import org.eclipse.pde.internal.core.util.CoreUtility; //导入依赖的package包/类
/**
 * Removes the contexts for all checks of a deleted catalog.
 *
 * @param delta
 *          the delta
 * @throws CoreException
 *           the core exception
 */
@SuppressWarnings("unchecked")
public void removeContexts(final Delta delta) throws CoreException {
  final IProject project = RuntimeProjectUtil.getProject(delta.getUri(), mapper);
  if (project != null) {
    IFile file = projectHelper.getHelpFile(project, CheckContextsExtensionHelper.CONTEXTS_FILE_NAME);

    CtxHelpModel model = new CtxHelpModel(CoreUtility.getTextDocument(file.getContents()), false);
    model.setUnderlyingResource(file);
    model.load();

    CtxHelpRoot root = model.getCtxHelpRoot();
    Iterable<CtxHelpContext> contexts = Iterables.filter(Lists.newArrayList(root.getChildren()), CtxHelpContext.class);
    for (CtxHelpContext context : contexts) {
      Iterable<IEObjectDescription> catalogs = delta.getOld().getExportedObjectsByType(CheckPackage.Literals.CHECK_CATALOG);
      for (IEObjectDescription catalog : catalogs) {
        if (context.getId().startsWith(catalog.getName().getLastSegment().toLowerCase() + "_")) {
          root.removeChild(context);
        }
      }
    }
    model.save();
    model.dispose();
  }
}
 

import org.eclipse.pde.internal.core.util.CoreUtility; //导入依赖的package包/类
@Override
public void run() {
	try {
		for (IProject project : getRelevantProjects()) {
			CoreUtility.addNatureToProject(project, ProductNature.ID, new NullProgressMonitor());
		}
	} catch (CoreException e) {
		throw new RuntimeException("Failed to add nature", e);
	}
}
 

import org.eclipse.pde.internal.core.util.CoreUtility; //导入依赖的package包/类
private static IFeaturePlugin createInclude(final IFeatureModel parentModel,
		final IPluginModelBase pluginModelToInclude) throws CoreException {
	FeaturePlugin plugin = (FeaturePlugin) parentModel.getFactory().createPlugin();
	plugin.setId(pluginModelToInclude.getPluginBase().getId());
	plugin.setVersion("0.0.0");
	plugin.setFragment(pluginModelToInclude.isFragmentModel());
	plugin.setUnpack(CoreUtility.guessUnpack(pluginModelToInclude.getBundleDescription()));
	return plugin;
}
 

import org.eclipse.pde.internal.core.util.CoreUtility; //导入依赖的package包/类
/**
 * Loads toc model and sets toc.xml as underlying resource.
 * 
 * @param uri
 *          the uri
 * @return the toc model
 * @throws CoreException
 *           the core exception if model could not be loaded
 */
private TocModel loadTocModel(final URI uri) throws CoreException {
  IFile file = projectHelper.getHelpFile(uri, CheckTocExtensionHelper.TOC_FILE_NAME);
  TocModel model = new TocModel(CoreUtility.getTextDocument(file.getContents()), false);
  model.setUnderlyingResource(file);
  model.load(file.getContents(), false);
  return model;
}