import org.eclipse.pde.internal.core.project.PDEProject; //导入依赖的package包/类
/**
 * @see IActionDelegate#run(IAction)
 */
public void run(IAction action) {
	//System.out.println("OcciRegistry" + OcciRegistry.getInstance().getRegisteredExtensions()) ;
	//System.out.println(" selection "+selection);
	Iterator<?> it = ((IStructuredSelection) selection).iterator();
	int i= 0;
	String message="\n";
	while (it.hasNext()) { 
		
		IProject selectedProject = (IProject)it.next();
		if(selectedProject instanceof IProject) {
			// Generate plugin.xml
			IFile pluginXML = PDEProject.getPluginXml(selectedProject);
			if(pluginXML.exists()) {
				if (!(getExtensionScheme(pluginXML).equals("") || getExtensionURI(pluginXML).equals(""))) {
				//System.out.println(" selectedElement "+selectedProject +"   "+selectedProject.getClass());
				//System.out.println(" selectedElement "+getExtensionScheme(pluginXML));
				//System.out.println(" selectedElement "+getExtensionURI(pluginXML));
				OcciRegistry.getInstance().registerExtension(getExtensionScheme(pluginXML), getExtensionURI(pluginXML));
				closeOtherSessions(selectedProject);
				i++;
				message = message.concat(getExtensionScheme(pluginXML)).concat("\n");
				}
		}
		}
	}
	if(i>0)
	MessageDialog.openInformation(shell,
			Messages.RegisterExtensionAction_ExtRegistration,
			Messages.RegisterExtensionAction_RegisteredExtension
					+message);
}
 

import org.eclipse.pde.internal.core.project.PDEProject; //导入依赖的package包/类
/**
 * Get the plugin.xml file of current project, returns {@code null} if no project is available.
 *
 * @param catalogUri
 *          URI of catalog
 * @return the plugin.xml file or {@code null}
 */
protected IFile getPluginFile(final URI catalogUri) {
  final IProject project = RuntimeProjectUtil.getProject(catalogUri, mapper);
  if (project == null) {
    return null;
  }
  String pluginXmlFilename = projectHelper.getProjectPreference(project, PREFERENCE_PLUGIN_XML_FILENAME);
  if (pluginXmlFilename != null) {
    return project.getFile(pluginXmlFilename);
  } else {
    return PluginRegistry.findModel(project) instanceof IFragmentModel ? PDEProject.getFragmentXml(project) : PDEProject.getPluginXml(project);
  }
}
 

import org.eclipse.pde.internal.core.project.PDEProject; //导入依赖的package包/类
public GenerateExtensions(final IProject p) {
  try {
    this.project = p;
    final IFile pluginXml = PDEProject.getPluginXml(this.project);
    final IFile manifest = PDEProject.getManifest(this.project);
    WorkspaceBundlePluginModel _workspaceBundlePluginModel = new WorkspaceBundlePluginModel(manifest, pluginXml);
    this.fModel = _workspaceBundlePluginModel;
    IPluginModelBase sourceModel = null;
    IPluginModelBase[] _workspaceModels = PluginRegistry.getWorkspaceModels();
    for (final IPluginModelBase m : _workspaceModels) {
      if (((m.getBundleDescription() != null) && this.project.getName().equals(m.getBundleDescription().getSymbolicName()))) {
        sourceModel = m;
      }
    }
    IPluginExtensionPoint[] _extensionPoints = sourceModel.getExtensions().getExtensionPoints();
    for (final IPluginExtensionPoint ept : _extensionPoints) {
      this.fModel.getPluginBase().add(this.copyExtensionPoint(ept));
    }
    IPluginExtension[] _extensions = sourceModel.getExtensions().getExtensions();
    for (final IPluginExtension e : _extensions) {
      this.fModel.getPluginBase().add(this.copyExtension(e));
    }
    PDECore.getDefault().getModelManager().bundleRootChanged(this.project);
  } catch (Throwable _e) {
    throw Exceptions.sneakyThrow(_e);
  }
}
 

import org.eclipse.pde.internal.core.project.PDEProject; //导入依赖的package包/类
private void configureOCCIEExtension(IProgressMonitor monitor) throws CoreException {
	IFile manifest = PDEProject.getManifest(project);
	String manifestContent = "Manifest-Version: 1.0\n" + "Bundle-ManifestVersion: 2\n" + "Bundle-Name: "
			+ project.getName() + "\n" + "Bundle-SymbolicName: " + project.getName() + ";singleton:=true\n"
			+ "Bundle-Version: 1.0.0.qualifier\n" + "Bundle-ClassPath: .\n" + "Bundle-Vendor: OCCIware\n" +
			// "Bundle-Localization: plugin\n" + // FIXME: require to
			// generate plugin.properties
			"Bundle-RequiredExecutionEnvironment: JavaSE-1.8\n" + "Bundle-ActivationPolicy: lazy\n"
			+ "Require-Bundle: org.eclipse.emf.ecore;visibility:=reexport,\n"
			+ " org.eclipse.cmf.occi.core;visibility:=reexport,\n" + " org.eclipse.cmf.occi.core.ui,\n"
			+ " org.eclipse.cmf.occi.core.gen.emf.ui\n";
	manifest.setContents(new ByteArrayInputStream(manifestContent.getBytes()), true, false, monitor);

