mirror of https://github.com/kivy/pyjnius.git
603 lines
23 KiB
Cython
603 lines
23 KiB
Cython
from cpython.version cimport PY_MAJOR_VERSION
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cdef jstringy_arg(argtype):
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return argtype in ('Ljava/lang/String;',
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'Ljava/lang/CharSequence;',
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'Ljava/lang/Object;')
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cdef void release_args(JNIEnv *j_env, tuple definition_args, jvalue *j_args, args) except *:
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# do the conversion from a Python object to Java from a Java definition
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cdef JavaObject jo
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cdef JavaClass jc
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cdef int index
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for index, argtype in enumerate(definition_args):
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py_arg = args[index]
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if argtype[0] == 'L':
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if py_arg is None:
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j_args[index].l = NULL
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if isinstance(py_arg, basestring) and \
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jstringy_arg(argtype):
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j_env[0].DeleteLocalRef(j_env, j_args[index].l)
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elif argtype[0] == '[':
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ret = convert_jarray_to_python(j_env, argtype[1:], j_args[index].l)
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try:
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args[index][:] = ret
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except TypeError:
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pass
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j_env[0].DeleteLocalRef(j_env, j_args[index].l)
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cdef void populate_args(JNIEnv *j_env, tuple definition_args, jvalue *j_args, args) except *:
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# do the conversion from a Python object to Java from a Java definition
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cdef JavaClassStorage jcs
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cdef JavaObject jo
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cdef JavaClass jc
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cdef PythonJavaClass pc
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cdef int index
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cdef bytes py_str
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for index, argtype in enumerate(definition_args):
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py_arg = args[index]
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if argtype == 'Z':
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j_args[index].z = py_arg
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elif argtype == 'B':
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j_args[index].b = py_arg
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elif argtype == 'C':
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j_args[index].c = ord(py_arg)
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elif argtype == 'S':
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j_args[index].s = py_arg
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elif argtype == 'I':
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j_args[index].i = py_arg
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elif argtype == 'J':
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j_args[index].j = py_arg
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elif argtype == 'F':
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j_args[index].f = py_arg
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elif argtype == 'D':
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j_args[index].d = py_arg
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elif argtype[0] == 'L':
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if py_arg is None:
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j_args[index].l = NULL
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elif (isinstance(py_arg, basestring) or (PY_MAJOR_VERSION >=3 and isinstance(py_arg, str))) \
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and jstringy_arg(argtype):
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py_str = <bytes>py_arg.encode('utf-8')
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j_args[index].l = j_env[0].NewStringUTF(j_env, <char *>py_str)
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elif isinstance(py_arg, JavaClass):
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jc = py_arg
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check_assignable_from(j_env, jc, argtype[1:-1])
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j_args[index].l = jc.j_self.obj
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elif isinstance(py_arg, JavaObject):
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jo = py_arg
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j_args[index].l = jo.obj
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elif isinstance(py_arg, MetaJavaClass):
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jcs = py_arg.__cls_storage
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j_args[index].l = jcs.j_cls
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elif isinstance(py_arg, PythonJavaClass):
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# from python class, get the proxy/python class
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pc = py_arg
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# get the java class
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jc = pc.j_self
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# get the localref
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j_args[index].l = jc.j_self.obj
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elif isinstance(py_arg, type):
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jc = py_arg
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j_args[index].l = jc.j_cls
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elif isinstance(py_arg, (tuple, list)):
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j_args[index].l = convert_pyarray_to_java(j_env, argtype, py_arg)
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else:
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raise JavaException('Invalid python object for this '
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'argument. Want {0!r}, got {1!r}'.format(
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argtype[1:-1], py_arg))
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elif argtype[0] == '[':
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if py_arg is None:
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j_args[index].l = NULL
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continue
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if isinstance(py_arg, basestring) and PY_MAJOR_VERSION < 3:
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if argtype == '[B':
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py_arg = map(ord, py_arg)
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elif argtype == '[C':
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py_arg = list(py_arg)
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if isinstance(py_arg, str) and PY_MAJOR_VERSION >= 3 and argtype == '[C':
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py_arg = list(py_arg)
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if isinstance(py_arg, ByteArray) and argtype != '[B':
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raise JavaException(
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'Cannot use ByteArray for signature {}'.format(argtype))
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if not isinstance(py_arg, (list, tuple, ByteArray, bytes)):
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raise JavaException('Expecting a python list/tuple, got '
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'{0!r}'.format(py_arg))
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j_args[index].l = convert_pyarray_to_java(
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j_env, argtype[1:], py_arg)
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cdef convert_jobject_to_python(JNIEnv *j_env, definition, jobject j_object):
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# Convert a Java Object to a Python object, according to the definition.
