Package opennlp.tools.langdetect

Class ThreadSafeLanguageDetectorME

java.lang.Object

opennlp.tools.langdetect.ThreadSafeLanguageDetectorME

All Implemented Interfaces:

AutoCloseable, LanguageDetector

@ThreadSafe
public class ThreadSafeLanguageDetectorME
extends Object
implements LanguageDetector, AutoCloseable

A thread-safe version of the LanguageDetectorME. Using it is completely transparent. You can use it in a single-threaded context as well, it only incurs a minimal overhead.

Note:
This implementation uses a ThreadLocal. Although the implementation is lightweight because the model is not duplicated, if you have many long-running threads, you may run into memory problems.

Be careful when using this in a Jakarta EE application, for example.

The user is responsible for clearing the ThreadLocal via calling close().

See Also:

• LanguageDetector
• LanguageDetectorME

Constructor Summary

Constructors

Constructor	Description
ThreadSafeLanguageDetectorME(LanguageDetectorModel model)	Initializes a ThreadSafeLanguageDetectorME with the specified model.

Method Summary

Modifier and Type	Method	Description
void	close()
String[]	getSupportedLanguages()
Language	predictLanguage(CharSequence content)	Predicts the Language for the full content length.
Language[]	predictLanguages(CharSequence content)	Predicts the languages for the full content length.

Methods inherited from class java.lang.Object

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

Constructor Details

ThreadSafeLanguageDetectorME

public ThreadSafeLanguageDetectorME(LanguageDetectorModel model)

Initializes a ThreadSafeLanguageDetectorME with the specified model.

Parameters:

model - A valid LanguageDetectorModel.

Method Details

predictLanguages

public Language[] predictLanguages(CharSequence content)

Description copied from interface: LanguageDetector

Predicts the languages for the full content length.

Specified by:

predictLanguages in interface LanguageDetector

Parameters:

content - The textual content to detect potential languages from.

Returns:

the predicted languages

predictLanguage

public Language predictLanguage(CharSequence content)

Description copied from interface: LanguageDetector

Predicts the Language for the full content length.

Specified by:

predictLanguage in interface LanguageDetector

Parameters:

content - The textual content to detect potential languages from.

Returns:

the language with the highest confidence

getSupportedLanguages

public String[] getSupportedLanguages()

Specified by:

getSupportedLanguages in interface LanguageDetector

Returns:

Retrieves an array of language (codes) that are supported by a LanguageDetector.

close

public void close()

Specified by:

close in interface AutoCloseable