Package org.apache.batik.util

Class ClassFileUtilities

java.lang.Object

org.apache.batik.util.ClassFileUtilities

public class ClassFileUtilities
extends java.lang.Object

This class contains utility methods to manipulate Java classes.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	ClassFileUtilities.ClassFile
protected static class	ClassFileUtilities.Jar
protected static class	ClassFileUtilities.Triple

Field Summary

Fields

Modifier and Type	Field	Description
static byte	CONSTANT_CLASS_INFO
static byte	CONSTANT_DOUBLE_INFO
static byte	CONSTANT_FIELDREF_INFO
static byte	CONSTANT_FLOAT_INFO
static byte	CONSTANT_INTEGER_INFO
static byte	CONSTANT_INTERFACEMETHODREF_INFO
static byte	CONSTANT_LONG_INFO
static byte	CONSTANT_METHODREF_INFO
static byte	CONSTANT_NAMEANDTYPE_INFO
static byte	CONSTANT_STRING_INFO
static byte	CONSTANT_UTF8_INFO

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ClassFileUtilities()	This class does not need to be instantiated.

Method Summary

Modifier and Type	Method	Description
static java.util.Set	getClassDependencies(java.io.InputStream is)	Returns the dependencies of the given class.
static java.util.Set	getClassDependencies(java.io.InputStream is, java.util.Set classpath, boolean rec)
static java.util.Set	getClassDependencies(java.lang.String path, java.util.Set classpath, boolean rec)	Returns the dependencies of the given class.
protected static java.util.Set	getDescriptorClasses(java.lang.String desc)	Returns the classes contained in a field or method desciptor.
static void	main(java.lang.String[] args)	Program that computes the dependencies between the Batik jars.

Methods inherited from class java.lang.Object

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

Field Detail

CONSTANT_UTF8_INFO

public static final byte CONSTANT_UTF8_INFO

See Also:

Constant Field Values

CONSTANT_INTEGER_INFO

public static final byte CONSTANT_INTEGER_INFO

See Also:

Constant Field Values

CONSTANT_FLOAT_INFO

public static final byte CONSTANT_FLOAT_INFO

See Also:

Constant Field Values

CONSTANT_LONG_INFO

public static final byte CONSTANT_LONG_INFO

See Also:

Constant Field Values

CONSTANT_DOUBLE_INFO

public static final byte CONSTANT_DOUBLE_INFO

See Also:

Constant Field Values

CONSTANT_CLASS_INFO

public static final byte CONSTANT_CLASS_INFO

See Also:

Constant Field Values

CONSTANT_STRING_INFO

public static final byte CONSTANT_STRING_INFO

See Also:

Constant Field Values

CONSTANT_FIELDREF_INFO

public static final byte CONSTANT_FIELDREF_INFO

See Also:

Constant Field Values

CONSTANT_METHODREF_INFO

public static final byte CONSTANT_METHODREF_INFO

See Also:

Constant Field Values

CONSTANT_INTERFACEMETHODREF_INFO

public static final byte CONSTANT_INTERFACEMETHODREF_INFO

See Also:

Constant Field Values

CONSTANT_NAMEANDTYPE_INFO

public static final byte CONSTANT_NAMEANDTYPE_INFO

See Also:

Constant Field Values

Constructor Detail

ClassFileUtilities

protected ClassFileUtilities()

This class does not need to be instantiated.

Method Detail

main

public static void main(java.lang.String[] args)

Program that computes the dependencies between the Batik jars.

Run this from the main Batik distribution directory, after building the jars. For every jar file in the batik-xxx/ build directory, it will determine which other jar files it directly depends on. The output is lines of the form:

  number,from,to

where mean that the from jar has number class files that depend on class files in the to jar.

getClassDependencies

public static java.util.Set getClassDependencies(java.lang.String path,
                                                 java.util.Set classpath,
                                                 boolean rec)
                                          throws java.io.IOException

Returns the dependencies of the given class.

Parameters:

path - The root class path.

classpath - The set of directories (Strings) to scan.

rec - Whether to follow dependencies recursively.

Returns:

a list of paths representing the used classes.

Throws:

java.io.IOException

getClassDependencies

public static java.util.Set getClassDependencies(java.io.InputStream is,
                                                 java.util.Set classpath,
                                                 boolean rec)
                                          throws java.io.IOException

Throws:

java.io.IOException

getClassDependencies

public static java.util.Set getClassDependencies(java.io.InputStream is)
                                          throws java.io.IOException

Returns the dependencies of the given class.

Returns:

a list of strings representing the used classes.

Throws:

java.io.IOException

getDescriptorClasses

protected static java.util.Set getDescriptorClasses(java.lang.String desc)

Returns the classes contained in a field or method desciptor.