>

 </answer>

<!--

        <question id="exec-component" when="impl">

            Is execution of your code influenced by any (string) property

            of any of your components?

            <hint>

            Often <code>JComponent.getClientProperty</code>, <code>Action.getValue</code>

            or <code>PropertyDescriptor.getValue</code>, etc. are used to influence

            a behavior of some code. This of course forms an interface that should

            be documented. Also if one depends on some interface that an object

            implements (<code>component instanceof Runnable</code>) that forms an

            API as well.

            </hint>

        </question>

-->

 <answer id="exec-component">

  <p>

   No

  </p>

 </answer>

<!--

        <question id="exec-introspection" when="impl">

            Does your module use any kind of runtime type information (<code>instanceof</code>,

            work with <code>java.lang.Class</code>, etc.)?

            <hint>

            Check for cases when you have an object of type A and you also

            expect it to (possibly) be of type B and do some special action. That

            should be documented. The same applies on operations in meta-level

            (Class.isInstance(...), Class.isAssignableFrom(...), etc.).

            </hint>

        </question>

-->

 <answer id="exec-introspection">

  <p>

   No

  </p>

 </answer>

<!--

        <question id="exec-privateaccess" when="final">

            Are you aware of any other parts of the system calling some of 

            your methods by reflection?

            <hint>

            If so, describe the "contract" as an API. Likely private or friend one, but

            still API and consider rewrite of it.

            </hint>

        </question>

-->

 <answer id="exec-privateaccess">

  <p>

   No

  </p>

 </answer>

<!--

        <question id="exec-process" when="impl">

            Do you execute an external process from your module? How do you ensure

            that the result is the same on different platforms? Do you parse output?

            Do you depend on result code?

            <hint>

            If you feed an input, parse the output please declare that as an API.

            </hint>

        </question>

-->

 <answer id="exec-process">

  <p>

   No

  </p>

 </answer>

<!--

        <question id="exec-property" when="impl">

            Is execution of your code influenced by any environment or

            Java system (<code>System.getProperty</code>) property?

            On a similar note, is there something interesting that you

            pass to <code>java.util.logging.Logger</code>? Or do you observe

            what others log?

            <hint>

            If there is a property that can change the behavior of your 

            code, somebody will likely use it. You should describe what it does 

            and the <a href="http://wiki.netbeans.org/API_Stability">stability category</a>

            of this API. You may use

            <pre>

                <api type="export" group="property" name="id" category="private" url="http://...">

                    description of the property, where it is used, what it influence, etc.

                </api>            

            </pre>

            </hint>

        </question>

-->

 <answer id="exec-property">

  <p>

   No

  </p>

 </answer>

<!--

        <question id="exec-reflection" when="impl">

            Does your code use Java Reflection to execute other code?

            <hint>

            This usually indicates a missing or insufficient API in the other

            part of the system. If the other side is not aware of your dependency

            this contract can be easily broken.

            </hint>

        </question>

-->

 <answer id="exec-reflection">

  <p>

   No

  </p>

 </answer>

<!--

        <question id="exec-threading" when="init">

            What threading models, if any, does your module adhere to? How the

            project behaves with respect to threading?

            <hint>

                Is your API threadsafe? Can it be accessed from any threads or

                just from some dedicated ones? Any special relation to AWT and

                its Event Dispatch thread? Also

                if your module calls foreign APIs which have a specific threading model,

                indicate how you comply with the requirements for multithreaded access

                (synchronization, mutexes, etc.) applicable to those APIs.

                If your module defines any APIs, or has complex internal structures

                that might be used from multiple threads, declare how you protect

                data against concurrent access, race conditions, deadlocks, etc.,

                and whether such rules are enforced by runtime warnings, errors, assertions, etc.

                Examples: a class might be non-thread-safe (like Java Collections); might

                be fully thread-safe (internal locking); might require access through a mutex

                (and may or may not automatically acquire that mutex on behalf of a client method);

                might be able to run only in the event queue; etc.

                Also describe when any events are fired: synchronously, asynchronously, etc.

                Ideas: <a href="http://core.netbeans.org/proposals/threading/index.html#recommendations">Threading Recommendations</a> (in progress)

            </hint>

        </question>

-->

 <answer id="exec-threading">

  <p>

   All API methods are thread safe.

  </p>

 </answer>

<!--

        <question id="format-clipboard" when="impl">

            Which data flavors (if any) does your code read from or insert to

            the clipboard (by access to clipboard on means calling methods on <code>java.awt.datatransfer.Transferable</code>?

            <hint>

            Often Node's deal with clipboard by usage of <code>Node.clipboardCopy, Node.clipboardCut and Node.pasteTypes</code>.

            Check your code for overriding these methods.

            </hint>

        </question>

-->

 <answer id="format-clipboard">

  <p>

   No clipboard interaction.

  </p>

 </answer>

<!--

        <question id="format-dnd" when="impl">

            Which protocols (if any) does your code understand during Drag & Drop?

