pyjnius/jnius/__init__.py

89 lines
2.3 KiB
Python

'''
Pyjnius
=======
Accessing Java classes from Python.
All the documentation is available at: http://pyjnius.readthedocs.org
'''
__version__ = '1.2.2-dev0'
from .env import get_jnius_lib_location, get_jdk_home
import os
import sys
if sys.platform == 'win32' and sys.version_info >= (3, 8):
path = os.path.dirname(__file__)
jdk_home = get_jdk_home(sys.platform)
with os.add_dll_directory(path):
for suffix in (
('bin', 'client'),
('bin', 'server'),
('jre', 'bin', 'client'),
('jre', 'bin', 'server'),
):
path = os.path.join(jdk_home, *suffix)
if not os.path.isdir(path):
continue
with os.add_dll_directory(path):
try:
from .jnius import * # noqa
from .reflect import * # noqa
except Exception as e:
pass
else:
break
else:
raise Exception("Unable to create jni env, no jvm dll found.")
else:
from .jnius import * # noqa
from .reflect import * # noqa
from six import with_metaclass
# XXX monkey patch methods that cannot be in cython.
# Cython doesn't allow to set new attribute on methods it compiled
HASHCODE_MAX = 2 ** 31 - 1
class PythonJavaClass_(with_metaclass(MetaJavaBase, PythonJavaClass)):
@java_method('()I', name='hashCode')
def hashCode(self):
return id(self) % HASHCODE_MAX
@java_method('()Ljava/lang/String;', name='hashCode')
def hashCode_(self):
return '{}'.format(self.hashCode())
@java_method('()Ljava/lang/String;', name='toString')
def toString(self):
return repr(self)
@java_method('(Ljava/lang/Object;)Z', name='equals')
def equals(self, other):
return self.hashCode() == other.hashCode()
PythonJavaClass = PythonJavaClass_
# from https://gist.github.com/tito/09c42fb4767721dc323d
import os
if "ANDROID_ARGUMENT" in os.environ:
# on android, catch all exception to ensure about a jnius.detach
import threading
import jnius
orig_thread_run = threading.Thread.run
def jnius_thread_hook(*args, **kwargs):
try:
return orig_thread_run(*args, **kwargs)
finally:
jnius.detach()
threading.Thread.run = jnius_thread_hook