Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id 1BF31200C53 for ; Tue, 11 Apr 2017 14:11:06 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id 1A7BD160B89; Tue, 11 Apr 2017 12:11:06 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id 15AE1160B9E for ; Tue, 11 Apr 2017 14:11:04 +0200 (CEST) Received: (qmail 29090 invoked by uid 500); 11 Apr 2017 12:11:02 -0000 Mailing-List: contact commits-help@polygene.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@polygene.apache.org Delivered-To: mailing list commits@polygene.apache.org Received: (qmail 29014 invoked by uid 99); 11 Apr 2017 12:11:02 -0000 Received: from git1-us-west.apache.org (HELO git1-us-west.apache.org) (140.211.11.23) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 11 Apr 2017 12:11:02 +0000 Received: by git1-us-west.apache.org (ASF Mail Server at git1-us-west.apache.org, from userid 33) id 57823E0285; Tue, 11 Apr 2017 12:11:02 +0000 (UTC) Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: niclas@apache.org To: commits@polygene.apache.org Date: Tue, 11 Apr 2017 12:11:05 -0000 Message-Id: <80ab0fdece8843aab9061730d8a0ec9f@git.apache.org> In-Reply-To: <6b8c3b352b7844e2bd7b19ed3124ff70@git.apache.org> References: <6b8c3b352b7844e2bd7b19ed3124ff70@git.apache.org> X-Mailer: ASF-Git Admin Mailer Subject: [4/5] polygene-java git commit: POLYGENE-45 : The plugin proposal that this test is trying to verify disappeared years ago, and we might re-visit "plugin patterns" later. archived-at: Tue, 11 Apr 2017 12:11:06 -0000 POLYGENE-45 : The plugin proposal that this test is trying to verify disappeared years ago, and we might re-visit "plugin patterns" later. Project: http://git-wip-us.apache.org/repos/asf/polygene-java/repo Commit: http://git-wip-us.apache.org/repos/asf/polygene-java/commit/d7fc3065 Tree: http://git-wip-us.apache.org/repos/asf/polygene-java/tree/d7fc3065 Diff: http://git-wip-us.apache.org/repos/asf/polygene-java/diff/d7fc3065 Branch: refs/heads/develop Commit: d7fc306584c1e42311c6ff09f6174942e89afb39 Parents: a6fb0cd Author: niclas Authored: Tue Apr 11 20:04:14 2017 +0800 Committer: niclas Committed: Tue Apr 11 20:04:14 2017 +0800 ---------------------------------------------------------------------- .../apache/polygene/api/common/PluginTest.java | 368 ------------------- 1 file changed, 368 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/polygene-java/blob/d7fc3065/core/runtime/src/test/java/org/apache/polygene/api/common/PluginTest.java ---------------------------------------------------------------------- diff --git a/core/runtime/src/test/java/org/apache/polygene/api/common/PluginTest.java b/core/runtime/src/test/java/org/apache/polygene/api/common/PluginTest.java deleted file mode 100644 index dcab32f..0000000 --- a/core/runtime/src/test/java/org/apache/polygene/api/common/PluginTest.java +++ /dev/null @@ -1,368 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * - */ - -package org.apache.polygene.api.common; - -import java.lang.reflect.Proxy; -import java.time.Instant; -import java.util.Collections; -import java.util.List; -import org.apache.polygene.api.injection.scope.Service; -import org.apache.polygene.api.injection.scope.Structure; -import org.apache.polygene.api.mixin.Mixins; -import org.apache.polygene.api.service.ImportedServiceDescriptor; -import org.apache.polygene.api.service.ServiceActivation; -import org.apache.polygene.api.service.ServiceComposite; -import org.apache.polygene.api.service.ServiceFinder; -import org.apache.polygene.api.service.ServiceImporter; -import org.apache.polygene.api.service.ServiceImporterException; -import org.apache.polygene.api.service.ServiceReference; -import org.apache.polygene.api.structure.Application; -import org.apache.polygene.api.time.SystemTime; -import org.apache.polygene.bootstrap.ApplicationAssembler; -import org.apache.polygene.bootstrap.ApplicationAssembly; -import org.apache.polygene.bootstrap.ApplicationAssemblyFactory; -import