org.apache.bcel.util

Class ClassPath

java.lang.Object

org.apache.bcel.util.ClassPath

public class ClassPath
extends java.lang.Object

Responsible for loading (class) files from the CLASSPATH. Inspired by sun.tools.ClassPath.

Version:

$Id: ClassPath.java 1806200 2017-08-25 16:33:06Z ggregory $

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	ClassPath.ClassFile Contains information about file/ZIP entry of the Java class.
private static class	ClassPath.Dir
private static class	ClassPath.PathEntry
private static class	ClassPath.Zip

Field Summary

Fields

Modifier and Type	Field and Description
private static java.io.FilenameFilter	ARCHIVE_FILTER
private java.lang.String	class_path
private ClassPath	parent
private ClassPath.PathEntry[]	paths
static ClassPath	SYSTEM_CLASS_PATH

Constructor Summary

Constructors

Constructor and Description
ClassPath() Deprecated. Use SYSTEM_CLASS_PATH constant
ClassPath(ClassPath parent, java.lang.String class_path)
ClassPath(java.lang.String class_path) Search for classes in given path.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o)
byte[]	getBytes(java.lang.String name)
byte[]	getBytes(java.lang.String name, java.lang.String suffix)
ClassPath.ClassFile	getClassFile(java.lang.String name)
ClassPath.ClassFile	getClassFile(java.lang.String name, java.lang.String suffix)
private ClassPath.ClassFile	getClassFileInternal(java.lang.String name, java.lang.String suffix)
static java.lang.String	getClassPath() Checks for class path components in the following properties: "java.class.path", "sun.boot.class.path", "java.ext.dirs"
java.io.InputStream	getInputStream(java.lang.String name)
java.io.InputStream	getInputStream(java.lang.String name, java.lang.String suffix) Return stream for class or resource on CLASSPATH.
java.lang.String	getPath(java.lang.String name)
java.lang.String	getPath(java.lang.String name, java.lang.String suffix)
private static void	getPathComponents(java.lang.String path, java.util.List<java.lang.String> list)
java.net.URL	getResource(java.lang.String name)
java.io.InputStream	getResourceAsStream(java.lang.String name)
java.util.Enumeration<java.net.URL>	getResources(java.lang.String name)
int	hashCode()
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

SYSTEM_CLASS_PATH

public static final ClassPath SYSTEM_CLASS_PATH

ARCHIVE_FILTER

private static final java.io.FilenameFilter ARCHIVE_FILTER

paths

private final ClassPath.PathEntry[] paths

class_path

private final java.lang.String class_path

parent

private ClassPath parent

Constructor Detail

ClassPath

public ClassPath(ClassPath parent,
                 java.lang.String class_path)

ClassPath

public ClassPath(java.lang.String class_path)

Search for classes in given path.

Parameters:

class_path -

ClassPath

@Deprecated
public ClassPath()

Deprecated. Use SYSTEM_CLASS_PATH constant

Search for classes in CLASSPATH.

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Returns:

used class path string

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

getPathComponents

private static void getPathComponents(java.lang.String path,
                                      java.util.List<java.lang.String> list)

getClassPath

public static java.lang.String getClassPath()

Checks for class path components in the following properties: "java.class.path", "sun.boot.class.path", "java.ext.dirs"

Returns:

class path as used by default by BCEL

getInputStream

public java.io.InputStream getInputStream(java.lang.String name)
                                   throws java.io.IOException

Parameters:

name - fully qualified class name, e.g. java.lang.String

Returns:

input stream for class

Throws:

java.io.IOException

getInputStream

public java.io.InputStream getInputStream(java.lang.String name,
                                          java.lang.String suffix)
                                   throws java.io.IOException

Return stream for class or resource on CLASSPATH.

Parameters:

name - fully qualified file name, e.g. java/lang/String

suffix - file name ends with suff, e.g. .java

Returns:

input stream for file on class path

Throws:

java.io.IOException

getResourceAsStream

public java.io.InputStream getResourceAsStream(java.lang.String name)

Parameters:

name - fully qualified resource name, e.g. java/lang/String.class

Returns:

InputStream supplying the resource, or null if no resource with that name.

Since:

6.0

getResource

public java.net.URL getResource(java.lang.String name)

Parameters:

name - fully qualified resource name, e.g. java/lang/String.class

Returns:

URL supplying the resource, or null if no resource with that name.

Since:

6.0

getResources

public java.util.Enumeration<java.net.URL> getResources(java.lang.String name)

Parameters:

name - fully qualified resource name, e.g. java/lang/String.class

Returns:

An Enumeration of URLs supplying the resource, or an empty Enumeration if no resource with that name.

Since:

6.0

getClassFile

public ClassPath.ClassFile getClassFile(java.lang.String name,
                                        java.lang.String suffix)
                                 throws java.io.IOException

Parameters:

name - fully qualified file name, e.g. java/lang/String

suffix - file name ends with suff, e.g. .java

Returns:

class file for the java class

Throws:

java.io.IOException

getClassFileInternal

private ClassPath.ClassFile getClassFileInternal(java.lang.String name,
                                                 java.lang.String suffix)
                                          throws java.io.IOException

Throws:

java.io.IOException

getClassFile

public ClassPath.ClassFile getClassFile(java.lang.String name)
                                 throws java.io.IOException

Parameters:

name - fully qualified class name, e.g. java.lang.String

Returns:

input stream for class

Throws:

java.io.IOException

getBytes

public byte[] getBytes(java.lang.String name,
                       java.lang.String suffix)
                throws java.io.IOException

Parameters:

name - fully qualified file name, e.g. java/lang/String

suffix - file name ends with suffix, e.g. .java

Returns:

byte array for file on class path

Throws:

java.io.IOException

getBytes

public byte[] getBytes(java.lang.String name)
                throws java.io.IOException

Returns:

byte array for class

Throws:

java.io.IOException

getPath

public java.lang.String getPath(java.lang.String name)
                         throws java.io.IOException

Parameters:

name - name of file to search for, e.g. java/lang/String.java

Returns:

full (canonical) path for file

Throws:

java.io.IOException

getPath

public java.lang.String getPath(java.lang.String name,
                                java.lang.String suffix)
                         throws java.io.IOException

Parameters:

name - name of file to search for, e.g. java/lang/String

suffix - file name suffix, e.g. .java

Returns:

full (canonical) path for file, if it exists

Throws:

java.io.IOException