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- /*
- * Copyright 2000-2018 Vaadin Ltd.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-
- package com.vaadin.server;
-
- import java.net.MalformedURLException;
- import java.net.URL;
- import java.util.regex.Matcher;
- import java.util.regex.Pattern;
-
- import com.vaadin.ui.LegacyWindow;
- import com.vaadin.ui.UI;
-
- /**
- *
- * @author Vaadin Ltd
- * @since 7.0.0
- *
- * @deprecated As of 7.0. Used only to support LegacyApplication - will be
- * removed when LegacyApplication support is removed.
- */
- @Deprecated
- public abstract class LegacyApplicationUIProvider extends UIProvider {
- /**
- * Ignore initial / and then get everything up to the next /
- */
- private static final Pattern WINDOW_NAME_PATTERN = Pattern
- .compile("^/?([^/]+).*");
-
- @Override
- public Class<? extends UI> getUIClass(UIClassSelectionEvent event) {
- UI uiInstance = getUIInstance(event);
- if (uiInstance != null) {
- return uiInstance.getClass();
- }
- return null;
- }
-
- @Override
- public UI createInstance(UICreateEvent event) {
- return getUIInstance(event);
- }
-
- @Override
- public String getTheme(UICreateEvent event) {
- LegacyApplication application = getApplication();
- if (application != null) {
- return application.getTheme();
- } else {
- return null;
- }
- }
-
- @Override
- public String getPageTitle(UICreateEvent event) {
- UI uiInstance = getUIInstance(event);
- if (uiInstance != null) {
- return uiInstance.getCaption();
- } else {
- return super.getPageTitle(event);
- }
- }
-
- private UI getUIInstance(UIProviderEvent event) {
- VaadinRequest request = event.getRequest();
- String pathInfo = request.getPathInfo();
- String name = null;
- if (pathInfo != null && !pathInfo.isEmpty()) {
- Matcher matcher = WINDOW_NAME_PATTERN.matcher(pathInfo);
- if (matcher.matches()) {
- // Skip the initial slash
- name = matcher.group(1);
- }
- }
-
- LegacyApplication application = getApplication();
- if (application == null) {
- return null;
- }
- LegacyWindow window = application.getWindow(name);
- if (window != null) {
- return window;
- }
- return application.getMainWindow();
- }
-
- /**
- * Hack used to return existing LegacyWindow instances without regard for
- * out-of-sync problems.
- *
- * @param event
- * @return
- */
- public UI getExistingUI(UIClassSelectionEvent event) {
- UI uiInstance = getUIInstance(event);
- if (uiInstance == null || uiInstance.getUIId() == -1) {
- // Not initialized -> Let go through createUIInstance to make it
- // initialized
- return null;
- } else {
- UI.setCurrent(uiInstance);
- return uiInstance;
- }
- }
-
- private LegacyApplication getApplication() {
- LegacyApplication application = VaadinSession.getCurrent()
- .getAttribute(LegacyApplication.class);
- if (application == null) {
- application = createApplication();
- if (application == null) {
- return null;
- }
- VaadinSession.getCurrent().setAttribute(LegacyApplication.class,
- application);
-
- URL applicationUrl;
- try {
- applicationUrl = VaadinService.getCurrent()
- .getApplicationUrl(VaadinService.getCurrentRequest());
- } catch (MalformedURLException e) {
- throw new RuntimeException(e);
- }
- application.doInit(applicationUrl);
- }
-
- if (application != null && !application.isRunning()) {
- VaadinSession.getCurrent().setAttribute(LegacyApplication.class,
- null);
- // Run again without a current application
- return getApplication();
- }
-
- return application;
- }
-
- protected abstract LegacyApplication createApplication();
-
- }
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