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# Copyright (C) 2001-2012 Artifex Software, Inc.
# All Rights Reserved.
#
# This software is provided AS-IS with no warranty, either express or
# implied.
#
# This software is distributed under license and may not be copied,
# modified or distributed except as expressly authorized under the terms
# of the license contained in the file LICENSE in this distribution.
#
# Refer to licensing information at http://www.artifex.com or contact
# Artifex Software, Inc., 7 Mt. Lassen Drive - Suite A-134, San Rafael,
# CA 94903, U.S.A., +1(415)492-9861, for further information.
#
# rasterdb.py
#
# methods to put and retrieve files to and from the raster database
import os, gzip
from stat import *
import gsconf
def exists(file, dbdir=gsconf.rasterdbdir):
x = 0
filename=dbdir + file + '.gz'
try:
mode = os.stat(dbdir + file + '.gz')[ST_MODE]
if S_ISREG(mode):
x = 1
except:
pass
return x
def get_file(file, dbdir=gsconf.rasterdbdir, output=None):
if exists(file, dbdir):
if output:
ofile = output
else:
ofile = file
zf = gzip.open(dbdir + file + '.gz')
f = open(ofile, 'w')
data = zf.read(1024)
while data:
f.write(data)
data = zf.read(1024)
zf.close()
f.close()
else:
print "rasterdb.get_file: does not exist",file
def put_file(file, dbdir=gsconf.rasterdbdir):
mode = os.stat(file)[ST_MODE]
if S_ISREG(mode):
f = open(file)
zf = gzip.open(dbdir + file + '.gz', 'w')
data = f.read(1024)
while data:
zf.write(data)
data = f.read(1024)
f.close()
zf.close()
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