mirror of https://github.com/kivy/pyjnius.git
refactor the conversion functions, move them into jnius_conversion.pxi, and factorize the jobject conversion.
This commit is contained in:
Mathieu Virbel
parent
a4af093aa1
commit
69fe77c403
439
jnius/jnius.pyx
439
jnius/jnius.pyx
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@ -96,6 +96,7 @@ IF JNIUS_PLATFORM == "android":
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include "jnius_jvm_android.pxi"
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ELSE:
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include "jnius_jvm_desktop.pxi"
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include "jnius_conversion.pxi"
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cdef parse_definition(definition):
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@ -130,320 +131,6 @@ cdef parse_definition(definition):
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return ret, args
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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 obj
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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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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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if iscopy:
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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 = [(<char>j_bytes[i]) for i in range(array_size)]
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if iscopy:
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j_env[0].ReleaseByteArrayElements(
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j_env, j_object, j_bytes, 0)
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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 = [(<char>j_chars[i]) for i in range(array_size)]
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if iscopy:
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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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if iscopy:
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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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if iscopy:
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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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if iscopy:
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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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if iscopy:
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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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if iscopy:
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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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if r == 'java/lang/String':
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for i in range(array_size):
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obj = j_env[0].GetObjectArrayElement(
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j_env, j_object, i)
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if obj == NULL:
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ret.append(None)
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continue
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c_str = <char *>j_env[0].GetStringUTFChars(
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j_env, obj, NULL)
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py_str = <bytes>c_str
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j_env[0].ReleaseStringUTFChars(
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j_env, j_object, c_str)
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ret.append(py_str)
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j_env[0].DeleteLocalRef(j_env, obj)
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elif r in jclass_register:
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for i in range(array_size):
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obj = j_env[0].GetObjectArrayElement(
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j_env, j_object, i)
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ret_jc = jclass_register[r](noinstance=True)
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ret_jc.instanciate_from(obj)
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ret.append(ret_jc)
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j_env[0].DeleteLocalRef(j_env, obj)
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else:
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for i in range(array_size):
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obj = j_env[0].GetObjectArrayElement(
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j_env, j_object, i)
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if obj == NULL:
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ret.append(None)
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continue
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ret_jobject = JavaObject()
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ret_jobject.obj = obj
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ret.append(ret_jobject)
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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 void release_args(JNIEnv *j_env, list 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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argtype in ('Ljava/lang/String;', 'Ljava/lang/Object;'):
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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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j_env[0].DeleteLocalRef(j_env, j_args[index].l)
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cdef void populate_args(JNIEnv *j_env, list 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 == '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) and \
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argtype in ('Ljava/lang/String;', 'Ljava/lang/Object;'):
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j_args[index].l = j_env[0].NewStringUTF(
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j_env, <char *><bytes>py_arg)
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elif isinstance(py_arg, JavaClass):
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jc = py_arg
