com.cybozu.labs.langdetect

Class CommandLineInterface

java.lang.Object

com.cybozu.labs.langdetect.CommandLineInterface

public class CommandLineInterface
extends java.lang.Object

LangDetect Command Line Interface.

This is a command line interface of Language Detection Library "LangDetect".

Renamed: this class was previously known as "Command".

TODO after my recent changes switching to the new Detector this code is untested. -Fabian

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.List<java.lang.String>	arglist
private static double	DEFAULT_ALPHA smoothing default parameter (ELE)
private java.util.Map<java.lang.String,java.lang.String>	opt_with_value for Command line easy parser
private java.util.Set<java.lang.String>	opt_without_value
private java.util.Map<java.lang.String,java.lang.String>	values

Constructor Summary

Constructors

Constructor and Description
CommandLineInterface()

Method Summary

Modifier and Type	Method and Description
private void	addOpt(java.lang.String opt, java.lang.String key, java.lang.String value)
void	batchTest() Batch Test of Language Detection (--batchtest option)
void	detectLang() Language detection test for each file (--detectlang option)
void	generateProfile() Generate Language Profile from a text file.
private double	getParamDouble(java.lang.String key, double defaultValue) Returns the double, or the default is absent.
private @Nullable java.lang.Long	getParamLongOrNull(java.lang.String key)
private boolean	hasParam(java.lang.String opt)
static void	main(java.lang.String[] args) Command Line Interface
private LanguageDetector	makeDetector() Using all language profiles from the given directory.
private void	parse(java.lang.String[] args) Command line easy parser
private @NotNull java.lang.String	requireParamString(@NotNull java.lang.String key)
private java.io.File	searchFile(java.io.File directory, java.lang.String pattern) File search (easy glob)

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_ALPHA

private static final double DEFAULT_ALPHA

smoothing default parameter (ELE)

See Also:

Constant Field Values

opt_with_value

private final java.util.Map<java.lang.String,java.lang.String> opt_with_value

for Command line easy parser

values

private final java.util.Map<java.lang.String,java.lang.String> values

opt_without_value

private final java.util.Set<java.lang.String> opt_without_value

arglist

private final java.util.List<java.lang.String> arglist

Constructor Detail

CommandLineInterface

public CommandLineInterface()

Method Detail

main

public static void main(java.lang.String[] args)
                 throws java.io.IOException

Command Line Interface

Parameters:

args - command line arguments

Throws:

java.io.IOException

parse

private void parse(java.lang.String[] args)

Command line easy parser

Parameters:

args - command line arguments

addOpt

private void addOpt(java.lang.String opt,
                    java.lang.String key,
                    java.lang.String value)

requireParamString

@NotNull
private @NotNull java.lang.String requireParamString(@NotNull
                                                              @NotNull java.lang.String key)

getParamDouble

private double getParamDouble(java.lang.String key,
                              double defaultValue)

Returns the double, or the default is absent. Throws if the double is specified but invalid.

getParamLongOrNull

@Nullable
private @Nullable java.lang.Long getParamLongOrNull(java.lang.String key)

hasParam

private boolean hasParam(java.lang.String opt)

searchFile

private java.io.File searchFile(java.io.File directory,
                                java.lang.String pattern)

File search (easy glob)

Parameters:

directory - directory path

pattern - searching file pattern with regular representation

Returns:

matched file

generateProfile

public void generateProfile()

Generate Language Profile from a text file.

 usage: --genprofile [text file] [language name]
 

detectLang

public void detectLang()
                throws java.io.IOException

Language detection test for each file (--detectlang option)

 usage: --detectlang -d [profile directory] -a [alpha] -s [seed] [test file(s)]
 

Throws:

java.io.IOException

batchTest

public void batchTest()
               throws java.io.IOException

Batch Test of Language Detection (--batchtest option)

 usage: --batchtest -d [profile directory] -a [alpha] -s [seed] [test data(s)]
 

The format of test data(s):

   [correct language name]\t[text body for test]\n
 

Throws:

java.io.IOException

makeDetector

private LanguageDetector makeDetector()
                               throws java.io.IOException

Using all language profiles from the given directory.

Throws:

java.io.IOException