protected void lazyInitialize() {
if (descriptors != null) return;
IExtensionPoint point =
Platform.getExtensionRegistry()
.getExtensionPoint(ResourcesPlugin.PI_RESOURCES, ResourcesPlugin.PT_MODEL_PROVIDERS);
IExtension[] extensions = point.getExtensions();
descriptors = new HashMap(extensions.length * 2 + 1);
for (int i = 0, imax = extensions.length; i < imax; i++) {
IModelProviderDescriptor desc = null;
try {
desc = new ModelProviderDescriptor(extensions[i]);
} catch (CoreException e) {
Policy.log(e);
}
if (desc != null) descriptors.put(desc.getId(), desc);
}
// do cycle detection now so it only has to be done once
// cycle detection on a graph subset is a pain
detectCycles();
}
/**
* Creates a WizardElement representing the template extension to be used by this wizard.
*
* @return element representing the template or <code>null</code> if the extension could not be
* loaded
*/
private WizardElement getTemplateWizard() {
String templateID = getTemplateID();
if (templateID == null) {
return null;
}
IExtensionRegistry registry = Platform.getExtensionRegistry();
IExtensionPoint point = registry.getExtensionPoint(PDEPlugin.getPluginId(), PLUGIN_POINT);
if (point == null) {
return null;
}
IExtension[] extensions = point.getExtensions();
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(TAG_WIZARD)) {
if (templateID.equals(elements[j].getAttribute(WizardElement.ATT_ID))) {
return WizardElement.create(elements[j]);
}
}
}
}
return null;
}