Triangle amoureux déroutant entre JavaFx, Maven et JPA
stevyal
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KX Messages postés 16761 Date d'inscription Statut Modérateur Dernière intervention -
KX Messages postés 16761 Date d'inscription Statut Modérateur Dernière intervention -
Bonjour à tous les compaires. j'ai décidé de laisser tomber swing pour JAVAFX du moins pour ce qui est des interfaces graphiques.
Pour ce faire, j'ai alors adopté la même architecture à avoir pour une application multi modules avec l'aide de maven:
- le module des classes métiers que j'appelle model
- le module DAO (data access object) qui gère les interactions avec la base de données
- le module service qui ecapsules les services de l'application
- le module IHM pour les interfaces graphiques totalement conçu en javaFX
* les dépendances sont les suiventes:
le module DAO est dépendant du module model
le module service est à la fois dépendant du modèle et de la dao
le module IHM dépend du modèle, de la DAO et du service.
La persistance des données est faite avec JPA implémenté par TopLinck et la base de donnée est H2
Lorsque j'exécute l'application j'ai une tonne de message erreur.
pour mieux illustrer mon problème voici le code qui pour des besoins de simplicité est allégé.
// le modèle
@Entity
public class MemoDomain{
@Version
private Long version;
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "entity_id", nullable = false, updatable = false, unique = true)
private Long id;
@Column(name = "entity_name", length = 100, nullable = false, updatable = true)
private String entityName;
@Column(columnDefinition = "mediumtext", nullable = true, updatable = true)
private String description;
@Column(columnDefinition = "date", name = "creation_date", nullable = false, updatable = false)
@Convert(converter = DateAttributeConverter.class)
private LocalDate creationDate;
public MemoDomain(String entityName, String description){
this.entityName = entityName;
this.description = description;
}
//getters, setters equals hashCode and toString methods
}
// la dao
public class H2DBConnectionProvider implements DatabaseConnectionProvider {
private static H2DBConnectionProvider instance;
private static final Object VERROU = new Object();
private static EntityManagerFactory emf;
private EntityManager memoryHelpEntitymanager;
public H2DBConnectionProvider() {
initEmf();
}
private void initEmf() {
emf = Persistence.createEntityManagerFactory(JpaConfig.PERSISTENCE_UNIT_NAME);
}
private void initEmf(String persistenceUnitName) {
emf = Persistence.createEntityManagerFactory(persistenceUnitName);
}
public static H2DBConnectionProvider getInstance() {
if (instance == null) {
synchronized (VERROU) {
instance = new H2DBConnectionProvider();
}
}
return instance;
}
@Override
public EntityManager provideEntityManager() throws NoConnectionException {
if (Objects.isNull(memoryHelpEntitymanager)) {
throw new NoConnectionException("There is no database connection!");
} else {
return memoryHelpEntitymanager;
}
}
@Override
public boolean getConnectedToDb() {
createEntityManager();
return !Objects.isNull(memoryHelpEntitymanager);
}
@Override
public boolean getConnectedToDb(String puName) {
createEntityManager(puName);
return !Objects.isNull(memoryHelpEntitymanager);
}
private void createEntityManager(String puName) {
try {
initEmf(puName);
if (emf != null) {
memoryHelpEntitymanager = emf.createEntityManager();
}
} catch (Exception e) {
e.printStackTrace();
}
}
private void createEntityManager() {
try {
initEmf();
if (emf != null) {
memoryHelpEntitymanager = emf.createEntityManager();
}
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
public boolean isConnectedToDb(){
return !Objects.isNull(memoryHelpEntitymanager);
}
}
public interface Dao<T extends Object, ID extends Serializable> {
public T createEntity(T newEntity) throws Exception, DuplicateEntryException;
public T readEntity(ID entityId) throws SQLException;
public T updateEntity(T entity) throws Exception;
public T deleteEntity(T entity) throws Exception;
public boolean entityExist(String entityName) throws SQLException;
public List<T> readAll() throws SQLException;
}
public interface GenericEntityDao<T extends GenericEntity, ID extends Serializable> extends Dao<T, ID> {
public void setDatabaseConnectionProvider(DatabaseConnectionProvider connectionProvider);
}
//implementation
public abstract class GenericEntityDaoImpl<T extends GenericEntity, ID extends Serializable> implements GenericEntityDao<T, ID> {
protected Class<T> entityClass;
protected DatabaseConnectionProvider databaseConnectionProvider;
protected EntityManager entityManager;
/**
*
* @param entityClass
* @param databaseConnectionProvider
*/
public GenericEntityDaoImpl(Class<T> entityClass, DatabaseConnectionProvider databaseConnectionProvider) {
super();
this.entityClass = entityClass;
this.databaseConnectionProvider = databaseConnectionProvider;
}
@Override
public T createEntity(T newEntity) throws Exception, DuplicateEntryException {
entityManager = databaseConnectionProvider.provideEntityManager();
entityManager.getTransaction().begin();
try {
entityManager.persist(newEntity);
entityManager.flush();
entityManager.getTransaction().commit();
entityManager.refresh(newEntity);
} catch (Exception e) {
entityManager.getTransaction().rollback();
Logger.getLogger(GenericEntityDaoImpl.class.getName()).log(Level.SEVERE, null, e);
} finally {
entityManager.close();
}
return newEntity;
}
@Override
public T readEntity(ID entityId) throws SQLException {
