# #
# This software was developed and / or modified by Raytheon Company,
# pursuant to Contract DG133W-05-CQ-1067 with the US Government.
# 
# U.S. EXPORT CONTROLLED TECHNICAL DATA
# This software product contains export-restricted data whose
# export/transfer/disclosure is restricted by U.S. law. Dissemination
# to non-U.S. persons whether in the United States or abroad requires
# an export license or other authorization.
# 
# Contractor Name:        Raytheon Company
# Contractor Address:     6825 Pine Street, Suite 340
#                         Mail Stop B8
#                         Omaha, NE 68106
#                         402.291.0100
# 
# See the AWIPS II Master Rights File ("Master Rights File.pdf") for
# further licensing information.
# #

#
# Python needs to have access to a context, not to create though
#   
#
#    
#    SOFTWARE HISTORY
#    
#    Date            Ticket#       Engineer       Description
#    ------------    ----------    -----------    --------------------------
#    03/12/13                      mnash          Initial Creation.
#    09/25/13         2250         mnash          Fix for FileLocker.unlock
#                                                 not being correctly called
#    Apr 27, 2015     4259         njensen        Updated for new JEP API
#    
# 
#

import io

from com.raytheon.uf.common.localization import FileLocker
Type = FileLocker.Type 
from java.io import File as JavaFile
from java.lang import Object
import jep

class File(io.TextIOWrapper):
    
    def __init__(self, file, name, mode):
        self.lockerObject = Object()
        
        raw_file = io.FileIO(file.getAbsolutePath(), mode)
        if mode == 'r':
            type = Type.READ
            buffer = io.BufferedReader(raw_file)
        else:
            type = Type.WRITE
            buffer = io.BufferedWriter(raw_file)
        
        self.file = file
        locked = FileLocker.lock(self.lockerObject, file, type)
        # log if not locked, because that's bad
        super(File, self).__init__(buffer)
    
    def close(self):
        array = jep.jarray(1, JavaFile)
        array[0] = self.file
        FileLocker.unlock(self.lockerObject, array)
        return super(File, self).close()