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if argtype != 'Ljava/lang/Object;' and jc.__javaclass__ != argtype[1:-1]:
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raise JavaException('Invalid class argument, want '
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'{0!r}, got {1!r}'.format(
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argtype[1:-1], jc.__javaclass__))
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j_args[index].l = jc.j_self
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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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raise JavaException('JavaObject needed for argument '
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'{0}'.format(index))
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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 not isinstance(py_arg, list) and \
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not isinstance(py_arg, tuple):
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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 jobject convert_pyarray_to_java(JNIEnv *j_env, definition, pyarray) except *:
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cdef jobject ret = NULL
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cdef int array_size = len(pyarray)
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cdef int i
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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 jstring j_string
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cdef jclass j_class
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cdef JavaObject jo
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cdef JavaClass jc
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if definition == 'Z':
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ret = j_env[0].NewBooleanArray(j_env, array_size)
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for i in range(array_size):
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j_boolean = 1 if pyarray[i] else 0
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j_env[0].SetBooleanArrayRegion(j_env,
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ret, i, 1, &j_boolean)
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elif definition == 'B':
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ret = j_env[0].NewByteArray(j_env, array_size)
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for i in range(array_size):
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j_byte = pyarray[i]
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j_env[0].SetByteArrayRegion(j_env,
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ret, i, 1, &j_byte)
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elif definition == 'C':
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ret = j_env[0].NewCharArray(j_env, array_size)
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for i in range(array_size):
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j_char = ord(pyarray[i])
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j_env[0].SetCharArrayRegion(j_env,
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ret, i, 1, &j_char)
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elif definition == 'S':
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ret = j_env[0].NewShortArray(j_env, array_size)
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for i in range(array_size):
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j_short = pyarray[i]
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j_env[0].SetShortArrayRegion(j_env,
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ret, i, 1, &j_short)
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elif definition == 'I':
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ret = j_env[0].NewIntArray(j_env, array_size)
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for i in range(array_size):
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j_int = pyarray[i]
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j_env[0].SetIntArrayRegion(j_env,
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ret, i, 1, <const_jint *>&j_int)
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elif definition == 'J':
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ret = j_env[0].NewLongArray(j_env, array_size)
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for i in range(array_size):
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j_long = pyarray[i]
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j_env[0].SetLongArrayRegion(j_env,
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ret, i, 1, &j_long)
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elif definition == 'F':
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ret = j_env[0].NewFloatArray(j_env, array_size)
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for i in range(array_size):
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j_float = pyarray[i]
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j_env[0].SetFloatArrayRegion(j_env,
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ret, i, 1, &j_float)
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elif definition == 'D':
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ret = j_env[0].NewDoubleArray(j_env, array_size)
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for i in range(array_size):
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j_double = pyarray[i]
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j_env[0].SetDoubleArrayRegion(j_env,
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ret, i, 1, &j_double)
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elif definition[0] == 'L':
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j_class = j_env[0].FindClass(
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j_env, <bytes>definition[1:-1])
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if j_class == NULL:
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raise JavaException('Cannot create array with a class not '
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'found {0!r}'.format(definition[1:-1]))
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ret = j_env[0].NewObjectArray(
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j_env, array_size, j_class, NULL)
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for i in range(array_size):
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arg = pyarray[i]
