package org.jtheque.core.utils; import org.jtheque.utils.ui.SwingUtils; import org.springframework.context.ApplicationContext; import org.springframework.context.ApplicationContextAware; /* * Copyright JTheque (Baptiste Wicht) * * 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. */ /* * Copyright JTheque (Baptiste Wicht) * * 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. */ /** * A Swing Spring Proxy. It's a proxy for a swing bean guaranteeing that the bean is created in the EDT. * * @author Baptiste Wicht */ public class SwingSpringProxy<T> implements ApplicationContextAware { private final Class<T> classz; private ApplicationContext applicationContext; private T instance; /** * Construct a new SwingSpringProxy of the given class. * * @param classz The class of the view. * @param applicationContext The application context. */ public SwingSpringProxy(Class<T> classz, ApplicationContext applicationContext) { super(); this.classz = classz; this.applicationContext = applicationContext; } /** * Construct a new SwingSpringProxy of the given class. Only used for beans in Spring contexts * * @param classz The class of the view. */ public SwingSpringProxy(Class<T> classz) { super(); this.classz = classz; } /** * Return the instance of the view. The instance is only created only once. This proxy assert that the instance is * created in EDT. * * @return The instance of the view. */ public T get() { if (instance == null) { createInstance(); } return instance; } /** * Indicate if the instance of the proxy has been created or not. * * @return true if the instance has been created else false. */ public boolean isCreated(){ return instance != null; } /** * Create the instance in the EDT. */ private void createInstance() { SwingUtils.inEdt(new Runnable() { @Override public void run() { instance = applicationContext.getBean(classz); } }); } @Override public void setApplicationContext(ApplicationContext applicationContext) { this.applicationContext = applicationContext; } }