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# If the definition is a java/lang/Object, then try to determine what is it
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# exactly.
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cdef char *c_str
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cdef bytes py_str
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r = definition[1:-1]
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cdef JavaObject ret_jobject
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cdef JavaClass ret_jc
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cdef jclass retclass
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cdef jmethodID retmeth
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# we got a generic object -> lookup for the real name instead.
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if r == 'java/lang/Object':
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r = definition = lookup_java_object_name(j_env, j_object)
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print('cjtp:r {0} definition {1}'.format(r, definition))
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if definition[0] == '[':
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return convert_jarray_to_python(j_env, definition[1:], j_object)
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# XXX what about others native type?
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# It seem, in case of the proxy, that they are never passed directly,
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# and always passed as "class" type instead.
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# Ie, B would be passed as Ljava/lang/Character;
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# if we got a string, just convert back to Python str.
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if r in ('java/lang/String', 'java/lang/CharSequence'):
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c_str = <char *>j_env[0].GetStringUTFChars(j_env, j_object, NULL)
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py_str = <bytes>c_str
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j_env[0].ReleaseStringUTFChars(j_env, j_object, c_str)
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if PY_MAJOR_VERSION < 3:
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return py_str
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else:
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return py_str.decode('utf-8')
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# XXX should be deactivable from configuration
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# ie, user might not want autoconvertion of lang classes.
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if r == 'java/lang/Long':
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retclass = j_env[0].GetObjectClass(j_env, j_object)
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retmeth = j_env[0].GetMethodID(j_env, retclass, 'longValue', '()J')
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return j_env[0].CallLongMethod(j_env, j_object, retmeth)
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if r == 'java/lang/Integer':
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retclass = j_env[0].GetObjectClass(j_env, j_object)
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retmeth = j_env[0].GetMethodID(j_env, retclass, 'intValue', '()I')
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return j_env[0].CallIntMethod(j_env, j_object, retmeth)
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if r == 'java/lang/Float':
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retclass = j_env[0].GetObjectClass(j_env, j_object)
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retmeth = j_env[0].GetMethodID(j_env, retclass, 'floatValue', '()F')
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return j_env[0].CallFloatMethod(j_env, j_object, retmeth)
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if r == 'java/lang/Double':
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retclass = j_env[0].GetObjectClass(j_env, j_object)
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retmeth = j_env[0].GetMethodID(j_env, retclass, 'doubleValue', '()D')
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return j_env[0].CallDoubleMethod(j_env, j_object, retmeth)
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if r == 'java/lang/Short':
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retclass = j_env[0].GetObjectClass(j_env, j_object)
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retmeth = j_env[0].GetMethodID(j_env, retclass, 'shortValue', '()S')
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return j_env[0].CallShortMethod(j_env, j_object, retmeth)
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if r == 'java/lang/Boolean':
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retclass = j_env[0].GetObjectClass(j_env, j_object)
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retmeth = j_env[0].GetMethodID(j_env, retclass, 'booleanValue', '()Z')
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return j_env[0].CallBooleanMethod(j_env, j_object, retmeth)
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if r == 'java/lang/Byte':
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retclass = j_env[0].GetObjectClass(j_env, j_object)
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retmeth = j_env[0].GetMethodID(j_env, retclass, 'byteValue', '()B')
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return j_env[0].CallByteMethod(j_env, j_object, retmeth)
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if r == 'java/lang/Character':
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retclass = j_env[0].GetObjectClass(j_env, j_object)
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retmeth = j_env[0].GetMethodID(j_env, retclass, 'charValue', '()C')
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return ord(j_env[0].CallCharMethod(j_env, j_object, retmeth))
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if r not in jclass_register:
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if r.startswith('$Proxy'):
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# only for $Proxy on android, don't use autoclass. The dalvik vm is
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# not able to give us introspection on that one (FindClass return
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# NULL).
