Package com.yahoo.search.query

Class ParameterParser

java.lang.Object

com.yahoo.search.query.ParameterParser

public class ParameterParser
extends Object

Wrapper class to avoid code duplication of common parsing requirements.

Author:

Steinar Knutsen

Constructor Summary

Constructors

Constructor	Description
ParameterParser()

Method Summary

Modifier and Type	Method	Description
static Long	asMilliSeconds(Object value, Long defaultValue)	Tries to return the given object as a Long.

Methods inherited from class java.lang.Object

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

Constructor Detail

ParameterParser

public ParameterParser()

Method Detail

asMilliSeconds

public static Long asMilliSeconds(Object value,
                                  Long defaultValue)

Tries to return the given object as a Long. If it is a Number, treat it as a number of seconds, i.e. get a Long representation and multiply by 1000. If it has a String representation, try to parse this as a floating point number, followed by by an optional unit (seconds and an SI prefix, a couple of valid examples are "s" and "ms". Only a very small subset of SI prefixes are supported). If no unit is given, seconds are assumed.

Parameters:

value - some representation of a number of seconds

defaultValue - returned if value is null

Returns:

value as a number of milliseconds

Throws:

NumberFormatException - if value is not a Number instance and its String representation cannot be parsed as a number followed optionally by time unit