mirror of https://github.com/kivy/pyjnius.git
843 lines
29 KiB
Cython
843 lines
29 KiB
Cython
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class JavaException(Exception):
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'''Can be a real java exception, or just an exception from the wrapper.
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'''
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pass
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cdef class JavaObject(object):
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'''Can contain any Java object. Used to store instance, or whatever.
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'''
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cdef jobject obj
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def __cinit__(self):
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self.obj = NULL
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cdef class JavaClassStorage:
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cdef jclass j_cls
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def __cinit__(self):
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self.j_cls = NULL
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def __dealloc__(self):
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cdef JNIEnv *j_env
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if self.j_cls != NULL:
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j_env = get_jnienv()
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j_env[0].DeleteGlobalRef(j_env, self.j_cls)
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self.j_cls = NULL
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cdef dict jclass_register = {}
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class MetaJavaClass(type):
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def __new__(meta, classname, bases, classDict):
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meta.resolve_class(classDict)
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tp = type.__new__(meta, classname, bases, classDict)
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jclass_register[classDict['__javaclass__']] = tp
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return tp
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@staticmethod
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def get_javaclass(name):
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return jclass_register.get(name)
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@classmethod
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def resolve_class(meta, classDict):
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# search the Java class, and bind to our object
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if not '__javaclass__' in classDict:
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raise JavaException('__javaclass__ definition missing')
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cdef JavaClassStorage jcs = JavaClassStorage()
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cdef bytes __javaclass__ = <bytes>classDict['__javaclass__']
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cdef bytes __javainterfaces__ = <bytes>classDict.get('__javainterfaces__', '')
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cdef bytes __javabaseclass__ = <bytes>classDict.get('__javabaseclass__', '')
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cdef jmethodID getProxyClass, getClassLoader
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cdef jclass *interfaces
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cdef jobject *jargs
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cdef JNIEnv *j_env = get_jnienv()
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if __javainterfaces__ and __javabaseclass__:
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baseclass = j_env[0].FindClass(j_env, <char*>__javabaseclass__)
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interfaces = <jclass *>malloc(sizeof(jclass) * len(__javainterfaces__))
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for n, i in enumerate(__javainterfaces__):
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interfaces[n] = j_env[0].FindClass(j_env, <char*>i)
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getProxyClass = j_env[0].GetStaticMethodID(
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j_env, baseclass, "getProxyClass",
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"(Ljava/lang/ClassLoader,[Ljava/lang/Class;)Ljava/lang/Class;")
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getClassLoader = j_env[0].GetStaticMethodID(
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j_env, baseclass, "getClassLoader", "()Ljava/lang/Class;")
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with nogil:
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classLoader = j_env[0].CallStaticObjectMethodA(
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j_env, baseclass, getClassLoader, [])
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jargs = <jobject *>malloc(sizeof(jobject) * 2)
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jargs[0] = <jobject *>classLoader
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jargs[1] = interfaces
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jcs.j_cls = j_env[0].CallStaticObjectMethod(
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j_env, baseclass, getProxyClass, jargs)
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if jcs.j_cls == NULL:
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raise JavaException('Unable to create the class'
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' {0}'.format(__javaclass__))
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else:
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jcs.j_cls = j_env[0].FindClass(j_env,
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<char *>__javaclass__)
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if jcs.j_cls == NULL:
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raise JavaException('Unable to find the class'
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' {0}'.format(__javaclass__))
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# XXX do we need to grab a ref here?
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# -> Yes, according to http://developer.android.com/training/articles/perf-jni.html
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# in the section Local and Global References
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jcs.j_cls = j_env[0].NewGlobalRef(j_env, jcs.j_cls)
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classDict['__cls_storage'] = jcs
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# search all the static JavaMethod within our class, and resolve them
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cdef JavaMethod jm
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cdef JavaMultipleMethod jmm
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for name, value in classDict.iteritems():
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if isinstance(value, JavaMethod):
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jm = value
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if not jm.is_static:
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continue
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jm.set_resolve_info(j_env, jcs.j_cls, None,
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name, __javaclass__)
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elif isinstance(value, JavaMultipleMethod):
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jmm = value
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jmm.set_resolve_info(j_env, jcs.j_cls, None,
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name, __javaclass__)
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# search all the static JavaField within our class, and resolve them
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cdef JavaField jf
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for name, value in classDict.iteritems():
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if not isinstance(value, JavaField):
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continue
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jf = value
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if not jf.is_static:
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continue
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jf.set_resolve_info(j_env, jcs.j_cls,
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name, __javaclass__)
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cdef class JavaClass(object):
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'''Main class to do introspection.
