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- /*
- * Copyright (C) 2012-present the original author or authors.
- *
- * Licensed 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.pf4j.demo;
-
- import org.apache.commons.lang.StringUtils;
- import org.pf4j.PluginManager;
- import org.pf4j.PluginWrapper;
- import org.pf4j.demo.api.Greeting;
- import org.slf4j.Logger;
- import org.slf4j.LoggerFactory;
-
- import java.util.List;
- import java.util.Set;
-
- /**
- * A boot class that start the demo.
- *
- * @author Decebal Suiu
- */
- public class Boot {
-
- private static final Logger log = LoggerFactory.getLogger(Boot.class);
-
- public static void main(String[] args) {
- // print logo
- printLogo();
-
- // create the plugin manager
- PluginManager pluginManager = new DemoPluginManager();
-
- // load the plugins
- pluginManager.loadPlugins();
-
- // enable a disabled plugin
- // pluginManager.enablePlugin("welcome-plugin");
-
- // start (active/resolved) the plugins
- pluginManager.startPlugins();
-
- // retrieves the extensions for Greeting extension point
- List<Greeting> greetings = pluginManager.getExtensions(Greeting.class);
- log.info("Found {} extensions for extension point '{}'", greetings.size(), Greeting.class.getName());
- for (Greeting greeting : greetings) {
- log.info(">>> {}", greeting.getGreeting());
- }
-
- // print extensions from classpath (non plugin)
- log.info("Extensions added by classpath:");
- Set<String> extensionClassNames = pluginManager.getExtensionClassNames(null);
- for (String extension : extensionClassNames) {
- log.info(" {}", extension);
- }
-
- log.info("Extension classes by classpath:");
- List<Class<? extends Greeting>> greetingsClasses = pluginManager.getExtensionClasses(Greeting.class);
- for (Class<? extends Greeting> greeting : greetingsClasses) {
- log.info(" Class: {}", greeting.getCanonicalName());
- }
-
- // print extensions ids for each started plugin
- List<PluginWrapper> startedPlugins = pluginManager.getStartedPlugins();
- for (PluginWrapper plugin : startedPlugins) {
- String pluginId = plugin.getDescriptor().getPluginId();
- log.info("Extensions added by plugin '{}}':", pluginId);
- extensionClassNames = pluginManager.getExtensionClassNames(pluginId);
- for (String extension : extensionClassNames) {
- log.info(" {}", extension);
- }
- }
-
- // print the extensions instances for Greeting extension point for each started plugin
- for (PluginWrapper plugin : startedPlugins) {
- String pluginId = plugin.getDescriptor().getPluginId();
- log.info("Extensions instances added by plugin '{}' for extension point '{}':", pluginId, Greeting.class.getName());
- List<Greeting> extensions = pluginManager.getExtensions(Greeting.class, pluginId);
- for (Object extension : extensions) {
- log.info(" {}", extension);
- }
- }
-
- // print extensions instances from classpath (non plugin)
- log.info("Extensions instances added by classpath:");
- List<?> extensions = pluginManager.getExtensions((String) null);
- for (Object extension : extensions) {
- log.info(" {}", extension);
- }
-
- // print extensions instances for each started plugin
- for (PluginWrapper plugin : startedPlugins) {
- String pluginId = plugin.getDescriptor().getPluginId();
- log.info("Extensions instances added by plugin '{}':", pluginId);
- extensions = pluginManager.getExtensions(pluginId);
- for (Object extension : extensions) {
- log.info(" {}", extension);
- }
- }
-
- // stop the plugins
- pluginManager.stopPlugins();
- /*
- Runtime.getRuntime().addShutdownHook(new Thread() {
-
- @Override
- public void run() {
- pluginManager.stopPlugins();
- }
-
- });
- */
- }
-
- private static void printLogo() {
- log.info(StringUtils.repeat("#", 40));
- log.info(StringUtils.center("PF4J-DEMO", 40));
- log.info(StringUtils.repeat("#", 40));
- }
-
- }
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