Package org.apache.tools.ant.util

Class LoaderUtils

java.lang.Object
org.apache.tools.ant.util.LoaderUtils
public class LoaderUtils
extends java.lang.Object
ClassLoader utility methods

  • Constructor Summary

    Constructors 
    Constructor Description
    LoaderUtils()  

  • Method Summary

    Modifier and Type Method Description
    static boolean classExists​(java.lang.ClassLoader loader, java.lang.String className)
    Check if a classloader has a classname resource.
    static java.lang.String classNameToResource​(java.lang.String className)
    Return the resource name of a class name.
    static java.io.File getClassSource​(java.lang.Class<?> c)
    Find the directory or jar file the class has been loaded from.
    static java.lang.ClassLoader getContextClassLoader()
    JDK1.1 compatible access to set the context class loader.
    static java.io.File getResourceSource​(java.lang.ClassLoader c, java.lang.String resource)
    Find the directory or a give resource has been loaded from.
    static boolean isContextLoaderAvailable()
    Indicates if the context class loader methods are available
    static void setContextClassLoader​(java.lang.ClassLoader loader)
    Set the context classloader

    Methods inherited from class java.lang.Object

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

  • Constructor Details

  • Method Details

    • setContextClassLoader

      public static void setContextClassLoader​(java.lang.ClassLoader loader)
      Set the context classloader
      Parameters:
      loader - the ClassLoader to be used as the context class loader on the current thread.

    • getContextClassLoader

      public static java.lang.ClassLoader getContextClassLoader()
      JDK1.1 compatible access to set the context class loader.
      Returns:
      the ClassLoader instance being used as the context classloader on the current thread. Returns null on JDK 1.1

    • isContextLoaderAvailable

      public static boolean isContextLoaderAvailable()
      Indicates if the context class loader methods are available
      Returns:
      true if the get and set methods dealing with the context classloader are available.

    • getClassSource

      public static java.io.File getClassSource​(java.lang.Class<?> c)
      Find the directory or jar file the class has been loaded from.
      Parameters:
      c - the class whose location is required.
      Returns:
      the file or jar with the class or null if we cannot determine the location.
      Since:
      Ant 1.6

    • getResourceSource

      public static java.io.File getResourceSource​(java.lang.ClassLoader c, java.lang.String resource)
      Find the directory or a give resource has been loaded from.
      Parameters:
      c - the classloader to be consulted for the source
      resource - the resource whose location is required.
      Returns:
      the file with the resource source or null if we cannot determine the location.
      Since:
      Ant 1.6

    • classNameToResource

      public static java.lang.String classNameToResource​(java.lang.String className)
      Return the resource name of a class name.
      Parameters:
      className - the name of the class to convert.
      Returns:
      the corresponding resource name.
      Since:
      Ant 1.7.0.

    • classExists

      public static boolean classExists​(java.lang.ClassLoader loader, java.lang.String className)
      Check if a classloader has a classname resource.
      Parameters:
      loader - the classloader to look it.
      className - the name of the class to look for.
      Returns:
      true if the class exists, false otherwise
      Since:
      Ant 1.7.0.