	IFile pluginXML = PDEProject.getPluginXml(project);
	String pluginContent = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" + "<?eclipse version=\"3.0\"?>\n"
			+ "<!--\n" + " Copyright (c) 2015-2017 Obeo, Inria\n"
			+ " All rights reserved. This program and the accompanying materials\n"
			+ " are made available under the terms of the Eclipse Public License v1.0\n"
			+ " which accompanies this distribution, and is available at\n"
			+ " http://www.eclipse.org/legal/epl-v10.html\n" + "\n" + " Contributors:\n"
			+ " - William Piers <[email protected]>\n" + " - Philippe Merle <[email protected]>\n"
			+ " - Faiez Zalila <[email protected]>\n"
			+ "-->\n" + "<plugin>\n" + "\n" + "   <!-- Register the " + extensionName + " extension. -->\n"
			+ "   <extension point=\"org.eclipse.cmf.occi.core.occie\">\n" + "      <occie scheme=\""
			+ extensionScheme + "\" file=\"model/" + extensionName + ".occie\"/>\n" + "   </extension>\n" + "\n"
			+ "   <!-- Define URI mapping. -->\n" + "   <extension point=\"org.eclipse.emf.ecore.uri_mapping\">\n"
			+ "      <mapping source=\"" + extensionScheme.substring(0, extensionScheme.length() - 1)
			+ "\" target=\"platform:/plugin/" + project.getName() + "/model/" + extensionName + ".occie\"/>\n"
			+ "   </extension>\n" + "\n" + "   <!-- Register the parser for ." + extensionName + " files. -->\n"
			+ "   <extension point=\"org.eclipse.emf.ecore.extension_parser\">\n" + "      <parser type=\""
			+ extensionName + "\" class=\"org.eclipse.cmf.occi.core.util.OCCIResourceFactoryImpl\"/>\n"
			+ "   </extension>\n" + "\n" + "   <!-- Popup menu for converting to an OCCI Configuration file. -->\n"
			+ "   <extension point=\"org.eclipse.ui.popupMenus\">\n" + "      <objectContribution\n"
			+ "            id=\"" + newProjectPage.getProjectName() + ".contribution\"\n"
			+ "            nameFilter=\"*." + extensionName + "\"\n"
			+ "            objectClass=\"org.eclipse.core.resources.IFile\">\n" + "         <menu\n"
			+ "               id=\"org.eclipse.cmf.occi.core.occi-studio.ui.menu\"\n"
			+ "               label=\"OCCI Studio\"\n" + "               path=\"additionsOCCIStudio\">\n"
			+ "            <separator name=\"group\"/>\n" + "         </menu>\n" + "         <action\n"
			+ "               class=\"org.eclipse.cmf.occi.core.ui.popup.actions.ExtensionConfiguration2OCCICAction\"\n"
			+ "               enablesFor=\"1\"\n" + "               id=\"" + newProjectPage.getProjectName()
			+ ".ecore2occi\"\n" + "               label=\"Convert to an OCCI Configuration File\"\n"
			+ "               menubarPath=\"org.eclipse.cmf.occi.core.occi-studio.ui.menu/group\">\n"
			+ "         </action>\n" + "      </objectContribution>\n" + "   </extension>\n" + "</plugin>\n";
	pluginXML.create(new ByteArrayInputStream(pluginContent.getBytes()), true, monitor);

	IFile build = PDEProject.getBuildProperties(project);
	String buildContent = "# Copyright (c) 2015-2017 Obeo, Inria\n"
			+ "# All rights reserved. This program and the accompanying materials\n"
			+ "# are made available under the terms of the Eclipse Public License v1.0\n"
			+ "# which accompanies this distribution, and is available at\n"
			+ "# http://www.eclipse.org/legal/epl-v10.html\n" + "#\n" + "# Contributors:\n"
			+ "# - William Piers <[email protected]>\n" + "# - Philippe Merle <[email protected]>\n"
			+ "# - Faiez Zalila <[email protected]>\n"
			+ "\n" + "source.. = src-gen/\n" + "jars.compile.order = .\n" + "output.. = bin/\n"
			+ "bin.includes = .,\\\n" + "				model/,\\\n" + "				META-INF/,\\\n"
			+ "				plugin.xml,\\\n" + "				plugin.properties\n";
	build.setContents(new ByteArrayInputStream(buildContent.getBytes()), true, false, monitor);
}