            <hint>

            Often Node's deal with clipboard by usage of <code>Node.drag, Node.getDropType</code>. 

            Check your code for overriding these methods. Btw. if they are not overridden, they

            by default delegate to <code>Node.clipboardCopy, Node.clipboardCut and Node.pasteTypes</code>.

            </hint>

        </question>

-->

 <answer id="format-dnd">

  <p>

   No dnd.

  </p>

 </answer>

<!--

        <question id="format-types" when="impl">

            Which protocols and file formats (if any) does your module read or write on disk,

            or transmit or receive over the network? Do you generate an ant build script?

            Can it be edited and modified? 

            <hint>

            <p>

            Files can be read and written by other programs, modules and users. If they influence

            your behaviour, make sure you either document the format or claim that it is a private

            api (using the <api> tag). 

            </p>

            <p>

            If you generate an ant build file, this is very likely going to be seen by end users and

            they will be attempted to edit it. You should be ready for that and provide here a link

            to documentation that you have for such purposes and also describe how you are going to

            understand such files during next release, when you (very likely) slightly change the 

            format.

            </p>

            </hint>

        </question>

-->

 <answer id="format-types">

  <p>

   No direct disk access.

  </p>

 </answer>

<!--

        <question id="lookup-lookup" when="init">

            Does your module use <code>org.openide.util.Lookup</code>

            or any similar technology to find any components to communicate with? Which ones?

            <hint>

            NetBeans is build around a generic registry of services called

            lookup. It is preferable to use it for registration and discovery

            if possible. See

            <a href="http://www.netbeans.org/download/dev/javadoc/org-openide-util/org/openide/util/lookup/doc-files/index.html">

            The Solution to Comunication Between Components

            </a>. If you do not plan to use lookup and insist usage

            of other solution, then please describe why it is not working for

            you.

            <br/>

            When filling the final version of your arch document, please

            describe the interfaces you are searching for, where 

            are defined, whether you are searching for just one or more of them,

            if the order is important, etc. Also classify the stability of such

            API contract. Use <api group=&lookup& /> tag, so

            your information gets listed in the summary page of your javadoc.

            </hint>

        </question>

-->

 <answer id="lookup-lookup">

  <p>

   Uses Lookup passed into project customizer to find Maven model handle.

  </p>

 </answer>

<!--

        <question id="lookup-register" when="final">

            Do you register anything into lookup for other code to find?

            <hint>

            Do you register using layer file or using a declarative annotation such as <code>@ServiceProvider</code>?

            Who is supposed to find your component?

            </hint>

        </question>

-->

 <answer id="lookup-register">

  <p>

   No

  </p>

 </answer>

<!--

        <question id="lookup-remove" when="final">

            Do you remove entries of other modules from lookup?

            <hint>

            Why? Of course, that is possible, but it can be dangerous. Is the module

            your are masking resource from aware of what you are doing?

            </hint>

        </question>

-->

 <answer id="lookup-remove">

  <p>

   No

  </p>

 </answer>

<!--

        <question id="perf-exit" when="final">

            Does your module run any code on exit?

        </question>

-->

 <answer id="perf-exit">

  <p>

   No

  </p>

 </answer>

<!--

        <question id="perf-huge_dialogs" when="final">

            Does your module contain any dialogs or wizards with a large number of

            GUI controls such as combo boxes, lists, trees, or text areas?

        </question>

-->

 <answer id="perf-huge_dialogs">

  <p>

   No

  </p>

 </answer>

<!--

        <question id="perf-limit" when="init">

            Are there any hard-coded or practical limits in the number or size of

            elements your code can handle?

            <hint>

                Most of algorithms have increasing memory and speed complexity

                with respect to size of data they operate on. What is the critical

                part of your project that can be seen as a bottleneck with

                respect to speed or required memory? What are the practical

                sizes of data you tested your project with? What is your estimate

                of potential size of data that would cause visible performance

                problems? Is there some kind of check to detect such situation

                and prevent "hard" crashes - for example the CloneableEditorSupport

                checks for size of a file to be opened in editor

                and if it is larger than 1Mb it shows a dialog giving the

                user the right to decide - e.g. to cancel or commit suicide.

            </hint>

        </question>

-->

 <answer id="perf-limit">

  <p>

   No

  </p>

 </answer>

<!--

        <question id="perf-mem" when="final">

            How much memory does your component consume? Estimate

            with a relation to the number of windows, etc.

        </question>

-->

 <answer id="perf-mem">

  <p>

   No UI components.

  </p>

 </answer>

<!--

        <question id="perf-menus" when="final">

            Does your module use dynamically updated context menus, or

            context-sensitive actions with complicated and slow enablement logic?

            <hint>

                If you do a lot of tricks when adding actions to regular or context menus, you can significantly

                slow down display of the menu, even when the user is not using your action. Pay attention to

                actions you add to the main menu bar, and to context menus of foreign nodes or components. If

                the action is conditionally enabled, or changes its display dynamically, you need to check the

                impact on performance. In some cases it may be more appropriate to make a simple action that is

                always enabled but does more detailed checks in a dialog if it is actually run.