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from .reflect import Object
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ret_jc = Object(noinstance=True)
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else:
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from .reflect import autoclass
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ret_jc = autoclass(r.replace('/', '.'))(noinstance=True)
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else:
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ret_jc = jclass_register[r](noinstance=True)
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ret_jc.instanciate_from(create_local_ref(j_env, j_object))
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return ret_jc
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cdef convert_jarray_to_python(JNIEnv *j_env, definition, jobject j_object):
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cdef jboolean iscopy
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cdef jboolean *j_booleans
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cdef jbyte *j_bytes
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cdef jchar *j_chars
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cdef jshort *j_shorts
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cdef jint *j_ints
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cdef jlong *j_longs
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cdef jfloat *j_floats
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cdef jdouble *j_doubles
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cdef object ret = None
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cdef jsize array_size
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cdef int i
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cdef jobject j_object_item
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cdef char *c_str
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cdef bytes py_str
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cdef JavaObject ret_jobject
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cdef JavaClass ret_jc
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cdef ByteArray ret_as_bytearray
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if j_object == NULL:
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return None
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array_size = j_env[0].GetArrayLength(j_env, j_object)
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r = definition[0]
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if r == 'Z':
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j_booleans = j_env[0].GetBooleanArrayElements(
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j_env, j_object, &iscopy)
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ret = [(True if j_booleans[i] else False)
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for i in range(array_size)]
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j_env[0].ReleaseBooleanArrayElements(
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j_env, j_object, j_booleans, 0)
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elif r == 'B':
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j_bytes = j_env[0].GetByteArrayElements(
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j_env, j_object, &iscopy)
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ret_as_bytearray = ByteArray()
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ret_as_bytearray.set_buffer(j_env, j_object, array_size, j_bytes)
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return ret_as_bytearray
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elif r == 'C':
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j_chars = j_env[0].GetCharArrayElements(
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j_env, j_object, &iscopy)
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ret = [chr(<char>j_chars[i]) for i in range(array_size)]
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j_env[0].ReleaseCharArrayElements(
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j_env, j_object, j_chars, 0)
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elif r == 'S':
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j_shorts = j_env[0].GetShortArrayElements(
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j_env, j_object, &iscopy)
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ret = [(<short>j_shorts[i]) for i in range(array_size)]
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j_env[0].ReleaseShortArrayElements(
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j_env, j_object, j_shorts, 0)
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elif r == 'I':
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j_ints = j_env[0].GetIntArrayElements(
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j_env, j_object, &iscopy)
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ret = [(<int>j_ints[i]) for i in range(array_size)]
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j_env[0].ReleaseIntArrayElements(
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j_env, j_object, j_ints, 0)
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elif r == 'J':
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j_longs = j_env[0].GetLongArrayElements(
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j_env, j_object, &iscopy)
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ret = [(<long>j_longs[i]) for i in range(array_size)]
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j_env[0].ReleaseLongArrayElements(
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j_env, j_object, j_longs, 0)
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elif r == 'F':
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j_floats = j_env[0].GetFloatArrayElements(
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j_env, j_object, &iscopy)
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ret = [(<float>j_floats[i]) for i in range(array_size)]
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j_env[0].ReleaseFloatArrayElements(
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j_env, j_object, j_floats, 0)
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elif r == 'D':
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j_doubles = j_env[0].GetDoubleArrayElements(
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j_env, j_object, &iscopy)
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ret = [(<double>j_doubles[i]) for i in range(array_size)]
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j_env[0].ReleaseDoubleArrayElements(
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j_env, j_object, j_doubles, 0)
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elif r == 'L':
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r = definition[1:-1]
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ret = []
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for i in range(array_size):
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j_object_item = j_env[0].GetObjectArrayElement(
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j_env, j_object, i)
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if j_object_item == NULL:
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ret.append(None)
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continue
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obj = convert_jobject_to_python(j_env, definition, j_object_item)
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ret.append(obj)
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j_env[0].DeleteLocalRef(j_env, j_object_item)
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elif r == '[':
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r = definition[1:]
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ret = []
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for i in range(array_size):
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j_object_item = j_env[0].GetObjectArrayElement(
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j_env, j_object, i)
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if j_object_item == NULL:
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ret.append(None)
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continue
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obj = convert_jarray_to_python(j_env, r, j_object_item)
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ret.append(obj)
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j_env[0].DeleteLocalRef(j_env, j_object_item)
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else:
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raise JavaException('Invalid return definition for array')
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return ret
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cdef jobject convert_python_to_jobject(JNIEnv *j_env, definition, obj) except *:
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cdef jobject retobject, retsubobject
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cdef jclass retclass
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cdef jmethodID redmidinit
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cdef jvalue j_ret[1]
