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- package com.vaadin.tests;
-
- import java.io.File;
- import java.io.IOException;
- import java.lang.reflect.Modifier;
- import java.net.JarURLConnection;
- import java.net.URISyntaxException;
- import java.net.URL;
- import java.util.ArrayList;
- import java.util.Collection;
- import java.util.Collections;
- import java.util.Comparator;
- import java.util.Enumeration;
- import java.util.List;
- import java.util.jar.JarEntry;
-
- import com.vaadin.server.VaadinSession;
- import com.vaadin.ui.Component;
- import com.vaadin.ui.ComponentContainer;
- import com.vaadin.ui.CustomComponent;
- import com.vaadin.ui.DragAndDropWrapper;
- import com.vaadin.ui.HorizontalSplitPanel;
- import com.vaadin.ui.LoginForm;
- import com.vaadin.ui.PopupView;
- import com.vaadin.ui.UI;
- import com.vaadin.ui.VerticalSplitPanel;
- import com.vaadin.ui.Window;
-
- @SuppressWarnings("deprecation")
- public class VaadinClasses {
-
- public static List<Class<? extends Component>> getComponents() {
- try {
- return findClasses(Component.class, "com.vaadin.ui");
- } catch (IOException e) {
- e.printStackTrace();
- return null;
- }
- }
-
- public static List<Class<? extends ComponentContainer>> getComponentContainers() {
- try {
- return findClasses(ComponentContainer.class, "com.vaadin.ui");
- } catch (IOException e) {
- e.printStackTrace();
- return null;
- }
- }
-
- public static List<Class<? extends ComponentContainer>> getComponentContainersSupportingAddRemoveComponent() {
- List<Class<? extends ComponentContainer>> classes = getComponentContainers();
- classes.remove(PopupView.class);
- classes.remove(CustomComponent.class);
- classes.remove(DragAndDropWrapper.class);
- classes.remove(CustomComponent.class);
- classes.remove(LoginForm.class);
- classes.remove(UI.class);
-
- return classes;
- }
-
- public static List<Class<? extends ComponentContainer>> getComponentContainersSupportingUnlimitedNumberOfComponents() {
- List<Class<? extends ComponentContainer>> classes = getComponentContainersSupportingAddRemoveComponent();
- classes.remove(VerticalSplitPanel.class);
- classes.remove(HorizontalSplitPanel.class);
- classes.remove(Window.class);
-
- return classes;
- }
-
- private static <T> List<Class<? extends T>> findClasses(Class<T> baseClass,
- String basePackage) throws IOException {
- return findClasses(baseClass, basePackage, new String[] {});
- }
-
- private static <T> List<Class<? extends T>> findClasses(Class<T> baseClass,
- String basePackage, String[] ignoredPackages) throws IOException {
- List<Class<? extends T>> classes = new ArrayList<>();
- String basePackageDirName = "/" + basePackage.replace('.', '/');
- URL location = VaadinSession.class.getResource(basePackageDirName);
- if (location.getProtocol().equals("file")) {
- try {
- File f = new File(location.toURI());
- if (!f.exists()) {
- throw new IOException(
- "Directory " + f.toString() + " does not exist");
- }
- findPackages(f, basePackage, baseClass, classes,
- ignoredPackages);
- } catch (URISyntaxException e) {
- throw new IOException(e.getMessage());
- }
- } else if (location.getProtocol().equals("jar")) {
- JarURLConnection juc = (JarURLConnection) location.openConnection();
- findPackages(juc, basePackage, baseClass, classes);
- }
-
- Collections.sort(classes, new Comparator<Class<? extends T>>() {
-
- @Override
- public int compare(Class<? extends T> o1, Class<? extends T> o2) {
- return o1.getName().compareTo(o2.getName());
- }
-
- });
- return classes;
- }
-
- private static <T> void findPackages(JarURLConnection juc,
- String javaPackage, Class<T> baseClass,
- Collection<Class<? extends T>> result) throws IOException {
- String prefix = "com/vaadin/ui";
- Enumeration<JarEntry> ent = juc.getJarFile().entries();
- while (ent.hasMoreElements()) {
- JarEntry e = ent.nextElement();
- if (e.getName().endsWith(".class")
- && e.getName().startsWith(prefix)) {
- String fullyQualifiedClassName = e.getName().replace('/', '.')
- .replace(".class", "");
- addClassIfMatches(result, fullyQualifiedClassName, baseClass);
- }
- }
- }
-
- private static <T> void findPackages(File parent, String javaPackage,
- Class<T> baseClass, Collection<Class<? extends T>> result,
- String[] ignoredPackages) {
- for (String ignoredPackage : ignoredPackages) {
- if (javaPackage.equals(ignoredPackage)) {
- return;
- }
- }
-
- for (File file : parent.listFiles()) {
- if (file.isDirectory()) {
- findPackages(file, javaPackage + "." + file.getName(),
- baseClass, result, ignoredPackages);
- } else if (file.getName().endsWith(".class")) {
- String fullyQualifiedClassName = javaPackage + "."
- + file.getName().replace(".class", "");
- addClassIfMatches(result, fullyQualifiedClassName, baseClass);
- }
- }
-
- }
-
- @SuppressWarnings("unchecked")
- private static <T> void addClassIfMatches(
- Collection<Class<? extends T>> result,
- String fullyQualifiedClassName, Class<T> baseClass) {
- try {
- // Try to load the class
-
- Class<?> c = Class.forName(fullyQualifiedClassName);
- if (baseClass.isAssignableFrom(c)
- && !Modifier.isAbstract(c.getModifiers())
- && !c.isAnonymousClass() && !c.isMemberClass()
- && !c.isLocalClass()) {
- result.add((Class<? extends T>) c);
- }
- } catch (Exception e) {
- // Could ignore that class cannot be loaded
- e.printStackTrace();
- } catch (LinkageError e) {
- // Ignore. Client side classes will at least throw LinkageErrors
- }
-
- }
- }
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