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if arg is None:
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j_env[0].SetObjectArrayElement(
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j_env, <jobjectArray>ret, i, NULL)
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elif isinstance(arg, basestring) and \
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definition == 'Ljava/lang/String;':
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j_string = j_env[0].NewStringUTF(
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j_env, <bytes>arg)
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j_env[0].SetObjectArrayElement(
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j_env, <jobjectArray>ret, i, j_string)
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elif isinstance(arg, JavaClass):
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jc = arg
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if jc.__javaclass__ != definition[1:-1]:
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raise JavaException('Invalid class argument, want '
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'{0!r}, got {1!r}'.format(
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definition[1:-1],
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jc.__javaclass__))
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j_env[0].SetObjectArrayElement(
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j_env, <jobjectArray>ret, i, jc.j_self)
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elif isinstance(arg, JavaObject):
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jo = arg
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j_env[0].SetObjectArrayElement(
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j_env, <jobjectArray>ret, i, jo.obj)
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else:
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raise JavaException('Invalid variable used for L array')
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else:
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raise JavaException('Invalid array definition')
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return <jobject>ret
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cdef void check_exception(JNIEnv *j_env) except *:
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cdef jthrowable exc = j_env[0].ExceptionOccurred(j_env)
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@ -759,33 +446,17 @@ cdef class JavaField(object):
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elif r == 'L':
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j_object = self.j_env[0].GetObjectField(
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self.j_env, self.j_self, self.j_field)
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if j_object == NULL:
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return None
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r = self.definition[1:-1]
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if r == 'java/lang/Object':
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r = lookup_java_object_name(self.j_env, j_object)
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if r == 'java/lang/String':
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c_str = <char *>self.j_env[0].GetStringUTFChars(
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self.j_env, j_object, NULL)
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py_str = <bytes>c_str
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self.j_env[0].ReleaseStringUTFChars(
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self.j_env, j_object, c_str)
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ret = py_str
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elif r in jclass_register:
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ret_jc = jclass_register[r](noinstance=True)
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ret_jc.instanciate_from(j_object)
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ret = ret_jc
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else:
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ret_jobject = JavaObject()
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ret_jobject.obj = self.j_env[0].NewLocalRef(self.j_env, j_object)
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ret = ret_jobject
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self.j_env[0].DeleteLocalRef(self.j_env, j_object)
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if j_object != NULL:
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ret = convert_jobject_to_python(
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self.j_env, self.definition, j_object)
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self.j_env[0].DeleteLocalRef(self.j_env, j_object)
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elif r == '[':
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r = self.definition[1:]
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j_object = self.j_env[0].GetObjectField(
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self.j_env, self.j_self, self.j_field)
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ret = convert_jarray_to_python(self.j_env, r, j_object)
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self.j_env[0].DeleteLocalRef(self.j_env, j_object)
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if j_object != NULL:
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ret = convert_jarray_to_python(self.j_env, r, j_object)
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self.j_env[0].DeleteLocalRef(self.j_env, j_object)
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else:
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raise Exception('Invalid field definition')
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@ -802,11 +473,7 @@ cdef class JavaField(object):
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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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# return type of the java method
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r = self.definition[0]
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@ -847,33 +514,17 @@ cdef class JavaField(object):
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elif r == 'L':
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j_object = self.j_env[0].GetStaticObjectField(
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self.j_env, self.j_self, self.j_field)
