def registerClassImplementation(classname, proto):
""" (internal) Add an implementation for a class
Use @JImplementationFor(cls) to access this.
"""
if classname in _JP_IMPLEMENTATIONS:
_JP_IMPLEMENTATIONS[classname].append(proto)
else:
_JP_IMPLEMENTATIONS[classname] = [proto]
# If we have already created a class, apply it retroactively.
if _jpype._hasClass(classname):
_applyCustomizerPost(_jpype._getClass(classname), proto)
def __new__(cls, jc, loader=None, initialize=True):
if loader and isinstance(jc, str):
jc = _jpype._java_lang_Class.forName(jc, initialize, loader)
# Handle generics
if isinstance(jc, str) and jc.endswith(">"):
i = jc.find("<")
params = jc[i + 1:-1]
ret = _jpype._getClass(jc[:i])
acceptParams = len(ret.class_.getTypeParameters())
if acceptParams == 0:
raise TypeError("Java class '%s' does not take parameters" %
(ret.__name__))
if len(params) > 0:
params = params.split(',')
if len(params) > 0 and len(params) != len(
ret.class_.getTypeParameters()):
raise TypeError("Java generic class '%s' length mismatch" %
(ret.__name__))
return ret
# Pass to class factory to create the type
return _jpype._getClass(jc)
def testGetClass(self):
with self.assertRaisesRegex(TypeError, "not found"):
_jpype._getClass("not.a.class")
def testGetClass(self):
self.assertIsInstance(_jpype._getClass("java.lang.String"), _jpype._JClass)
with self.assertRaises(TypeError):
_jpype._getClass(object())