T entity = null;
entityManager = (EntityManager) databaseConnectionProvider.provideEntityManager();
try {
entity = entityManager.find(entityClass, entityId);
} catch (Exception ex) {
Logger.getLogger(GenericEntityDaoImpl.class.getName()).log(Level.SEVERE, null, ex);
} finally {
entityManager.close();
}
return entity;
}
@Override
public T updateEntity(T entity) throws Exception {
T updatedEntity = null;
entityManager = (EntityManager) databaseConnectionProvider.provideEntityManager();
try {
entityManager.getTransaction().begin();
updatedEntity = entityManager.merge(entity);
entityManager.flush();
entityManager.getTransaction().commit();
} catch (Exception e) {
entityManager.getTransaction().rollback();
Logger.getLogger(GenericEntityDaoImpl.class.getName()).log(Level.SEVERE, null, e);
} finally {
entityManager.close();
}
return updatedEntity;
}
@Override
public T deleteEntity(T entity) throws Exception {
entityManager = (EntityManager) databaseConnectionProvider.provideEntityManager();
try {
entityManager.getTransaction().begin();
entityManager.merge(entity);
entityManager.remove(entity);
entityManager.flush();
entityManager.getTransaction().commit();
} catch (Exception e) {
entityManager.getTransaction().rollback();
Logger.getLogger(GenericEntityDaoImpl.class.getName()).log(Level.SEVERE, null, e);
} finally {
entityManager.close();
}
return entity;
}
@Override
public boolean entityExist(String entityName) throws SQLException {
boolean exists = false;
try {
entityManager = databaseConnectionProvider.provideEntityManager();
Query query = entityManager.createNamedQuery("findByName");
query.setParameter("entityName", entityName);
List<T> resultList = query.getResultList();
exists = !resultList.isEmpty();
} catch (NoConnectionException e) {
Logger.getLogger(GenericEntityDaoImpl.class.getName()).log(Level.SEVERE, null, e);
}
return exists;
}
@Override
public List<T> readAll() {
entityManager = (EntityManager) databaseConnectionProvider.provideEntityManager();
TypedQuery<? extends T> query;
query = entityManager.createQuery("SELECT entity FROM GenericEntity entity ORDER BY entity.entityName ASC", entityClass);
List<T> entityList = (List<T>) query.getResultList();
entityList.sort(Comparator.naturalOrder());
return entityList;
}
@Override
public void setDatabaseConnectionProvider(DatabaseConnectionProvider connectionProvider){
this.databaseConnectionProvider = connectionProvider;
}
}
public interface DomainDao<T extends MemoDomain> extends GenericEntityDao<T, Long> {
}
public class DomainDaoImpl<T extends MemoDomain> extends MemoryHelpHeaderDaoImpl<T> implements DomainDao<T> {
/**
* Default Constructor
*
* @param entityClass
* @param connectionProvider
*/
public DomainDaoImpl(Class<T> entityClass, DatabaseConnectionProvider connectionProvider) {
super(entityClass, connectionProvider);
}
}
/* le controlleur de l'ihm */
public class MemoryHelp extends Application {
private Stage mainStage;
private DatabaseConnectionProvider connectionProvider;
private MemoryHelpDataModel dataModel;
@Override
public void start(Stage primaryStage) throws IOException {
this.mainStage = primaryStage;
Rectangle2D screenSize = Screen.getPrimary().getVisualBounds();
mainStage.setMaxWidth(screenSize.getWidth());
mainStage.setMaxHeight(screenSize.getHeight());
mainStage.setMinWidth(screenSize.getWidth());
mainStage.setMinHeight(screenSize.getHeight());
mainStage.setTitle("Application");
Parent rootNode = loadFXML("MainView");
mainStage.setScene(new Scene(rootNode));
mainStage.sizeToScene();
mainStage.getIcons().add(new Image(MemoryHelp.class.getResourceAsStream("/imgs/icon.png")));
mainStage.setOnCloseRequest(event -> {
event.consume();
Optional<ButtonType> option = MHDialog.getConfirmationBox("Souhaitez-vous quitter l'application?");
if (option.get() == ButtonType.YES) {
mainStage.hide();
}
});
mainStage.show();
}
private Parent loadFXML(String fxml) throws IOException {
URL fxmlLocation = MemoryHelp.class.getResource("/fxml/" + fxml + ".fxml");
ResourceBundle resources = ResourceBundle.getBundle("i18n.application");
FXMLLoader fxmlLoader = new FXMLLoader();
fxmlLoader.setLocation(fxmlLocation);
fxmlLoader.setResources(resources);
Parent root = fxmlLoader.load();
MainController mainController = (MainController) fxmlLoader.getController();
if(dataModel == null){
try {
dataModel = new MemoryHelpDataModel(null);
} catch (SQLException ex) {
Logger.getLogger(MemoryHelp.class.getName()).log(Level.SEVERE, null, ex);
}
}
return root;
}
public static void main(String[] args) {
launch();
}
@Override
public void init()throws NoSuchMethodException {
initDataModel();
}
public Stage getMainStage(){
return this.mainStage;
}
private void initDataModel(){
connectionProvider = new H2DBConnectionProvider();
connectionProvider.getConnectedToDb();
try {
this.dataModel = new DataModel(connectionProvider);
}catch(SQLException e){
Logger.getLogger(Application.class.getName()).log(Level.SEVERE, null, e);
}
}
public MemoryHelpDataModel getDataModel() {
if(dataModel == null){
initDataModel();
}
return dataModel;
}
}
//
Lorsque je teste l'accès à la bae de données dans un module autre que celui réservé à javaFx tout va bien
le message erreur est le suivant:
