Class ListValueOptionParser<T>

java.lang.Object

com.github.rvesse.airline.parser.AbstractParser<T>

com.github.rvesse.airline.parser.options.AbstractOptionParser<T>

com.github.rvesse.airline.parser.options.ListValueOptionParser<T>

All Implemented Interfaces:

OptionParser<T>

Direct Known Subclasses:

MaybeListValueOptionParser

public class ListValueOptionParser<T>
extends AbstractOptionParser<T>

An options parser that requires the values to be a non-whitespace separated list

So for example --name foo,bar would be treated as the values foo and bar passed to the --name option. This parser differs from the StandardOptionParser in that the standard parser would treat foo,bar as a single value passed to the name option. This parser expects that the list it receives contains the correct number of items for the arity of the option, or an exact multiple thereof and if not produces an error

You can also omit the whitespace between the name and the value list when using a single character name of the option similar to how the ClassicGetOptParser works. For example -nfoo,bar is equivalent to our previous example assuming that -n is an alternative name for the same option as --name.

The default separator for values is , but this can be configured as desired.

Field Summary

Fields

Modifier and Type	Field	Description
private static final char	DEFAULT_SEPARATOR
private final char	separator

Constructor Summary

Constructors

Constructor	Description
ListValueOptionParser()
ListValueOptionParser(char separator)

Method Summary

Modifier and Type	Method	Description
protected final List<String>	getValues(String list)
ParseState<T>	parseOptions(org.apache.commons.collections4.iterators.PeekingIterator<String> tokens, ParseState<T> state, List<OptionMetadata> allowedOptions)	Parses one/more options from the token stream

Methods inherited from class AbstractOptionParser

findOption, findOption, hasShortNamePrefix, isSeparatorOrOption, noValueForOption

Methods inherited from class AbstractParser

getTypeConverter

Methods inherited from class Object

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

Field Details

DEFAULT_SEPARATOR

private static final char DEFAULT_SEPARATOR

See Also:

• Constant Field Values

separator

private final char separator

Constructor Details

ListValueOptionParser

public ListValueOptionParser()

ListValueOptionParser

public ListValueOptionParser(char separator)

Method Details

getValues

protected final List<String> getValues(String list)

parseOptions

public ParseState<T> parseOptions(org.apache.commons.collections4.iterators.PeekingIterator<String> tokens,
 ParseState<T> state,
 List<OptionMetadata> allowedOptions)

Description copied from interface: OptionParser

Parses one/more options from the token stream

Parameters:

tokens - Tokens

state - Current parser state

allowedOptions - Allowed options at this point of the parsing

Returns:

New parser state, may return null if this parser could not parse the next token as an option