org.apache.xml.security.utils
Class JavaUtils

java.lang.Object
  |
  +--org.apache.xml.security.utils.JavaUtils

public class JavaUtils

extends java.lang.Object

A collection of different, general-purpose methods for JAVA-specific things

Author:

Christian Geuer-Pollmann

Method Summary

static boolean	binaryCompare(byte[] refBytes, byte[] c14nBytes) Returns true if both byte arrays are bytewise equal, false if the differ.
static byte[]	getBytesFromFile(java.lang.String fileName) Method getBytesFromFile
static byte[]	getBytesFromStream(java.io.InputStream inputStream) This method reads all bytes from the given InputStream till EOF and returns them as a byte array.
static boolean	implementsInterface(java.lang.Object object, java.lang.String interfaceName) Checks whether an object implements a specific interface.
static boolean	instanceOf(java.lang.Object object, java.lang.String className)
static void	runGC() Method runGC
static void	writeBytesToFilename(java.lang.String filename, byte[] bytes) Method writeBytesToFilename

Methods inherited from class java.lang.Object

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

Method Detail

implementsInterface

public static boolean implementsInterface(java.lang.Object object,
                                          java.lang.String interfaceName)

Checks whether an object implements a specific interface.

 org.w3c.dom.Document doc = ...; // some init

 boolean this_is_true =
    JavaUtils.implementsInterface(doc.getDocumentElement(),
                                  "org.w3c.dom.Element");

 boolean this_is_true_too =
    JavaUtils.implementsInterface(doc.getDocumentElement(),
                                  "org.w3c.dom.Node");

 

Parameters:

object - which is to be checked

interfaceName - is the String of the Interface

Returns:

true if the object implements the specified interface

instanceOf

public static boolean instanceOf(java.lang.Object object,
                                 java.lang.String className)

Parameters:

object -

className -

binaryCompare

public static boolean binaryCompare(byte[] refBytes,
                                    byte[] c14nBytes)

Returns true if both byte arrays are bytewise equal, false if the differ.

Parameters:

refBytes -

c14nBytes -

Returns:

true if both byte arrays are bytewise equal, false if the differ.

See Also:

MessageDigest.isEqual(byte[], byte[])

getBytesFromFile

public static byte[] getBytesFromFile(java.lang.String fileName)
                               throws java.io.FileNotFoundException,
                                      java.io.IOException

Method getBytesFromFile

Parameters:

fileName -

Throws:

java.io.FileNotFoundException

java.io.IOException

writeBytesToFilename

public static void writeBytesToFilename(java.lang.String filename,
                                        byte[] bytes)

Method writeBytesToFilename

Parameters:

filename -

bytes -

getBytesFromStream

public static byte[] getBytesFromStream(java.io.InputStream inputStream)
                                 throws java.io.IOException

This method reads all bytes from the given InputStream till EOF and returns them as a byte array.

Parameters:

inputStream -

Throws:

java.io.FileNotFoundException

java.io.IOException

runGC

public static void runGC()

Method runGC