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cdef JavaClass jc
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cdef JavaObject jo
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cdef JavaClassStorage jcs
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cdef PythonJavaClass pc
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cdef int index
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if definition[0] == 'V':
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return NULL
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elif definition[0] == 'L':
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if obj is None:
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return NULL
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elif isinstance(obj, basestring) and jstringy_arg(definition):
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return j_env[0].NewStringUTF(j_env, <char *><bytes>obj)
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elif isinstance(obj, str) and PY_MAJOR_VERSION >= 3 and jstringy_arg(definition):
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utf8 = obj.encode('utf-8')
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return j_env[0].NewStringUTF(j_env, <char *><bytes>utf8)
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elif isinstance(obj, (int, long)) and \
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definition in (
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'Ljava/lang/Integer;',
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'Ljava/lang/Number;',
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'Ljava/lang/Long;',
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'Ljava/lang/Object;'):
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j_ret[0].i = obj
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retclass = j_env[0].FindClass(j_env, 'java/lang/Integer')
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retmidinit = j_env[0].GetMethodID(j_env, retclass, '<init>', '(I)V')
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retobject = j_env[0].NewObjectA(j_env, retclass, retmidinit, j_ret)
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return retobject
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elif isinstance(obj, type):
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jc = obj
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return jc.j_cls
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elif isinstance(obj, JavaClass):
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jc = obj
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check_assignable_from(j_env, jc, definition[1:-1])
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return jc.j_self.obj
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elif isinstance(obj, JavaObject):
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jo = obj
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return jo.obj
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elif isinstance(obj, MetaJavaClass):
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jcs = obj.__cls_storage
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return jcs.j_cls
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elif isinstance(obj, PythonJavaClass):
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# from python class, get the proxy/python class
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pc = obj
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# get the java class
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jc = pc.j_self
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# get the localref
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return jc.j_self.obj
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elif isinstance(obj, (tuple, list)):
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return convert_pyarray_to_java(j_env, definition, obj)
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else:
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raise JavaException('Invalid python object for this '
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'argument. Want {0!r}, got {1!r}'.format(
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definition[1:-1], obj))
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elif definition[0] == '[':
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if PY_MAJOR_VERSION < 3:
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conversions = {
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int: 'I',
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bool: 'Z',
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long: 'J',
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float: 'F',
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basestring: 'Ljava/lang/String;',
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}
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else:
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conversions = {
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int: 'I',
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bool: 'Z',
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long: 'J',
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float: 'F',
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str: 'Ljava/lang/String;',
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bytes: 'B'
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}
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retclass = j_env[0].FindClass(j_env, 'java/lang/Object')
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retobject = j_env[0].NewObjectArray(j_env, len(obj), retclass, NULL)
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for index, item in enumerate(obj):
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item_definition = conversions.get(type(item), definition[1:])
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retsubobject = convert_python_to_jobject(
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j_env, item_definition, item)
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j_env[0].SetObjectArrayElement(j_env, retobject, index,
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retsubobject)
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return retobject
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elif definition == 'B':
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retclass = j_env[0].FindClass(j_env, 'java/lang/Byte')
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retmidinit = j_env[0].GetMethodID(j_env, retclass, '<init>', '(B)V')
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j_ret[0].b = obj
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elif definition == 'S':
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retclass = j_env[0].FindClass(j_env, 'java/lang/Short')
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retmidinit = j_env[0].GetMethodID(j_env, retclass, '<init>', '(S)V')
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j_ret[0].s = obj
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elif definition == 'I':
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retclass = j_env[0].FindClass(j_env, 'java/lang/Integer')
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retmidinit = j_env[0].GetMethodID(j_env, retclass, '<init>', '(I)V')
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j_ret[0].i = int(obj)
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elif definition == 'J':
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retclass = j_env[0].FindClass(j_env, 'java/lang/Long')
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retmidinit = j_env[0].GetMethodID(j_env, retclass, '<init>', '(J)V')
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j_ret[0].j = obj
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elif definition == 'F':
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retclass = j_env[0].FindClass(j_env, 'java/lang/Float')
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retmidinit = j_env[0].GetMethodID(j_env, retclass, '<init>', '(F)V')
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j_ret[0].f = obj
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elif definition == 'D':
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retclass = j_env[0].FindClass(j_env, 'java/lang/Double')
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retmidinit = j_env[0].GetMethodID(j_env, retclass, '<init>', '(D)V')
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j_ret[0].d = obj
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elif definition == 'C':
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retclass = j_env[0].FindClass(j_env, 'java/lang/Char')
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retmidinit = j_env[0].GetMethodID(j_env, retclass, '<init>', '(C)V')
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j_ret[0].c = ord(obj)
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elif definition == 'Z':
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retclass = j_env[0].FindClass(j_env, 'java/lang/Boolean')
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retmidinit = j_env[0].GetMethodID(j_env, retclass, '<init>', '(Z)V')
|
|
j_ret[0].z = 1 if obj else 0
|
|
else:
|
|
assert(0)
|
|
|
|
assert(retclass != NULL)
