Class MainClassFinder

Constructor Detail

• MainClassFinder

  public MainClassFinder()

Method Detail

• findMainClass

  public static String findMainClass​(File rootFolder)
                              throws IOException

  Find the main class from a given folder.

  Parameters:

  rootFolder - the root folder to search

  Returns:

  the main class or null

  Throws:

  IOException - if the folder cannot be read

• findSingleMainClass

  public static String findSingleMainClass​(File rootFolder)
                                    throws IOException

  Find a single main class from the given rootFolder.

  Parameters:

  rootFolder - the root folder to search

  Returns:

  the main class or null

  Throws:

  IOException - if the folder cannot be read

• findSingleMainClass

  public static String findSingleMainClass​(File rootFolder,
                                           String annotationName)
                                    throws IOException

  Find a single main class from the given rootFolder. A main class annotated with an annotation with the given annotationName will be preferred over a main class with no such annotation.

  Parameters:

  rootFolder - the root folder to search

  annotationName - the name of the annotation that may be present on the main class

  Returns:

  the main class or null

  Throws:

  IOException - if the folder cannot be read

• findMainClass

  public static String findMainClass​(JarFile jarFile,
                                     String classesLocation)
                              throws IOException

  Find the main class in a given jar file.

  Parameters:

  jarFile - the jar file to search

  classesLocation - the location within the jar containing classes

  Returns:

  the main class or null

  Throws:

  IOException - if the jar file cannot be read

• findSingleMainClass

  public static String findSingleMainClass​(JarFile jarFile,
                                           String classesLocation)
                                    throws IOException

  Find a single main class in a given jar file.

  Parameters:

  jarFile - the jar file to search

  classesLocation - the location within the jar containing classes

  Returns:

  the main class or null

  Throws:

  IOException - if the jar file cannot be read

• findSingleMainClass

  public static String findSingleMainClass​(JarFile jarFile,
                                           String classesLocation,
                                           String annotationName)
                                    throws IOException

  Find a single main class in a given jar file. A main class annotated with an annotation with the given annotationName will be preferred over a main class with no such annotation.

  Parameters:

  jarFile - the jar file to search

  classesLocation - the location within the jar containing classes

  annotationName - the name of the annotation that may be present on the main class

  Returns:

  the main class or null

  Throws:

  IOException - if the jar file cannot be read