org.xbill.DNS

Class TTL

java.lang.Object

org.xbill.DNS.TTL

public final class TTL
extends java.lang.Object

Routines for parsing BIND-style TTL values. These values consist of numbers followed by 1 letter units of time (W - week, D - day, H - hour, M - minute, S - second).

Field Summary

Fields

Modifier and Type	Field and Description
static long	MAX_VALUE

Constructor Summary

Constructors

Modifier	Constructor and Description
private	TTL()

Method Summary

Modifier and Type	Method and Description
(package private) static void	check(long i)
static java.lang.String	format(long ttl)
static long	parse(java.lang.String s, boolean clamp) Parses a TTL-like value, which can either be expressed as a number or a BIND-style string with numbers and units.
static long	parseTTL(java.lang.String s) Parses a TTL, which can either be expressed as a number or a BIND-style string with numbers and units.

Methods inherited from class java.lang.Object

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

Field Detail

MAX_VALUE

public static final long MAX_VALUE

See Also:

Constant Field Values

Constructor Detail

TTL

private TTL()

Method Detail

check

static void check(long i)

parse

public static long parse(java.lang.String s,
                         boolean clamp)

Parses a TTL-like value, which can either be expressed as a number or a BIND-style string with numbers and units.

Parameters:

s - The string representing the numeric value.

clamp - Whether to clamp values in the range [MAX_VALUE + 1, 2^32 -1] to MAX_VALUE. This should be donw for TTLs, but not other values which can be expressed in this format.

Returns:

The value as a number of seconds

Throws:

java.lang.NumberFormatException - The string was not in a valid TTL format.

parseTTL

public static long parseTTL(java.lang.String s)

Parses a TTL, which can either be expressed as a number or a BIND-style string with numbers and units.

Parameters:

s - The string representing the TTL

Returns:

The TTL as a number of seconds

Throws:

java.lang.NumberFormatException - The string was not in a valid TTL format.

format

public static java.lang.String format(long ttl)