#1125 - ENH: Add a SpiContainerBootup API ... to enable automatic startup of docker containers (for testing usually)

src/main/java/io/ebeaninternal/api/SpiContainerBootup.java

@@ -0,0 +1,18 @@
+package io.ebeaninternal.api;
+
+/**
+ * Plugin API available to invoke something prior to container bootup.
+ * <p>
+ * The initial intent is to provide a hook for 'docker-run' such that we can automatically ensure
+ * we have a test DB docker container running and setup ready to go.
+ * </p>
+ */
+public interface SpiContainerBootup {
+
+  /**
+   * Run something at bootup prior to the container starting.
+   *
+   * For example, start DB docker container(s).
+   */
+  void bootup();
+}

src/main/java/io/ebeaninternal/server/core/DefaultContainer.java

@@ -14,6 +14,7 @@ import io.ebean.config.dbplatform.DatabasePlatform;
 import io.ebean.config.dbplatform.h2.H2Platform;
 import io.ebean.dbmigration.DbOffline;
 import io.ebeaninternal.api.SpiBackgroundExecutor;
+import io.ebeaninternal.api.SpiContainerBootup;
 import io.ebeaninternal.api.SpiEbeanServer;
 import io.ebeaninternal.server.cache.DefaultServerCacheManager;
 import io.ebeaninternal.server.cache.DefaultServerCachePlugin;
@@ -51,6 +52,8 @@ public class DefaultContainer implements SpiContainer {
 
   public DefaultContainer(ContainerConfig containerConfig) {
 
+    invokeBootupPlugin();
+
     this.clusterManager = new ClusterManager(containerConfig);
     this.jndiDataSourceFactory = new JndiDataSourceLookup();
 
@@ -59,6 +62,13 @@ public class DefaultContainer implements SpiContainer {
     ShutdownManager.registerContainer(this);
   }
 
+  private void invokeBootupPlugin() {
+    Iterator<SpiContainerBootup> it = ServiceLoader.load(SpiContainerBootup.class).iterator();
+    while (it.hasNext()) {
+      it.next().bootup();
+    }
+  }
+
   @Override
   public void shutdown() {
     clusterManager.shutdown();