            </hint>

        </question>

-->

 <answer id="perf-menus">

  <p>

   No menus.

  </p>

 </answer>

<!--

        <question id="perf-progress" when="final">

            Does your module execute any long-running tasks?

            <hint>Long running tasks should never block 

            AWT thread as it badly hurts the UI

            <a href="http://performance.netbeans.org/responsiveness/issues.html">

            responsiveness</a>.

            Tasks like connecting over

            network, computing huge amount of data, compilation

            be done asynchronously (for example

            using <code>RequestProcessor</code>), definitively it should 

            not block AWT thread.

            </hint>

        </question>

-->

 <answer id="perf-progress">

  <p>

   No long running tasks.

  </p>

 </answer>

<!--

        <question id="perf-scale" when="init">

            Which external criteria influence the performance of your

            program (size of file in editor, number of files in menu, 

            in source directory, etc.) and how well your code scales?

            <hint>

            Please include some estimates, there are other more detailed 

            questions to answer in later phases of implementation. 

            </hint>

        </question>

-->

 <answer id="perf-scale">

  <p>

   Does not apply.

  </p>

 </answer>

<!--

        <question id="perf-spi" when="init">

            How the performance of the plugged in code will be enforced?

            <hint>

            If you allow foreign code to be plugged into your own module, how

            do you enforce that it will behave correctly and quickly and will not

            negatively influence the performance of your own module?

            </hint>

        </question>

-->

 <answer id="perf-spi">

  <p>

   No plugged in code.

  </p>

 </answer>

<!--

        <question id="perf-startup" when="final">

            Does your module run any code on startup?

        </question>

-->

 <answer id="perf-startup">

  <p>

   No

  </p>

 </answer>

<!--

        <question id="perf-wakeup" when="final">

            Does any piece of your code wake up periodically and do something

            even when the system is otherwise idle (no user interaction)?

        </question>

-->

 <answer id="perf-wakeup">

  <p>

   No

  </p>

 </answer>

<!--

        <question id="resources-file" when="final">

            Does your module use <code>java.io.File</code> directly?

            <hint>

            NetBeans provide a logical wrapper over plain files called 

            <code>org.openide.filesystems.FileObject</code> that

            provides uniform access to such resources and is the preferred

            way that should be used. But of course there can be situations when

            this is not suitable.

            </hint>

        </question>

-->

 <answer id="resources-file">

  <p>

   No

  </p>

 </answer>

<!--

        <question id="resources-layer" when="final">

            Does your module provide own layer? Does it create any files or

            folders in it? What it is trying to communicate by that and with which 

            components?

            <hint>

            NetBeans allows automatic and declarative installation of resources 

            by module layers. Module register files into appropriate places

            and other components use that information to perform their task

            (build menu, toolbar, window layout, list of templates, set of

            options, etc.). 

            </hint>

        </question>

-->

 <answer id="resources-layer">

  <p>

   No

  </p>

 </answer>

<!--

        <question id="resources-mask" when="final">

            Does your module mask/hide/override any resources provided by other modules in

            their layers?

            <hint>

            If you mask a file provided by another module, you probably depend

            on that and do not want the other module to (for example) change

            the file's name. That module shall thus make that file available as an API

            of some stability category.

            </hint>

        </question>

-->

 <answer id="resources-mask">

  <p>

   No

  </p>

 </answer>

<!--

        <question id="resources-preferences" when="final">

            Does your module uses preferences via Preferences API? Does your module use NbPreferences or

            or regular JDK Preferences ? Does it read, write or both ? 

            Does it share preferences with other modules ? If so, then why ?

            <hint>

                You may use

                    <api type="export" group="preferences"

                    name="preference node name" category="private">

                    description of individual keys, where it is used, what it

                    influences, whether the module reads/write it, etc.

                    </api>

                Due to XML ID restrictions, rather than /org/netbeans/modules/foo give the "name" as org.netbeans.modules.foo.

                Note that if you use NbPreferences this name will then be the same as the code name base of the module.

            </hint>

        </question>

-->

 <answer id="resources-preferences">

  <p>

   No

  </p>

 </answer>

<!--

        <question id="resources-read" when="final">

            Does your module read any resources from layers? For what purpose?

            <hint>

            As this is some kind of intermodule dependency, it is a kind of API.

            Please describe it and classify according to 

            <a href="http://wiki.netbeans.org/API_Design#What_is_an_API.3F">

            common stability categories</a>.

            </hint>

        </question>

-->

 <answer id="resources-read">

  <p>

   No

  </p>

 </answer>

<!--

        <question id="security-grant" when="final">

            Does your code grant additional rights to some other code?

            <hint>Avoid using a class loader that adds extra

            permissions to loaded code unless really necessary.

