com.calincosma.argsparser

Class Parser

java.lang.Object

com.calincosma.argsparser.Parser

public class Parser
extends Object

The Parser class is responsible for processing command line arguments passed to a Java application and setting them as fields of a given POJO. The fields must have been annotated with the Arg annotation. The parser supports the following types:

• String
• Integer
• int
• Long
• long
• Double
• double
• Float
• float
• Short
• short
• Boolean
• boolean
• File
• Path
• collections (lists, sets, queues)
• maps
• arrays of all known types (not arrays of collections/maps/arrays)
• enums
• any type that has a static method called valueOf(String s) which returns that type; this includes custom, user defined types

The POJO must have a no argument constructor. If for any reason the parsing of arguments fails, a ArgsParserException is thrown. Usage examples can be seen in the ParserTest class.

Method Summary

Modifier and Type	Method and Description
static Parser	getInstance()
<ARGS> ARGS	parse(String[] argsArray, Class<ARGS> clazz) Parse the arguments in the argsArray and set them as fields of a POJO of type ARGS.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static Parser getInstance()

parse

public <ARGS> ARGS parse(String[] argsArray,
                         Class<ARGS> clazz)
                  throws ArgsParserException

Parse the arguments in the argsArray and set them as fields of a POJO of type ARGS. The POJO will be created and then the args set as fields.

Type Parameters:

ARGS -

Parameters:

argsArray -

clazz -

Returns:

new POJO of type ARGS, with the arguments as fields

Throws:

ArgsParserException