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if j_object == NULL:
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return None
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r = self.definition[1:-1]
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if r == 'java/lang/Object':
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r = lookup_java_object_name(self.j_env, j_object)
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if r == 'java/lang/String':
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c_str = <char *>self.j_env[0].GetStringUTFChars(
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self.j_env, j_object, NULL)
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py_str = <bytes>c_str
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self.j_env[0].ReleaseStringUTFChars(
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self.j_env, j_object, c_str)
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ret = py_str
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elif r in jclass_register:
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ret_jc = jclass_register[r](noinstance=True)
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ret_jc.instanciate_from(j_object)
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ret = ret_jc
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else:
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ret_jobject = JavaObject()
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ret_jobject.obj = self.j_env[0].NewLocalRef(self.j_env, j_object)
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ret = ret_jobject
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self.j_env[0].DeleteLocalRef(self.j_env, j_object)
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if j_object != NULL:
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ret = convert_jobject_to_python(
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self.j_env, self.definition, j_object)
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self.j_env[0].DeleteLocalRef(self.j_env, j_object)
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elif r == '[':
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r = self.definition[1:]
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j_object = self.j_env[0].GetStaticObjectField(
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self.j_env, self.j_self, self.j_field)
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ret = convert_jarray_to_python(self.j_env, r, j_object)
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self.j_env[0].DeleteLocalRef(self.j_env, j_object)
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if j_object != NULL:
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ret = convert_jarray_to_python(self.j_env, r, j_object)
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self.j_env[0].DeleteLocalRef(self.j_env, j_object)
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else:
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raise Exception('Invalid field definition')
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||||
|
||||
|
|
@ -1032,34 +683,17 @@ cdef class JavaMethod(object):
|
|||
elif r == 'L':
|
||||
j_object = self.j_env[0].CallObjectMethodA(
|
||||
self.j_env, self.j_self, self.j_method, j_args)
|
||||
check_exception(self.j_env)
|
||||
if j_object == NULL:
|
||||
return None
|
||||
r = self.definition_return[1:-1]
|
||||
if r == 'java/lang/Object':
|
||||
r = lookup_java_object_name(self.j_env, j_object)
|
||||
if r == 'java/lang/String':
|
||||
c_str = <char *>self.j_env[0].GetStringUTFChars(
|
||||
self.j_env, j_object, NULL)
|
||||
py_str = <bytes>c_str
|
||||
self.j_env[0].ReleaseStringUTFChars(
|
||||
self.j_env, j_object, c_str)
|
||||
ret = py_str
|
||||
elif r in jclass_register:
|
||||
ret_jc = jclass_register[r](noinstance=True)
|
||||
ret_jc.instanciate_from(j_object)
|
||||
ret = ret_jc
|
||||
else:
|
||||
ret_jobject = JavaObject()
|
||||
ret_jobject.obj = self.j_env[0].NewLocalRef(self.j_env, j_object)
|
||||
ret = ret_jobject
|
||||
self.j_env[0].DeleteLocalRef(self.j_env, j_object)
|
||||
if j_object != NULL:
|
||||
ret = convert_jobject_to_python(
|
||||
self.j_env, self.definition_return, j_object)
|
||||
self.j_env[0].DeleteLocalRef(self.j_env, j_object)
|
||||
elif r == '[':
|
||||
r = self.definition_return[1:]
|
||||
j_object = self.j_env[0].CallObjectMethodA(
|
||||
self.j_env, self.j_self, self.j_method, j_args)
|
||||
ret = convert_jarray_to_python(self.j_env, r, j_object)
|
||||
self.j_env[0].DeleteLocalRef(self.j_env, j_object)
|
||||
if j_object != NULL:
|
||||
ret = convert_jarray_to_python(self.j_env, r, j_object)
|
||||
self.j_env[0].DeleteLocalRef(self.j_env, j_object)
|
||||
else:
|
||||
raise Exception('Invalid return definition?')
|
||||
|
||||
|
|
@ -1122,34 +756,19 @@ cdef class JavaMethod(object):
|
|||
self.j_env, self.j_cls, self.j_method, j_args)
|
||||
ret = <double>j_double
|
||||
elif r == 'L':
|
||||
# accept only string for the moment
|
||||
j_object = self.j_env[0].CallStaticObjectMethodA(
|
||||
self.j_env, self.j_cls, self.j_method, j_args)
|
||||
r = self.definition_return[1:-1]
|
||||
if r == 'java/lang/Object':
|
||||
r = lookup_java_object_name(self.j_env, j_object)
|
||||
if r == 'java/lang/String':
|
||||
c_str = <char *>self.j_env[0].GetStringUTFChars(
|
||||
self.j_env, j_object, NULL)
|
||||
py_str = <bytes>c_str
|
||||
self.j_env[0].ReleaseStringUTFChars(
|
||||
self.j_env, j_object, c_str)
|
||||
ret = py_str
|
||||
elif r in jclass_register:
|
||||
ret_jc = jclass_register[r](noinstance=True)
|
||||
ret_jc.instanciate_from(j_object)
|
||||
ret = ret_jc
|
||||
else:
|
||||
ret_jobject = JavaObject()
|
||||
ret_jobject.obj = self.j_env[0].NewLocalRef(self.j_env, j_object)
|
||||
ret = ret_jobject
|
||||
self.j_env[0].DeleteLocalRef(self.j_env, j_object)
|
||||
if j_object != NULL:
|
||||
ret = convert_jobject_to_python(
|
||||
self.j_env, self.definition_return, j_object)
|
||||
self.j_env[0].DeleteLocalRef(self.j_env, j_object)
|
||||
elif r == '[':
|
||||
r = self.definition_return[1:]
|
||||
j_object = self.j_env[0].CallStaticObjectMethodA(
|
||||
self.j_env, self.j_cls, self.j_method, j_args)
|
||||
ret = convert_jarray_to_python(self.j_env, r, j_object)
|
||||
self.j_env[0].DeleteLocalRef(self.j_env, j_object)
|
||||
if j_object != NULL:
|
||||
ret = convert_jarray_to_python(self.j_env, r, j_object)
|
||||
self.j_env[0].DeleteLocalRef(self.j_env, j_object)
|
||||
else:
|
||||
raise Exception('Invalid return definition?')
