Package org.apache.commons.compress.compressors.gzip

Class ExtraField.SubField

java.lang.Object
org.apache.commons.compress.compressors.gzip.ExtraField.SubField
Enclosing class:
ExtraField
public static final class ExtraField.SubField extends Object
If the FLG.FEXTRA bit is set, an "extra field" is present in the header, with total length XLEN bytes. It consists of a series of subfields, each of the form: 
 +---+---+---+---+==================================+
 |SI1|SI2|  LEN  |... LEN bytes of subfield data ...|
 +---+---+---+---+==================================+

The reserved IDs are: 

 SI1         SI2         Data
 ----------  ----------  ----
 0x41 ('A')  0x70 ('P')  Apollo file type information

Subfield IDs with SI2 = 0 are reserved for future use.

LEN gives the length of the subfield data, excluding the 4 initial bytes.

See Also:

  • Method Details

    • equals

      public boolean equals(Object obj)
      Overrides:
      equals in class Object

    • getId

      public String getId()
      The 2 character ISO-8859-1 string made from the si1 and si2 bytes of the sub field id.
      Returns:
      Two character ID.

    • getPayload

      public byte[] getPayload()
      The subfield payload.
      Returns:
      The payload.

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object