            Also note that your API implementation

            can also expose unneeded permissions to enemy code by

            calling AccessController.doPrivileged().</hint>

        </question>

-->

 <answer id="security-grant">

  <p>

   No

  </p>

 </answer>

<!--

        <question id="security-policy" when="final">

            Does your functionality require modifications to the standard policy file?

            <hint>Your code might pass control to third-party code not

            coming from trusted domains. This could be code downloaded over the

            network or code coming from libraries that are not bundled

            with NetBeans. Which permissions need to be granted to which domains?</hint>

        </question>

-->

 <answer id="security-policy">

  <p>

   No

  </p>

 </answer>

</api-answers>

<?xml version="1.0" encoding="UTF-8"?>

<project basedir="." default="netbeans" name="maven.util">

    <description>Builds, tests, and runs the project org.netbeans.modules.maven.util</description>

    <import file="../nbbuild/templates/projectized.xml"/>

</project>

Manifest-Version: 1.0

OpenIDE-Module: org.netbeans.modules.maven.util/1

OpenIDE-Module-Implementation-Version: 1

OpenIDE-Module-Localizing-Bundle: org/netbeans/modules/maven/util/Bundle.properties

javac.source=1.6

javac.compilerargs=-Xlint -Xlint:-serial

javadoc.arch=${basedir}/arch.xml

spec.version.base=1.0

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://www.netbeans.org/ns/project/1">

    <type>org.netbeans.modules.apisupport.project</type>

    <configuration>

        <data xmlns="http://www.netbeans.org/ns/nb-module-project/3">

            <code-name-base>org.netbeans.modules.maven.util</code-name-base>

            <module-dependencies>

                <dependency>

                    <code-name-base>org.netbeans.modules.maven</code-name-base>

                    <build-prerequisite/>

                    <compile-dependency/>

                    <run-dependency>

                        <release-version>2</release-version>

                    </run-dependency>

                </dependency>

                <dependency>

                    <code-name-base>org.netbeans.modules.maven.embedder</code-name-base>

                    <build-prerequisite/>

                    <compile-dependency/>

                    <run-dependency>

                        <release-version>2</release-version>

                    </run-dependency>

                </dependency>

                <dependency>

                    <code-name-base>org.netbeans.modules.maven.model</code-name-base>

                    <build-prerequisite/>

                    <compile-dependency/>

                    <run-dependency>

                        <release-version>1</release-version>

                    </run-dependency>

                </dependency>

                <dependency>

                    <code-name-base>org.netbeans.modules.projectapi</code-name-base>

                    <build-prerequisite/>

                    <compile-dependency/>

                    <run-dependency>

                        <release-version>1</release-version>

                        <specification-version>1.54</specification-version>

                    </run-dependency>

                </dependency>

                <dependency>

                    <code-name-base>org.netbeans.modules.projectuiapi</code-name-base>

                    <build-prerequisite/>

                    <compile-dependency/>

                    <run-dependency>

                        <release-version>1</release-version>

                        <specification-version>1.72</specification-version>

                    </run-dependency>

                </dependency>

                <dependency>

                    <code-name-base>org.netbeans.modules.xml.xam</code-name-base>

                    <build-prerequisite/>

                    <compile-dependency/>

                    <run-dependency>

                        <release-version>1</release-version>

                        <specification-version>1.25.0.1</specification-version>

                    </run-dependency>

                </dependency>

                <dependency>

                    <code-name-base>org.openide.filesystems</code-name-base>

                    <build-prerequisite/>

                    <compile-dependency/>

                    <run-dependency>

                        <specification-version>8.8</specification-version>

                    </run-dependency>

                </dependency>

                <dependency>

                    <code-name-base>org.openide.util</code-name-base>

                    <build-prerequisite/>

                    <compile-dependency/>

                    <run-dependency>

                        <specification-version>8.33</specification-version>

                    </run-dependency>

                </dependency>

                <dependency>

                    <code-name-base>org.openide.util.lookup</code-name-base>

                    <build-prerequisite/>

                    <compile-dependency/>

                    <run-dependency>

                        <specification-version>8.22</specification-version>

                    </run-dependency>

                </dependency>

            </module-dependencies>

            <public-packages>

                <package>org.netbeans.modules.maven.util</package>

            </public-packages>

        </data>

    </configuration>

</project>

OpenIDE-Module-Name=Maven Utilities

/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

 *

 * Copyright 2010 Oracle and/or its affiliates. All rights reserved.

 *

 * Oracle and Java are registered trademarks of Oracle and/or its affiliates.

 * Other names may be trademarks of their respective owners.