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1,325 @@
|
|||
|
||||
cdef convert_jobject_to_python(JNIEnv *j_env, bytes definition, jobject j_object):
|
||||
# Convert a Java Object to a Python object, according to the definition.
|
||||
# If the definition is a java/lang/Object, then try to determine what is it
|
||||
# exactly.
|
||||
cdef char *c_str
|
||||
cdef bytes py_str
|
||||
cdef bytes r = definition[1:-1]
|
||||
cdef JavaObject ret_jobject
|
||||
cdef JavaClass ret_jc
|
||||
|
||||
# we got a generic object -> lookup for the real name instead.
|
||||
if r == 'java/lang/Object':
|
||||
r = lookup_java_object_name(j_env, j_object)
|
||||
|
||||
# if we got a string, just convert back to Python str.
|
||||
if r == 'java/lang/String':
|
||||
c_str = <char *>j_env[0].GetStringUTFChars(j_env, j_object, NULL)
|
||||
py_str = <bytes>c_str
|
||||
j_env[0].ReleaseStringUTFChars(j_env, j_object, c_str)
|
||||
return py_str
|
||||
|
||||
# if the class is already in our register, use it
|
||||
if r in jclass_register:
|
||||
ret_jc = jclass_register[r](noinstance=True)
|
||||
ret_jc.instanciate_from(j_object)
|
||||
return ret_jc
|
||||
|
||||
# otherwise, return a generic object, without any reflection.
|
||||
ret_jobject = JavaObject()
|
||||
ret_jobject.obj = j_env[0].NewLocalRef(j_env, j_object)
|
||||
return ret_jobject
|
||||
|
||||
|
||||
cdef convert_jarray_to_python(JNIEnv *j_env, definition, jobject j_object):
|
||||
cdef jboolean iscopy
|
||||
cdef jboolean *j_booleans
|
||||
cdef jbyte *j_bytes
|
||||
cdef jchar *j_chars
|
||||
cdef jshort *j_shorts
|
||||
cdef jint *j_ints
|
||||
cdef jlong *j_longs
|
||||
cdef jfloat *j_floats
|
||||
cdef jdouble *j_doubles
|
||||
cdef object ret = None
|
||||
cdef jsize array_size
|
||||
|
||||
cdef int i
|
||||
cdef jobject j_object_item
|
||||
cdef char *c_str
|
||||
cdef bytes py_str
|
||||
cdef JavaObject ret_jobject
|
||||
cdef JavaClass ret_jc
|
||||
|
||||
if j_object == NULL:
|
||||
return None
|
||||
|
||||
array_size = j_env[0].GetArrayLength(j_env, j_object)
|
||||
|
||||
r = definition[0]
|
||||
if r == 'Z':
|
||||
j_booleans = j_env[0].GetBooleanArrayElements(
|
||||
j_env, j_object, &iscopy)
|
||||
ret = [(True if j_booleans[i] else False)
|
||||
for i in range(array_size)]
|
||||
if iscopy:
|
||||
j_env[0].ReleaseBooleanArrayElements(
|
||||
j_env, j_object, j_booleans, 0)
|
||||
|
||||
elif r == 'B':
|
||||
j_bytes = j_env[0].GetByteArrayElements(
|
||||
j_env, j_object, &iscopy)
|
||||
ret = [(<char>j_bytes[i]) for i in range(array_size)]
|
||||
if iscopy:
|
||||
j_env[0].ReleaseByteArrayElements(
|
||||
j_env, j_object, j_bytes, 0)
|
||||
|
||||
elif r == 'C':
|
||||
j_chars = j_env[0].GetCharArrayElements(
|
||||
j_env, j_object, &iscopy)
|
||||
ret = [(<char>j_chars[i]) for i in range(array_size)]
|
||||
if iscopy:
|
||||
j_env[0].ReleaseCharArrayElements(
|
||||
j_env, j_object, j_chars, 0)
