Create appStore/doc_processing.py

appStore/doc_processing.py

@@ -0,0 +1,77 @@
+# set path
+import glob, os, sys; 
+sys.path.append('../utils')
+from typing import List, Tuple
+from typing_extensions import Literal
+from haystack.schema import Document
+from utils.config import get_classifier_params
+from utils.preprocessing import processingpipeline,paraLengthCheck
+import streamlit as st
+import logging
+import pandas as pd
+params  = get_classifier_params("preprocessing")
+
+@st.cache_data
+def runPreprocessingPipeline(file_name:str, file_path:str, 
+            split_by: Literal["sentence", "word"] = 'sentence',
+            split_length:int = 2, split_respect_sentence_boundary:bool = False,
+            split_overlap:int = 0,remove_punc:bool = False)->List[Document]:
+    """
+    creates the pipeline and runs the preprocessing pipeline, 
+    the params for pipeline are fetched from paramconfig
+    Params
+    ------------
+    file_name: filename, in case of streamlit application use 
+    st.session_state['filename']
+    file_path: filepath, in case of streamlit application use st.session_state['filepath']
+    split_by: document splitting strategy either as word or sentence
+    split_length: when synthetically creating the paragrpahs from document,
+                    it defines the length of paragraph.
+    split_respect_sentence_boundary: Used when using 'word' strategy for 
+    splititng of text.
+    split_overlap: Number of words or sentences that overlap when creating
+        the paragraphs. This is done as one sentence or 'some words' make sense
+        when  read in together with others. Therefore the overlap is used.
+    remove_punc: to remove all Punctuation including ',' and '.' or not
+    Return
+    --------------
+    List[Document]: When preprocessing pipeline is run, the output dictionary 
+    has four objects. For the Haysatck implementation of SDG classification we, 
+    need to use the List of Haystack Document, which can be fetched by 
+    key = 'documents' on output.
+    """
+
+    processing_pipeline = processingpipeline()
+
+    output_pre = processing_pipeline.run(file_paths = file_path, 
+                            params= {"FileConverter": {"file_path": file_path, \
+                                        "file_name": file_name}, 
+                                     "UdfPreProcessor": {"remove_punc": remove_punc, \
+                                            "split_by": split_by, \
+                                            "split_length":split_length,\
+                                            "split_overlap": split_overlap, \
+        "split_respect_sentence_boundary":split_respect_sentence_boundary}})
+    
+    return output_pre
+
+
+def app():
+    with st.container():           
+          if 'filepath' in st.session_state:
+              file_name = st.session_state['filename']
+              file_path = st.session_state['filepath']
+
+              
+              all_documents = runPreprocessingPipeline(file_name= file_name,
+                              file_path= file_path, split_by= params['split_by'],
+                              split_length= params['split_length'],
+              split_respect_sentence_boundary= params['split_respect_sentence_boundary'],
+              split_overlap= params['split_overlap'], remove_punc= params['remove_punc'])
+              paralist = paraLengthCheck(all_documents['documents'], 100)
+              df = pd.DataFrame(paralist,columns = ['text','page'])
+              # saving the dataframe to session state
+              st.session_state['key0'] = df
+              
+          else:
+                st.info("🤔 No document found, please try to upload it at the sidebar!")
+                logging.warning("Terminated as no document provided")