mirror of https://github.com/contiki-ng/mspsim
122 lines
3.8 KiB
Java
122 lines
3.8 KiB
Java
/**
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* Copyright (c) 2008, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of MSPSim.
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*
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* $Id$
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*
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* -----------------------------------------------------------------
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*
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* PluginRepository
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*
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* Author : Joakim Eriksson, Niclas Finne
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* Created : Wed Feb 13 19:51:00 2008
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* Updated : $Date$
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* $Revision$
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*/
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package se.sics.mspsim.util;
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import java.io.File;
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import java.io.FileFilter;
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import java.io.IOException;
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import java.net.URL;
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import java.net.URLClassLoader;
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import java.util.jar.Attributes;
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import java.util.jar.JarFile;
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import java.util.jar.Manifest;
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public class PluginRepository implements ActiveComponent {
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private URLClassLoader classLoader;
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@Override
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public void init(String name, ComponentRegistry registry) {
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File dir = new File("plugins");
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if (dir.isDirectory()) {
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File[] files = dir.listFiles(new JarFilter());
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if (files != null) {
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try {
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URL[] jarFiles = new URL[files.length];
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String[] plugins = new String[files.length];
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int pluginCount = 0;
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for (int i = 0, n = files.length; i < n; i++) {
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URL jarURL = files[i].toURI().toURL();
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// System.out.println("JAR FILE: " + jarURL);
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JarFile jarFile = new JarFile(files[i]);
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Manifest mf = jarFile.getManifest();
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Attributes attr = mf.getMainAttributes();
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String pluginBundle = attr.getValue("mspsim-plugin");
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if (pluginBundle != null) {
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plugins[pluginCount++] = pluginBundle;
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}
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jarFiles[i] = jarURL;
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jarFile.close();
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}
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classLoader = URLClassLoader.newInstance(jarFiles);
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for (int i = 0; i < pluginCount; i++) {
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try {
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PluginBundle bundle = (PluginBundle)
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classLoader.loadClass(plugins[i]).getDeclaredConstructor().newInstance();
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bundle.init(registry);
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} catch (Exception e) {
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// TODO: handle exception
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}
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}
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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}
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public Class<?> loadClass(String name) throws ClassNotFoundException {
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if (classLoader == null) {
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return Class.forName(name);
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}
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return classLoader.loadClass(name);
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}
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@Override
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public void start() {
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}
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private static class JarFilter implements FileFilter {
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public boolean accept(File f) {
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if (f.isFile() && f.canRead()) {
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String name = f.getName().toLowerCase();
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return name.endsWith(".jar");
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}
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return false;
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}
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}
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}
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