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'''
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cdef JNIEnv *j_env
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cdef jclass j_cls
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cdef LocalRef j_self
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def __cinit__(self, *args, **kwargs):
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self.j_cls = NULL
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self.j_self = None
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def __init__(self, *args, **kwargs):
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super(JavaClass, self).__init__()
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# copy the current attribute in the storage to our class
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cdef JavaClassStorage jcs = self.__cls_storage
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self.j_cls = jcs.j_cls
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if 'noinstance' not in kwargs:
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self.call_constructor(args)
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self.resolve_methods()
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self.resolve_fields()
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cdef void instanciate_from(self, LocalRef j_self) except *:
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self.j_self = j_self
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self.resolve_methods()
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self.resolve_fields()
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cdef void call_constructor(self, args) except *:
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# the goal is to find the class constructor, and call it with the
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# correct arguments.
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cdef jvalue *j_args = NULL
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cdef jobject j_self = NULL
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cdef jmethodID constructor = NULL
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cdef JNIEnv *j_env = get_jnienv()
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# get the constructor definition if exist
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definitions = [('()V', False)]
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if hasattr(self, '__javaconstructor__'):
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definitions = self.__javaconstructor__
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if isinstance(definitions, basestring):
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definitions = [definitions]
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if len(definitions) == 0:
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raise JavaException('No constructor available')
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elif len(definitions) == 1:
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definition, is_varargs = definitions[0]
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d_ret, d_args = parse_definition(definition)
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if is_varargs:
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args_ = args[:len(d_args) - 1] + (args[len(d_args) - 1:],)
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else:
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args_ = args
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if len(args or ()) != len(d_args or ()):
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raise JavaException('Invalid call, number of argument'
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' mismatch for constructor')
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else:
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scores = []
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for definition, is_varargs in definitions:
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d_ret, d_args = parse_definition(definition)
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if is_varargs:
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args_ = args[:len(d_args) - 1] + (args[len(d_args) - 1:],)
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else:
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args_ = args
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score = calculate_score(d_args, args)
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if score == -1:
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continue
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scores.append((score, definition, d_ret, d_args, args_))
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if not scores:
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raise JavaException('No constructor matching your arguments')
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scores.sort()
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score, definition, d_ret, d_args, args_ = scores[-1]
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try:
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# convert python arguments to java arguments
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if len(args):
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j_args = <jvalue *>malloc(sizeof(jvalue) * len(d_args))
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if j_args == NULL:
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raise MemoryError('Unable to allocate memory for java args')
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populate_args(j_env, d_args, j_args, args_)
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# get the java constructor
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constructor = j_env[0].GetMethodID(
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j_env, self.j_cls, '<init>', <char *><bytes>definition)
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if constructor == NULL:
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raise JavaException('Unable to found the constructor'
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' for {0}'.format(self.__javaclass__))
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# create the object
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j_self = j_env[0].NewObjectA(j_env, self.j_cls,
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constructor, j_args)
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# release our arguments
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release_args(j_env, d_args, j_args, args_)
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check_exception(j_env)
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if j_self == NULL:
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raise JavaException('Unable to instanciate {0}'.format(
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self.__javaclass__))
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self.j_self = create_local_ref(j_env, j_self)
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j_env[0].DeleteLocalRef(j_env, j_self)
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finally:
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if j_args != NULL:
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free(j_args)
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cdef void resolve_methods(self) except *:
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# search all the JavaMethod within our class, and resolve them
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cdef JavaMethod jm
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cdef JavaMultipleMethod jmm
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cdef JNIEnv *j_env = get_jnienv()
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for name, value in self.__class__.__dict__.iteritems():
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if isinstance(value, JavaMethod):
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jm = value
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if jm.is_static:
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continue
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jm.set_resolve_info(j_env, self.j_cls, self.j_self,
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name, self.__javaclass__)
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elif isinstance(value, JavaMultipleMethod):
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jmm = value
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jmm.set_resolve_info(j_env, self.j_cls, self.j_self,
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name, self.__javaclass__)
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cdef void resolve_fields(self) except *:
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# search all the JavaField within our class, and resolve them
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cdef JavaField jf
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cdef JNIEnv *j_env = get_jnienv()
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for name, value in self.__class__.__dict__.iteritems():
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if not isinstance(value, JavaField):
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continue
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jf = value
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if jf.is_static:
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continue
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jf.set_resolve_info(j_env, self.j_cls,
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name, self.__javaclass__)
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def __repr__(self):
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return '<{0} at 0x{1:x} jclass={2} jself={3}>'.format(
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self.__class__.__name__,
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id(self),
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self.__javaclass__,
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self.j_self)
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cdef class JavaField(object):
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cdef jfieldID j_field
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cdef JNIEnv *j_env
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cdef jclass j_cls
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cdef bytes definition
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cdef object is_static
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cdef bytes name
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cdef bytes classname
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def __cinit__(self, definition, **kwargs):
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self.j_field = NULL
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self.j_cls = NULL
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def __init__(self, definition, **kwargs):
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super(JavaField, self).__init__()
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self.definition = definition
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self.is_static = kwargs.get('static', False)
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cdef void set_resolve_info(self, JNIEnv *j_env, jclass j_cls,
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bytes name, bytes classname):
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j_env = get_jnienv()
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self.name = name
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self.classname = classname
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self.j_cls = j_cls
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cdef void ensure_field(self) except *:
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cdef JNIEnv *j_env = get_jnienv()
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if self.j_field != NULL:
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return
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if self.is_static:
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self.j_field = j_env[0].GetStaticFieldID(
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j_env, self.j_cls, <char *>self.name,
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<char *>self.definition)
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else:
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self.j_field = j_env[0].GetFieldID(
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j_env, self.j_cls, <char *>self.name,
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<char *>self.definition)
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if self.j_field == NULL:
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raise JavaException('Unable to found the field {0}'.format(self.name))
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def __get__(self, obj, objtype):
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cdef jobject j_self
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self.ensure_field()
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if obj is None:
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return self.read_static_field()
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j_self = (<JavaClass?>obj).j_self.obj
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return self.read_field(j_self)
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cdef read_field(self, jobject j_self):
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cdef jboolean j_boolean
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cdef jbyte j_byte
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cdef jchar j_char
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cdef jshort j_short
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cdef jint j_int
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cdef jlong j_long
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cdef jfloat j_float
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cdef jdouble j_double
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cdef jobject j_object
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cdef char *c_str
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cdef bytes py_str
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cdef object ret = None
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cdef JavaObject ret_jobject
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cdef JavaClass ret_jc
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cdef JNIEnv *j_env = get_jnienv()
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# return type of the java method
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r = self.definition[0]
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# now call the java method
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if r == 'Z':
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j_boolean = j_env[0].GetBooleanField(
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j_env, j_self, self.j_field)
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ret = True if j_boolean else False
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elif r == 'B':
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j_byte = j_env[0].GetByteField(
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j_env, j_self, self.j_field)
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ret = <char>j_byte
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elif r == 'C':
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j_char = j_env[0].GetCharField(
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j_env, j_self, self.j_field)
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ret = chr(<char>j_char)
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elif r == 'S':
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j_short = j_env[0].GetShortField(
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j_env, j_self, self.j_field)
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ret = <short>j_short
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elif r == 'I':
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j_int = j_env[0].GetIntField(
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j_env, j_self, self.j_field)
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ret = <int>j_int
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elif r == 'J':
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j_long = j_env[0].GetLongField(
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j_env, j_self, self.j_field)
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ret = <long>j_long
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elif r == 'F':
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j_float = j_env[0].GetFloatField(
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j_env, j_self, self.j_field)
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ret = <float>j_float
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elif r == 'D':
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j_double = j_env[0].GetDoubleField(
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j_env, j_self, self.j_field)
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ret = <double>j_double
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elif r == 'L':
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j_object = j_env[0].GetObjectField(
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j_env, j_self, self.j_field)
