com.alipay.sofa.ark.loader.jar

类 CentralDirectoryFileHeader

java.lang.Object

com.alipay.sofa.ark.loader.jar.CentralDirectoryFileHeader

public final class CentralDirectoryFileHeader
extends Object

A ZIP File "Central directory file header record" (CDFH).

作者:

Phillip Webb, Andy Wilkinson

另请参阅:

Zip File Format

构造器概要

构造器

构造器和说明
CentralDirectoryFileHeader()
CentralDirectoryFileHeader(byte[] header, int headerOffset, AsciiBytes name, byte[] extra, AsciiBytes comment, long localHeaderOffset)

方法概要

限定符和类型	方法和说明
CentralDirectoryFileHeader	clone()
static CentralDirectoryFileHeader	fromRandomAccessData(RandomAccessData data, int offset, JarEntryFilter filter)
AsciiBytes	getComment()
long	getCompressedSize() Return the compressed size of the entry.
long	getCrc()
byte[]	getExtra()
long	getLocalHeaderOffset() Return the offset of the load file header within the archive data.
int	getMethod() Return the method used to compress the data.
AsciiBytes	getName()
long	getSize() Return the uncompressed size of the entry.
long	getTime()
boolean	hasName(String name, String suffix) Returns true if the header has the given name.
boolean	isDirectory()
void	load(byte[] data, int dataOffset, RandomAccessData variableData, int variableOffset, JarEntryFilter filter)

从类继承的方法 java.lang.Object

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

构造器详细资料

CentralDirectoryFileHeader

public CentralDirectoryFileHeader()

CentralDirectoryFileHeader

public CentralDirectoryFileHeader(byte[] header,
                                  int headerOffset,
                                  AsciiBytes name,
                                  byte[] extra,
                                  AsciiBytes comment,
                                  long localHeaderOffset)

方法详细资料

load

public void load(byte[] data,
                 int dataOffset,
                 RandomAccessData variableData,
                 int variableOffset,
                 JarEntryFilter filter)
          throws IOException

抛出:

IOException

getName

public AsciiBytes getName()

hasName

public boolean hasName(String name,
                       String suffix)

Returns true if the header has the given name.

参数:

name - the name to test

suffix - an additional suffix (or null)

返回:

true if the header has the given name

isDirectory

public boolean isDirectory()

getMethod

public int getMethod()

Return the method used to compress the data.

返回:

the zip compression method

另请参阅:

ZipEntry.STORED, ZipEntry.DEFLATED

getTime

public long getTime()

getCrc

public long getCrc()

getCompressedSize

public long getCompressedSize()

Return the compressed size of the entry.

返回:

the compressed size.

getSize

public long getSize()

Return the uncompressed size of the entry.

返回:

the uncompressed size.

getExtra

public byte[] getExtra()

getComment

public AsciiBytes getComment()

getLocalHeaderOffset

public long getLocalHeaderOffset()

Return the offset of the load file header within the archive data.

返回:

the local header offset

clone

public CentralDirectoryFileHeader clone()

覆盖:

clone 在类中 Object

fromRandomAccessData

public static CentralDirectoryFileHeader fromRandomAccessData(RandomAccessData data,
                                                              int offset,
                                                              JarEntryFilter filter)
                                                       throws IOException

抛出:

IOException