def startJVM(jvm, *args): """ Starts a Java Virtual Machine :param jvm: Path to the jvm library file (libjvm.so, jvm.dll, ...) :param args: Arguments to give to the JVM """ # Insert OS specific arguments first finder = get_jvm_finder() args = finder.normalize_arguments(jvm, list(args)) # Start the JVM _jpype.startup(jvm, tuple(args), True) # Initialize jPype _jclass._initialize() _jarray._initialize() _jwrapper._initialize() _jproxy._initialize() _jexception._initialize() _jcollection._initialize() _jobject._initialize() _properties._initialize() nio._initialize() reflect._initialize() # start the reference daemon thread if _usePythonThreadForDaemon: _refdaemon.startPython() else: _refdaemon.startJava()
def testStartupBadArg(self): with self.assertRaisesRegex(TypeError, "4 arguments"): _jpype.startup() with self.assertRaisesRegex(TypeError, "must be tuple"): _jpype.startup(object(), object(), True, True) with self.assertRaisesRegex(TypeError, "must be strings"): _jpype.startup("", (object(), ), True, True) with self.assertRaisesRegex(TypeError, "must be a string"): _jpype.startup(object(), tuple(), True, True) with self.assertRaisesRegex(OSError, "started"): _jpype.startup("", tuple(), True, True)
def startJVM(jvm, *args): """ Starts a Java Virtual Machine :param jvm: Path to the jvm library file (libjvm.so, jvm.dll, ...) :param args: Arguments to give to the JVM """ _jpype.startup(jvm, tuple(args), True) _initialize() # start the reference daemon thread if _usePythonThreadForDaemon: _refdaemon.startPython() else: _refdaemon.startJava()
def startJVM(jvm, *args) : _jpype.startup(jvm, tuple(args), True) _jclass._initialize() _jarray._initialize() _jwrapper._initialize() _jproxy._initialize() _jexception._initialize() _jcollection._initialize() _jobject._initialize() _properties._initialize() nio._initialize() reflect._initialize() # start the reference deamon thread if _usePythonThreadForDaemon : _refdaemon.startPython() else: _refdaemon.startJava()
def startJVM(jvm, *args): _jpype.startup(jvm, tuple(args), True) _jclass._initialize() _jarray._initialize() _jwrapper._initialize() _jproxy._initialize() _jexception._initialize() _jcollection._initialize() _jobject._initialize() _properties._initialize() nio._initialize() reflect._initialize() # start the reference deamon thread if _usePythonThreadForDaemon: _refdaemon.startPython() else: _refdaemon.startJava()
def startJVM(jvm=None, *args, **kwargs): """ Starts a Java Virtual Machine. Without options it will start the JVM with the default classpath and jvm. The default classpath will be determined by jpype.getClassPath(). The default JVM is determined by jpype.getDefaultJVMPath(). Args: jvm (str): Path to the jvm library file (libjvm.so, jvm.dll, ...) default=None will use jpype.getDefaultJVMPath() *args (str[]): Arguments to give to the JVM classpath (Optional[string]): set the classpath for the jvm. This will override any classpath supplied in the arguments list. ignoreUnrecognized (Optional[bool]): option to jvm to ignore invalid jvm arguments. (Default False) """ if jvm is None: jvm = get_default_jvm_path() # Check to see that the user has not set the classpath # Otherwise use the default if not specified if not _hasClassPath(args) and 'classpath' not in kwargs: kwargs['classpath'] = _classpath.getClassPath() print("Use default classpath") if 'ignoreUnrecognized' not in kwargs: kwargs['ignoreUnrecognized'] = False # Classpath handling args = list(args) if 'classpath' in kwargs and kwargs['classpath'] != None: args.append('-Djava.class.path=%s' % (kwargs['classpath'])) print("Set classpath") if not isJVMStarted(): _jpype.startup(jvm, tuple(args), kwargs['ignoreUnrecognized']) _initialize() # start the reference daemon thread if _usePythonThreadForDaemon: _refdaemon.startPython() else: _refdaemon.startJava()