|
||||
|
||||
elif r == 'S':
|
||||
j_shorts = j_env[0].GetShortArrayElements(
|
||||
j_env, j_object, &iscopy)
|
||||
ret = [(<short>j_shorts[i]) for i in range(array_size)]
|
||||
if iscopy:
|
||||
j_env[0].ReleaseShortArrayElements(
|
||||
j_env, j_object, j_shorts, 0)
|
||||
|
||||
elif r == 'I':
|
||||
j_ints = j_env[0].GetIntArrayElements(
|
||||
j_env, j_object, &iscopy)
|
||||
ret = [(<int>j_ints[i]) for i in range(array_size)]
|
||||
if iscopy:
|
||||
j_env[0].ReleaseIntArrayElements(
|
||||
j_env, j_object, j_ints, 0)
|
||||
|
||||
elif r == 'J':
|
||||
j_longs = j_env[0].GetLongArrayElements(
|
||||
j_env, j_object, &iscopy)
|
||||
ret = [(<long>j_longs[i]) for i in range(array_size)]
|
||||
if iscopy:
|
||||
j_env[0].ReleaseLongArrayElements(
|
||||
j_env, j_object, j_longs, 0)
|
||||
|
||||
elif r == 'F':
|
||||
j_floats = j_env[0].GetFloatArrayElements(
|
||||
j_env, j_object, &iscopy)
|
||||
ret = [(<float>j_floats[i]) for i in range(array_size)]
|
||||
if iscopy:
|
||||
j_env[0].ReleaseFloatArrayElements(
|
||||
j_env, j_object, j_floats, 0)
|
||||
|
||||
elif r == 'D':
|
||||
j_doubles = j_env[0].GetDoubleArrayElements(
|
||||
j_env, j_object, &iscopy)
|
||||
ret = [(<double>j_doubles[i]) for i in range(array_size)]
|
||||
if iscopy:
|
||||
j_env[0].ReleaseDoubleArrayElements(
|
||||
j_env, j_object, j_doubles, 0)
|
||||
|
||||
elif r == 'L':
|
||||
r = definition[1:-1]
|
||||
ret = []
|
||||
for i in range(array_size):
|
||||
j_object_item = j_env[0].GetObjectArrayElement(
|
||||
j_env, j_object, i)
|
||||
if j_object_item == NULL:
|
||||
ret.append(None)
|
||||
continue
|
||||
obj = convert_jobject_to_python(j_env, definition, j_object_item)
|
||||
ret.append(obj)
|
||||
j_env[0].DeleteLocalRef(j_env, j_object_item)
|
||||
else:
|
||||
raise JavaException('Invalid return definition for array')
|
||||
|
||||
return ret
|
||||
|
||||
cdef void release_args(JNIEnv *j_env, list definition_args, jvalue *j_args, args) except *:
|
||||
# do the conversion from a Python object to Java from a Java definition
|
||||
cdef JavaObject jo
|
||||
cdef JavaClass jc
|
||||
cdef int index
|
||||
for index, argtype in enumerate(definition_args):
|
||||
py_arg = args[index]
|
||||
if argtype[0] == 'L':
|
||||
if py_arg is None:
|
||||
j_args[index].l = NULL
|
||||
if isinstance(py_arg, basestring) and \
|
||||
argtype in ('Ljava/lang/String;', 'Ljava/lang/Object;'):
|
||||
j_env[0].DeleteLocalRef(j_env, j_args[index].l)
|
||||
elif argtype[0] == '[':
|
||||
j_env[0].DeleteLocalRef(j_env, j_args[index].l)
|
||||
|
||||
cdef void populate_args(JNIEnv *j_env, list definition_args, jvalue *j_args, args) except *:
|
||||
# do the conversion from a Python object to Java from a Java definition
|
||||
cdef JavaObject jo
|
||||
cdef JavaClass jc
|
||||
cdef int index
|
||||
for index, argtype in enumerate(definition_args):
|
||||
py_arg = args[index]
|
||||