|
|
# XXX do we need a globalref or something ?
|
|
retobject = j_env[0].NewObjectA(j_env, retclass, retmidinit, j_ret)
|
|
return retobject
|
|
|
|
|
|
cdef jobject convert_pyarray_to_java(JNIEnv *j_env, definition, pyarray) except *:
|
|
cdef jobject ret = NULL
|
|
cdef int array_size = len(pyarray)
|
|
cdef int i
|
|
cdef unsigned char c_tmp
|
|
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 jstring j_string
|
|
cdef jclass j_class
|
|
cdef JavaObject jo
|
|
cdef JavaClass jc
|
|
|
|
cdef ByteArray a_bytes
|
|
|
|
|
|
if definition == 'Ljava/lang/Object;' and len(pyarray) > 0:
|
|
# then the method will accept any array type as param
|
|
# let's be as precise as we can
|
|
if PY_MAJOR_VERSION < 3:
|
|
conversions = {
|
|
int: 'I',
|
|
bool: 'Z',
|
|
long: 'J',
|
|
float: 'F',
|
|
basestring: 'Ljava/lang/String;',
|
|
}
|
|
else:
|
|
conversions = {
|
|
int: 'I',
|
|
bool: 'Z',
|
|
long: 'J',
|
|
float: 'F',
|
|
bytes: 'B',
|
|
str: 'Ljava/lang/String;',
|
|
}
|
|
for _type, override in conversions.iteritems():
|
|
if isinstance(pyarray[0], _type):
|
|
definition = override
|
|
break
|
|
|
|
if definition == 'Z':
|
|
ret = j_env[0].NewBooleanArray(j_env, array_size)
|
|
for i in range(array_size):
|
|
j_boolean = 1 if pyarray[i] else 0
|
|
j_env[0].SetBooleanArrayRegion(j_env,
|
|
ret, i, 1, &j_boolean)
|
|
|
|
elif definition == 'B':
|
|
ret = j_env[0].NewByteArray(j_env, array_size)
|
|
if isinstance(pyarray, ByteArray):
|
|
a_bytes = pyarray
|
|
j_env[0].SetByteArrayRegion(j_env,
|
|
ret, 0, array_size, a_bytes._buf)
|
|
else:
|
|
for i in range(array_size):
|
|
c_tmp = pyarray[i]
|
|
j_byte = <signed char>c_tmp
|
|
j_env[0].SetByteArrayRegion(j_env,
|
|
ret, i, 1, &j_byte)
|
|
|
|
elif definition == 'C':
|
|
ret = j_env[0].NewCharArray(j_env, array_size)
|
|
for i in range(array_size):
|
|
j_char = ord(pyarray[i])
|
|
j_env[0].SetCharArrayRegion(j_env,
|
|
ret, i, 1, &j_char)
|
|
|
|
elif definition == 'S':
|
|
ret = j_env[0].NewShortArray(j_env, array_size)
|
|
for i in range(array_size):
|
|
j_short = pyarray[i]
|
|
j_env[0].SetShortArrayRegion(j_env,
|
|
ret, i, 1, &j_short)
|
|
|
|
elif definition == 'I':
|
|
ret = j_env[0].NewIntArray(j_env, array_size)
|
|
for i in range(array_size):
|
|
j_int = pyarray[i]
|
|
j_env[0].SetIntArrayRegion(j_env,
|
|
ret, i, 1, <const_jint *>&j_int)
|
|
|
|
elif definition == 'J':
|
|
ret = j_env[0].NewLongArray(j_env, array_size)
|
|
for i in range(array_size):
|
|
j_long = pyarray[i]
|
|
j_env[0].SetLongArrayRegion(j_env,
|
|
