#394 - ENH: Add plugin API SpiServer - add shutdown() method to SpiServerPlugin.

src/main/java/com/avaje/ebean/plugin/SpiServerPlugin.java

@@ -14,4 +14,12 @@ public interface SpiServerPlugin {
    * Called just before the server starts indicating if it is coming up in online mode.
    */
   void online(boolean online);
+
+  /**
+   * Called when the server is shutting down.
+   * <p>
+   * Plugins should shutdown any resources they are using cleanly.
+   * </p>
+   */
+  void shutdown();
 }

src/main/java/com/avaje/ebeaninternal/server/core/DefaultServer.java

@@ -438,6 +438,7 @@ public final class DefaultServer implements SpiServer, SpiEbeanServer {
       // Already shutdown
       return;
     }
+    shutdownPlugins();
     try {
       if (mbeanServer != null) {
         mbeanServer.unregisterMBean(new ObjectName(mbeanName + ",key=AutoFetch"));
@@ -454,7 +455,18 @@ public final class DefaultServer implements SpiServer, SpiEbeanServer {
     transactionManager.shutdown(shutdownDataSource, deregisterDriver);
     shutdown = true;
   }
-  
+
+  private void shutdownPlugins() {
+
+    for (SpiServerPlugin plugin : serverPlugins) {
+      try {
+        plugin.shutdown();
+      } catch (Throwable e) {
+        logger.error("Error when shutting down plugin", e);
+      }
+    }
+  }
+
   /**
    * Return the server name.
    */