Package com.helger.commons.lang

Class ClassLoaderHelper

java.lang.Object
com.helger.commons.lang.ClassLoaderHelper
@Immutable public final class ClassLoaderHelper extends Object
ClassLoader utility methods.
Author:
Philip Helger

  • Method Details

    • getSystemClassLoader

      @Nonnull public static ClassLoader getSystemClassLoader()

    • getContextClassLoader

      @Nullable public static ClassLoader getContextClassLoader()

    • setContextClassLoader

      public static void setContextClassLoader(@Nonnull ClassLoader aClassLoader)

    • getClassClassLoader

      @Nullable public static ClassLoader getClassClassLoader(@Nonnull Class<?> aClass)

    • getParentClassLoader

      @Nullable public static ClassLoader getParentClassLoader(@Nonnull ClassLoader aClassLoader)

    • getDefaultClassLoader

      @Nonnull public static ClassLoader getDefaultClassLoader()

    • getResource

      @Nullable public static URL getResource(@Nonnull ClassLoader aClassLoader, @Nonnull @Nonempty String sPath)
      Get the URL of the passed resource using the specified class loader only. This is a sanity wrapper around classLoader.getResource (sPath).
      Parameters:
      aClassLoader - The class loader to be used. May not be null.
      sPath - The path to be resolved. May neither be null nor empty. Internally it is ensured that the provided path does NOT start with a slash.
      Returns:
      null if the path could not be resolved using the specified class loader.

    • getResources

      @Nonnull public static Enumeration<URL> getResources(@Nonnull ClassLoader aClassLoader, @Nonnull @Nonempty String sPath) throws IOException
      Get all URLs of the passed resource using the specified class loader only. This is a sanity wrapper around classLoader.getResources (sPath).
      Parameters:
      aClassLoader - The class loader to be used. May not be null.
      sPath - The path to be resolved. May neither be null nor empty. Internally it is ensured that the provided path does NOT start with a slash.
      Returns:
      null if the path could not be resolved using the specified class loader.
      Throws:
      IOException - In case an internal error occurs.

    • getResourceAsStream

      @Nullable public static InputStream getResourceAsStream(@Nonnull ClassLoader aClassLoader, @Nonnull @Nonempty String sPath)
      Get the input stream of the passed resource using the specified class loader only. This is a sanity wrapper around classLoader.getResourceAsStream (sPath).
      Parameters:
      aClassLoader - The class loader to be used. May not be null.
      sPath - The path to be resolved. May neither be null nor empty. Internally it is ensured that the provided path does NOT start with a slash.
      Returns:
      null if the path could not be resolved using the specified class loader.