org.openbp.common.classloader
Class XClassLoaderUtil

java.lang.Object
  org.openbp.common.classloader.XClassLoaderUtil

public final class XClassLoaderUtil
extends java.lang.Object

Utility classes for the XClassLoader package.

Author:

Heiko Erhardt

Method Summary

static void	addResourceEntryForClass(XClassLoader cl, java.lang.String resourceName, ResourceEntry entry) Adds the given resource entry as class mapping of the entry specifies a class file.
static byte[]	readFileContent(java.io.File file) Reads the resource from the repository.
static void	scanJarStream(XClassLoader cl, java.io.InputStream in, java.net.URL jarFileUrl) Reads the zip file from the given input stream, adding all of its contents that are java class files to the entry table.

Methods inherited from class java.lang.Object

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

Method Detail

readFileContent

public static byte[] readFileContent(java.io.File file)
                              throws java.lang.Exception

Reads the resource from the repository.

Parameters:

file - File to read

Returns:

Bytes that define the content of the entry (i. e. the class code)

Throws:

java.lang.Exception - On any error that occurs while scanning the repositories specified in the class loader configuration

scanJarStream

public static void scanJarStream(XClassLoader cl,
                                 java.io.InputStream in,
                                 java.net.URL jarFileUrl)
                          throws java.lang.Exception

Reads the zip file from the given input stream, adding all of its contents that are java class files to the entry table.

Parameters:

cl - The class loader

in - Input stream to the jar file

jarFileUrl - URL of the Jar file

Throws:

java.lang.Exception - On any error that occurs while scanning the repositories specified in the class loader configuration

addResourceEntryForClass

public static void addResourceEntryForClass(XClassLoader cl,
                                            java.lang.String resourceName,
                                            ResourceEntry entry)

Adds the given resource entry as class mapping of the entry specifies a class file. Does nothing if the entry does not denote a class file.

Parameters:

cl - The class loader

resourceName - Resource name (relative path name or zip entry name)

entry - Entry to add