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# *****************************************************************************
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# See NOTICE file for details.
#
# *****************************************************************************
import jpype
import common
import sys
class MyImpl(object):
def blah(self):
pass
class ClassProxy:
def __init__(self, proxy):
self.proxy = proxy
class ArrayProxy:
def __init__(self, proxy):
self.proxy = proxy
class StringProxy:
def __init__(self, proxy):
self.proxy = proxy
class ClassHintsTestCase(common.JPypeTestCase):
def setUp(self):
common.JPypeTestCase.setUp(self)
self.Custom = jpype.JClass("jpype.classhints.Custom")
self.ClassHintsTest = jpype.JClass("jpype.classhints.ClassHintsTest")
@jpype.JImplements("jpype.classhints.Custom")
class MyCustom(object):
def __init__(self, arg):
self.arg = arg
self.MyCustom = MyCustom
def testCharSequence(self):
Instant = jpype.JClass("java.time.Instant")
s = "2019-12-21T05:26:13.223189Z"
self.assertTrue(str(Instant.parse(s)), s)
def testInstant(self):
import datetime
if sys.version_info.major == 3 and sys.version_info.minor < 12:
now = datetime.datetime.utcnow()
else:
now = datetime.datetime.now(datetime.UTC)
Instant = jpype.JClass("java.time.Instant")
self.assertIsInstance(jpype.JObject(now, Instant), Instant)
def testPath(self):
import pathlib
JPath = jpype.JClass("java.nio.file.Path")
self.assertIsInstance(jpype.JObject(
pathlib.Path(__file__).absolute(), JPath), JPath)
def testFile(self):
import pathlib
JFile = jpype.JClass("java.io.File")
self.assertIsInstance(jpype.JObject(
pathlib.Path(__file__).absolute(), JFile), JFile)
def testConvertExact(self):
cht = self.ClassHintsTest
with self.assertRaises(TypeError):
cht.call("hello")
@jpype.JConversion(self.Custom, exact=str)
def StrToCustom(jcls, args):
return self.MyCustom(args)
cht.call("hello")
self.assertIsInstance(cht.input, self.MyCustom)
self.assertEqual(cht.input.arg, "hello")
def testConvertAttribute(self):
cht = self.ClassHintsTest
with self.assertRaises(TypeError):
cht.call(MyImpl())
@jpype.JConversion(self.Custom, attribute="blah")
def StrToCustom(jcls, args):
return self.MyCustom(args)
cht.call(MyImpl())
self.assertIsInstance(cht.input, self.MyCustom)
self.assertIsInstance(cht.input.arg, MyImpl)
def testClassCustomizer(self):
@jpype.JConversion("java.lang.Class", instanceof=ClassProxy)
def ClassCustomizer(jcls, obj):
return obj.proxy
hints = jpype.JClass('java.lang.Class')._hints
self.assertTrue(ClassProxy in hints.implicit)
def testArrayCustomizer(self):
@jpype.JConversion(jpype.JInt[:], instanceof=ArrayProxy)
def ArrayCustomizer(jcls, obj):
return obj.proxy
hints = jpype.JClass(jpype.JInt[:])._hints
self.assertTrue(ArrayProxy in hints.implicit)
def testStringCustomizer(self):
@jpype.JConversion("java.lang.String", instanceof=StringProxy)
def STringCustomizer(jcls, obj):
return obj.proxy
hints = jpype.JClass("java.lang.String")._hints
self.assertTrue(StringProxy in hints.implicit)
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