| Constructor and Description | 
|---|
| ZipUtil() | 
| Modifier and Type | Method and Description | 
|---|---|
| static long | adjustToLong(int i)Assumes a negative integer really is a positive integer that
 has wrapped around and re-creates the original value. | 
| static long | dosToJavaTime(long dosTime)Converts DOS time to Java time (number of milliseconds since
 epoch). | 
| static Date | fromDosTime(ZipLong zipDosTime)Convert a DOS date/time field to a Date object. | 
| static byte[] | reverse(byte[] array)Reverses a byte[] array. | 
| static int | signedByteToUnsignedInt(byte b)Converts a signed byte into an unsigned integer representation
 (e.g., -1 becomes 255). | 
| static ZipLong | toDosTime(Date time)Convert a Date object to a DOS date/time field. | 
| static byte[] | toDosTime(long t)Convert a Date object to a DOS date/time field. | 
| static void | toDosTime(long t,
         byte[] buf,
         int offset)Convert a Date object to a DOS date/time field. | 
| static byte | unsignedIntToSignedByte(int i)Converts an unsigned integer to a signed byte (e.g., 255 becomes -1). | 
public ZipUtil()
public static ZipLong toDosTime(Date time)
time - the Date to convertZipLongpublic static byte[] toDosTime(long t)
Stolen from InfoZip's fileio.c
t - number of milliseconds since the epochpublic static void toDosTime(long t, byte[] buf, int offset)
Stolen from InfoZip's fileio.c
t - number of milliseconds since the epochbuf - the output bufferoffset - The offset within the output buffer of the first byte to be written.
         must be non-negative and no larger than buf.length-4public static long adjustToLong(int i)
i - the value to treat as unsigned int.public static byte[] reverse(byte[] array)
array - to reverse (mutated in-place, but also returned for
        convenience).public static int signedByteToUnsignedInt(byte b)
b - byte to convert to intpublic static byte unsignedIntToSignedByte(int i)
i - integer to convert to byteIllegalArgumentException - if the provided integer is not inside the range [0,255].public static Date fromDosTime(ZipLong zipDosTime)
zipDosTime - contains the stored DOS time.public static long dosToJavaTime(long dosTime)
dosTime - time to convertCopyright © 2018 The Apache Software Foundation. All rights reserved.