JarCasting
my-java-utils
Set of Java utils that I take along with my OSS java projects. Most of them are influenced from Scala world and Guava library. Library has zero external dependencies. If you find some implementations can be better, please do let me know.
Features
List
- Lists#map
- Lists#filter
- Lists#foldL
- Lists#find
- Lists#mkString
- Lists#Nil
- Lists#concat
- Lists#flatten
- Lists#take
- Lists#takeWhile
Set
- Sets#copy
- Sets#isEmpty
- Sets#nonEmpty
Iterable
- Iterables#exists
- Iterables#forall
- Iterables#head
- Iterables#headOption
- Iterables#isEmpty
- Iterables#nonEmpty
- Iterables#toMap
- Iterables#foreach
Maps
- Maps#of
- Maps#builder
- Maps#empty
- Maps#getOrElse
Lang
- Option / Some / None
- Tuple2 / Tuple3
- Function
- Predicate
Functions
- Functions#identity
- Functions#STDOUT
- Functions#STDERR
Predicates
- Predicates#True
- Predicates#False
StringUtils
- StringUtils#isNotEmpty
- StringUtils#isEmpty
- StringUtils#startsWith
- StringUtils#endsWith
- StringUtils#size
- StringUtils#trim
- StringUtils#isBlank
- StringUtils#isNotBlank
IO
- IO#fromFile
- IO#linesFromFile
- IO#linesFromInputStream
Monadic Parsers
Parser<String> parser = Literal("input");
ParserResult<String> result = parser.parse("input is awesome"); // returns Success<String>
ParserResult<String> result = parser.parse("output is awesome"); // returns Failure<String>
Inspired from Scala's Parser Combinator and JS Parsimmon. Take a look at TemplateParser, it's implemented using this parser package.
Parsers
- Parsers#Literal
- Parsers#Character
- Parsers#Integer
- Parsers#Double
- Parsers#Regex
- Parsers#Sequence
Parser
- Parser#map
- Parser#thenR
- Parser#thenL
- Parser#then
- Parser#or
- Parser#debug
- Parser#skip
TemplateParser
Supports #{variable} and #{variable?default} type syntax based rendering. Inspired from sbt-editsource plugin.
Dependencies
For Maven,
<dependency>
<groupId>in.ashwanthkumar</groupId>
<artifactId>my-java-utils</artifactId>
<version>0.1.0</version>
</dependency>
For SBT,
libraryDependencies += "in.ashwanthkumar" % "my-java-utils" % "0.1.0"