Constructor Detail

• ClassFinder

  public ClassFinder()

• ClassFinder

  public ClassFinder​(ClassLoader loader)

• ClassFinder

  public ClassFinder​(File jarFile)
              throws IOException

  Throws:

  IOException

Method Detail

• toClassName

  public String toClassName​(String filename)

  Convert a filename to a class name by removing '.class' and converting '/'s to '.'s.

• find

  public void find​(String packageName,
                   Class<?> parentType)

  Scans the classpath for classes within the specified package and sub-packages that extend the parentType. This method can be called repeatedly with different packages. Classes are accumulated internally and can be accessed by calling getClasses().

• scanJar

  protected void scanJar​(File file,
                         String packagePath)
                  throws IOException

  Scans the entries in a ZIP/JAR file for classes under the parent package.

  Parameters:

  file - the jar file to be scanned

  packagePath - the top level package to start from

  Throws:

  IOException

• scanDir

  protected void scanDir​(File file,
                         String path)

  Scans a directory on the filesystem for classes.

  Parameters:

  file - the directory or file to examine

  path - the package path acculmulated so far (e.g. edu/mit/broad)

• handleItem

  protected void handleItem​(String name)

  Checks an item to see if it is a class and is annotated with the specified annotation. If so, adds it to the set, otherwise ignores it.

  Parameters:

  name - the path equivelant to the package + class/item name

• getClasses

  public Set<Class<?>> getClasses()

  Fetches the set of classes discovered so far.

• getConcreteClasses

  public Set<Class<?>> getConcreteClasses()

  Fetches the set of classes discovered so far, subsetted down to concrete (non-abstract/interface) classes only

  Returns:

  subset of classes discovered so far including only concrete (non-abstract/interface) classes

• isConcrete

  public static boolean isConcrete​(Class<?> clazz)

  Determines whether or not the specified class is concrete (ie., non-abstract and non-interface)

  Parameters:

  clazz - class to check

  Returns:

  true if the class is neither abstract nor an interface, otherwise false