 *

 * The contents of this file are subject to the terms of either the GNU

 * General Public License Version 2 only ("GPL") or the Common

 * Development and Distribution License("CDDL") (collectively, the

 * "License"). You may not use this file except in compliance with the

 * License. You can obtain a copy of the License at

 * http://www.netbeans.org/cddl-gplv2.html

 * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the

 * specific language governing permissions and limitations under the

 * License.  When distributing the software, include this License Header

 * Notice in each file and include the License file at

 * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the GPL Version 2 section of the License file that

 * accompanied this code. If applicable, add the following below the

 * License Header, with the fields enclosed by brackets [] replaced by

 * your own identifying information:

 * "Portions Copyrighted [year] [name of copyright owner]"

 *

 * If you wish your version of this file to be governed by only the CDDL

 * or only the GPL Version 2, indicate your decision by adding

 * "[Contributor] elects to include this software in this distribution

 * under the [CDDL or GPL Version 2] license." If you do not indicate a

 * single choice of license, a recipient has the option to distribute

 * your version of this file under either the CDDL, the GPL Version 2 or

 * to extend the choice of license to its licensees as provided above.

 * However, if you add GPL Version 2 code and therefore, elected the GPL

 * Version 2 license, then the option applies only if the new code is

 * made subject to such option by the copyright holder.

 *

 * Contributor(s):

 *

 * Portions Copyrighted 2009 Sun Microsystems, Inc.

 */

package org.netbeans.modules.maven.util.impl;

import java.lang.annotation.Annotation;

import java.util.Arrays;

import java.util.HashSet;

import java.util.Set;

import javax.annotation.processing.Processor;

import javax.annotation.processing.RoundEnvironment;

import javax.annotation.processing.SupportedSourceVersion;

import javax.lang.model.SourceVersion;

import javax.lang.model.element.Element;

import static javax.lang.model.element.ElementKind.CLASS;

import static javax.lang.model.element.ElementKind.METHOD;

import javax.lang.model.element.ExecutableElement;

import javax.lang.model.element.Modifier;

import javax.lang.model.element.TypeElement;

import javax.lang.model.type.TypeMirror;

import javax.lang.model.util.ElementFilter;

import org.netbeans.modules.maven.util.MavenCategoryProvider;

import org.netbeans.modules.maven.util.MavenCategoryProvider.Registration;

import org.openide.filesystems.annotations.LayerBuilder.File;

import org.openide.filesystems.annotations.LayerGeneratingProcessor;

import org.openide.filesystems.annotations.LayerGenerationException;

import org.openide.util.lookup.ServiceProvider;

@ServiceProvider(service = Processor.class)

@SupportedSourceVersion(SourceVersion.RELEASE_6)

public class MavenCategoryProviderAnnotationProcessor extends LayerGeneratingProcessor {

    public @Override Set<String> getSupportedAnnotationTypes() {

        return new HashSet<String>(Arrays.asList(

                Registration.class.getCanonicalName()

        ));

    }

    @Override

    protected boolean handleProcess(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) throws LayerGenerationException {

        if (roundEnv.processingOver()) {

            return false;

        }

        for (Element e : roundEnv.getElementsAnnotatedWith(Registration.class)) {

            Registration r = e.getAnnotation(Registration.class);

            if (r == null) {

                continue;

            }

            handle(e, r);

        }

        return true;

    }

    private void handle(Element e, Registration r) throws LayerGenerationException {

        String path = "Projects/org-netbeans-modules-maven/Customizer"; //NOI18N

        if (r.category().length() > 0) {

            path += "/" + r.category();

        }

        boolean addsFolder = r.categoryLabel().length() > 0;

        if (addsFolder) {

            handleFolder(path, e, r);

        }

        File f = layer(e).instanceFile(path, null, MavenCategoryProvider.class, r, null);

        f.methodvalue("instanceCreate", "org.netbeans.modules.maven.util.ProxyCategoryProvider", "create"); //NOI18N

        f.position(addsFolder ? 0 : r.position());

        if( r.groupId().isEmpty() )

            throw new LayerGenerationException("Must specify groupId", e, processingEnv, r); //NOI18N

        f.stringvalue( "groupId", r.groupId());

        if( r.artifactId().isEmpty() )

            throw new LayerGenerationException("Must specify artifactId", e, processingEnv, r); //NOI18N

        f.stringvalue( "artifactId", r.artifactId()); //NOI18N

        String[] clazzOrMethod = instantiableClassOrMethod(e, r, null);

        String clazz = clazzOrMethod[0];

        String method = clazzOrMethod[1];

        if( null == method ) {

            f.newvalue("categoryProvider", clazz); //NOI18N

        } else {

            f.methodvalue( "categoryProvider", clazz, method); //NOI18N

        }

        f.write();

    }

    private void handleFolder(String path, Element e, Registration r) throws LayerGenerationException {

        if (r.category().length() == 0) {

            throw new LayerGenerationException("Must specify category", e, processingEnv, r); //NOI18N

        }

        layer(e).folder(path).bundlevalue("displayName", r.categoryLabel(), r, "categoryLabel").position(r.position()).write(); //NOI18N

    }

    private String[] instantiableClassOrMethod(Element originatingElement, Annotation annotation, String annotationMethod) throws IllegalArgumentException, LayerGenerationException {