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check_exception(j_env)
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if j_object != NULL:
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ret = convert_jobject_to_python(
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j_env, self.definition, j_object)
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j_env[0].DeleteLocalRef(j_env, j_object)
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elif r == '[':
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r = self.definition[1:]
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j_object = j_env[0].GetObjectField(
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j_env, j_self, self.j_field)
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check_exception(j_env)
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if j_object != NULL:
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ret = convert_jarray_to_python(j_env, r, j_object)
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j_env[0].DeleteLocalRef(j_env, j_object)
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else:
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raise Exception('Invalid field definition')
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check_exception(j_env)
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return ret
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cdef read_static_field(self):
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cdef jboolean j_boolean
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cdef jbyte j_byte
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cdef jchar j_char
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cdef jshort j_short
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cdef jint j_int
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cdef jlong j_long
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cdef jfloat j_float
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cdef jdouble j_double
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cdef jobject j_object
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cdef object ret = None
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cdef JNIEnv *j_env = get_jnienv()
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# return type of the java method
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r = self.definition[0]
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# now call the java method
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if r == 'Z':
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j_boolean = j_env[0].GetStaticBooleanField(
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j_env, self.j_cls, self.j_field)
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ret = True if j_boolean else False
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elif r == 'B':
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j_byte = j_env[0].GetStaticByteField(
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j_env, self.j_cls, self.j_field)
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ret = <char>j_byte
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elif r == 'C':
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j_char = j_env[0].GetStaticCharField(
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j_env, self.j_cls, self.j_field)
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ret = chr(<char>j_char)
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elif r == 'S':
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j_short = j_env[0].GetStaticShortField(
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j_env, self.j_cls, self.j_field)
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ret = <short>j_short
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elif r == 'I':
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j_int = j_env[0].GetStaticIntField(
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j_env, self.j_cls, self.j_field)
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ret = <int>j_int
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elif r == 'J':
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j_long = j_env[0].GetStaticLongField(
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j_env, self.j_cls, self.j_field)
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ret = <long>j_long
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elif r == 'F':
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j_float = j_env[0].GetStaticFloatField(
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j_env, self.j_cls, self.j_field)
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ret = <float>j_float
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elif r == 'D':
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j_double = j_env[0].GetStaticDoubleField(
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j_env, self.j_cls, self.j_field)
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ret = <double>j_double
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elif r == 'L':
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j_object = j_env[0].GetStaticObjectField(
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j_env, self.j_cls, self.j_field)
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check_exception(j_env)
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if j_object != NULL:
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ret = convert_jobject_to_python(
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j_env, self.definition, j_object)
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j_env[0].DeleteLocalRef(j_env, j_object)
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elif r == '[':
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r = self.definition[1:]
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j_object = j_env[0].GetStaticObjectField(
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j_env, self.j_cls, self.j_field)
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check_exception(j_env)
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if j_object != NULL:
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ret = convert_jarray_to_python(j_env, r, j_object)
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j_env[0].DeleteLocalRef(j_env, j_object)
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else:
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raise Exception('Invalid field definition')
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check_exception(j_env)
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return ret
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cdef class JavaMethod(object):
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'''Used to resolve a Java method, and do the call
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'''
|
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cdef jmethodID j_method
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cdef jclass j_cls
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cdef LocalRef j_self
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cdef bytes name
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cdef bytes classname
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cdef bytes definition
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cdef object is_static
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cdef bint is_varargs
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cdef object definition_return
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cdef object definition_args
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def __cinit__(self, definition, **kwargs):
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self.j_method = NULL
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self.j_cls = NULL
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self.j_self = None
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def __init__(self, definition, **kwargs):
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super(JavaMethod, self).__init__()
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self.definition = <bytes>definition
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self.definition_return, self.definition_args = \
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parse_definition(definition)
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self.is_static = kwargs.get('static', False)
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self.is_varargs = kwargs.get('varargs', False)
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|
|
cdef void ensure_method(self) except *:
|
|
if self.j_method != NULL:
|
|
return
|
|
cdef JNIEnv *j_env = get_jnienv()
|
|
if self.name is None:
|
|
raise JavaException('Unable to find a None method!')
