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| | |
| | | /* |
| | | * Copyright 2014 gitblit.com. |
| | | * |
| | | * 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 com.gitblit.wicket; |
| | | |
| | | import java.io.IOException; |
| | | import java.net.URL; |
| | | import java.util.Enumeration; |
| | | import java.util.HashSet; |
| | | import java.util.Iterator; |
| | | import java.util.Set; |
| | | import java.util.TreeSet; |
| | | |
| | | import org.apache.wicket.WicketRuntimeException; |
| | | import org.apache.wicket.application.IClassResolver; |
| | | import org.slf4j.Logger; |
| | | import org.slf4j.LoggerFactory; |
| | | |
| | | import ro.fortsoft.pf4j.PluginState; |
| | | import ro.fortsoft.pf4j.PluginWrapper; |
| | | |
| | | import com.gitblit.manager.IPluginManager; |
| | | |
| | | /** |
| | | * Resolves plugin classes and resources. |
| | | */ |
| | | public class PluginClassResolver implements IClassResolver { |
| | | private static final Logger logger = LoggerFactory.getLogger(PluginClassResolver.class); |
| | | |
| | | private final IClassResolver coreResolver; |
| | | private final IPluginManager pluginManager; |
| | | |
| | | public PluginClassResolver(IClassResolver coreResolver, IPluginManager pluginManager) { |
| | | this.coreResolver = coreResolver; |
| | | this.pluginManager = pluginManager; |
| | | } |
| | | |
| | | @Override |
| | | public Class<?> resolveClass(final String className) throws ClassNotFoundException { |
| | | boolean debugEnabled = logger.isDebugEnabled(); |
| | | |
| | | for (PluginWrapper plugin : pluginManager.getPlugins()) { |
| | | if (PluginState.STARTED != plugin.getPluginState()) { |
| | | // ignore this plugin |
| | | continue; |
| | | } |
| | | |
| | | try { |
| | | return plugin.getPluginClassLoader().loadClass(className); |
| | | } catch (ClassNotFoundException cnfx) { |
| | | if (debugEnabled) { |
| | | logger.debug("ClassResolver '{}' cannot find class: '{}'", plugin.getPluginId(), className); |
| | | } |
| | | } |
| | | } |
| | | |
| | | return coreResolver.resolveClass(className); |
| | | } |
| | | |
| | | @Override |
| | | public Iterator<URL> getResources(final String name) { |
| | | Set<URL> urls = new TreeSet<URL>(new UrlExternalFormComparator()); |
| | | |
| | | for (PluginWrapper plugin : pluginManager.getPlugins()) { |
| | | if (PluginState.STARTED != plugin.getPluginState()) { |
| | | // ignore this plugin |
| | | continue; |
| | | } |
| | | |
| | | Iterator<URL> it = getResources(name, plugin); |
| | | while (it.hasNext()) { |
| | | URL url = it.next(); |
| | | urls.add(url); |
| | | } |
| | | } |
| | | |
| | | Iterator<URL> it = coreResolver.getResources(name); |
| | | while (it.hasNext()) { |
| | | URL url = it.next(); |
| | | urls.add(url); |
| | | } |
| | | return urls.iterator(); |
| | | } |
| | | |
| | | protected Iterator<URL> getResources(String name, PluginWrapper plugin) { |
| | | HashSet<URL> loadedFiles = new HashSet<URL>(); |
| | | try { |
| | | // Try the classloader for the wicket jar/bundle |
| | | Enumeration<URL> resources = plugin.getPluginClassLoader().getResources(name); |
| | | loadResources(resources, loadedFiles); |
| | | } catch (IOException e) { |
| | | throw new WicketRuntimeException(e); |
| | | } |
| | | |
| | | return loadedFiles.iterator(); |
| | | } |
| | | |
| | | private void loadResources(Enumeration<URL> resources, Set<URL> loadedFiles) { |
| | | if (resources != null) { |
| | | while (resources.hasMoreElements()) { |
| | | final URL url = resources.nextElement(); |
| | | if (!loadedFiles.contains(url)) { |
| | | loadedFiles.add(url); |
| | | } |
| | | } |
| | | } |
| | | } |
| | | } |