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/com/bekwam/examples/javafx/dynamic/app_core/HomeScreenController.java
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package com.bekwam.examples.javafx.dynamic.app_core; | |
import com.bekwam.examples.javafx.dynamic.annotations.SubApp; | |
import com.google.inject.AbstractModule; | |
import com.google.inject.Guice; | |
import com.google.inject.Injector; | |
import javafx.application.Platform; | |
import javafx.event.ActionEvent; | |
import javafx.fxml.FXML; | |
import javafx.fxml.FXMLLoader; | |
import javafx.fxml.JavaFXBuilderFactory; | |
import javafx.scene.Parent; | |
import javafx.scene.Scene; | |
import javafx.scene.control.Button; | |
import javafx.scene.layout.VBox; | |
import javafx.stage.Stage; | |
import javafx.util.BuilderFactory; | |
import javafx.util.Callback; | |
import org.apache.commons.lang3.StringUtils; | |
import org.reflections.Reflections; | |
import org.reflections.util.ClasspathHelper; | |
import org.reflections.util.ConfigurationBuilder; | |
import org.slf4j.Logger; | |
import org.slf4j.LoggerFactory; | |
import java.io.File; | |
import java.io.FilenameFilter; | |
import java.io.IOException; | |
import java.net.MalformedURLException; | |
import java.net.URL; | |
import java.net.URLClassLoader; | |
import java.util.ArrayList; | |
import java.util.Comparator; | |
import java.util.LinkedHashMap; | |
import java.util.List; | |
import java.util.Map; | |
import java.util.Set; | |
/** | |
* Created by carl_000 on 2/14/2015. | |
*/ | |
public class HomeScreenController { | |
private Logger logger = LoggerFactory.getLogger(HomeScreenController.class); | |
@FXML | |
VBox vbox; | |
private final String DEFAULT_PACKAGE_TO_SCAN = "com.bekwam.examples.javafx.dynamic"; | |
private Injector injector; | |
private BuilderFactory builderFactory; | |
private Callback<Class<?>, Object> coreGuiceControllerFactory; | |
private Map<Object, Stage> stageCache = new LinkedHashMap<>(); | |
private Map<Object, Callback<Class<?>, Object>> gcfCache = new LinkedHashMap<>(); | |
@FXML | |
public void initialize() { | |
if( logger.isDebugEnabled() ) { | |
logger.debug("[INIT]"); | |
} | |
CoreModule module = new CoreModule(); | |
injector = Guice.createInjector(module); | |
builderFactory = new JavaFXBuilderFactory(); | |
coreGuiceControllerFactory = clazz -> injector.getInstance(clazz); | |
} | |
public void initializeSubApps() { | |
if( logger.isDebugEnabled() ) { | |
logger.debug("[INIT SUBAPPS]"); | |
} | |
/** | |
* Versione con caricamento da path | |
*/ | |
// where to find plugins | |
File dir = new File("plugins\\"); | |
System.out.println("Base path " + dir.getAbsolutePath()); | |
// regex filter | |
File[] files = dir.listFiles(new FilenameFilter() { | |
@Override | |
public boolean accept(File dir, String name) { | |
return name.matches("dynamicPlugin[^_]*.jar"); | |
} | |
}); | |
// creo la lista di urls | |
List<URL> urlsList = new ArrayList<URL>(); | |
for (File file : files) { | |
// I get only the plugin path | |
try { | |
urlsList.add(file.toURI().toURL()); | |
System.out.println("Plugin trovato: " + file.toURI().toURL()); | |
} catch (MalformedURLException e) { | |
// TODO Auto-generated catch block | |
e.printStackTrace(); | |
} | |
} | |
// Reflections reflections = new Reflections(config); | |
URL[] urlsArray = urlsList.toArray(new URL[urlsList.size()]); | |
// see: | |
// http://stackoverflow.com/questions/16824745/reflections-could-not-get-class-type | |
URLClassLoader urlcl = new URLClassLoader(urlsArray); | |
// Inizializzo la reflection passando il classLoader appena creato | |
Reflections reflections = new Reflections( | |
new ConfigurationBuilder().setUrls(ClasspathHelper.forClassLoader(urlcl)).addClassLoader(urlcl)); | |
//Reflections reflections = new Reflections(DEFAULT_PACKAGE_TO_SCAN); | |
Set<Class<?>> subapps = reflections.getTypesAnnotatedWith(SubApp.class); | |
subapps.stream().sorted(Comparator.comparing(Class::getSimpleName)).forEach(sa -> { | |
SubApp saAnnotation = sa.getAnnotation(SubApp.class); | |
Button btn = new Button(saAnnotation.buttonTitle()); | |
btn.setId( saAnnotation.buttonId() ); | |
btn.setUserData(sa); // holds the metadata | |
btn.setOnAction(evt -> startScreen(evt)); | |
vbox.getChildren().add(btn); | |
}); | |
} | |
public void startScreen(ActionEvent evt) { | |
if( logger.isDebugEnabled() ) { | |
logger.debug("Starting a screen {}", ((Button)evt.getSource()).getId()); | |
} | |
Class<?> sa = (Class<?>)((Button)evt.getSource()).getUserData(); | |
SubApp saAnnotation = sa.getAnnotation(SubApp.class); | |
try { | |
Callback<Class<?>, Object> gcf = gcfCache.get( (Button)evt.getSource() ); | |
if( gcf == null ) { | |
AbstractModule m = (AbstractModule)sa.newInstance(); | |
Injector inj = injector.createChildInjector( m ); | |
gcf = clazz -> inj.getInstance(clazz); | |
gcfCache.put( evt.getSource(), gcf ); | |
} | |
Stage stageToShow = stageCache.get(evt.getSource()); | |
if (stageToShow == null) { | |
Stage stage = createStage( saAnnotation.fxmlFile(), gcf, saAnnotation.stageTitle(), sa ); | |
stageToShow = stage; | |
stageCache.put(evt.getSource(), stageToShow); | |
} | |
stageToShow.show(); | |
} catch (Exception exc) { | |
logger.error("cannot start a screen", exc); | |
} | |
} | |
private Stage createStage( String fxmlFile, Callback<Class<?>, Object> gcf, String stageTitle, Class<?> sa ) throws IOException { | |
if( logger.isDebugEnabled() ) { | |
logger.debug("[CREATE STAGE] fxmlFile=" + fxmlFile + ", using loader from class=" + sa.getName()); | |
} | |
String path = StringUtils.replace(DEFAULT_PACKAGE_TO_SCAN, ".", "/"); | |
FXMLLoader aScreenLoader = new FXMLLoader( | |
sa.getResource( "/" + path + "/" + fxmlFile ), | |
null, | |
builderFactory, | |
gcf); | |
Parent someScreen = (Parent) aScreenLoader.load(); | |
Stage stage = new Stage(); | |
stage.setTitle( stageTitle ); | |
Scene someScene = new Scene(someScreen); | |
stage.setScene(someScene); | |
return stage; | |
} | |
@FXML | |
public void refreshScreens() { | |
gcfCache.clear(); | |
stageCache.clear(); | |
} | |
@FXML | |
public void exitApplication() { | |
if( logger.isInfoEnabled() ) { | |
logger.info("Exiting application"); | |
} | |
Platform.exit(); | |
} | |
} |
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