Package org.apache.commons.compress.harmony.pack200

Class 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

      All Methods Instance Methods Concrete Methods 
      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, java.io.OutputStream out, PackingOptions options)
      The main method on Segment.
      void visit​(int version, int access, java.lang.String name, java.lang.String signature, java.lang.String superName, java.lang.String[] interfaces)  
      org.objectweb.asm.AnnotationVisitor visitAnnotation​(java.lang.String desc, boolean visible)  
      void visitAttribute​(org.objectweb.asm.Attribute attribute)  
      void visitEnd()  
      org.objectweb.asm.FieldVisitor visitField​(int flags, java.lang.String name, java.lang.String desc, java.lang.String signature, java.lang.Object value)  
      void visitInnerClass​(java.lang.String name, java.lang.String outerName, java.lang.String innerName, int flags)  
      org.objectweb.asm.MethodVisitor visitMethod​(int flags, java.lang.String name, java.lang.String desc, java.lang.String signature, java.lang.String[] exceptions)  
      void visitOuterClass​(java.lang.String owner, java.lang.String name, java.lang.String desc)  
      void visitSource​(java.lang.String source, java.lang.String debug)  

      • Methods inherited from class org.objectweb.asm.ClassVisitor

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

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • ASM_API

        public static int ASM_API
        See https://asm.ow2.io/Javadoc/org/objectweb/asm/Opcodes.html#ASM4

    • Constructor Detail

    • Method Detail

      • pack

        public void pack​(org.apache.commons.compress.harmony.pack200.Archive.SegmentUnit segmentUnit,
                 java.io.OutputStream out,
                 PackingOptions options)
          throws java.io.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:
        java.io.IOException - If an I/O error occurs.
        Pack200Exception - If a Pack200 semantic error occurs.

      • visit

        public void visit​(int version,
                  int access,
                  java.lang.String name,
                  java.lang.String signature,
                  java.lang.String superName,
                  java.lang.String[] interfaces)
        Overrides:
        visit in class org.objectweb.asm.ClassVisitor

      • visitAnnotation

        public org.objectweb.asm.AnnotationVisitor visitAnnotation​(java.lang.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,
                                                 java.lang.String name,
                                                 java.lang.String desc,
                                                 java.lang.String signature,
                                                 java.lang.Object value)
        Overrides:
        visitField in class org.objectweb.asm.ClassVisitor

      • visitInnerClass

        public void visitInnerClass​(java.lang.String name,
                            java.lang.String outerName,
                            java.lang.String innerName,
                            int flags)
        Overrides:
        visitInnerClass in class org.objectweb.asm.ClassVisitor

      • visitMethod

        public org.objectweb.asm.MethodVisitor visitMethod​(int flags,
                                                   java.lang.String name,
                                                   java.lang.String desc,
                                                   java.lang.String signature,
                                                   java.lang.String[] exceptions)
        Overrides:
        visitMethod in class org.objectweb.asm.ClassVisitor

      • visitOuterClass

        public void visitOuterClass​(java.lang.String owner,
                            java.lang.String name,
                            java.lang.String desc)
        Overrides:
        visitOuterClass in class org.objectweb.asm.ClassVisitor

      • visitSource

        public void visitSource​(java.lang.String source,
                        java.lang.String debug)
        Overrides:
        visitSource in class org.objectweb.asm.ClassVisitor