|
|
if self.is_static:
|
|
self.j_method = j_env[0].GetStaticMethodID(
|
|
j_env, self.j_cls, <char *>self.name,
|
|
<char *>self.definition)
|
|
else:
|
|
self.j_method = j_env[0].GetMethodID(
|
|
j_env, self.j_cls, <char *>self.name,
|
|
<char *>self.definition)
|
|
|
|
if self.j_method == NULL:
|
|
raise JavaException('Unable to find the method'
|
|
' {0}({1})'.format(self.name, self.definition))
|
|
|
|
cdef void set_resolve_info(self, JNIEnv *j_env, jclass j_cls,
|
|
LocalRef j_self, bytes name, bytes classname):
|
|
self.name = name
|
|
self.classname = classname
|
|
self.j_cls = j_cls
|
|
self.j_self = j_self
|
|
|
|
def __get__(self, obj, objtype):
|
|
if obj is None:
|
|
return self
|
|
# XXX FIXME we MUST not change our own j_self, but return a "bound"
|
|
# method here, as python does!
|
|
cdef JavaClass jc = obj
|
|
self.j_self = jc.j_self
|
|
return self
|
|
|
|
def __call__(self, *args):
|
|
# argument array to pass to the method
|
|
cdef jvalue *j_args = NULL
|
|
cdef tuple d_args = self.definition_args
|
|
cdef JNIEnv *j_env = get_jnienv()
|
|
|
|
if self.is_varargs:
|
|
args = args[:len(d_args) - 1] + (args[len(d_args) - 1:],)
|
|
|
|
if len(args) != len(d_args):
|
|
raise JavaException('Invalid call, number of argument mismatch')
|
|
|
|
if not self.is_static and j_env == NULL:
|
|
raise JavaException('Cannot call instance method on a un-instanciated class')
|
|
|
|
self.ensure_method()
|
|
|
|
try:
|
|
# convert python argument if necessary
|
|
if len(args):
|
|
j_args = <jvalue *>malloc(sizeof(jvalue) * len(d_args))
|
|
if j_args == NULL:
|
|
raise MemoryError('Unable to allocate memory for java args')
|
|
populate_args(j_env, self.definition_args, j_args, args)
|
|
|
|
try:
|
|
# do the call
|
|
if self.is_static:
|
|
return self.call_staticmethod(j_env, j_args)
|
|
return self.call_method(j_env, j_args)
|
|
finally:
|
|
release_args(j_env, self.definition_args, j_args, args)
|
|
|
|
finally:
|
|
if j_args != NULL:
|
|
free(j_args)
|
|
|
|
cdef call_method(self, JNIEnv *j_env, jvalue *j_args):
|
|
cdef jboolean j_boolean
|
|
cdef jbyte j_byte
|
|
cdef jchar j_char
|
|
cdef jshort j_short
|
|
cdef jint j_int
|
|
cdef jlong j_long
|
|
cdef jfloat j_float
|
|
cdef jdouble j_double
|
|
cdef jobject j_object
|
|
cdef char *c_str
|
|
cdef bytes py_str
|
|
cdef object ret = None
|
|
cdef JavaObject ret_jobject
|
|
cdef JavaClass ret_jc
|
|
cdef jobject j_self = self.j_self.obj
|
|
|
|
# return type of the java method
|
|
r = self.definition_return[0]
|
|
|
|
# now call the java method
|
|
if r == 'V':
|
|
with nogil:
|
|
j_env[0].CallVoidMethodA(
|
|
j_env, j_self, self.j_method, j_args)
|
|
elif r == 'Z':
|
|
with nogil:
|
|
j_boolean = j_env[0].CallBooleanMethodA(
|
|
j_env, j_self, self.j_method, j_args)
|
|
ret = True if j_boolean else False
|
|
elif r == 'B':
|
|
with nogil:
|
|
j_byte = j_env[0].CallByteMethodA(
|
|
j_env, j_self, self.j_method, j_args)
|
|
ret = <char>j_byte
|
|
elif r == 'C':
|
|
with nogil:
|
|
j_char = j_env[0].CallCharMethodA(
|
|
j_env, j_self, self.j_method, j_args)
|
|
ret = chr(<char>j_char)
|
|
elif r == 'S':
|
|
with nogil:
|
|
j_short = j_env[0].CallShortMethodA(
|
|
j_env, j_self, self.j_method, j_args)
|
|
ret = <short>j_short
|
|
elif r == 'I':
|
|
with nogil:
|
|
j_int = j_env[0].CallIntMethodA(
|
|
j_env, j_self, self.j_method, j_args)
|
|
ret = <int>j_int
|
|
elif r == 'J':
|
|
with nogil:
|
|
j_long = j_env[0].CallLongMethodA(
|
|
j_env, j_self, self.j_method, j_args)
|
|
ret = <long>j_long
|
|
elif r == 'F':
|
|
with nogil:
|
|
j_float = j_env[0].CallFloatMethodA(
|
|
j_env, j_self, self.j_method, j_args)
|
|
ret = <float>j_float
|
|
elif r == 'D':
|
|
with nogil:
|
|
j_double = j_env[0].CallDoubleMethodA(
|
|
j_env, j_self, self.j_method, j_args)
|
|
ret = <double>j_double
|
|
elif r == 'L':
|
|
with nogil:
|
|
j_object = j_env[0].CallObjectMethodA(
|
|
j_env, j_self, self.j_method, j_args)
|
|
check_exception(j_env)
|
|
if j_object != NULL:
|
|
ret = convert_jobject_to_python(
|
|
j_env, self.definition_return, j_object)
|
|
j_env[0].DeleteLocalRef(j_env, j_object)
|
|
elif r == '[':
|
|
r = self.definition_return[1:]
|
|
with nogil:
|
|
j_object = j_env[0].CallObjectMethodA(
|
|
j_env, j_self, self.j_method, j_args)
|
|
check_exception(j_env)
|
|
if j_object != NULL:
|
|
ret = convert_jarray_to_python(j_env, r, j_object)
|
|
j_env[0].DeleteLocalRef(j_env, j_object)
|
|
else:
|
|
raise Exception('Invalid return definition?')
