Is it possible to take a binary string in memory and use it in a transformer to tell it to treat it as a zip file? I know I can use a FeatureWriter (format set to data file) to write the binary string to disk then use a FeatureReader to read it back into memory. I was trying to skip the step of writing it to disk. Any help would be great!
Userlevel 4
+13
- Contributor
- 3726 replies
-
5 May 2018
Hi @justincornell Is performance your main concern? I think it would be easiest to make a RAM disk and write your zip file to that.
Userlevel 2
+17
- Contributor
- 7539 replies
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6 May 2018
Hi @justincornell, if the binary data containing zipped archives is saved as a feature attribute, you can manipulate it as a zip file directly with a Python, PythonCaller. e.g.
# PythonCaller Script Example
# Assuming the attribute "_response_body" stores
# a binary data containing zipped archives.
import fme, fmeobjects
import io, zipfile
class ZipManipulator(object):
def __init__(self):
pass
def input(self, feature):
bin = feature.getAttribute('_response_body')
buff = io.BytesIO(bin)
with zipfile.ZipFile(buff, 'r') as z:
#
# Do something with the ZipFile object.
#
pass
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