ret, i, 1, &j_long)
|
|
|
|
elif definition == 'F':
|
|
ret = j_env[0].NewFloatArray(j_env, array_size)
|
|
for i in range(array_size):
|
|
j_float = pyarray[i]
|
|
j_env[0].SetFloatArrayRegion(j_env,
|
|
ret, i, 1, &j_float)
|
|
|
|
elif definition == 'D':
|
|
ret = j_env[0].NewDoubleArray(j_env, array_size)
|
|
for i in range(array_size):
|
|
j_double = pyarray[i]
|
|
j_env[0].SetDoubleArrayRegion(j_env,
|
|
ret, i, 1, &j_double)
|
|
|
|
elif definition[0] == 'L':
|
|
defstr = str_for_c(definition[1:-1])
|
|
j_class = j_env[0].FindClass(
|
|
j_env, <bytes>defstr)
|
|
if j_class == NULL:
|
|
raise JavaException('Cannot create array with a class not '
|
|
'found {0!r}'.format(definition[1:-1]))
|
|
ret = j_env[0].NewObjectArray(
|
|
j_env, array_size, j_class, NULL)
|
|
for i in range(array_size):
|
|
arg = pyarray[i]
|
|
if arg is None:
|
|
j_env[0].SetObjectArrayElement(
|
|
j_env, <jobjectArray>ret, i, NULL)
|
|
elif isinstance(arg, basestring) and PY_MAJOR_VERSION < 3 and \
|
|
jstringy_arg(definition):
|
|
j_string = j_env[0].NewStringUTF(
|
|
j_env, <bytes>arg)
|
|
j_env[0].SetObjectArrayElement(
|
|
j_env, <jobjectArray>ret, i, j_string)
|
|
elif isinstance(arg, str) and PY_MAJOR_VERSION >= 3 and \
|
|
jstringy_arg(definition):
|
|
utf8 = arg.encode('utf-8')
|
|
j_string = j_env[0].NewStringUTF(
|
|
j_env, <bytes>utf8)
|
|
j_env[0].SetObjectArrayElement(
|
|
j_env, <jobjectArray>ret, i, j_string)
|
|
elif isinstance(arg, JavaClass):
|
|
jc = arg
|
|
check_assignable_from(j_env, jc, definition[1:-1])
|
|
j_env[0].SetObjectArrayElement(
|
|
j_env, <jobjectArray>ret, i, jc.j_self.obj)
|
|
elif isinstance(arg, type):
|
|
jc = arg
|
|
j_env[0].SetObjectArrayElement(
|
|
j_env, <jobjectArray>ret, i, jc.j_cls)
|
|
elif isinstance(arg, JavaObject):
|
|
jo = arg
|
|
j_env[0].SetObjectArrayElement(
|
|
j_env, <jobjectArray>ret, i, jo.obj)
|
|
else:
|
|
raise JavaException('Invalid variable used for L array', definition, pyarray)
|
|
|
|
elif definition[0] == '[':
|
|
subdef = definition[1:]
|
|
eproto = convert_pyarray_to_java(j_env, subdef, pyarray[0])
|
|
ret = j_env[0].NewObjectArray(
|
|
j_env, array_size, j_env[0].GetObjectClass(j_env, eproto), NULL)
|
|
j_env[0].SetObjectArrayElement(
|
|
j_env, <jobjectArray>ret, 0, eproto)
|
|
for i in range(1, array_size):
|
|
j_env[0].SetObjectArrayElement(
|
|
j_env, <jobjectArray>ret, i, convert_pyarray_to_java(j_env, subdef, pyarray[i]))
|
|
|
|
else:
|
|
raise JavaException('Invalid array definition', definition, pyarray)
|
|
|
|
return <jobject>ret
|