Class Zip4jUtil

java.lang.Object

net.lingala.zip4j.util.Zip4jUtil

public class Zip4jUtil
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
private static final long	DOSTIME_BEFORE_1980
private static final int	MAX_RAW_READ_FULLY_RETRY_ATTEMPTS

Constructor Summary

Constructors

Constructor	Description
Zip4jUtil()

Method Summary

Modifier and Type	Method	Description
static byte[]	convertCharArrayToByteArray(char[] charArray, boolean useUtf8Charset)
private static byte[]	convertCharArrayToByteArrayUsingDefaultCharset(char[] charArray)
private static byte[]	convertCharArrayToByteArrayUsingUtf8(char[] charArray)
static boolean	createDirectoryIfNotExists(File file)
private static long	dosToEpochTime(long dosTime)
static long	dosToExtendedEpochTme(long dosTime)
private static long	epochToDosTime(long time)
static long	epochToExtendedDosTime(long time)
static CompressionMethod	getCompressionMethod(AbstractFileHeader localFileHeader)
static boolean	isStringNotNullAndNotEmpty(String str)
static boolean	isStringNullOrEmpty(String str)
static int	readFully(InputStream inputStream, byte[] bufferToReadInto)
static int	readFully(InputStream inputStream, byte[] b, int offset, int length)
private static int	readUntilBufferIsFull(InputStream inputStream, byte[] bufferToReadInto, int readLength)

Methods inherited from class Object

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

Field Details

DOSTIME_BEFORE_1980

private static final long DOSTIME_BEFORE_1980

See Also:

• Constant Field Values

MAX_RAW_READ_FULLY_RETRY_ATTEMPTS

private static final int MAX_RAW_READ_FULLY_RETRY_ATTEMPTS

See Also:

• Constant Field Values

Constructor Details

Zip4jUtil

public Zip4jUtil()

Method Details

isStringNullOrEmpty

public static boolean isStringNullOrEmpty(String str)

isStringNotNullAndNotEmpty

public static boolean isStringNotNullAndNotEmpty(String str)

createDirectoryIfNotExists

public static boolean createDirectoryIfNotExists(File file)
                                          throws ZipException

Throws:

ZipException

epochToExtendedDosTime

public static long epochToExtendedDosTime(long time)

epochToDosTime

private static long epochToDosTime(long time)

dosToExtendedEpochTme

public static long dosToExtendedEpochTme(long dosTime)

dosToEpochTime

private static long dosToEpochTime(long dosTime)

convertCharArrayToByteArray

public static byte[] convertCharArrayToByteArray(char[] charArray,
 boolean useUtf8Charset)

getCompressionMethod

public static CompressionMethod getCompressionMethod(AbstractFileHeader localFileHeader)
                                              throws ZipException

Throws:

ZipException

readFully

public static int readFully(InputStream inputStream,
 byte[] bufferToReadInto)
                     throws IOException

Throws:

IOException

readFully

public static int readFully(InputStream inputStream,
 byte[] b,
 int offset,
 int length)
                     throws IOException

Throws:

IOException

readUntilBufferIsFull

private static int readUntilBufferIsFull(InputStream inputStream,
 byte[] bufferToReadInto,
 int readLength)
                                  throws IOException

Throws:

IOException

convertCharArrayToByteArrayUsingUtf8

private static byte[] convertCharArrayToByteArrayUsingUtf8(char[] charArray)

convertCharArrayToByteArrayUsingDefaultCharset

private static byte[] convertCharArrayToByteArrayUsingDefaultCharset(char[] charArray)