Kamaelia.File.Writing

• component SimpleFileWriter

• Simple File Writer
  • Example Usage
  • More detail
  • Development history

Simple File Writer

This component writes any data it receives to a file.

Example Usage

Copying a file:

from Kamaelia.File.Writing import SimpleFileWriter

Pipeline(RateControlledFileReader("sourcefile",rate=1000000),
         SimpleFileWriter("destinationfile")
        ).activate()

More detail

Any data sent to this component's inbox is written to the specified file. Any existing file with the same name is overwritten.

The file is opened for writing when the component is activated, and is closed when it shuts down.

This component terminates, closing the file, if it receives a shutdownMicroprocess or producerFinished message on its "control" inbox. The message is passed on out of its "signal" outbox.

Development history

SimpleFileWriter - prototyped in /Sketches/filereading/WriteFileAdapter.py

---

Kamaelia.File.Writing.SimpleFileWriter

class SimpleFileWriter(Axon.Component.component)

SimpleFileWriter(filename) -> component that writes data to the file

Writes any data sent to its inbox to the specified file.

Inboxes

• control : to receive shutdown/finished messages
• inbox : data to write to file

Outboxes

• outbox : not used
• signal : shutdown/finished signalling

Methods defined here

__init__(self, filename[, mode])

x.__init__(...) initializes x; see x.__class__.__doc__ for signature

closeDownComponent(self)

Closes the file handle

main(self)

Main loop

shutdown(self)

Returns True if a shutdownMicroprocess or producerFinished message is received.

Also passes the message on out of the "signal" outbox.

writeData(self, data)

Writes the data to the file