def startJVM(jvm=None, *args, **kwargs): """ Starts a Java Virtual Machine. Without options it will start the JVM with the default classpath and jvm. The default classpath will be determined by jpype.getClassPath(). The default JVM is determined by jpype.getDefaultJVMPath(). Args: jvm (str): Path to the jvm library file (libjvm.so, jvm.dll, ...) default=None will use jpype.getDefaultJVMPath() *args (str[]): Arguments to give to the JVM classpath (Optional[string]): set the classpath for the jvm. This will override any classpath supplied in the arguments list. ignoreUnrecognized (Optional[bool]): option to jvm to ignore invalid jvm arguments. (Default False) """ if jvm is None: jvm = get_default_jvm_path() # Check to see that the user has not set the classpath # Otherwise use the default if not specified if not _hasClassPath(args) and 'classpath' not in kwargs: kwargs['classpath']=_classpath.getClassPath() print("Use default classpath") if 'ignoreUnrecognized' not in kwargs: kwargs['ignoreUnrecognized']=False # Classpath handling args = list(args) if 'classpath' in kwargs and kwargs['classpath']!=None: args.append('-Djava.class.path=%s'%(kwargs['classpath'])) print("Set classpath") _jpype.startup(jvm, tuple(args), kwargs['ignoreUnrecognized']) _initialize() # start the reference daemon thread if _usePythonThreadForDaemon: _refdaemon.startPython() else: _refdaemon.startJava()
def startJVM(jvm, *args): """ Starts a Java Virtual Machine :param jvm: Path to the jvm library file (libjvm.so, jvm.dll, ...) :param args: Arguments to give to the JVM """ _jpype.startup(jvm, tuple(args), True) _jclass._initialize() _jarray._initialize() _jwrapper._initialize() _jproxy._initialize() _jexception._initialize() _jcollection._initialize() _jobject._initialize() _properties._initialize() nio._initialize() reflect._initialize() # start the reference daemon thread if _usePythonThreadForDaemon: _refdaemon.startPython() else: _refdaemon.startJava()
def testStartup(self): _jpype.fault("PyJPModule_startup") with self.assertRaisesRegex(SystemError, "fault"): _jpype.startup()
def startJVM(*args, **kwargs): """ Starts a Java Virtual Machine. Without options it will start the JVM with the default classpath and jvmpath. The default classpath is determined by ``jpype.getClassPath()``. The default jvmpath is determined by ``jpype.getDefaultJVMPath()``. Parameters: *args (Optional, str[]): Arguments to give to the JVM. The first argument may be the path the JVM. Keyword Arguments: jvmpath (str): Path to the jvm library file, Typically one of (``libjvm.so``, ``jvm.dll``, ...) Using None will apply the default jvmpath. classpath (str,[str]): Set the classpath for the JVM. This will override any classpath supplied in the arguments list. A value of None will give no classpath to JVM. ignoreUnrecognized (bool): Option to ignore invalid JVM arguments. Default is False. convertStrings (bool): Option to force Java strings to cast to Python strings. This option is to support legacy code for which conversion of Python strings was the default. This will globally change the behavior of all calls using strings, and a value of True is NOT recommended for newly developed code. interrupt (bool): Option to install ^C signal handlers. If True then ^C will stop the process, else ^C will transfer control to Python rather than halting. If not specified will be False if Python is started as an interactive shell. Raises: OSError: if the JVM cannot be started or is already running. TypeError: if an invalid keyword argument is supplied or a keyword argument conflicts with the arguments. """ if _jpype.isStarted(): raise OSError('JVM is already started') global _JVM_started if _JVM_started: raise OSError('JVM cannot be