Class Segment

java.lang.Object

org.objectweb.asm.ClassVisitor

org.apache.commons.compress.harmony.pack200.Segment

public class Segment
extends org.objectweb.asm.ClassVisitor

A Pack200 archive consists of one or more Segments.

Format:

  pack200_archive:
     (pack200_segment)+

  pack200_segment:
     segment_header
     *band_headers :BYTE1
     cp_bands
     attr_definition_bands
     ic_bands
     class_bands
     bc_bands
     file_bands

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	Segment.ArrayVisitor
static class	Segment.PassException	Exception indicating that the class currently being visited contains an unknown attribute, which means that by default the class file needs to be passed through as-is in the file_bands rather than being packed with pack200.
class	Segment.SegmentAnnotationVisitor	SegmentAnnotationVisitor implements AnnotationVisitor to visit Annotations found in a class file.
class	Segment.SegmentFieldVisitor	SegmentFieldVisitor implements FieldVisitor to visit the metadata relating to fields in a class file.
class	Segment.SegmentMethodVisitor	This class implements MethodVisitor to visit the contents and metadata related to methods in a class file.

Field Summary

Fields

Modifier and Type	Field	Description
static int	ASM_API	See https://asm.ow2.io/Javadoc/org/objectweb/asm/Opcodes.html#ASM4

Fields inherited from class org.objectweb.asm.ClassVisitor

api, cv

Constructor Summary

Constructors

Constructor	Description
Segment()

Method Summary

Modifier and Type	Method	Description
AttributeDefinitionBands	getAttrBands()
ClassBands	getClassBands()
CpBands	getCpBands()
Pack200ClassReader	getCurrentClassReader()
IcBands	getIcBands()
SegmentHeader	getSegmentHeader()
boolean	lastConstantHadWideIndex()
void	pack(org.apache.commons.compress.harmony.pack200.Archive.SegmentUnit segmentUnit, OutputStream out, PackingOptions options)	The main method on Segment.
void	visit(int version, int access, String name, String signature, String superName, String[] interfaces)
org.objectweb.asm.AnnotationVisitor	visitAnnotation(String desc, boolean visible)
void	visitAttribute(org.objectweb.asm.Attribute attribute)
void	visitEnd()
org.objectweb.asm.FieldVisitor	visitField(int flags, String name, String desc, String signature, Object value)
void	visitInnerClass(String name, String outerName, String innerName, int flags)
org.objectweb.asm.MethodVisitor	visitMethod(int flags, String name, String desc, String signature, String[] exceptions)
void	visitOuterClass(String owner, String name, String desc)
void	visitSource(String source, String debug)

Methods inherited from class org.objectweb.asm.ClassVisitor

getDelegate, visitModule, visitNestHost, visitNestMember, visitPermittedSubclass, visitRecordComponent, visitTypeAnnotation

Methods inherited from class Object

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

Field Details

ASM_API

public static int ASM_API

See https://asm.ow2.io/Javadoc/org/objectweb/asm/Opcodes.html#ASM4

Constructor Details

Segment

public Segment()

Method Details

getAttrBands

public AttributeDefinitionBands getAttrBands()

getClassBands

public ClassBands getClassBands()

getCpBands

public CpBands getCpBands()

getCurrentClassReader

public Pack200ClassReader getCurrentClassReader()

getIcBands

public IcBands getIcBands()

getSegmentHeader

public SegmentHeader getSegmentHeader()

lastConstantHadWideIndex

public boolean lastConstantHadWideIndex()

pack

public void pack(org.apache.commons.compress.harmony.pack200.Archive.SegmentUnit segmentUnit,
 OutputStream out,
 PackingOptions options)
          throws IOException,
Pack200Exception

The main method on Segment. Reads in all the class files, packs them and then writes the packed segment out to the given OutputStream.

Parameters:

segmentUnit - TODO

out - the OutputStream to write the packed Segment to.

options - packing options.

Throws:

IOException - If an I/O error occurs.

Pack200Exception - If a Pack200 semantic error occurs.

visit

public void visit(int version,
 int access,
 String name,
 String signature,
 String superName,
 String[] interfaces)

Overrides:

visit in class org.objectweb.asm.ClassVisitor

visitAnnotation

public org.objectweb.asm.AnnotationVisitor visitAnnotation(String desc,
 boolean visible)

Overrides:

visitAnnotation in class org.objectweb.asm.ClassVisitor

visitAttribute

public void visitAttribute(org.objectweb.asm.Attribute attribute)

Overrides:

visitAttribute in class org.objectweb.asm.ClassVisitor

visitEnd

public void visitEnd()

Overrides:

visitEnd in class org.objectweb.asm.ClassVisitor

visitField

public org.objectweb.asm.FieldVisitor visitField(int flags,
 String name,
 String desc,
 String signature,
 Object value)

Overrides:

visitField in class org.objectweb.asm.ClassVisitor

visitInnerClass

public void visitInnerClass(String name,
 String outerName,
 String innerName,
 int flags)

Overrides:

visitInnerClass in class org.objectweb.asm.ClassVisitor

visitMethod

public org.objectweb.asm.MethodVisitor visitMethod(int flags,
 String name,
 String desc,
 String signature,
 String[] exceptions)

Overrides:

visitMethod in class org.objectweb.asm.ClassVisitor

visitOuterClass

public void visitOuterClass(String owner,
 String name,
 String desc)

Overrides:

visitOuterClass in class org.objectweb.asm.ClassVisitor

visitSource

public void visitSource(String source,
 String debug)

Overrides:

visitSource in class org.objectweb.asm.ClassVisitor