Examples of org.eclipse.core.runtime.IConfigurationElement

org.eclipse.core.runtime.IConfigurationElement
A configuration element, with its attributes and children, directly reflects the content and structure of the extension section within the declaring plug-in's manifest (plugin.xml) file.
This interface also provides a way to create executable extension objects.

These registry objects are intended for relatively short-term use. Clients that deal with these objects must be aware that they may become invalid if the declaring plug-in is updated or uninstalled. If this happens, all methods except {@link #isValid()} will throw {@link InvalidRegistryObjectException}. For configuration element objects, the most common case is code in a plug-in dealing with extensions contributed to one of the extension points it declares. Code in a plug-in that has declared that it is not dynamic aware (or not declared anything) can safely ignore this issue, since the registry would not be modified while it is active. However, code in a plug-in that declares that it is dynamic aware must be careful when accessing the extension and configuration element objects because they become invalid if the contributing plug-in is removed. Similarly, tools that analyze or display the extension registry are vulnerable. Client code can pre-test for invalid objects by calling {@link #isValid()}, which never throws this exception. However, pre-tests are usually not sufficient because of the possibility of the extension or configuration element object becoming invalid as a result of a concurrent activity. At-risk clients must treat InvalidRegistryObjectException as if it were a checked exception. Also, such clients should probably register a listener with the extension registry so that they receive notification of any changes to the registry.
This interface can be used without OSGi running.
This interface is not intended to be implemented by clients.


  public static String getWizardBannerPath(String serverTypeId) {
    if (!read) {
      readBrandingDefinitions();
    }
    IConfigurationElement config = brandingDefinitions.get(serverTypeId);
    if (config != null) {
      return config.getAttribute(ATTR_WIZ_BAN);
    }
    return null;
  }

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    }
    return image;
  }


  public static ImageDescriptor getWizardBanner(String serverTypeId) {
    IConfigurationElement config = CloudFoundryBrandingExtensionPoint.getConfigurationElement(serverTypeId);
    String wizBanner = CloudFoundryBrandingExtensionPoint.getWizardBannerPath(serverTypeId);
    if (config != null && wizBanner != null && wizBanner.trim().length() > 0) {
      String bundle = config.getContributor().getName();
      return AbstractUIPlugin.imageDescriptorFromPlugin(bundle, wizBanner);
    }
    return null;
  }

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   * 
   * @return Bundle
   */
  protected URL getPageExtensionPath(String extensionPoint, String extensionName) {
    List extensions = serverManager.getExtensions(extensionPoint, extensionName);
    IConfigurationElement winner = null;
    int highest = -100000;
    for (int i = 0; i < extensions.size(); i++) {
      IConfigurationElement extension = (IConfigurationElement) extensions.get(i);
      int priority = Integer.parseInt(extension.getAttribute(IDavinciServerConstants.EP_ATTR_PAGE_PRIORITY));
      if ( priority > highest ) {
        winner = extension;
        highest = priority;
      }
    }

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public class WizardHelper
{
    public static RepositoryWizard loadWizard(IRepositoryType type) throws CoreException
    {
        IConfigurationElement e = findWizardConfig(type.getId());


        if (e == null)
        {
            throw SigilCore.newCoreException("No wizard registered for repository "
                + type, null);
        }


        return (RepositoryWizard) e.createExecutableExtension("class");
    }

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  /* (non-Javadoc)
   * @see org.davinci.server.IServerManager#getUserManager()
   */
  public IUserManager getUserManager() {
    if (userManager == null) {
      IConfigurationElement libraryElement = ServerManager.getServerManager().getExtension(IDavinciServerConstants.EXTENSION_POINT_USER_MANAGER, IDavinciServerConstants.EP_TAG_USER_MANAGER);
      if (libraryElement != null) {
        try {
          this.userManager = (IUserManager) libraryElement.createExecutableExtension(IDavinciServerConstants.EP_ATTR_CLASS);
        } catch (CoreException e) {
          theLogger.logp(Level.SEVERE, ServerManager.class.getName(), "getUserManager", "unexpected failure", e);
          throw new Error(e);
        }
      }

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  public IConfigurationElement getExtension(String extensionPoint, String elementTag) {
    IExtension[] extensions = this.getExtensions(extensionPoint);


    IConfigurationElement winner = null;
    int highest = -100000;
    for(int i=0;i<extensions.length;i++){
      IConfigurationElement[] elements = extensions[i].getConfigurationElements();
      for (int j = 0; j < elements.length; j++) {
        if (elements[j].getName().equals(elementTag)) {

