Add module-info support via multi-version jar (#2381)

ebean-core/src/main/java/io/ebeaninternal/server/core/ClassPathScanners.java

@@ -5,7 +5,9 @@ import io.avaje.classpath.scanner.ClassPathScannerFactory;
 import io.ebean.config.DatabaseConfig;
 
 import java.util.ArrayList;
+import java.util.Iterator;
 import java.util.List;
+import java.util.ServiceLoader;
 
 /**
  * Utility to finds and return the list of ClassPathScanner services.
@@ -17,7 +19,7 @@ public class ClassPathScanners {
    */
   public static List<ClassPathScanner> find(DatabaseConfig config) {
     List<ClassPathScanner> scanners = new ArrayList<>();
-    for (ClassPathScannerFactory factory : config.serviceLoad(ClassPathScannerFactory.class)) {
+    for (ClassPathScannerFactory factory : ServiceLoader.load(ClassPathScannerFactory.class)) {
       scanners.add(factory.createScanner(config.getClassLoadConfig().getClassLoader()));
     }
     return scanners;

ebean-core/src/main/java/io/ebeaninternal/server/core/DefaultServer.java

@@ -380,7 +380,7 @@ public final class DefaultServer implements SpiServer, SpiEbeanServer {
    */
   public void start() {
     if (config.isRunMigration() && TenantMode.DB != config.getTenantMode()) {
-      final AutoMigrationRunner migrationRunner = config.service(AutoMigrationRunner.class);
+      final AutoMigrationRunner migrationRunner = ServiceUtil.service(AutoMigrationRunner.class);
       if (migrationRunner == null) {
         throw new IllegalStateException("No AutoMigrationRunner found. Probably ebean-migration is not in the classpath?");
       }

ebean-core/src/main/java/io/ebeaninternal/server/core/InitDataSource.java

@@ -124,7 +124,7 @@ final class InitDataSource {
    * Attach DataSourceAlert via service loader if present.
    */
   private void attachAlert(DataSourceConfig dsConfig) {
-    DataSourceAlertFactory alertFactory = config.service(DataSourceAlertFactory.class);
+    DataSourceAlertFactory alertFactory = ServiceUtil.service(DataSourceAlertFactory.class);
     if (alertFactory != null) {
       dsConfig.setAlert(alertFactory.createAlert());
     }

ebean-core/src/main/java/io/ebeaninternal/server/core/InternalConfiguration.java

@@ -156,7 +156,7 @@ public final class InternalConfiguration {
     this.clockService = new ClockService(config.getClock());
     this.tableModState = new TableModState();
     this.logManager = initLogManager();
-    this.docStoreFactory = initDocStoreFactory(config.service(DocStoreFactory.class));
+    this.docStoreFactory = initDocStoreFactory(service(DocStoreFactory.class));
     this.jsonFactory = config.getJsonFactory();
     this.clusterManager = clusterManager;
     this.backgroundExecutor = backgroundExecutor;
@@ -191,8 +191,12 @@ public final class InternalConfiguration {
     return new InternalConfigXmlMap(xmEbeans, config.getClassLoadConfig().getClassLoader());
   }
 
+  private <S> S service(Class<S> cls) {
+    return ServiceUtil.service(cls);
+  }
+
   private List<XmapEbean> readExternalMapping() {
-    final XmapService xmapService = config.service(XmapService.class);
+    final XmapService xmapService = service(XmapService.class);
     if (xmapService == null) {
       return Collections.emptyList();
     }
@@ -201,7 +205,7 @@ public final class InternalConfiguration {
 
   private SpiLogManager initLogManager() {
     // allow plugin - i.e. capture executed SQL for testing/asserts
-    SpiLoggerFactory loggerFactory = config.service(SpiLoggerFactory.class);
+    SpiLoggerFactory loggerFactory = service(SpiLoggerFactory.class);
     if (loggerFactory == null) {
       loggerFactory = new DLoggerFactory();
     }
@@ -336,7 +340,7 @@ public final class InternalConfiguration {
   }
 
   AutoTuneService createAutoTuneService(SpiEbeanServer server) {
-    final AutoTuneServiceProvider provider = config.service(AutoTuneServiceProvider.class);
+    final AutoTuneServiceProvider provider = service(AutoTuneServiceProvider.class);
     return provider == null ? new NoAutoTuneService() : provider.create(server, config);
   }
 
@@ -445,7 +449,7 @@ public final class InternalConfiguration {
     if (!profilingConfig.isEnabled()) {
       return new NoopProfileHandler();
     }
-    SpiProfileHandler handler = config.service(SpiProfileHandler.class);
+    SpiProfileHandler handler = service(SpiProfileHandler.class);
     if (handler == null) {
       handler = new DefaultProfileHandler(profilingConfig);
     }
@@ -533,7 +537,7 @@ public final class InternalConfiguration {
     }
     SlowQueryListener listener = config.getSlowQueryListener();
     if (listener == null) {
-      listener = config.service(SlowQueryListener.class);
+      listener = service(SlowQueryListener.class);
       if (listener == null) {
         listener = new DefaultSlowQueryListener();
       }
@@ -589,7 +593,7 @@ public final class InternalConfiguration {
     }
 
     ServerCacheFactory factory = serverCachePlugin.create(config, backgroundExecutor);
-    ServerCacheNotifyPlugin notifyPlugin = config.service(ServerCacheNotifyPlugin.class);
+    ServerCacheNotifyPlugin notifyPlugin = service(ServerCacheNotifyPlugin.class);
     if (notifyPlugin != null) {
       // plugin supplied so use that to send notifications
       cacheNotify = notifyPlugin.create(config);
@@ -644,7 +648,7 @@ public final class InternalConfiguration {
    * Return the DDL generator.
    */
   public SpiDdlGenerator initDdlGenerator(SpiEbeanServer server) {
-    final SpiDdlGeneratorProvider service = config.service(SpiDdlGeneratorProvider.class);
+    final SpiDdlGeneratorProvider service = service(SpiDdlGeneratorProvider.class);
     return service == null ? new NoopDdl() : service.generator(server);
   }
 

ebean-core/src/main/java/io/ebeaninternal/server/core/ServiceUtil.java

@@ -0,0 +1,13 @@
+package io.ebeaninternal.server.core;
+
+import java.util.Iterator;
+import java.util.ServiceLoader;
+
+public final class ServiceUtil {
+
+  public static <S> S service(Class<S> cls) {
+    ServiceLoader<S> load = ServiceLoader.load(cls);
+    Iterator<S> serviceInstances = load.iterator();
+    return serviceInstances.hasNext() ? serviceInstances.next() : null;
+  }
+}

ebean-core/src/main/java/io/ebeaninternal/server/type/DefaultTypeManager.java

@@ -17,6 +17,7 @@ import io.ebean.types.Inet;
 import io.ebean.util.AnnotationUtil;
 import io.ebeaninternal.api.DbOffline;
 import io.ebeaninternal.api.GeoTypeProvider;
+import io.ebeaninternal.server.core.ServiceUtil;
 import io.ebeaninternal.server.core.bootup.BootupClasses;
 import io.ebeaninternal.server.deploy.meta.DeployBeanProperty;
 import org.joda.time.DateTime;
@@ -156,7 +157,7 @@ public final class DefaultTypeManager implements TypeManager {
   }
 
   private void loadGeoTypeBinder(DatabaseConfig config) {
-    final GeoTypeProvider provider = config.service(GeoTypeProvider.class);
+    final GeoTypeProvider provider = ServiceUtil.service(GeoTypeProvider.class);
     if (provider != null) {
       geoTypeBinder = provider.createBinder(config);
     }