Package tigase.osgi.util

Class ClassUtil

  • public class ClassUtil
extends java.lang.Object
    ClassUtil file contains code used for loading all implementations of specified interface or abstract class found in classpath. As a result of calling some functions you can have Set containing all required classes.

    Created: Wed Oct 6 08:25:52 2004

    Version:
    $Rev: 609 $
    Author:
    Artur Hefczyc

    • Constructor Summary

      Constructors 
      Constructor Description
      ClassUtil()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static <T extends java.lang.Class,​S extends java.lang.Class>
      java.util.Set<S>      		 getClassesAnnotated​(java.lang.ClassLoader loader, java.io.File f, T cls)
      Scans file for classes annotated with annotation T * * @param loader class loader used to load classes
      static <T extends java.lang.Class,​S extends java.lang.Class>
      java.util.Set<S>      		 getClassesAnnotated​(org.osgi.framework.Bundle bundle, T cls)
      Scans OSGI bundle for classes annotated with annotation T * * @param bundle bundle to scan for annotated classes
      static java.util.Set<java.lang.Class<?>> getClassesFromBundle​(org.osgi.framework.Bundle bundle)  
      static java.util.Set<java.lang.Class> getClassesFromClassPath()  
      static java.util.Set<java.lang.Class> getClassesFromNames​(java.lang.ClassLoader loader, java.util.Set<java.lang.String> names)  
      static <T extends java.lang.Class>
      java.util.Set<T>      		 getClassesImplementing​(java.lang.ClassLoader loader, java.io.File f, T cls)  
      static <T extends java.lang.Class>
      java.util.Set<T>      		 getClassesImplementing​(java.util.Collection<java.lang.Class> classes, T cls)  
      static <T extends java.lang.Class>
      java.util.Set<T>      		 getClassesImplementing​(org.osgi.framework.Bundle bundle, T cls)
      Scans OSGI bundle for classes implementing class T
      static <T extends java.lang.Class>
      java.util.Set<T>      		 getClassesImplementing​(T cls)  
      static java.lang.String getClassNameFromFileName​(java.lang.String fileName)  
      static java.util.Set<java.lang.String> getClassNamesFromDir​(java.io.File dir)  
      static java.util.Set<java.lang.String> getClassNamesFromJar​(java.io.File jarFile)  
      static java.util.Set<java.lang.String> getClassNamesFromWar​(java.io.File jarFile)  
      static java.util.Set<java.lang.String> getFileListDeep​(java.io.File path)  
      static <T> java.util.Set<T> getImplementations​(java.lang.Class<T> obj)  
      static void walkInDirForFiles​(java.io.File base_dir, java.lang.String path, java.util.Set<java.lang.String> set)  

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • ClassUtil

        public ClassUtil()

    • Method Detail

      • getClassNameFromFileName

        public static java.lang.String getClassNameFromFileName​(java.lang.String fileName)

      • getClassNamesFromDir

        public static java.util.Set<java.lang.String> getClassNamesFromDir​(java.io.File dir)

      • getClassNamesFromJar

        public static java.util.Set<java.lang.String> getClassNamesFromJar​(java.io.File jarFile)
                                                            throws java.io.IOException
        Throws:
        java.io.IOException

      • getClassNamesFromWar

        public static java.util.Set<java.lang.String> getClassNamesFromWar​(java.io.File jarFile)
                                                            throws java.io.IOException
        Throws:
        java.io.IOException

      • getClassesAnnotated

        public static <T extends java.lang.Class,​S extends java.lang.Class> java.util.Set<S> getClassesAnnotated​(java.lang.ClassLoader loader,
                                                                                                               java.io.File f,
                                                                                                               T cls)
                                                                                                        throws java.io.IOException,
                                                                                                               java.lang.ClassNotFoundException
        Scans file for classes annotated with annotation T * * @param loader class loader used to load classes
        Parameters:
        f - file to scan for classes
        cls - annotation class
        Returns:
        set of annotated classes
        Throws:
        java.io.IOException
        java.lang.ClassNotFoundException

      • getClassesAnnotated

        public static <T extends java.lang.Class,​S extends java.lang.Class> java.util.Set<S> getClassesAnnotated​(org.osgi.framework.Bundle bundle,
                                                                                                               T cls)
                                                                                                        throws java.io.IOException,
                                                                                                               java.lang.ClassNotFoundException
        Scans OSGI bundle for classes annotated with annotation T * * @param bundle bundle to scan for annotated classes
        Parameters:
        cls - annotation class
        Returns:
        set of annotated classes
        Throws:
        java.io.IOException
        java.lang.ClassNotFoundException

      • getClassesFromBundle

        public static java.util.Set<java.lang.Class<?>> getClassesFromBundle​(org.osgi.framework.Bundle bundle)

      • getClassesFromClassPath

        public static java.util.Set<java.lang.Class> getClassesFromClassPath()
                                                              throws java.io.IOException,
                                                                     java.lang.ClassNotFoundException
        Throws:
        java.io.IOException
        java.lang.ClassNotFoundException

      • getClassesFromNames

        public static java.util.Set<java.lang.Class> getClassesFromNames​(java.lang.ClassLoader loader,
                                                                 java.util.Set<java.lang.String> names)
                                                          throws java.lang.ClassNotFoundException
        Throws:
        java.lang.ClassNotFoundException

      • getClassesImplementing

        public static <T extends java.lang.Class> java.util.Set<T> getClassesImplementing​(java.util.Collection<java.lang.Class> classes,
                                                                                  T cls)

      • getClassesImplementing

        public static <T extends java.lang.Class> java.util.Set<T> getClassesImplementing​(T cls)
                                                                           throws java.io.IOException,
                                                                                  java.lang.ClassNotFoundException
        Throws:
        java.io.IOException
        java.lang.ClassNotFoundException

      • getClassesImplementing

        public static <T extends java.lang.Class> java.util.Set<T> getClassesImplementing​(java.lang.ClassLoader loader,
                                                                                  java.io.File f,
                                                                                  T cls)
                                                                           throws java.io.IOException,
                                                                                  java.lang.ClassNotFoundException
        Throws:
        java.io.IOException
        java.lang.ClassNotFoundException

      • getClassesImplementing

        public static <T extends java.lang.Class> java.util.Set<T> getClassesImplementing​(org.osgi.framework.Bundle bundle,
                                                                                  T cls)
                                                                           throws java.io.IOException,
                                                                                  java.lang.ClassNotFoundException
        Scans OSGI bundle for classes implementing class T
        Type Parameters:
        T - return type param
        Parameters:
        bundle - bundle to scan
        cls - base class
        Returns:
        returns set of implementations
        Throws:
        java.io.IOException
        java.lang.ClassNotFoundException

      • getFileListDeep

        public static java.util.Set<java.lang.String> getFileListDeep​(java.io.File path)

      • getImplementations

        public static <T> java.util.Set<T> getImplementations​(java.lang.Class<T> obj)
                                               throws java.io.IOException,
                                                      java.lang.ClassNotFoundException,
                                                      java.lang.InstantiationException,
                                                      java.lang.IllegalAccessException
        Throws:
        java.io.IOException
        java.lang.ClassNotFoundException
        java.lang.InstantiationException
        java.lang.IllegalAccessException

      • walkInDirForFiles

        public static void walkInDirForFiles​(java.io.File base_dir,
                                     java.lang.String path,
                                     java.util.Set<java.lang.String> set)