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  }


  public IPersonManager getPersonManager() {


    if(this.personManager==null){
      IConfigurationElement libraryElement = ServerManager.getServerManager().getExtension(IDavinciServerConstants.EXTENSION_POINT_PERSON_MANAGER,
          IDavinciServerConstants.EP_TAG_PERSON_MANAGER);
      if (libraryElement != null) {
        try {
          this.personManager = (IPersonManager) libraryElement.createExecutableExtension(IDavinciServerConstants.EP_ATTR_CLASS);
        } catch (CoreException e) {
          theLogger.logp(Level.SEVERE, ServerManager.class.getName(), "getPersonManager", "unexpected failure", e);
          throw new Error(e);
        }
      }

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    if(initFiles){
      List extensions = ServerManager.getServerManager().getExtensions(IDavinciServerConstants.EXTENSION_POINT_INITIAL_USER_FILES,
                  IDavinciServerConstants.EP_TAG_INITIAL_USER_FILE);
          for (Iterator iterator = extensions.iterator(); iterator.hasNext();) {
              IConfigurationElement libraryElement = (IConfigurationElement) iterator.next();
              String path = libraryElement.getAttribute(IDavinciServerConstants.EP_ATTR_INITIAL_USER_FILE_PATH);
              String name = libraryElement.getDeclaringExtension().getContributor().getName();
              Bundle bundle = Activator.getActivator().getOtherBundle(name);
              IStorage file = null;
        try {
          
          file = new StorageFileSystem(project.getURI().getPath()+ "/" + basePath);

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        IDavinciServerConstants.EP_TAG_AJAXLIBRARY);
    this.installedLibraries = new Library[extensions.size()];
    int count = -1;
    for (Iterator iterator = extensions.iterator(); iterator.hasNext();) {
      count++;
      IConfigurationElement libraryElement = (IConfigurationElement) iterator
          .next();
      String id = libraryElement
          .getAttribute(IDavinciServerConstants.EP_ATTR_METADATA_ID);
      String version = libraryElement
          .getAttribute(IDavinciServerConstants.EP_ATTR_METADATA_VERSION);


      if (id == null || version == null || id.equals("")
          || version.equals("")) {
        System.err
            .println("Problem reading library data, no ID or Version defined :"
                + libraryElement.getName());


      }
      Library libInfo = findLibrary(id, version);


      if (libInfo == null) {
        libInfo = new BundleLibraryInfo(id, version);
        this.installedLibraries[count] = libInfo;
      }
      String required = libraryElement
          .getAttribute(IDavinciServerConstants.EP_ATTR_REQUIRED);
      ((BundleLibraryInfo) libInfo).setRequired(required);
      
      IConfigurationElement[] libraryPathElements = libraryElement
          .getChildren(IDavinciServerConstants.EP_TAG_LIBRARYPATH);


      for (int i = 0; i < libraryPathElements.length; i++) {
        String virtualPath = libraryPathElements[i]
            .getAttribute(IDavinciServerConstants.EP_ATTR_LIBRARYPATH_NAME);
        String bundlePath = libraryPathElements[i]
            .getAttribute(IDavinciServerConstants.EP_ATTR_LIBRARYPATH_LOCATION);
        String source = libraryPathElements[i]
                .getAttribute(IDavinciServerConstants.EP_ATTR_LIBRARYPATH_SOURCE);
        ((BundleLibraryInfo) libInfo).setBasePath(bundlePath, virtualPath, source);
      }


      if (libInfo instanceof BundleLibraryInfo) {
        ((BundleLibraryInfo) libInfo).bundleBase = getLibraryBundle(libraryElement);
      }


      IConfigurationElement[] meta = libraryElement.getChildren("metadata");
      for (int i = 0; i < meta.length; i++) {
        libInfo.setMetadataPath(meta[i].getAttribute("location"));
      }

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  private static IFormatterProcessorFactory getFormatterFactory() {
    if (formatterFactory == null) {
      IConfigurationElement[] elements = Platform.getExtensionRegistry().getConfigurationElementsFor(extensionName);
      for (int i = 0; i < elements.length; i++) {
        final IConfigurationElement element = elements[i];
        if (element.getName().equals("processor")) { //$NON-NLS-1$
          SafeRunner.run(new ISafeRunnable() {
            public void run() throws Exception {
              final Object object = element.createExecutableExtension("class"); //$NON-NLS-1$
              if (object instanceof IFormatterProcessorFactory) {
                formatterFactory = (IFormatterProcessorFactory) object;
              }
            }

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