com.brambolt.gradle.util

Class Optionals

java.lang.Object

com.brambolt.gradle.util.Optionals

public class Optionals
extends java.lang.Object

Utilities for working with optionals.

Constructor Summary

Constructors

Constructor and Description
Optionals()

Method Summary

Modifier and Type	Method and Description
static java.util.Optional<java.lang.String>	optional(java.util.List<java.util.Optional<java.lang.String>> segments, java.lang.String separator) Converts a list of optional string segments into a joined optional.
static java.util.Optional<java.lang.String>	optional(org.gradle.api.Project project, java.lang.String propertyName) Wraps the project property identified by the parameter property name in a string optional, iff the property is present and has a non-empty string representation.
static java.util.Optional<java.lang.String>	optional(java.lang.String value) Converts the parameter string value into a string optional that is empty iff the parameter is null, empty or white space.

Methods inherited from class java.lang.Object

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

Constructor Detail

Optionals

public Optionals()

Method Detail

optional

public static java.util.Optional<java.lang.String> optional(java.lang.String value)

Converts the parameter string value into a string optional that is empty iff the parameter is null, empty or white space.

Parameters:

value - The string to convert

Returns:

An optional holding the value iff it is a non-empty string

optional

public static java.util.Optional<java.lang.String> optional(org.gradle.api.Project project,
                                                            java.lang.String propertyName)

Wraps the project property identified by the parameter property name in a string optional, iff the property is present and has a non-empty string representation. The toString method is invoked on the property value to convert to string.

Parameters:

project - The project to locate the property value for

propertyName - The property name to look up

Returns:

An optional holding the property value iff it converts to a non-empty string

optional

public static java.util.Optional<java.lang.String> optional(java.util.List<java.util.Optional<java.lang.String>> segments,
                                                            java.lang.String separator)

Converts a list of optional string segments into a joined optional.

The non-empty segments from the parameter list are joined using the parameter separator. The empty segments are omitted.

If every parameter segment is empty then the result is empty.

Parameters:

segments - The segments to join

separator - The string separator to insert between the non-empty segments

Returns:

The joined segments