        Class<?> type = MavenCategoryProvider.class;

        if (originatingElement == null) {

            throw new IllegalArgumentException("Only applicable to builders with exactly one associated element");

        }

        TypeMirror typeMirror = type != null ?

            processingEnv.getTypeUtils().getDeclaredType(

                processingEnv.getElementUtils().getTypeElement(type.getName().replace('$', '.'))) :

            null;

        switch (originatingElement.getKind()) {

            case CLASS: {

                String clazz = processingEnv.getElementUtils().getBinaryName((TypeElement) originatingElement).toString();

                if (originatingElement.getModifiers().contains(Modifier.ABSTRACT)) {

                    throw new LayerGenerationException(clazz + " must not be abstract", originatingElement, processingEnv, annotation, annotationMethod);

                }

                {

                    boolean hasDefaultCtor = false;

                    for (ExecutableElement constructor : ElementFilter.constructorsIn(originatingElement.getEnclosedElements())) {

                        if (constructor.getParameters().isEmpty()) {

                            hasDefaultCtor = true;

                            break;

                        }

                    }

                    if (!hasDefaultCtor) {

                        throw new LayerGenerationException(clazz + " must have a no-argument constructor", originatingElement, processingEnv, annotation, annotationMethod);

                    }

                }

                if (typeMirror != null && !processingEnv.getTypeUtils().isAssignable(originatingElement.asType(), typeMirror)) {

                    throw new LayerGenerationException(clazz + " is not assignable to " + typeMirror, originatingElement, processingEnv, annotation, annotationMethod);

                }

                if (!originatingElement.getModifiers().contains(Modifier.PUBLIC)) {

                    throw new LayerGenerationException(clazz + " is not public", originatingElement, processingEnv, annotation, annotationMethod);

                }

                if (((TypeElement) originatingElement).getNestingKind().isNested() && !originatingElement.getModifiers().contains(Modifier.STATIC)) {

                    throw new LayerGenerationException(clazz + " is nested but not static", originatingElement, processingEnv, annotation, annotationMethod);

                }

                return new String[] {clazz, null};

            }

            case METHOD: {

                String clazz = processingEnv.getElementUtils().getBinaryName((TypeElement) originatingElement.getEnclosingElement()).toString();

                String method = originatingElement.getSimpleName().toString();

                if (!originatingElement.getModifiers().contains(Modifier.STATIC)) {

                    throw new LayerGenerationException(clazz + "." + method + " must be static", originatingElement, processingEnv, annotation, annotationMethod);

                }

                if (!((ExecutableElement) originatingElement).getParameters().isEmpty()) {

                    throw new LayerGenerationException(clazz + "." + method + " must not take arguments", originatingElement, processingEnv, annotation, annotationMethod);

                }

                if (typeMirror != null && !processingEnv.getTypeUtils().isAssignable(((ExecutableElement) originatingElement).getReturnType(), typeMirror)) {

                    throw new LayerGenerationException(clazz + "." + method + " is not assignable to " + typeMirror, originatingElement, processingEnv, annotation, annotationMethod);

                }

                return new String[] {clazz, method};

            }

            default:

                throw new LayerGenerationException("Annotated element is not loadable as an instance", originatingElement, processingEnv, annotation, annotationMethod);

        }

    }

}

/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

 *

 * Copyright 2013 Oracle and/or its affiliates. All rights reserved.

 *

 * Oracle and Java are registered trademarks of Oracle and/or its affiliates.

 * Other names may be trademarks of their respective owners.

 *

 * The contents of this file are subject to the terms of either the GNU

 * General Public License Version 2 only ("GPL") or the Common

 * Development and Distribution License("CDDL") (collectively, the

 * "License"). You may not use this file except in compliance with the

 * License. You can obtain a copy of the License at

 * http://www.netbeans.org/cddl-gplv2.html

 * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the

 * specific language governing permissions and limitations under the

 * License.  When distributing the software, include this License Header

 * Notice in each file and include the License file at

 * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the GPL Version 2 section of the License file that

 * accompanied this code. If applicable, add the following below the

 * License Header, with the fields enclosed by brackets [] replaced by

 * your own identifying information:

 * "Portions Copyrighted [year] [name of copyright owner]"

 *

 * If you wish your version of this file to be governed by only the CDDL

 * or only the GPL Version 2, indicate your decision by adding

 * "[Contributor] elects to include this software in this distribution

 * under the [CDDL or GPL Version 2] license." If you do not indicate a

 * single choice of license, a recipient has the option to distribute

 * your version of this file under either the CDDL, the GPL Version 2 or

 * to extend the choice of license to its licensees as provided above.

 * However, if you add GPL Version 2 code and therefore, elected the GPL

 * Version 2 license, then the option applies only if the new code is

 * made subject to such option by the copyright holder.

 *

 * Contributor(s):

 *

 * Portions Copyrighted 2013 Sun Microsystems, Inc.