restarted') args = list(args) # JVM path jvmpath = None if args: # jvm is the first argument the first argument is a path or None if not args[0] or not args[0].startswith('-'): jvmpath = args.pop(0) if 'jvmpath' in kwargs: if jvmpath: raise TypeError('jvmpath specified twice') jvmpath = kwargs.pop('jvmpath') if not jvmpath: jvmpath = getDefaultJVMPath() # Classpath handling if _hasClassPath(args): # Old style, specified in the arguments if 'classpath' in kwargs: # Cannot apply both styles, conflict raise TypeError('classpath specified twice') classpath = None elif 'classpath' in kwargs: # New style, as a keywork classpath = kwargs.pop('classpath') else: # Not speficied at all, use the default classpath classpath = _classpath.getClassPath() # Handle strings and list of strings. if classpath: if isinstance(classpath, str): args.append('-Djava.class.path=%s' % _handleClassPath([classpath])) elif hasattr(classpath, '__iter__'): args.append('-Djava.class.path=%s' % _handleClassPath(classpath)) else: raise TypeError("Unknown class path element") ignoreUnrecognized = kwargs.pop('ignoreUnrecognized', False) convertStrings = kwargs.pop('convertStrings', False) interrupt = kwargs.pop('interrupt', not interactive()) if kwargs: raise TypeError("startJVM() got an unexpected keyword argument '%s'" % (','.join([str(i) for i in kwargs]))) try: _jpype.startup(jvmpath, tuple(args), ignoreUnrecognized, convertStrings, interrupt) initializeResources() except RuntimeError as ex: source = str(ex) if "UnsupportedClassVersion" in source: import re match = re.search(r"([0-9]+)\.[0-9]+", source) if match: version = int(match.group(1)) - 44 raise RuntimeError( "%s is older than required Java version %d" % (jvmpath, version)) from ex raise
def startJVM(*args, **kwargs): """ Starts a Java Virtual Machine. Without options it will start the JVM with the default classpath and jvmpath. The default classpath is determined by ``jpype.getClassPath()``. The default jvmpath is determined by ``jpype.getDefaultJVMPath()``. Parameters: *args (Optional, str[]): Arguments to give to the JVM. The first argument may be the path the JVM. Keyword Arguments: jvmpath (str): Path to the jvm library file, Typically one of (``libjvm.so``, ``jvm.dll``, ...) Using None will apply the default jvmpath. classpath (str,[str]): Set the classpath for the JVM. This will override any classpath supplied in the arguments list. A value of None will give no classpath to JVM. ignoreUnrecognized (bool): Option to ignore invalid JVM arguments. Default is False. convertStrings (bool): Option to force Java strings to cast to Python strings. This option is to support legacy code for which conversion of Python strings was the default. This will globally change the behavior of all calls using strings, and a value of True is NOT recommended for newly developed code. The default value for this option during 0.7 series is True. The option will be False starting in 0.8. A warning will be issued if this option is not specified during the transition period. Raises: OSError: if the JVM cannot be started or is already running. TypeError: if an invalid keyword argument is supplied or a keyword argument conflicts with the arguments. """ if _jpype.isStarted(): raise OSError('JVM is already started') global _JVM_started if _JVM_started: raise OSError('JVM cannot be restarted') args = list(args) # JVM path jvmpath = None if args: # jvm is the first argument the first argument is a path or None if not args[0] or not args[0].startswith('-'): jvmpath = args.pop(0) if 'jvmpath' in kwargs: if jvmpath: raise TypeError('jvmpath specified twice') jvmpath = kwargs.pop('jvmpath') if not jvmpath: jvmpath = getDefaultJVMPath() # Classpath handling if _hasClassPath(args): # Old style, specified in the arguments if 