bpiwowar.argparser.utils
Class Introspection

java.lang.Object
  bpiwowar.argparser.utils.Introspection

public class Introspection
extends Object

Methods used for introspection

Author:

B. Piwowarski

Nested Class Summary

static interface

Introspection.Checker A checker class

Field Summary

static org.apache.log4j.Logger

logger

Constructor Summary

Introspection()

Method Summary

static void	addClasses(Introspection.Checker checker, ArrayList<Class<?>> list, int levels, JarURLConnection conn, String prefix)
static void	addClasses(Introspection.Checker checker, ArrayList<Class<?>> list, String packageName, int levels) Add classes to the list
static void	addClasses(Introspection.Checker checker, ArrayList<Class<?>> list, String packageName, int levels, File directory)
static void	addClasses(Introspection.Checker checker, ArrayList<Class<?>> list, String packageName, int levels, URL url)
static void	addImplementors(ArrayList<Class<?>> list, Class<?> which, String packageName, int levels)
static ArrayList<Class<?>>	getClasses(Introspection.Checker checker, String packageName, int levels)
static Class<?>[]	getImplementors(Class<?> which, String packageName, int levels) Get the list of class which implement a given class

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

logger

public static org.apache.log4j.Logger logger

Constructor Detail

Introspection

public Introspection()

Method Detail

getImplementors

public static Class<?>[] getImplementors(Class<?> which,
                                         String packageName,
                                         int levels)

Get the list of class which implement a given class

Parameters:

which - The base class

packageName - the package where classes are searched

levels - number of levels to be explored (-1 for infinity)

Returns:

an array of objects of the given class

addImplementors

public static void addImplementors(ArrayList<Class<?>> list,
                                   Class<?> which,
                                   String packageName,
                                   int levels)

getClasses

public static ArrayList<Class<?>> getClasses(Introspection.Checker checker,
                                             String packageName,
                                             int levels)

addClasses

public static void addClasses(Introspection.Checker checker,
                              ArrayList<Class<?>> list,
                              String packageName,
                              int levels)

Add classes to the list

Parameters:

checker - Used to filter the classes

list - The list to fill

packageName - The package to be analyzed

levels - The maximum number of recursion within the structure (or -1 if infinite)

addClasses

public static void addClasses(Introspection.Checker checker,
                              ArrayList<Class<?>> list,
                              String packageName,
                              int levels,
                              URL url)

Parameters:

checker -

list -

packageName -

levels -

url -

addClasses

public static void addClasses(Introspection.Checker checker,
                              ArrayList<Class<?>> list,
                              int levels,
                              JarURLConnection conn,
                              String prefix)
                       throws IOException

Parameters:

checker -

list -

levels -

conn -

prefix -

Throws:

IOException

addClasses

public static void addClasses(Introspection.Checker checker,
                              ArrayList<Class<?>> list,
                              String packageName,
                              int levels,
                              File directory)

Parameters:

checker -

list -

packageName -

levels -

directory -