def __shutdownJVM(self):
"""
Shuts down the Java Virtual Machine
"""
if self._globJVMOn:
jpype.shutdownJVM()
self._globJVMOn = False
self._globJVMSymm = None
Messages.log(__name__, "JVM shut down!", verbose=1)
self._deleteJVMOutputFiles()
def __startJVM(self):
"""
Initializes Java Virtual Machine and loads symmetrizer
"""
jarpath = os.path.join(Constants._sourceDir, Constants._symmetrizerPath)
try:
jpype.startJVM(jpype.getDefaultJVMPath(), "-ea", "-Djava.class.path=%s" % (jarpath))
self._globJVMOn = True
self._globJVMSymm = JPackage('net.webmo.symmetry').Main
Messages.log(__name__, "JVM initialised!", verbose=1)
#TODO: In future this should be done via streams
fs = jpype.JClass("java.io.File")
ps = jpype.JClass("java.io.PrintStream")
jpype.java.lang.System.setOut(ps(fs(self._globJVMOutPath)))
jpype.java.lang.System.setErr(ps(fs(self._globJVMErrPath)))
except:
self._globJVMOn = False
self._globJVMSymm = None
Messages.warning(__name__, "Cannot start JVM!", verbose=0)
