Redmine #1835: created pipeline class and adapted pipeline1

package/structure_assignment/api.py

@@ -5,23 +5,25 @@ import lxml.etree as lxml
 from flask import Flask, Response
 from flask_httpauth import HTTPBasicAuth
 
-import structure_assignment.pipeline as pipeline
+from structure_assignment.pipeline import Pipeline, create_nlp
 
 app = Flask(__name__)
 api_prefix = os.environ['API_PREFIX']
 resource_directory = os.environ['API_RESOURCE_DIR']
-pipeline.initialise(resource_dir=resource_directory)
-pipeline.load_classla_models()
+
+nlp = create_nlp(resource_directory)
 
 @app.route(api_prefix + '/test/<string:string>', methods=['GET'])
 def test(string):
 
     string_file_name = '/tmp/string.txt'
     parse_file_name = '/tmp/parse.xml'
+
     with open(string_file_name, 'w') as string_file:
         string_file.write(string + '\n')
 
     try:
+        pipeline = Pipeline(nlp)
         pipeline.import_file(string_file_name, 'strings-list')
         pipeline.do_tokenise()
         pipeline.do_tweak_conllu()
@@ -29,7 +31,7 @@ def test(string):
         pipeline.do_translate_jos()
         pipeline.do_conllu_to_tei()
         pipeline.export_file(parse_file_name, 'tei-initial')
-        # pipeline.cleanup()
+        pipeline.cleanup()
         tei = lxml.parse(parse_file_name).getroot()
         message = lxml.tostring(tei, encoding='UTF-8', pretty_print=True).decode()
         ok = True

package/structure_assignment/constants.py

@@ -14,7 +14,7 @@ STRUCTURE_SCHEMA_FILE_NAME = '../resources/structures.xsd'
 DICTIONARY_SCHEMA_FILE_NAME = '../resources/monolingual_dictionaries.xsd'
 
 # temporary outputs
-FILE_NAME_MAP = {'strings-list': 'strings.txt',
+FILE_MAP = {'strings-list': 'strings.txt',
             'obeliks-tokenised': 'obeliks_raw.conllu',
             'obeliks-tweaked': 'obeliks_tweaked.conllu',
             'classla-parsed': 'classla_raw.conllu',
@@ -33,3 +33,10 @@ FILE_NAME_MAP = {'strings-list': 'strings.txt',
             'dictionary-multiple': 'dictionary_multiple.xml',
             'dictionary': 'dictionary.xml'
 }
+
+NLP_CONFIG_MAP = {
+    'type': 'standard_jos',
+    'processors': 'tokenize,pos,lemma,depparse',
+    'tokenize_pretokenized': True,
+    'pos_use_lexicon': True,
+}

package/structure_assignment/pipeline.py

@@ -2,6 +2,7 @@ import codecs
 import shutil
 import os
 import tempfile
+from copy import deepcopy
 
 import obeliks
 
@@ -14,67 +15,52 @@ from structure_assignment.tweak_conllu import tweak as tweak_conllu
 from nova_slovnica.translate_jos import translate as translate_jos
 from nova_slovnica.conllu_to_xml import convert_file as conllu_to_tei
 
-NLP_CONFIG_MAP = {
-    'type': 'standard_jos',
-    'processors': 'tokenize,pos,lemma,depparse',
-    'tokenize_pretokenized': True,
-    'pos_use_lexicon': True,
-    'models_dir': None
-}
-
-XML_ID_PREFIX = 's'
-
-tmp_directory = tempfile.mkdtemp()
-resource_directory = None
-nlp = None
-
-def __get_tmp_file_name(file_key):
-    return tmp_directory + '/' + FILE_NAME_MAP[file_key]
-
-def initialise(**argument_map):
-    global resource_directory
-    resource_directory = argument_map['resource_dir']
+def create_nlp(resource_directory):
     NLP_CONFIG_MAP['dir'] = resource_directory + '/classla'
+    return classla.Pipeline('sl', **NLP_CONFIG_MAP)
 
-def import_file(file_name, file_key):
-    shutil.copyfile(file_name, __get_tmp_file_name(file_key))
+class Pipeline:
 
-def do_tokenise():
-    input_file_name = __get_tmp_file_name('strings-list')
-    output_file_name = __get_tmp_file_name('obeliks-tokenised')
+    def __init__(self, nlp):
+        self.nlp = nlp
+        self.tmp_directory = tempfile.mkdtemp()
+        self.file_map = {key: self.tmp_directory + '/' + FILE_MAP[key] for key in FILE_MAP.keys()}
+
+    def import_file(self, file_name, file_key):
+        shutil.copyfile(file_name, self.file_map[file_key])
+
+    def do_tokenise(self):
+        input_file_name = self.file_map['strings-list']
+        output_file_name = self.file_map['obeliks-tokenised']
         obeliks.run(in_file=input_file_name, out_file=output_file_name, conllu=True)
 