org.apache.polygene.bootstrap.Assembler; -import org.apache.polygene.bootstrap.AssemblyException; -import org.apache.polygene.bootstrap.Energy4Java; -import org.apache.polygene.bootstrap.LayerAssembly; -import org.apache.polygene.bootstrap.LayerName; -import org.apache.polygene.bootstrap.ModuleAssembly; -import org.apache.polygene.bootstrap.ModuleName; -import org.junit.Ignore; -import org.junit.Test; - -/** - * Sample of how a plugin architecture could work. - * The plugins can use services in the main application and the main - * application can use services from the plugins - */ -public class PluginTest -{ - @Test - @Ignore( "Must fix the TODOs below. This example relied on ability to set Service MetaInfo at runtime, it seems it's not possible anymore." ) - public void testPlugins() - throws Exception - { - Energy4Java runtime = new Energy4Java(); - Application app = runtime.newApplication( new MainApplicationAssembler() ); - app.activate(); - } - - // Main application - - class MainApplicationAssembler - implements ApplicationAssembler - { - public ApplicationAssembly assemble( ApplicationAssemblyFactory applicationFactory ) - throws AssemblyException - { - return applicationFactory.newApplicationAssembly( new Assembler[][][] - { - { - { - new PluginAssembler(), - new UIAssembler(), - } - }, - { - { - new ServiceAssembler() - } - } - } ); - } - } - - // The UI uses the plugins - - class UIAssembler - implements Assembler - { - public void assemble( ModuleAssembly module ) - throws AssemblyException - { - module.services( PluginTesterService.class ).instantiateOnStartup(); - module.importedServices( Plugin.class ) - .importedBy( ServiceFinderImporter.class ) - .visibleIn( Visibility.layer ); - } - } - - // Get a reference to a plugin and use it - - @Mixins( PluginTesterService.PluginTesterMixin.class ) - interface PluginTesterService - extends ServiceActivation, ServiceComposite - { - class PluginTesterMixin - implements ServiceActivation - { - @Service - Plugin plugin; - - @Service - PluginsService plugins; - - public void activateService() - throws Exception - { - // Use plugin - System.out.println( plugin.say( "Hello", "World" ) ); - - // Restart plugin - plugins.passivateService(); - - // Plugin is now unavailable - try - { - System.out.println( plugin.say( "Hello", "World" ) ); - } - catch( ServiceImporterException e ) - { - // Ignore - } - - plugins.activateService(); - - // Use plugin - System.out.println( plugin.say( "Hello", "World" ) ); - } - - public void passivateService() - throws Exception - { - } - } - } - - // Assemble the base service that the plugin can use - - class ServiceAssembler - implements Assembler - { - public void assemble( ModuleAssembly module ) - throws AssemblyException - { - module.services( HelloWorldService.class ).visibleIn( Visibility.application ); - } - } - - // Plugins can access service instances with this interface - - interface HelloWorld - { - String say( String phrase, String name ); - } - - // Implementation of service that the plugin can use - - @Mixins( HelloWorldService.HelloWorldMixin.class ) - interface HelloWorldService - extends HelloWorld, ServiceComposite - { - class HelloWorldMixin - implements HelloWorld - { - public String say( String phrase, String name ) - { - return phrase + " " + name; - } - } - } - - // Assemble the plugins module - - class PluginAssembler - implements Assembler - { - public void assemble( ModuleAssembly module ) - throws AssemblyException - { - module.services( PluginsService.class ).instantiateOnStartup(); - } - } - -// Plugin service -// This assembles and activates a separate application for the plugins -// The plugins can look up services in the host application and the - - // plugins can be looked up by the host application - - @Mixins( PluginsService.PluginsMixin.class ) - interface PluginsService - extends ServiceComposite, ServiceActivation - { - class PluginsMixin - implements ServiceActivation - { - @Structure - ServiceFinder finder; - @Service - ServiceReference plugin; - private Application app; - - public void activateService() - throws Exception - { - Energy4Java runtime = new Energy4Java(); - app = runtime.newApplication( new PluginApplicationAssembler( finder ) ); - - app.activate(); - ServiceFinder pluginFinder = app.findModule( "Plugin layer", "Plugin module" ); - - // TODO: Niclas wrote: No clue how all this Test is supposed to work, and can't figure out to create a workaround for this. -// finder.findService(Plugin.class).metaInfo().add(ServiceFinder.class, pluginFinder); - } - - public void passivateService() - throws Exception - { - // TODO: Niclas wrote: No clue how all this Test is supposed to work, and can't figure out to create a workaround for this. -// plugin.metaInfo().remove(ServiceFinder.class); - - app.passivate(); - } - } - } - - // Assemble the plugin application - - public static class PluginApplicationAssembler - implements ApplicationAssembler - { - private ServiceFinder finder; - - public PluginApplicationAssembler( ServiceFinder finder ) - { - this.finder = finder; - } - - public ApplicationAssembly assemble( ApplicationAssemblyFactory applicationFactory ) - throws AssemblyException - { - return applicationFactory.newApplicationAssembly( new Assembler() - { - public void assemble( ModuleAssembly module ) - throws AssemblyException - { - new LayerName( "Plugin layer" ).assemble( module ); - new ModuleName( "Plugin module" ).assemble( module ); - - LayerAssembly layer = module.layer(); - - // In a real case you would "detect" the plugins somehow. Here the plugin assembler is hardcoded - List pluginAssemblers = Collections.singletonList( new SimonAssembler() ); - - for( int i = 0; i < pluginAssemblers.size(); i++ ) - { - ModuleAssembly pluginModule = layer.module( "Plugin " + ( i + 1 ) ); - Assembler assembler = pluginAssemblers.get( i ); - assembler.assemble( pluginModule ); - } - - // Import host services - module.importedServices( HelloWorld.class ) - .importedBy( ServiceFinderImporter.class ) - .setMetaInfo( finder ) - .visibleIn( Visibility.layer ); - } - } ); - } - } - - // Service importer that uses a ServiceFinder - - public static class ServiceFinderImporter - implements ServiceImporter - { - public Object importService( final ImportedServiceDescriptor serviceDescriptor ) - throws ServiceImporterException - { - final Class mainType = serviceDescriptor.types().findFirst().orElse(null); - - Class[] interfaces = serviceDescriptor.types().toArray( Class[]::new ); - return Proxy.newProxyInstance( - mainType.getClassLoader(), - interfaces, - ( proxy, method, args ) -> { - ServiceFinder finder = serviceDescriptor.metaInfo( ServiceFinder.class ); - if( finder == null ) - { - throw new ServiceImporterException( "No ServiceFinder specified for imported service " + serviceDescriptor - .identity() ); - } - Object service = finder.findService( mainType ).get(); - return method.invoke( service, args ); - } ); - } - - public boolean isAvailable( Object instance ) - { - return true; - } - } - -// The plugin interface. Plugins should implement this, and they can then - - // be looked up by the host application - - interface Plugin - { - String say( String phrase, String name ); - } - - // Assemble a sample plugin - - public static class SimonAssembler - implements Assembler - { - public void assemble( ModuleAssembly module ) - throws AssemblyException - { - module.services( SimonSaysPlugin.class ).visibleIn( Visibility.layer ); - } - } - - // Test implementation of the plugin interface - - @Mixins( SimonSaysPlugin.SimonSaysMixin.class ) - interface SimonSaysPlugin - extends Plugin, ServiceComposite - { - class SimonSaysMixin - implements Plugin - { - @Service - HelloWorld helloWorld; - private Instant time; - - public SimonSaysMixin() - { - time = SystemTime.now(); - } - - public String say( String phrase, String name ) - { - return "Simon says:" + helloWorld.say( phrase, name ) + " (plugin started at:" + time + ")"; - } - } - } -}