Exception in Application init method java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at javafx.graphics@20/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:464) at javafx.graphics@20/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:363) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1082) Caused by: java.lang.RuntimeException: Exception in Application init method at javafx.graphics@20/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:888) at javafx.graphics@20/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:195) at java.base/java.lang.Thread.run(Thread.java:833) Caused by: java.lang.NoClassDefFoundError: java/lang/instrument/ClassFileTransformer at org.eclipse.persistence.jpa@2.7.10/org.eclipse.persistence.jpa.PersistenceProvider.getInitializer(PersistenceProvider.java:277) at org.eclipse.persistence.jpa@2.7.10/org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactory(PersistenceProvider.java:190) at java.persistence@2.2/javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:79) at java.persistence@2.2/javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:54) at Dao@1.0-SNAPSHOT/com.lifesoft.memoryhelp.dao.database.H2DBConnectionProvider.initEmf(H2DBConnectionProvider.java:37) at Dao@1.0-SNAPSHOT/com.lifesoft.memoryhelp.dao.database.H2DBConnectionProvider.createEntityManager(H2DBConnectionProvider.java:87) at Dao@1.0-SNAPSHOT/com.lifesoft.memoryhelp.dao.database.H2DBConnectionProvider.getConnectedToDb(H2DBConnectionProvider.java:65) at com.lifesoft.memoryhelp.gui/com.lifesoft.memoryhelp.gui.application.MyApplication.initDataModel(MyApplication.java:154) at com.lifesoft.memoryhelp.gui/com.lifesoft.memoryhelp.gui.application.MyApplication.init(MyApplication.java:111) at javafx.graphics@20/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:817) ... 2 more Caused by: java.lang.ClassNotFoundException: java.lang.instrument.ClassFileTransformer at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520) ... 12 more Exception running application com.lifesoft.memoryhelp.gui.application.MyApplication Command execution failed. org.apache.commons.exec.ExecuteException: Process exited with an error: 1 (Exit value: 1) at org.apache.commons.exec.DefaultExecutor.executeInternal (DefaultExecutor.java:404) at org.apache.commons.exec.DefaultExecutor.execute (DefaultExecutor.java:166) at org.openjfx.JavaFXBaseMojo.executeCommandLine (JavaFXBaseMojo.java:553) at org.openjfx.JavaFXBaseMojo.executeCommandLine (JavaFXBaseMojo.java:420) at org.openjfx.JavaFXRunMojo.execute (JavaFXRunMojo.java:105) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137) at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:370) at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:351) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:215) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:171) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:163) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:298) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192) at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105) at org.apache.maven.cli.MavenCli.execute (MavenCli.java:960) at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:293) at org.apache.maven.cli.MavenCli.main (MavenCli.java:196) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77) at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke (Method.java:568) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282) at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406) at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347) org.apache.commons.exec.ExecuteException: Process exited with an error: 1 (Exit value: 1) at org.apache.commons.exec.DefaultExecutor.executeInternal(DefaultExecutor.java:404) at org.apache.commons.exec.DefaultExecutor.execute(DefaultExecutor.java:166) at org.openjfx.JavaFXBaseMojo.executeCommandLine(JavaFXBaseMojo.java:553) at org.openjfx.JavaFXBaseMojo.executeCommandLine(JavaFXBaseMojo.java:420) at org.openjfx.JavaFXRunMojo.execute(JavaFXRunMojo.java:105) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:137) at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2(MojoExecutor.java:370) at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute(MojoExecutor.java:351) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:215) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:171) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:163) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:117) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:81) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:56) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:298) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:192) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:105) at org.apache.maven.cli.MavenCli.execute(MavenCli.java:960) at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:293) at org.apache.maven.cli.MavenCli.main(MavenCli.java:196) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:282) at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:225) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:406) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:347)
Windows / Chrome 113.0.0.0
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1 réponse
Bonjour,
L'exception peut être lié à un oubli de module, ClassFileTransformer est dans le module java.instrument, à configurer dans le fichier module-info.java
Remarque : sur l'architecture de l'application cela semble une mauvaise idée d'avoir le client JavaFX qui appelle directement la base de données, cela signifie que tous les clients auront les user/password de la base de données configurés dans leur logiciel, en terme de sécurité il vaudrait mieux passer par un serveur intermédiaire qui sera le seul à accéder à la base de données.