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joshua_translation_engine

RESTful wrapper for the Joshua machine translation decoder

Description

This is a translation engine server written in Python that provides translations of documents http requests as responses to http requests.

Use

This translation server is meant to be run in a specific manner. It launches "run bundles". The directory that is the root of each run bundle should be passed as an argument for each concurrent decoder that will be running.

Installation

install the dependencies with pip:

pip install -r requirements.txt

Once this has been run, ensure that the the NLTK Data packages are installed. This can be done as shown below... it will take a while.

sudo python -m nltk.downloader -d /usr/local/share/nltk_data all

Starting the translation engine

You must use the command line options to Specify at least one bundle and source and target languages for each bundle. The order of repeated -s and -t correspond to the order of -b options.

Run the command, for example:

python app.py \
  -b /path/to/bundledir-es-en /path/to/bundledir-de-en \
  -s es                       de \
  -t en                       en \
  -p 8001                     8002

or a different version of the same command:

python app.py \
  --bundle-dir  /path/to/bundledir-es-en /path/to/bundledir-de-en \
  --source-lang es                       de \
  --target-lang en                       en \
  --port        8001                     8002

Requesting translations

To request a translation, send a POST http request to the running server at the following address:

curl http://localhost:5000/joshua/translate/english \
  -i -H "Content-Type: application/json" \
  -X POST -d '{"inputLanguage": "Spanish", "inputText": "vuelo"}' -v