com.jguild.jrpm.io
Class RPMHeader

java.lang.Object
  com.jguild.jrpm.io.Header
      com.jguild.jrpm.io.RPMHeader

public class RPMHeader

extends Header

RPM Header.

Version:

$Id: RPMHeader.java,v 1.7 2004/09/09 09:52:48 pnasrat Exp $

Field Summary

Fields inherited from class com.jguild.jrpm.io.Header

size

Constructor Summary

RPMHeader(java.io.DataInputStream inputStream)
Creates a new RPMHeader object out of an input stream.

RPMHeader(java.io.DataInputStream inputStream, boolean raw)

Method Summary

static java.lang.String[]	getKnownTagNames() Read all known tag names for this header structure.
long	getTagIdForName(java.lang.String tagname) Read a tag with a given tag name.
java.lang.String	getTagNameForId(long tagid) Read a tag with a given tag id.
boolean	isValidTag(long tagid) Test if the given tagid is associated with a valid tag
boolean	isValidTag(java.lang.String tagname) Test if the given tagname is associated with a valid tag

Methods inherited from class com.jguild.jrpm.io.Header

getSize, getTag, getTag, getTag, getTagIds, getTagNames, setTag, setTag, setTag

Methods inherited from class java.lang.Object

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

Constructor Detail

RPMHeader

public RPMHeader(java.io.DataInputStream inputStream)
          throws java.io.IOException

Creates a new RPMHeader object out of an input stream.

Parameters:

inputStream - The input stream

Throws:

java.io.IOException - if an error occured during read of the rpm

RPMHeader

public RPMHeader(java.io.DataInputStream inputStream,
                 boolean raw)
          throws java.io.IOException

Method Detail

getKnownTagNames

public static java.lang.String[] getKnownTagNames()

Description copied from class: Header

Read all known tag names for this header structure.

getTagIdForName

public long getTagIdForName(java.lang.String tagname)

Description copied from class: Header

Read a tag with a given tag name. The tag will be read out of the class defined in getTagEnum().

Specified by:

getTagIdForName in class Header

Parameters:

tagname - A RPM tag name

Returns:

The id of the RPM tag

getTagNameForId

public java.lang.String getTagNameForId(long tagid)

Description copied from class: Header

Read a tag with a given tag id. The tag will be read out of the class defined in getTagEnum().

Specified by:

getTagNameForId in class Header

Parameters:

tagid - A RPM tag id

Returns:

The name of the RPM tag

isValidTag

public boolean isValidTag(long tagid)

Description copied from class: Header

Test if the given tagid is associated with a valid tag

Specified by:

isValidTag in class Header

Parameters:

tagid - The id of a tag

Returns:

TRUE if the tagid is valid

isValidTag

public boolean isValidTag(java.lang.String tagname)

Description copied from class: Header

Test if the given tagname is associated with a valid tag

Specified by:

isValidTag in class Header

Parameters:

tagname - The name of a tag

Returns:

TRUE if the tagname is valid