com.j256.simplezip.format

Class ZipFileHeader

java.lang.Object

com.j256.simplezip.format.ZipFileHeader

public class ZipFileHeader
extends Object

Header of Zip file entries.

Author:

graywatson

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ZipFileHeader.Builder Builder for ZipFileHeader.

Constructor Summary

Constructors

Constructor and Description
ZipFileHeader(int versionNeeded, int generalPurposeFlags, int compressionMethod, int lastModifiedTime, int lastModifiedDate, long crc32, long compressedSize, long uncompressedSize, byte[] fileName, byte[] extraFieldBytes, Zip64ExtraField zip64ExtraField)

Method Summary

Modifier and Type	Method and Description
static ZipFileHeader.Builder	builder() Make a builder for this class.
long	getCompressedSize() Zip64ExtraField in the getExtraFieldBytes() that has the real compressed size.
int	getCompressionLevel() Read the compression level from the flags.
int	getCompressionMethod()
CompressionMethod	getCompressionMethodAsEnum()
long	getCrc32()
byte[]	getExtraFieldBytes()
String	getFileName()
byte[]	getFileNameBytes()
int	getGeneralPurposeFlags()
Set<GeneralPurposeFlag>	getGeneralPurposeFlagsAsEnums()
int	getLastModifiedDate()
String	getLastModifiedDateString() Return last modified date as a string in YYYY.mm.dd format.
java.time.LocalDateTime	getLastModifiedDateTime() Return last modified date and time as a LocalDateTime.
int	getLastModifiedTime()
String	getLastModifiedTimeString() Return last modified time as a string in 24-hour HH:MM:SS format.
long	getUncompressedSize() Get the 32-bit size of the uncompressed, original (unencoded) bytes.
int	getVersionNeeded()
int	getVersionNeededMajorMinor() Extract the version portion from the version-made information.
String	getVersionNeededMajorMinorString() Return the version needed in the from "#.#".
long	getZip64CompressedSize() Get the size of the compressed (encoded) bytes as encoded in the Zip64ExtraField which should be in the extraFieldBytes.
Zip64ExtraField	getZip64ExtraField() Returns the Zip64 extra field in the extra-bytes or null if none.
long	getZip64UncompressedSize() Get the size of the uncompressed (unencoded) bytes as encoded in the Zip64ExtraField which should be in the extraFieldBytes.
boolean	hasFlag(GeneralPurposeFlag flag) Return whether the header has this flag.
boolean	needsDataDescriptor() Does this file header need a data-descriptor.
static ZipFileHeader	read(RewindableInputStream inputStream) Read from the input stream.
String	toString()
void	write(OutputStream outputStream) Write to the input stream.

Methods inherited from class java.lang.Object

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

Constructor Detail

ZipFileHeader

public ZipFileHeader(int versionNeeded,
                     int generalPurposeFlags,
                     int compressionMethod,
                     int lastModifiedTime,
                     int lastModifiedDate,
                     long crc32,
                     long compressedSize,
                     long uncompressedSize,
                     byte[] fileName,
                     byte[] extraFieldBytes,
                     Zip64ExtraField zip64ExtraField)

Method Detail

builder

public static ZipFileHeader.Builder builder()

Make a builder for this class.

read

public static ZipFileHeader read(RewindableInputStream inputStream)
                          throws IOException

Read from the input stream.

Throws:

IOException

write

public void write(OutputStream outputStream)
           throws IOException

Write to the input stream.

Throws:

IOException

hasFlag

public boolean hasFlag(GeneralPurposeFlag flag)

Return whether the header has this flag.

getVersionNeeded

public int getVersionNeeded()

getVersionNeededMajorMinor

public int getVersionNeededMajorMinor()

Extract the version portion from the version-made information.

getVersionNeededMajorMinorString

public String getVersionNeededMajorMinorString()

Return the version needed in the from "#.#".

getGeneralPurposeFlags

public int getGeneralPurposeFlags()

getGeneralPurposeFlagsAsEnums

public Set<GeneralPurposeFlag> getGeneralPurposeFlagsAsEnums()

getCompressionLevel

public int getCompressionLevel()

Read the compression level from the flags.

getCompressionMethod

public int getCompressionMethod()

getCompressionMethodAsEnum

public CompressionMethod getCompressionMethodAsEnum()

getLastModifiedTime

public int getLastModifiedTime()

getLastModifiedTimeString

public String getLastModifiedTimeString()

Return last modified time as a string in 24-hour HH:MM:SS format.

getLastModifiedDate

public int getLastModifiedDate()

getLastModifiedDateString

public String getLastModifiedDateString()

Return last modified date as a string in YYYY.mm.dd format.

getLastModifiedDateTime

public java.time.LocalDateTime getLastModifiedDateTime()

Return last modified date and time as a LocalDateTime.

getCrc32

public long getCrc32()

getCompressedSize

public long getCompressedSize()

Zip64ExtraField in the getExtraFieldBytes() that has the real compressed size. See getZip64CompressedSize().

getZip64CompressedSize

public long getZip64CompressedSize()

Get the size of the compressed (encoded) bytes as encoded in the Zip64ExtraField which should be in the extraFieldBytes. If there is no extra field then the value of the getCompressedSize() is returned.

getUncompressedSize

public long getUncompressedSize()

Get the 32-bit size of the uncompressed, original (unencoded) bytes. This may return 0xFFFFFFFF to indicate that there is a Zip64ExtraField in the getExtraFieldBytes() that has the real compressed size. See getZip64UncompressedSize().

getZip64UncompressedSize

public long getZip64UncompressedSize()

Get the size of the uncompressed (unencoded) bytes as encoded in the Zip64ExtraField which should be in the extraFieldBytes. If there is no extra field then the value of the getUncompressedSize() is returned.

getFileNameBytes

public byte[] getFileNameBytes()

getFileName

public String getFileName()

getExtraFieldBytes

public byte[] getExtraFieldBytes()

getZip64ExtraField

public Zip64ExtraField getZip64ExtraField()

Returns the Zip64 extra field in the extra-bytes or null if none.

needsDataDescriptor

public boolean needsDataDescriptor()

Does this file header need a data-descriptor.

toString

public String toString()

Overrides:

toString in class Object