gnu.javax.net.ssl.provider
Class Util
A collection of useful class methods.
static byte[] | concat(byte[] b1, byte[] b2)- Concatenate two byte arrays into one.
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static String | formatInt(int i, int radix, int len)- Format an integer into the specified radix, zero-filled.
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static String | hexDump(byte[] buf)- See
hexDump(byte[],int,int,String).
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static String | hexDump(byte[] buf, int off, int len)- See
hexDump(byte[],int,int,String).
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static String | hexDump(byte[] buf, int off, int len, String prefix)- Create a representation of the given byte array similar to the
output of
`hexdump -C', which is
OFFSET SIXTEEN-BYTES-IN-HEX PRINTABLE-BYTES
The printable bytes show up as-is if they are printable and
not a newline character, otherwise showing as '.'.
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static String | hexDump(byte[] buf, String prefix)- See
hexDump(byte[],int,int,String).
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static String | hexDump(ByteBuffer buf)
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static String | hexDump(ByteBuffer buf, String prefix)
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static byte[] | toByteArray(String hex)- Convert a hexadecimal string into its byte representation.
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static String | toHexString(byte[] buf)- See
toHexString(byte[],int,int).
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static String | toHexString(byte[] buf, char sep)- See
toHexString(byte[],int,int,char).
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static String | toHexString(byte[] buf, int off, int len)- Convert a byte array to a hexadecimal string, as though it were a
big-endian arbitrarily-sized integer.
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static String | toHexString(byte[] buf, int off, int len, char sep)- Convert a byte array to a hexadecimal string, separating octets
with the given character.
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static byte[] | trim(byte[] buffer, int len)- See
trim(byte[],int,int).
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static byte[] | trim(byte[] buffer, int off, int len)- Returns a portion of a byte array, possibly zero-filled.
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static byte[] | trim(BigInteger bi)- Returns the byte array representation of the given big integer with
the leading zero byte (if any) trimmed off.
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static int | unixTime()- Returns the integer value of
System.currentTimeMillis() / 1000
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static Object | wrapBuffer(ByteBuffer buffer)
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static Object | wrapBuffer(ByteBuffer buffer, String prefix)
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clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait |
concat
public static byte[] concat(byte[] b1,
byte[] b2) Concatenate two byte arrays into one.
b1 - The first byte array.b2 - The second byte array.
- The concatenation of b1 and b2.
formatInt
public static String formatInt(int i,
int radix,
int len) Format an integer into the specified radix, zero-filled.
i - The integer to format.radix - The radix to encode to.len - The target length of the string. The string is
zero-padded to this length, but may be longer.
hexDump
public static String hexDump(byte[] buf,
int off,
int len)
hexDump
public static String hexDump(byte[] buf,
int off,
int len,
String prefix) Create a representation of the given byte array similar to the
output of
`hexdump -C', which is
OFFSET SIXTEEN-BYTES-IN-HEX PRINTABLE-BYTES
The printable bytes show up as-is if they are printable and
not a newline character, otherwise showing as '.'.
buf - The bytes to format.off - The offset to start at.len - The number of bytes to encode.prefix - A string to prepend to every line.
toByteArray
public static byte[] toByteArray(String hex)
Convert a hexadecimal string into its byte representation.
hex - The hexadecimal string.
toHexString
public static String toHexString(byte[] buf,
int off,
int len) Convert a byte array to a hexadecimal string, as though it were a
big-endian arbitrarily-sized integer.
buf - The bytes to format.off - The offset to start at.len - The number of bytes to format.
- A hexadecimal representation of the specified bytes.
toHexString
public static String toHexString(byte[] buf,
int off,
int len,
char sep) Convert a byte array to a hexadecimal string, separating octets
with the given character.
buf - The bytes to format.off - The offset to start at.len - The number of bytes to format.sep - The character to insert between octets.
- A hexadecimal representation of the specified bytes.
trim
public static byte[] trim(byte[] buffer,
int len)
trim
public static byte[] trim(byte[] buffer,
int off,
int len) Returns a portion of a byte array, possibly zero-filled.
buffer - The byte array to trim.off - The offset to begin reading at.len - The number of bytes to return. This value can be larger
than buffer.length - off, in which case the rest of the
returned byte array will be filled with zeros.
trim
public static byte[] trim(BigInteger bi)
Returns the byte array representation of the given big integer with
the leading zero byte (if any) trimmed off.
bi - The integer to trim.
- The byte representation of the big integer, with any leading
zero removed.
unixTime
public static int unixTime()
- The current time, in seconds.
Util.java -- Miscellaneous utility methods.
Copyright (C) 2006 Free Software Foundation, Inc.
This file is a part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at
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WITHOUT ANY WARRANTY; without even the implied warranty of
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