|
|
|
|
check_exception(j_env)
|
|
return ret
|
|
|
|
cdef call_staticmethod(self, JNIEnv *j_env, jvalue *j_args):
|
|
cdef jboolean j_boolean
|
|
cdef jbyte j_byte
|
|
cdef jchar j_char
|
|
cdef jshort j_short
|
|
cdef jint j_int
|
|
cdef jlong j_long
|
|
cdef jfloat j_float
|
|
cdef jdouble j_double
|
|
cdef jobject j_object
|
|
cdef char *c_str
|
|
cdef bytes py_str
|
|
cdef object ret = None
|
|
cdef JavaObject ret_jobject
|
|
cdef JavaClass ret_jc
|
|
|
|
# return type of the java method
|
|
r = self.definition_return[0]
|
|
|
|
# now call the java method
|
|
if r == 'V':
|
|
with nogil:
|
|
j_env[0].CallStaticVoidMethodA(
|
|
j_env, self.j_cls, self.j_method, j_args)
|
|
elif r == 'Z':
|
|
with nogil:
|
|
j_boolean = j_env[0].CallStaticBooleanMethodA(
|
|
j_env, self.j_cls, self.j_method, j_args)
|
|
ret = True if j_boolean else False
|
|
elif r == 'B':
|
|
with nogil:
|
|
j_byte = j_env[0].CallStaticByteMethodA(
|
|
j_env, self.j_cls, self.j_method, j_args)
|
|
ret = <char>j_byte
|
|
elif r == 'C':
|
|
with nogil:
|
|
j_char = j_env[0].CallStaticCharMethodA(
|
|
j_env, self.j_cls, self.j_method, j_args)
|
|
ret = chr(<char>j_char)
|
|
elif r == 'S':
|
|
with nogil:
|
|
j_short = j_env[0].CallStaticShortMethodA(
|
|
j_env, self.j_cls, self.j_method, j_args)
|
|
ret = <short>j_short
|
|
elif r == 'I':
|
|
with nogil:
|
|
j_int = j_env[0].CallStaticIntMethodA(
|
|
j_env, self.j_cls, self.j_method, j_args)
|
|
ret = <int>j_int
|
|
elif r == 'J':
|
|
with nogil:
|
|
j_long = j_env[0].CallStaticLongMethodA(
|
|
j_env, self.j_cls, self.j_method, j_args)
|
|
ret = <long>j_long
|
|
elif r == 'F':
|
|
with nogil:
|
|
j_float = j_env[0].CallStaticFloatMethodA(
|
|
j_env, self.j_cls, self.j_method, j_args)
|
|
ret = <float>j_float
|
|
elif r == 'D':
|
|
with nogil:
|
|
j_double = j_env[0].CallStaticDoubleMethodA(
|
|
j_env, self.j_cls, self.j_method, j_args)
|
|
ret = <double>j_double
|
|
elif r == 'L':
|
|
with nogil:
|
|
j_object = j_env[0].CallStaticObjectMethodA(
|
|
j_env, self.j_cls, self.j_method, j_args)
|
|
check_exception(j_env)
|
|
if j_object != NULL:
|
|
ret = convert_jobject_to_python(
|
|
j_env, self.definition_return, j_object)
|
|
j_env[0].DeleteLocalRef(j_env, j_object)
|
|
elif r == '[':
|
|
r = self.definition_return[1:]
|
|
with nogil:
|
|
j_object = j_env[0].CallStaticObjectMethodA(
|
|
j_env, self.j_cls, self.j_method, j_args)
|
|
check_exception(j_env)
|
|
if j_object != NULL:
|
|
ret = convert_jarray_to_python(j_env, r, j_object)
|
|
j_env[0].DeleteLocalRef(j_env, j_object)
|
|
else:
|
|
raise Exception('Invalid return definition?')