 */

package org.netbeans.modules.maven.util;

import java.lang.annotation.ElementType;

import java.lang.annotation.Retention;

import java.lang.annotation.RetentionPolicy;

import java.lang.annotation.Target;

import org.netbeans.spi.project.ui.support.ProjectCustomizer;

/**

 * Allows to register project customizer panels for Maven projects that have

 * specific Maven plugins in their POM.

 * 

 * @author S. Aubrecht

 */

public abstract class MavenCategoryProvider implements ProjectCustomizer.CompositeCategoryProvider {

    private MavenPluginParameters pluginParameters;

    final void setPluginParameters( MavenPluginParameters params ) {

        this.pluginParameters = params;

    }

    /**

     * Access utility methods to get/set Maven plugin parameters.

     * @return Plugin parameters or null when not registered properly (without annotations).

     */

    public final MavenPluginParameters getPluginParameters(){

        return pluginParameters;

    }

    /**

     * Used to register customizer panels for Maven projects that have specific

     * plugin in their POM.

     * There are three ways this annotation can be used:

     * <ol>

     * <li>Register a "leaf" panel with no children.

     *     {@link #category} can be omitted for a top-level panel;

     *     if specified, the panel is placed in the named subcategory.

     *     {@link #categoryLabel} should not be specified.

     *     The annotation must be placed on a class or factory method implementing {@link CompositeCategoryProvider}.

     * <li>Register a category folder with no panel.

     *     {@link #category} must be specified; the last path component is the

     *     folder being defined, and any previous components are parent folders.

     *     {@link #categoryLabel} must be specified.

     *     The annotation must be placed on some package declaration (in {@code package-info.java}).

     * <li>Register a category folder also with its own panel (i.e. {@code Self}).

     *     {@link #category} and {@link #categoryLabel} must be specified as for #2,

     *     but the annotation must be on a provider implementation as for #1.

     * </ol>

     * To represent hierarchies of panels, the {@link #category} of a #1 can

     * match the {@link #category} of a #2 or #3, and the {@link #category} of a #2 or #3

     * preceding the last {@code /} can match the {@link #category} of another #2 or #3.

     * <p>Multiple registrations may be made in one place using {@link Registrations}.

     */

    @Target({ElementType.TYPE, ElementType.METHOD})

    @Retention(RetentionPolicy.SOURCE)

    public @interface Registration {

        /**

         * Maven plugin group id that the project customizer applies to.

         */

        String groupId();

        /**

         * Maven artifact id that the project customizer applies to.

         */

        String artifactId();

        /**

         * Category folder (perhaps multiple components separated by {@code /})

         * in which to place this panel or which is the name of this panel folder.

         */

        String category() default "";

        /**

         * Display name when defining a category folder.

         * Can use {@code pkg.of.Bundle#key_name} syntax.

         */

        String categoryLabel() default "";

        /**

         * Position of this panel or subfolder within its folder.

         */

        int position() default Integer.MAX_VALUE;

    }

}

/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

 *

 * Copyright 2013 Oracle and/or its affiliates. All rights reserved.

 *

 * Oracle and Java are registered trademarks of Oracle and/or its affiliates.

 * Other names may be trademarks of their respective owners.

 *

 * The contents of this file are subject to the terms of either the GNU

 * General Public License Version 2 only ("GPL") or the Common

 * Development and Distribution License("CDDL") (collectively, the

 * "License"). You may not use this file except in compliance with the

 * License. You can obtain a copy of the License at

 * http://www.netbeans.org/cddl-gplv2.html

 * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the

 * specific language governing permissions and limitations under the

 * License.  When distributing the software, include this License Header

 * Notice in each file and include the License file at

 * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the GPL Version 2 section of the License file that

 * accompanied this code. If applicable, add the following below the

 * License Header, with the fields enclosed by brackets [] replaced by

 * your own identifying information:

 * "Portions Copyrighted [year] [name of copyright owner]"

 *

 * If you wish your version of this file to be governed by only the CDDL

 * or only the GPL Version 2, indicate your decision by adding

 * "[Contributor] elects to include this software in this distribution

 * under the [CDDL or GPL Version 2] license." If you do not indicate a

 * single choice of license, a recipient has the option to distribute

 * your version of this file under either the CDDL, the GPL Version 2 or

 * to extend the choice of license to its licensees as provided above.

 * However, if you add GPL Version 2 code and therefore, elected the GPL

 * Version 2 license, then the option applies only if the new code is

 * made subject to such option by the copyright holder.

 *

 * Contributor(s):

 *

 * Portions Copyrighted 2013 Sun Microsystems, Inc.