-def do_tweak_conllu():
-    input_file_name = __get_tmp_file_name('obeliks-tokenised')
-    output_file_name = __get_tmp_file_name('obeliks-tweaked')
+    def do_tweak_conllu(self):
+        input_file_name = self.file_map['obeliks-tokenised']
+        output_file_name = self.file_map['obeliks-tweaked']
         tweak_conllu(input_file_name, output_file_name)
 
-def load_classla_models():
-    global nlp
-    nlp = classla.Pipeline('sl', **NLP_CONFIG_MAP)
-
-def do_parse():
-    input_file_name = __get_tmp_file_name('obeliks-tweaked')
-    output_file_name = __get_tmp_file_name('classla-parsed')
+    def do_parse(self):
+        input_file_name = self.file_map['obeliks-tweaked']
+        output_file_name = self.file_map['classla-parsed']
         doc = Document(text=None)
         conll_file = CoNLLFile(filename=input_file_name)
         doc.conll_file = conll_file
         result = nlp(doc)
         result.conll_file.write_conll(output_file_name)
 
-def do_translate_jos():
-    input_file_name = __get_tmp_file_name('classla-parsed')
+    def do_translate_jos(self):
+        input_file_name = self.file_map['classla-parsed']
         dictionary_file_name = resource_directory + '/dict.xml'
-    output_file_name = __get_tmp_file_name('classla-translated')
+        output_file_name = self.file_map['classla-translated']
         translate_jos(input_file_name, dictionary_file_name, output_file_name)
 
-def do_conllu_to_tei():
-    input_file_name = __get_tmp_file_name('classla-translated')
-    output_file_name = __get_tmp_file_name('tei-initial')
+    def do_conllu_to_tei(self):
+        input_file_name = self.file_map['classla-translated']
+        output_file_name = self.file_map['tei-initial']
         conllu_to_tei(input_file_name, output_file_name)
 
-def export_file(file_name, file_key):
-    shutil.copyfile(__get_tmp_file_name(file_key), file_name)
+    def export_file(self, file_name, file_key):
+        shutil.copyfile(self.file_map[file_key], file_name)
 
-def cleanup():
-    shutil.rmtree(tmp_directory, True)
+    def cleanup(self):
+        shutil.rmtree(self.tmp_directory, True)

scripts/pipeline1.py

@@ -1,28 +1,26 @@
 import argparse
 
-import classla
-from classla import Document
-from classla.models.common.conll import CoNLLFile
+from structure_assignment.pipeline import Pipeline, create_nlp
 
-import structure_assignment.pipeline as pipeline
-
-arg_parser = argparse.ArgumentParser(description='Parse Slovene strings and convert to TEI.')
-arg_parser.add_argument('-inlist', type=str, help='Input list file')
-arg_parser.add_argument('-outtei', type=str, help='Output TEI file')
-arguments = arg_parser.parse_args()
-input_file_name = arguments.inlist
-output_file_name = arguments.outtei
-
-def run_pipeline(input_file_name, output_file_name):
-    pipeline.initialise(temp_dir='/tmp/structure_assignment_pipeline1', resource_dir='../resources')
+def run_pipeline(nlp, input_file_name, output_file_name):
+    pipeline = Pipeline(nlp)
     pipeline.import_file(input_file_name, 'strings-list')
     pipeline.do_tokenise()
     pipeline.do_tweak_conllu()
-    pipeline.load_classla_models()
     pipeline.do_parse()
     pipeline.do_translate_jos()
     pipeline.do_conllu_to_tei()
     pipeline.export_file(output_file_name, 'tei-initial')
+    pipeline.cleanup()
 
 if (__name__ == '__main__'):
+
+    arg_parser = argparse.ArgumentParser(description='Parse Slovene strings and convert to TEI.')
+    arg_parser.add_argument('-inlist', type=str, help='Input list file')
+    arg_parser.add_argument('-outtei', type=str, help='Output TEI file')
+    arguments = arg_parser.parse_args()
+    input_file_name = arguments.inlist
+    output_file_name = arguments.outtei
+
+    nlp = create_nlp('../resources')
     run_pipeline(input_file_name, output_file_name)