Package rife.tools

Class ClassBytesLoader

java.lang.Object

rife.tools.ClassBytesLoader

public class ClassBytesLoader
extends Object

Utility class to load the bytes of class files.

Since:

1.0

Constructor Summary

Constructors

Constructor	Description
ClassBytesLoader(ClassLoader classLoader)	Instantiates a new bytes loader for class files.

Method Summary

Modifier and Type	Method	Description
byte[]	getClassBytes(String classFileName)	Retrieves a byte array that contains the bytecode for a specific Java class.
byte[]	getClassBytes(String classFileName, URL classResource)	Retrieves a byte array that contains the bytecode for a specific Java class.

Methods inherited from class java.lang.Object

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

Constructor Details

ClassBytesLoader

public ClassBytesLoader(ClassLoader classLoader)

Instantiates a new bytes loader for class files.

Parameters:

classLoader - the classloader that should be used to search for the classes

Since:

1.0

Method Details

getClassBytes

public byte[] getClassBytes(String classFileName)
                     throws ClassNotFoundException

Retrieves a byte array that contains the bytecode for a specific Java class.

Parameters:

classFileName - the file name of the class whose bytes should be loaded, note that this is not the Java FQN (rife.Version), but the real name of the file resource (rife/Version.java)

Returns:

an array with the bytes of the class; or

null if no bytes could be loaded

Throws:

ClassNotFoundException

Since:

1.0

See Also:

• getClassBytes(String, URL)

getClassBytes

public byte[] getClassBytes(String classFileName,
 URL classResource)
                     throws ClassNotFoundException

Retrieves a byte array that contains the bytecode for a specific Java class.

Parameters:

classFileName - the file name of the class whose bytes should be loaded, note that this is not the Java FQN (rife.Version), but the real name of the file resource (rife/Version.java)

classResource - the resource that can be used to load the class bytes from if it couldn't be obtained by using the file name, if no resource is provided and the bytes couldn't be loaded by simply using the class' file name, a resource will be looked up for the file name through the class loader that was provided to the constructor

Returns:

an array with the bytes of the class; or

null if no bytes could be loaded

Throws:

ClassNotFoundException

Since:

1.0

See Also:

• getClassBytes(String)