 */

package org.netbeans.modules.maven.util;

import org.apache.maven.project.MavenProject;

import org.netbeans.modules.maven.api.NbMavenProject;

import org.netbeans.modules.maven.api.PluginPropertyUtils;

import org.netbeans.modules.maven.api.customizer.ModelHandle2;

import org.netbeans.modules.maven.model.ModelOperation;

import org.netbeans.modules.maven.model.pom.Build;

import org.netbeans.modules.maven.model.pom.Configuration;

import org.netbeans.modules.maven.model.pom.POMComponentFactory;

import org.netbeans.modules.maven.model.pom.POMModel;

import org.netbeans.modules.maven.model.pom.Plugin;

import org.openide.util.Lookup;

/**

 * Convenience methods to retrieve and set plugin parameters in Maven POM.

 * 

 * @author S. Aubrecht

 */

public final class MavenPluginParameters {

    private final Lookup lkp;

    private final String groupId;

    private final String artifactId;

    private MavenPluginParameters( Lookup lkp, String groupId, String artifactId ) {

        this.lkp = lkp;

        this.groupId = groupId;

        this.artifactId = artifactId;

    }

    /**

     * Creates a new instance for the given group and artifact id.

     * @param lkp

     * @param groupId

     * @param artifactId

     * @return

     */

    static MavenPluginParameters create( Lookup lkp, String groupId, String artifactId ) {

        return new MavenPluginParameters( lkp, groupId, artifactId );

    }

    /**

     * Retrieve Maven plugin version info.

     * @return Version number for the given plugin or null.

     */

    public String getPluginVersion() {

        NbMavenProject nbMaven = lkp.lookup( NbMavenProject.class );

        return PluginPropertyUtils.getPluginVersion( nbMaven.getMavenProject(), groupId, artifactId );

    }

    /**

     * Retrieve Maven plugin configuration property.

     * @param paramName Plugin parameter name.

     * @param expressionProperty User property name.

     * @return Parameter value or null if the parameter isn't defined.

     */

    public String getParameter( String paramName, String expressionProperty ) {

        NbMavenProject nbMaven = lkp.lookup( NbMavenProject.class );

        MavenProject prj = nbMaven.getMavenProject();

            return PluginPropertyUtils.getPluginProperty( prj, groupId, artifactId, paramName, null, expressionProperty );

    }

    /**

     * Change/add property for the given Maven plugin.

     * @param paramName Parameter name

     * @param propertyValue Parameter value

     */

    public void setParameter( String paramName, String propertyValue ) {

        ModelHandle2 mh = lkp.lookup( ModelHandle2.class);

        NbMavenProject nbMaven = lkp.lookup( NbMavenProject.class );

        mh.addPOMModification( new ParameterOperation( nbMaven, groupId, artifactId, paramName, propertyValue));

    }

    private static class ParameterOperation implements ModelOperation<POMModel> {

        private final NbMavenProject nbMaven;

        private final String groupId;

        private final String artifactId;

        private final String name;

        private final String value;

        public ParameterOperation( NbMavenProject nbMaven, String groupId, String artifacId, String paramName, String paramValue ) {

            this.nbMaven = nbMaven;

            this.groupId = groupId;

            this.artifactId = artifacId;

            this.name = paramName;

            this.value = paramValue;

        }

        @Override

        public void performOperation( POMModel model ) {

            //new approach, assume all plugins conform to the new setting.

            POMComponentFactory fact = model.getFactory();

            //check if compiler/resources plugins are configured and update them to ${project.source.encoding expression

            Build bld = model.getProject().getBuild();

            if( bld == null ) {

                bld = fact.createBuild();

                model.getProject().setBuild( bld );

                return;

            }

            Plugin plugin = bld.findPluginById( groupId, artifactId );

            if( plugin == null ) {

                plugin = fact.createPlugin();

                plugin.setArtifactId( artifactId );

                plugin.setGroupId( groupId );

                plugin.setVersion( PluginPropertyUtils.getPluginVersion( nbMaven.getMavenProject(), groupId, artifactId ) );

                bld.addPlugin( plugin );

            }

            Configuration conf = plugin.getConfiguration();

            if( conf == null ) {

                conf = fact.createConfiguration();

                plugin.setConfiguration( conf );

            }

            if( conf != null ) {

                conf.setSimpleParameter( name, value );

            }

        }

    };

}

import java.util.HashMap;

import java.util.Map;

 * Category provider that delegates to a different category provider - if the Maven

 * project POM contains the desired plugin.

    public ProxyCategoryProvider() {

        this( new HashMap(0) );

    }

    private ProxyCategoryProvider( Map args ) {

        this.args = args;

    }

    static ProjectCustomizer.CompositeCategoryProvider create( Map args ) {

        return new ProxyCategoryProvider( args );

    }

        }

        if( null == nbMaven )

            return false;

        String groupId = getGroupId();

        String artifactId = getArtifactId();

        if( null == groupId || null == artifactId )

            return false;

        return null != PluginPropertyUtils.getPluginVersion( nbMaven.getMavenProject(), groupId, artifactId );

    }

    private String getGroupId() {

        return (String) args.get( "groupId" ); //NOI18N

    }

    private String getArtifactId() {

        return (String) args.get( "artifactId" ); //NOI18N

    }

}