JarCastingunderscore-java
Requirements
Java 1.8 and later or Java 11.
Installation
Include the following in your pom.xml for Maven:
<dependencies>
<dependency>
<groupId>com.github.javadev</groupId>
<artifactId>underscore</artifactId>
<version>1.61</version>
</dependency>
...
</dependencies>
Gradle:
compile 'com.github.javadev:underscore:1.61'
Usage
U.chain(/* array | list | set | map | anything based on Iterable interface */)
.filter(..)
.map(..)
...
.sortWith()
.forEach(..);
U.chain(value1, value2, value3)...
U.range(0, 10)...
U.chain(1, 2, 3) // or java.util.Arrays.asList(1, 2, 3) or new Integer[] {1, 2, 3}
.filter(v -> v > 1)
// 2, 3
.map(v -> v + 1)
// 3, 4
.sortWith((a, b) -> b.compareTo(a))
// 4, 3
.forEach(System.out::println);
// 4, 3
U.formatXml("<a><b>data</b></a>");
// <a>
// <b>data</b>
// </a>
U.formatJson("{\"a\":{\"b\":\"data\"}}");
// {
// "a": {
// "b": "data"
// }
// }
U.xmlToJson("<a><b>data</b></a>");
// {
// "a": {
// "b": "data"
// },
// "#omit-xml-declaration": "yes"
// }
U.jsonToXml("{\"a\":{\"b\":\"data\"}}");
// <?xml version="1.0" encoding="UTF-8"?>
// <a>
// <b>data</b>
// </a>
Map<String, Object> value = U.objectBuilder()
.add("firstName", "John")
.add("lastName", "Smith")
.add("age", 25)
.add("address", U.arrayBuilder()
.add(U.objectBuilder()
.add("streetAddress", "21 2nd Street")
.add("city", "New York")
.add("state", "NY")
.add("postalCode", "10021")))
.add("phoneNumber", U.arrayBuilder()
.add(U.objectBuilder()
.add("type", "home")
.add("number", "212 555-1234"))
.add(U.objectBuilder()
.add("type", "fax")
.add("number", "646 555-4567")))
.build();
// {firstName=John, lastName=Smith, age=25, address=[{streetAddress=21 2nd Street,
// city=New York, state=NY, postalCode=10021}], phoneNumber=[{type=home, number=212 555-1234},
// {type=fax, number=646 555-4567}]}
Underscore-java is a java port of Underscore.js.
In addition to porting Underscore's functionality, Underscore-java includes matching unit tests.
For docs, license, tests, and downloads, see: https://javadev.github.io/underscore-java
Thanks to Jeremy Ashkenas and all contributors to Underscore.js.