if argtype == 'Z':
|
||||
j_args[index].z = py_arg
|
||||
elif argtype == 'B':
|
||||
j_args[index].b = py_arg
|
||||
elif argtype == 'C':
|
||||
j_args[index].c = ord(py_arg)
|
||||
elif argtype == 'S':
|
||||
j_args[index].s = py_arg
|
||||
elif argtype == 'I':
|
||||
j_args[index].i = py_arg
|
||||
elif argtype == 'J':
|
||||
j_args[index].j = py_arg
|
||||
elif argtype == 'F':
|
||||
j_args[index].f = py_arg
|
||||
elif argtype == 'D':
|
||||
j_args[index].d = py_arg
|
||||
elif argtype[0] == 'L':
|
||||
if py_arg is None:
|
||||
j_args[index].l = NULL
|
||||
elif isinstance(py_arg, basestring) and \
|
||||
argtype in ('Ljava/lang/String;', 'Ljava/lang/Object;'):
|
||||
j_args[index].l = j_env[0].NewStringUTF(
|
||||
j_env, <char *><bytes>py_arg)
|
||||
elif isinstance(py_arg, JavaClass):
|
||||
jc = py_arg
|
||||
if argtype != 'Ljava/lang/Object;' and jc.__javaclass__ != argtype[1:-1]:
|
||||
raise JavaException('Invalid class argument, want '
|
||||
'{0!r}, got {1!r}'.format(
|
||||
argtype[1:-1], jc.__javaclass__))
|
||||
j_args[index].l = jc.j_self
|
||||
elif isinstance(py_arg, JavaObject):
|
||||
jo = py_arg
|
||||
j_args[index].l = jo.obj
|
||||
raise JavaException('JavaObject needed for argument '
|
||||
'{0}'.format(index))
|
||||
else:
|
||||
raise JavaException('Invalid python object for this '
|
||||
'argument. Want {0!r}, got {1!r}'.format(
|
||||
argtype[1:-1], py_arg))
|
||||
elif argtype[0] == '[':
|
||||
if not isinstance(py_arg, list) and \
|
||||
not isinstance(py_arg, tuple):
|
||||
raise JavaException('Expecting a python list/tuple, got '
|
||||
'{0!r}'.format(py_arg))
|
||||
|
||||
j_args[index].l = convert_pyarray_to_java(
|
||||
j_env, argtype[1:], py_arg)
|
||||
|
||||
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 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
|
||||
|
||||
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)
|
||||
for i in range(array_size):
|
||||
j_byte = pyarray[i]
|
||||
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':
|
||||
j_class = j_env[0].FindClass(
|
||||
j_env, <bytes>definition[1:-1])
|
||||
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 \
|
||||
definition == 'Ljava/lang/String;':
|
||||
j_string = j_env[0].NewStringUTF(
|
||||
j_env, <bytes>arg)
|
||||
j_env[0].SetObjectArrayElement(
|
||||
j_env, <jobjectArray>ret, i, j_string)
|
||||
elif isinstance(arg, JavaClass):
|
||||
jc = arg
|
||||
if jc.__javaclass__ != definition[1:-1]:
|
||||
raise JavaException('Invalid class argument, want '
|
||||
'{0!r}, got {1!r}'.format(
|
||||
definition[1:-1],
|
||||
jc.__javaclass__))
|
||||
j_env[0].SetObjectArrayElement(
|
||||
j_env, <jobjectArray>ret, i, jc.j_self)
|
||||
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')
|
||||
|
||||
else:
|
||||
raise JavaException('Invalid array definition')
|
||||
|
||||
return <jobject>ret
|
||||
Loading…
Reference in New Issue