'classpath' in kwargs: # Cannot apply both styles, conflict raise TypeError('classpath specified twice') classpath = None elif 'classpath' in kwargs: # New style, as a keywork classpath = kwargs.pop('classpath') else: # Not speficied at all, use the default classpath classpath = _classpath.getClassPath() # Handle strings and list of strings. if classpath: if isinstance(classpath, str): args.append('-Djava.class.path=%s' % _handleClassPath([classpath])) elif hasattr(classpath, '__iter__'): args.append('-Djava.class.path=%s' % _handleClassPath(classpath)) else: raise TypeError("Unknown class path element") ignoreUnrecognized = kwargs.pop('ignoreUnrecognized', False) convertStrings = kwargs.pop('convertStrings', False) if kwargs: raise TypeError("startJVM() got an unexpected keyword argument '%s'" % (','.join([str(i) for i in kwargs]))) try: _jpype.startup(jvmpath, tuple(args), ignoreUnrecognized, convertStrings) _JVM_started = True except RuntimeError as ex: source = str(ex) if "UnsupportedClassVersion" in source: import re match = re.search(r"([0-9]+)\.[0-9]+", source) if match: version = int(match.group(1)) - 44 raise RuntimeError( "%s is older than required Java version %d" % (jvmpath, version)) from ex raise _jpype._java_lang_Class = None _jpype._java_lang_Object = _jpype.JClass("java.lang.Object") _jpype._java_lang_Throwable = _jpype.JClass("java.lang.Throwable") _jpype._java_lang_Exception = _jpype.JClass("java.lang.Exception") _jpype._java_lang_Class = _jpype.JClass("java.lang.Class") _jpype._java_lang_String = _jpype.JClass("java.lang.String") _jpype._java_lang_RuntimeException = _jpype.JClass( "java.lang.RuntimeException") # Preload needed classes _jpype._java_lang_Boolean = _jpype.JClass("java.lang.Boolean") _jpype._java_lang_Byte = _jpype.JClass("java.lang.Byte") _jpype._java_lang_Character = _jpype.JClass("java.lang.Character") _jpype._java_lang_Short = _jpype.JClass("java.lang.Short") _jpype._java_lang_Integer = _jpype.JClass("java.lang.Integer") _jpype._java_lang_Long = _jpype.JClass("java.lang.Long") _jpype._java_lang_Float = _jpype.JClass("java.lang.Float") _jpype._java_lang_Double = _jpype.JClass("java.lang.Double") # Bind types _jpype.JString.class_ = _jpype._java_lang_String _jpype.JObject.class_ = _jpype._java_lang_Object _jtypes.JBoolean.class_ = _jpype._java_lang_Boolean.TYPE _jtypes.JByte.class_ = _jpype._java_lang_Byte.TYPE _jtypes.JChar.class_ = _jpype._java_lang_Character.TYPE _jtypes.JShort.class_ = _jpype._java_lang_Short.TYPE _jtypes.JInt.class_ = _jpype._java_lang_Integer.TYPE _jtypes.JLong.class_ = _jpype._java_lang_Long.TYPE _jtypes.JFloat.class_ = _jpype._java_lang_Float.TYPE _jtypes.JDouble.class_ = _jpype._java_lang_Double.TYPE _jtypes.JBoolean._hints = _jcustomizer.getClassHints("boolean") _jtypes.JByte._hints = _jcustomizer.getClassHints("byte") _jtypes.JChar._hints = _jcustomizer.getClassHints("char") _jtypes.JShort._hints = _jcustomizer.getClassHints("short") _jtypes.JInt._hints = _jcustomizer.getClassHints("int") _jtypes.JLong._hints = _jcustomizer.getClassHints("long") _jtypes.JFloat._hints = _jcustomizer.getClassHints("float") _jtypes.JDouble._hints = _jcustomizer.getClassHints("double") # Table for automatic conversion to objects "JObject(value, type)" _jpype._object_classes = {} # These need to be deprecated so that we can support casting Python objects _jpype._object_classes[bool] = _jpype._java_lang_Boolean _jpype._object_classes[int] = _jpype._java_lang_Long _jpype._object_classes[float] = _jpype._java_lang_Double _jpype._object_classes[str] = _jpype._java_lang_String _jpype._object_classes[type] = _jpype._java_lang_Class _jpype._object_classes[object] = _jpype._java_lang_Object _jpype._object_classes[_jpype._JClass] = _jpype._java_lang_Class _jpype._object_classes[_jtypes.JBoolean] = _jpype._java_lang_Boolean _jpype._object_classes[_jtypes.JByte] = _jpype._java_lang_Byte _jpype._object_classes[_jtypes.JChar] = _jpype._java_lang_Character _jpype._object_classes[_jtypes.JShort] = _jpype._java_lang_Short _jpype._object_classes[_jtypes.JInt] = _jpype._java_lang_Integer _jpype._object_classes[_jtypes.JLong] = _jpype._java_lang_Long _jpype._object_classes[_jtypes.JFloat] = _jpype._java_lang_Float _jpype._object_classes[_jtypes.JDouble] = _jpype._java_lang_Double _jpype._object_classes[type(None)] = _jpype._java_lang_Object _jpype._object_classes[_jpype.JString] = _jpype._java_lang_String # Set up table of automatic conversions of Python primitives # this table supports "JArray(type)" _jpype._type_classes = {} _jpype._type_classes[bool] = _jtypes.JBoolean _jpype._type_classes[int] = _jtypes.JLong _jpype._type_classes[float] = _jtypes.JDouble _jpype._type_classes[str] = _jpype._java_lang_String _jpype._type_classes[type] = _jpype._java_lang_Class _jpype._type_classes[object] = _jpype._java_lang_Object _jpype._type_classes[_jpype.JString] = _jpype._java_lang_String _jpype._type_classes[_jpype.JObject] = _jpype._java_lang_Object _jinit.runJVMInitializers() _jpype.JClass('org.jpype.JPypeKeywords').setKeywords( list(_pykeywords._KEYWORDS))
def runNoMethodCode(path): _jpype.startup(path, tuple(), False, False) cls = _jpype.PyJPClass("java.lang.String") methods = cls.getClassMethods() methods[0].__code__ # RuntimeError
def runStartupBadArgs(path): _jpype.startup(path)
def runStartup(path): _jpype.startup(path, tuple(), False, False)
def startJVM(*args, **kwargs): """ Starts a Java Virtual Machine. Without options it will start the JVM with the default classpath and jvmpath. The default classpath is determined by ``jpype.getClassPath()``. The default jvmpath is determined by ``jpype.getDefaultJVMPath()``. Parameters: *args (Optional, str[]): Arguments to give to the JVM. The first argument may be the path the JVM. Keyword Arguments: jvmpath (str): Path to the jvm library file, Typically one of (``libjvm.so``, ``jvm.dll``, ...) Using None will apply the default jvmpath. classpath (str,[str]): Set the classpath for the jvm. This will override any classpath supplied in the arguments list. A value of None will give no classpath to JVM. ignoreUnrecognized (bool): Option to JVM to ignore invalid JVM arguments. Default is False. convertStrings (bool): Option to JPype to force Java strings to cast to Python strings. This option is to support legacy code for which conversion of Python strings was the default. This will globally change the behavior of all calls using strings, and a value of True is NOT recommended for newly developed code. The default value for this option during 0.7 series is True. The option will be False starting in 0.8. A warning will be issued if this option is not specified during the transition period. Raises: OSError: if the JVM cannot be started or is already running. TypeError: if an invalid keyword argument is supplied or a keyword argument conflicts with the arguments. """ if _jpype.isStarted(): raise OSError('JVM is already started') global _JVM_started if _JVM_started: raise OSError('JVM cannot be restarted') _JVM_started = True args = list(args) # JVM path jvmpath = None if args: # jvm is the first argument the first argument is a path or None if not args[0] or not args[0].startswith('-'): jvmpath = args.pop(0) if 'jvmpath' in kwargs: if jvmpath: raise TypeError('jvmpath specified twice') jvmpath = kwargs.pop('jvmpath') if not jvmpath: jvmpath = getDefaultJVMPath() # Classpath handling if _hasClassPath(args): # Old style, specified in the arguments if 'classpath' in kwargs: # Cannot apply both styles, conflict raise TypeError('classpath specified twice') classpath = None