plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.4"?>
<!--
    Copyright (c) 2016 Abel Gómez.
    All rights reserved. This program and the accompanying materials
    are made available under the terms of the Eclipse Public License v1.0
    which accompanies this distribution, and is available at
    http://www.eclipse.org/legal/epl-v10.html
   
    Contributors:
        Abel Gómez (agomezlla@uoc.edu) - initial API and implementation
 -->

<plugin>

   <extension
         point="org.eclipse.ui.commands">
      <category
            name="Publish-Subscribe"
            id="io.github.abelgomez.ps.transformer.ui.commands.category">
      </category>
      <command
            name="Generate Petri net"
            categoryId="io.github.abelgomez.ps.transformer.ui.commands.category"
            id="io.github.abelgomez.ps.transformer.ui.commands.transform">
      </command>
   </extension>
   <extension
         point="org.eclipse.ui.handlers">
      <handler
            commandId="io.github.abelgomez.ps.transformer.ui.commands.transform"
            class="io.github.abelgomez.ps.transformer.ui.handlers.TransformHandler">
      </handler>
   </extension>
   <extension
         point="org.eclipse.ui.menus">
      <menuContribution
            locationURI="popup:org.eclipse.ui.popup.any?after=additions">
         <menu
               icon="icons/full/obj16/publish-subscribe.png"
               id="io.github.abelgomez.ps.transformer.ui.menus.transformer"
               label="Publish-Subscribe Tools"
               mnemonic="P">
            <command
                  commandId="io.github.abelgomez.ps.transformer.ui.commands.transform"
                  icon="icons/full/obj16/petri-net.png"
                  id="io.github.abelgomez.ps.transformer.ui.menus.transform"
                  label="Generate Petri net..."
                  mnemonic="G">
            </command>
            <visibleWhen
                  checkEnabled="false">
               <and>
                  <count
                        value="+">
                  </count>
                                 <iterate>
                  <or>
                     <adapt
                           type="org.eclipse.papyrus.infra.onefile.model.IPapyrusElement">
                     </adapt>
                     <and>
                        <adapt
                              type="org.eclipse.core.resources.IFile">
                        </adapt>
                        <or>
                           <test
                                 forcePluginActivation="true"
                                 property="org.eclipse.core.resources.extension"
                                 value="notation">
                           </test>
                           <test
                                 forcePluginActivation="true"
                                 property="org.eclipse.core.resources.extension"
                                 value="di">
                           </test>
                           <test
                                 forcePluginActivation="true"
                                 property="org.eclipse.core.resources.extension"
                                 value="uml">
                           </test>
                        </or>
                     </and>
                  </or>
               </iterate>
               </and>

            </visibleWhen>
         </menu>
      </menuContribution>
   </extension>
   <extension
         point="org.eclipse.core.runtime.adapters">
      <factory
            adaptableType="org.eclipse.core.resources.IFile"
            class="io.github.abelgomez.ps.transformer.ui.adapters.UmlModelAdapterFactory">
         <adapter
               type="org.eclipse.papyrus.uml.tools.model.UmlModel">
         </adapter>
 </factory>
      <factory
            adaptableType="org.eclipse.papyrus.infra.onefile.model.IPapyrusElement"
            class="io.github.abelgomez.ps.transformer.ui.adapters.UmlModelAdapterFactory">
         <adapter
               type="org.eclipse.papyrus.uml.tools.model.UmlModel">
         </adapter>
      </factory>
   </extension>
   <extension
         point="org.eclipse.ui.preferencePages">
      <page
            category="io.github.abelgomez.ps.transformer.ui.preferences.root"
            class="io.github.abelgomez.ps.transformer.ui.preferences.UriPreferencePage"
            id="io.github.abelgomez.ps.transformer.ui.preferences.uri"
            name="Transformation">
      </page>
      <page
            class="io.github.abelgomez.ps.transformer.ui.preferences.RootPreferencePage"
            id="io.github.abelgomez.ps.transformer.ui.preferences.root"
            name="Publish-Subscribe Tools">
      </page>
   </extension>
   <extension
         point="io.github.abelgomez.ps.transformer.uri_provider">
      <URI
            priority="5"
            provider="io.github.abelgomez.ps.transformer.ui.provider.DynamicUriProvider">
      </URI>
   </extension>
   <extension
         point="org.eclipse.core.runtime.preferences">
      <initializer
            class="io.github.abelgomez.ps.transformer.ui.preferences.PreferenceInitializer">
      </initializer>
   </extension>

</plugin>