Decompress rar file

Hey @peter,

Yes, I think it’s possible. In my case I was extracting only the csv files out of zip files but it should be similar. Check the Python script I was using in a Script snap, and try to adjust it per your needs. Let us know if you have any difficulties.

from com.snaplogic.scripting.language import ScriptHook
import zipfile
import io


class TransformScript(ScriptHook):
    def __init__(self, input, output, error, log):
        self.input = input
        self.output = output
        self.error = error
        self.log = log

    # The "execute()" method is called once when the pipeline is started
    # and allowed to process its inputs or just send data to its outputs.
    def execute(self):
        self.log.info("Executing Transform script")
        while self.input.hasNext():
            try:
                # Read the next input document, store it in a new dictionary, and write this as an output document.
                inDoc = self.input.next()
                content = inDoc.get('content')
                files = zipfile.ZipFile(io.BytesIO(content))
                for info in files.infolist():
                    if files.read(info).find("xml version=") != -1:
                        filecontent = files.read(info)
                outDoc = {
                    'content' : filecontent,
                    'original' : inDoc
                }
                self.output.write(inDoc, outDoc)
            except Exception as e:
                errDoc = {
                    'error' : str(e)
                }
                self.log.error("Error in python script")
                self.error.write(errDoc)

        self.log.info("Script executed")

    # The "cleanup()" method is called after the snap has exited the execute() method
    def cleanup(self):
        self.log.info("Cleaning up")

# The Script Snap will look for a ScriptHook object in the "hook"
# variable.  The snap will then call the hook's "execute" method.
hook = TransformScript(input, output, error, log)

I hope you’ll find this helpful,
Bojan