|
|
|
|
check_exception(j_env)
|
|
return ret
|
|
|
|
|
|
cdef class JavaMultipleMethod(object):
|
|
|
|
cdef LocalRef j_self
|
|
cdef list definitions
|
|
cdef dict static_methods
|
|
cdef dict instance_methods
|
|
cdef bytes name
|
|
cdef bytes classname
|
|
|
|
def __cinit__(self, definition, **kwargs):
|
|
self.j_self = None
|
|
|
|
def __init__(self, definitions, **kwargs):
|
|
super(JavaMultipleMethod, self).__init__()
|
|
self.definitions = definitions
|
|
self.static_methods = {}
|
|
self.instance_methods = {}
|
|
self.name = None
|
|
|
|
def __get__(self, obj, objtype):
|
|
if obj is None:
|
|
self.j_self = None
|
|
return self
|
|
# XXX FIXME we MUST not change our own j_self, but return a "bound"
|
|
# method here, as python does!
|
|
cdef JavaClass jc = obj
|
|
self.j_self = jc.j_self
|
|
return self
|
|
|
|
cdef void set_resolve_info(self, JNIEnv *j_env, jclass j_cls,
|
|
LocalRef j_self, bytes name, bytes classname):
|
|
cdef JavaMethod jm
|
|
self.name = name
|
|
self.classname = classname
|
|
|
|
for signature, static, is_varargs in self.definitions:
|
|
jm = None
|
|
if j_self is None and static:
|
|
if signature in self.static_methods:
|
|
continue
|
|
jm = JavaStaticMethod(signature, varargs=is_varargs)
|
|
jm.set_resolve_info(j_env, j_cls, j_self, name, classname)
|
|
self.static_methods[signature] = jm
|
|
|
|
elif j_self is not None and not static:
|
|
if signature in self.instance_methods:
|
|
continue
|
|
jm = JavaMethod(signature, varargs=is_varargs)
|
|
jm.set_resolve_info(j_env, j_cls, None, name, classname)
|
|
self.instance_methods[signature] = jm
|
|
|
|
def __call__(self, *args):
|
|
# try to match our args to a signature
|
|
cdef JavaMethod jm
|
|
cdef list scores = []
|
|
cdef dict methods
|
|
|
|
if self.j_self:
|
|
methods = self.instance_methods
|
|
else:
|
|
methods = self.static_methods
|
|
|
|
for signature, jm in methods.iteritems():
|
|
sign_ret, sign_args = jm.definition_return, jm.definition_args
|
|
if jm.is_varargs:
|
|
args_ = args[:len(sign_args) - 1] + (args[len(sign_args) - 1:],)
|
|
else:
|
|
args_ = args
|
|
|
|
score = calculate_score(sign_args, args_, jm.is_varargs)
|
|
|
|
if score <= 0:
|
|
continue
|
|
scores.append((score, signature))
|
|
|
|
if not scores:
|
|
raise JavaException('No methods matching your arguments')
|
|
scores.sort()
|
|
score, signature = scores[-1]
|
|
|
|
jm = methods[signature]
|
|
jm.j_self = self.j_self
|
|
return jm.__call__(*args)
|
|
|
|
|
|
class JavaStaticMethod(JavaMethod):
|
|
def __init__(self, definition, **kwargs):
|
|
kwargs['static'] = True
|
|
super(JavaStaticMethod, self).__init__(definition, **kwargs)
|
|
|
|
|
|
class JavaStaticField(JavaField):
|
|
def __init__(self, definition, **kwargs):
|
|
kwargs['static'] = True
|
|
super(JavaStaticField, self).__init__(definition, **kwargs)
|