org.freecompany.redline.payload
Class CpioHeader

java.lang.Object
  org.freecompany.redline.payload.CpioHeader

public class CpioHeader
extends Object

This class provides a means to read file content from the compressed CPIO stream that is the body of an RPM distributable. Iterative calls to to read header will result in a header description being returned which includes a count of how many bytes to read from the channel for the file content.

Field Summary

static int	BDEV
static int	CDEV
protected Charset	charset
protected int	checksum
protected static int	CPIO_HEADER
static int	DEFAULT_DIRECTORY_PERMISSION
static int	DEFAULT_FILE_PERMISSION
static String	DEFAULT_GROUP
static String	DEFAULT_USERNAME
protected int	devMajor
protected int	devMinor
static int	DIR
static int	FIFO
static int	FILE
protected int	filesize
protected int	flags
protected int	gid
protected String	gname
protected int	inode
protected static String	MAGIC
protected long	mtime
protected String	name
protected int	nlink
protected int	permissions
protected int	rdevMajor
protected int	rdevMinor
static int	SOCKET
static int	SYMLINK
protected static String	TRAILER
protected int	type
protected int	uid
protected String	uname

Constructor Summary

CpioHeader()

CpioHeader(File file)

CpioHeader(String name)

CpioHeader(String name, File file)

CpioHeader(String name, URL url)

Method Summary

int	getDevMajor()
int	getDevMinor()
int	getFileSize()
int	getFlags()
String	getGname()
int	getInode()
int	getMode()
int	getMtime()
String	getName()
int	getPermissions()
int	getRdevMajor()
int	getRdevMinor()
int	getType()
String	getUname()
boolean	isLast() Test to see if this is the last header, and is therefore the end of the archive.
protected String	pad(CharSequence sequence, int length)
int	read(ReadableByteChannel channel, int total)
protected CharSequence	readChars(CharBuffer buffer, int length)
protected int	readEight(CharBuffer buffer)
protected CharSequence	readSix(CharBuffer buffer)
void	setFileSize(int filesize)
void	setFlags(int flags)
void	setGname(String gname)
void	setInode(int inode)
void	setLast()
void	setMtime(long mtime)
void	setName(String name)
void	setPermissions(int permissions)
void	setType(int type)
void	setUname(String uname)
protected int	skip(ReadableByteChannel channel, int total)
int	skip(WritableByteChannel channel, int total)
String	toString()
int	write(WritableByteChannel channel, int total) Writed the content for the CPIO header, including the name immediately following.
protected ByteBuffer	writeEight(int data)
protected ByteBuffer	writeSix(CharSequence data)

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_FILE_PERMISSION

public static final int DEFAULT_FILE_PERMISSION

See Also:

Constant Field Values

DEFAULT_DIRECTORY_PERMISSION

public static final int DEFAULT_DIRECTORY_PERMISSION

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Constant Field Values

DEFAULT_USERNAME

public static final String DEFAULT_USERNAME

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Constant Field Values

DEFAULT_GROUP

public static final String DEFAULT_GROUP

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Constant Field Values

FIFO

public static final int FIFO

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Constant Field Values

CDEV

public static final int CDEV

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Constant Field Values

DIR

public static final int DIR

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Constant Field Values

BDEV

public static final int BDEV

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Constant Field Values

FILE

public static final int FILE

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Constant Field Values

SYMLINK

public static final int SYMLINK

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Constant Field Values

SOCKET

public static final int SOCKET

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Constant Field Values

CPIO_HEADER

protected static final int CPIO_HEADER

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Constant Field Values

MAGIC

protected static final String MAGIC

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Constant Field Values

TRAILER

protected static final String TRAILER

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Constant Field Values

charset

protected Charset charset

inode

protected int inode

type

protected int type

permissions

protected int permissions

uid

protected int uid

uname

protected String uname

gid

protected int gid

gname

protected String gname

nlink

protected int nlink

mtime

protected long mtime

filesize

protected int filesize

devMinor

protected int devMinor

devMajor

protected int devMajor

rdevMinor

protected int rdevMinor

rdevMajor

protected int rdevMajor

checksum

protected int checksum

name

protected String name

flags

protected int flags

Constructor Detail

CpioHeader

public CpioHeader()

CpioHeader

public CpioHeader(String name)

CpioHeader

public CpioHeader(File file)

CpioHeader

public CpioHeader(String name,
                  URL url)

CpioHeader

public CpioHeader(String name,
                  File file)

Method Detail

getType

public int getType()

getPermissions

public int getPermissions()

getRdevMajor

public int getRdevMajor()

getRdevMinor

public int getRdevMinor()

getDevMajor

public int getDevMajor()

getDevMinor

public int getDevMinor()

getMtime

public int getMtime()

getInode

public int getInode()

getName

public String getName()

getFlags

public int getFlags()

getMode

public int getMode()

setPermissions

public void setPermissions(int permissions)

setType

public void setType(int type)

setFileSize

public void setFileSize(int filesize)

setMtime

public void setMtime(long mtime)

setInode

public void setInode(int inode)

setFlags

public void setFlags(int flags)

getUname

public String getUname()

getGname

public String getGname()

setUname

public void setUname(String uname)

setGname

public void setGname(String gname)

isLast

public boolean isLast()

Test to see if this is the last header, and is therefore the end of the archive. Uses the CPIO magic trailer value to denote the last header of the stream.

setLast

public void setLast()

setName

public void setName(String name)

getFileSize

public int getFileSize()

writeSix

protected ByteBuffer writeSix(CharSequence data)

writeEight

protected ByteBuffer writeEight(int data)

readSix

protected CharSequence readSix(CharBuffer buffer)

readEight

protected int readEight(CharBuffer buffer)

readChars

protected CharSequence readChars(CharBuffer buffer,
                                 int length)

pad

protected String pad(CharSequence sequence,
                     int length)

skip

protected int skip(ReadableByteChannel channel,
                   int total)
            throws IOException

Throws:

IOException

skip

public int skip(WritableByteChannel channel,
                int total)
         throws IOException

Throws:

IOException

read

public int read(ReadableByteChannel channel,
                int total)
         throws IOException

Throws:

IOException

write

public int write(WritableByteChannel channel,
                 int total)
          throws IOException

Writed the content for the CPIO header, including the name immediately following. The name data is rounded to the nearest 2 byte boundary as CPIO requires by appending a null when needed.

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object