elif 'classpath' in kwargs: # New style, as a keywork classpath = kwargs.pop('classpath') else: # Not speficied at all, use the default classpath classpath = _classpath.getClassPath() # Handle strings and list of strings. if classpath: if isinstance(classpath, (str, _jtypes._unicode)): args.append('-Djava.class.path=%s' % _handleClassPath([classpath])) elif hasattr(classpath, '__iter__'): args.append('-Djava.class.path=%s' % _handleClassPath(classpath)) else: raise TypeError("Unknown class path element") ignoreUnrecognized = kwargs.pop('ignoreUnrecognized', False) if not "convertStrings" in kwargs: import warnings warnings.warn(""" ------------------------------------------------------------------------------- Deprecated: convertStrings was not specified when starting the JVM. The default behavior in JPype will be False starting in JPype 0.8. The recommended setting for new code is convertStrings=False. The legacy value of True was assumed for this session. If you are a user of an application that reported this warning, please file a ticket with the developer. ------------------------------------------------------------------------------- """) convertStrings = kwargs.pop('convertStrings', True) if kwargs: raise TypeError("startJVM() got an unexpected keyword argument '%s'" % (','.join([str(i) for i in kwargs]))) _jpype.startup(jvmpath, tuple(args), ignoreUnrecognized, convertStrings) _initialize()
def startJVM(*args, **kwargs): """ Starts a Java Virtual Machine. Without options it will start the JVM with the default classpath and jvmpath. The default classpath is determined by ``jpype.getClassPath()``. The default jvmpath is determined by ``jpype.getDefaultJVMPath()``. Parameters: *args (Optional, str[]): Arguments to give to the JVM. The first argument may be the path the JVM. Keyword Arguments: jvmpath (str): Path to the jvm library file, Typically one of (``libjvm.so``, ``jvm.dll``, ...) Using None will apply the default jvmpath. classpath (str,[str]): Set the classpath for the jvm. This will override any classpath supplied in the arguments list. A value of None will give no classpath to JVM. ignoreUnrecognized (bool): Option to JVM to ignore invalid JVM arguments. Default is False. Raises: OSError: if the JVM cannot be started or is already running. TypeError: if an invalid keyword argument is supplied or a keyword argument conflicts with the arguments. """ if _jpype.isStarted(): raise OSError('JVM is already started') global _JVM_started if _JVM_started: raise OSError('JVM cannot be restarted') _JVM_started = True args = list(args) # JVM path jvmpath = None if args: # jvm is the first argument the first argument is a path or None if not args[0] or not args[0].startswith('-'): jvmpath = args.pop(0) if 'jvmpath' in kwargs: if jvmpath: raise TypeError('jvmpath specified twice') jvmpath = kwargs.pop('jvmpath') if not jvmpath: jvmpath = getDefaultJVMPath() # Classpath handling if _hasClassPath(args): # Old style, specified in the arguments if 'classpath' in kwargs: # Cannot apply both styles, conflict raise TypeError('classpath specified twice') classpath = None elif 'classpath' in kwargs: # New style, as a keywork classpath = kwargs.pop('classpath') else: # Not speficied at all, use the default classpath classpath = _classpath.getClassPath() # Handle strings and list of strings. if classpath: if isinstance(classpath, (str, _jtypes._unicode)): args.append('-Djava.class.path=%s' % classpath) else: args.append('-Djava.class.path=%s' % (_classpath._SEP.join(classpath))) ignoreUnrecognized = kwargs.pop('ignoreUnrecognized', False) if kwargs: raise TypeError("startJVM() got an unexpected keyword argument '%s'" % (','.join([str(i) for i in kwargs]))) _jpype.startup(jvmpath, tuple(args), ignoreUnrecognized) _initialize()