jpype

2022-09-08
Calling Java From Python

using jpype or pyjnius

sample code for jpype:

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from jpype import *
import jpype.imports # this is needed! shit.
addClassPath("/root/Desktop/works/pyjom/tests/karaoke_effects/classpath/lingua.jar")
startJVM(getDefaultJVMPath())
java.lang.System.out.println("Calling Java Print from Python using Jpype!")
from com.github.pemistahl.lingua.api import *
# detector = LanguageDetectorBuilder.fromAllLanguages().withLowAccuracyMode().build()
detector = LanguageDetectorBuilder.fromAllLanguages().build() # 3.5GB just for detecting language! it is somehow crazy.
sample = 'hello world'
result = detector.detectLanguageOf(sample)
print(result, type(result)) # <java class 'com.github.pemistahl.lingua.api.Language'>
# but we can convert it into string.
strResult = str(result)
print(strResult, type(strResult))
import math
print("CALLING MATH: %d" % math.sqrt(4))
shutdownJVM()

sample for pyjnius:

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import jnius_config
# jnius_config.add_options('-Xrs', '-Xmx4096')
jnius_config.set_classpath('.', "/root/Desktop/works/pyjom/tests/karaoke_effects/classpath/lingua.jar")
import jnius
jnius.autoclass('java.lang.System').out.println('Hello world')
detector = jnius.autoclass('com.github.pemistahl.lingua.api.LanguageDetectorBuilder').fromAllLanguages().build()
sample = 'hello world'
result = detector.detectLanguageOf(sample)
print(result, type(result))
# breakpoint()
strResult = result.toString()
print(strResult, type(strResult))

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