コード例 #1
0
  static URL[] findClasspathURLS(String classpathStr) throws MalformedURLException {
    /* If harvester.home is set, then the classpath urls should be taken
    as relative to that path.
    */
    String homePath = System.getProperty(Strings.HARVESTER_DOT_HOME);
    System.out.println("harvester.home=" + homePath);
    log.log(Level.FINE, MessageNames.HOMEPATH_IS, homePath);
    File homePathFile = (homePath == null) ? new File(Strings.DOT) : new File(homePath);

    StringTokenizer tok = new StringTokenizer(classpathStr, Strings.WHITESPACE_SEPARATORS);
    List<URL> pathElements = new ArrayList<URL>();
    while (tok.hasMoreTokens()) {
      File f = new File(homePathFile, tok.nextToken());
      pathElements.add(f.toURI().toURL());
    }
    URL[] urls = (URL[]) pathElements.toArray(new URL[0]);
    return urls;
  }
コード例 #2
0
  private static ClassLoader resolveClassLoader(
      Map<String, ClassLoader> classLoaders,
      List<String> seen,
      Map<String, Classpath> classpaths,
      String id)
      throws MalformedURLException {
    if (classLoaders.containsKey(id)) {
      return classLoaders.get(id);
    }
    if (seen.contains(id)) {
      throw new ConfigurationException(MessageNames.CIRCULAR_CLASSPATH, id);
    }
    // Add the id to the list of classloaders we have attempted to build.
    seen.add(id);
    Classpath classpath = classpaths.get(id);
    if (classpath == null) {
      throw new ConfigurationException(MessageNames.CLASSPATH_UNDEFINED, id);
    }
    String parentClasspathId = classpath.getParent();
    ClassLoader parentClassLoader = null;
    if (parentClasspathId != null && !Strings.EMPTY.equals(parentClasspathId)) {
      parentClassLoader = resolveClassLoader(classLoaders, seen, classpaths, parentClasspathId);
    } else {
      /* Should be the 'extension' classloader. */
      parentClassLoader = Bootstrap.class.getClassLoader().getParent();
    }
    URL[] classpathUrls;
    classpathUrls = findClasspathURLS(classpath.getValue());

    SettableCodebaseClassLoader classLoader =
        new SettableCodebaseClassLoader(classpathUrls, parentClassLoader);
    classLoaders.put(id, classLoader);
    log.log(
        Level.FINE,
        MessageNames.CONFIGURED_CLASSPATH,
        new Object[] {id, Utils.format(classpathUrls)});
    seen.remove(id);
    return classLoader;
  }