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Spring Batch Tasklet for File Validation - Need Exception Handling

  • Thread starter Thread starter abhijat mishra
  • Start date Start date
A

abhijat mishra

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I'm working on a Spring Batch application and have implemented a custom Partitioner to divide processing across multiple threads. I'm having trouble writing a JUnit 4 test for my partition method. I've mocked my DataSource and JdbcTemplate, but I'm not sure if I'm asserting the right conditions or if my setup is correct This code checks the number of occurrences of something, which could be anything from records to events, as referenced by a method on a dto (data transfer object). Here's what the logic does, described in plain words:

The code asks the dto for the number of occurrences with the method dto.getNumOfOccur().

If the number of occurrences is zero (meaning there have been no occurrences), the code sets a status on the dto to "NEW", indicating that whatever is being checked is new or hasn't occurred before.

If there is any number greater than zero (meaning there has been at least one occurrence), the status is set to "EXISTS", indicating that the occurrence is not new and has happened before.

This status is set using the dto.setNeworexist() method with either "NEW" or "EXISTS" as the

Code:
import fitz  # PyMuPDF
import os
import re
import spacy
import sys
#from fpdf import  FPDF


path = "c:/python39/lib/site-packages"
sys.path.append(path)

# Load spaCy model
nlp = spacy.load("en_core_web_sm")


def extract_text_from_pdf(pdf_path):
    """
    Extract text from a PDF file.
    """
    document = fitz.open(pdf_path)
    text = ""
    for page_num in range(len(document)):
        page = document.load_page(page_num)
        text += page.get_text()
    return text


def categorize_pdf(text):
    """
    Categorize the PDF content as either 'claim notice' or 'invoice'.
    """
    doc = nlp(text)

    # Check for claim notice keywords
    if any(ent.label_ == "MONEY" for ent in doc.ents) and \
            any(re.search(r"account number", sent.text, re.IGNORECASE) for sent in doc.sents) and \
            any(re.search(r"insurance payee", sent.text, re.IGNORECASE) for sent in doc.sents):
        return "Claim Notice"

    # Check for invoice keywords
    if any(re.search(r"invoice|bill", sent.text, re.IGNORECASE) for sent in doc.sents):
        return "Invoice"

    return "Uncategorized"


def generate_text_file(header, pdf_name):
    """
    Generate a text file with the given header.
    """
    output_file = f"D:/output/{header}_{pdf_name}.txt"
    with open(output_file, 'w') as f:
        f.write(header)
    return output_file


def process_pdf(pdf_path):
    """
    Process the PDF file to extract text, categorize it, and generate a text file with the appropriate header.
    """
    text = extract_text_from_pdf(pdf_path)
    category = categorize_pdf(text)
    pdf_name = os.path.basename(pdf_path).split('.')[0]
    output_file = generate_text_file(category, pdf_name)
    return output_file


# Example usage:
# process_pdf("D:/path_to_your_pdf_file.pdf")

# Additional code for creating mock PDF files for testing
from fpdf import FPDF


def create_pdf(filename, content):
    """
    Create a simple PDF file with the given content.
    """
    pdf = FPDF()
    pdf.add_page()
    pdf.set_font("Arial", size=12)
    for line in content:
        pdf.cell(200, 10, txt=line, ln=True)
    pdf.output(filename)


# Create a mock Claim Notice PDF
claim_notice_content = [
    "Claim Notice",
    "Account Number: 123456789",
    "Insurance Payee: ABC Insurance",
    "Details of the claim...",
    "Total Amount: $1500"
]

# Create a mock Invoice PDF
invoice_content = [
    "Invoice",
    "Bill Number: 987654321",
    "Total Due: $200",
    "Details of the invoice..."
]

# Create output directory if it doesn't exist
os.makedirs("D:/output", exist_ok=True)

# Create PDFs
create_pdf("D:/mock_claim_notice.pdf", claim_notice_content)
create_pdf("D:/mock_invoice.pdf", invoice_content)
<p>I'm working on a Spring Batch application and have implemented a custom <strong><code>Partitioner</code></strong> to divide processing across multiple threads. I'm having trouble writing a JUnit 4 test for my <strong><code>partition</code></strong> method. I've mocked my <strong><code>DataSource</code></strong> and <strong><code>JdbcTemplate</code></strong>, but I'm not sure if I'm asserting the right conditions or if my setup is correct
This code checks the number of occurrences of something, which could be anything from records to events, as referenced by a method on a dto (data transfer object). Here's what the logic does, described in plain words:</p>
<p>The code asks the dto for the number of occurrences with the method dto.getNumOfOccur().</p>
<p>If the number of occurrences is zero (meaning there have been no occurrences), the code sets a status on the dto to "NEW", indicating that whatever is being checked is new or hasn't occurred before.</p>
<p>If there is any number greater than zero (meaning there has been at least one occurrence), the status is set to "EXISTS", indicating that the occurrence is not new and has happened before.</p>
<p>This status is set using the dto.setNeworexist() method with either "NEW" or "EXISTS" as the</p>
<pre><code>import fitz # PyMuPDF
import os
import re
import spacy
import sys
#from fpdf import FPDF


path = "c:/python39/lib/site-packages"
sys.path.append(path)

# Load spaCy model
nlp = spacy.load("en_core_web_sm")


def extract_text_from_pdf(pdf_path):
"""
Extract text from a PDF file.
"""
document = fitz.open(pdf_path)
text = ""
for page_num in range(len(document)):
page = document.load_page(page_num)
text += page.get_text()
return text


def categorize_pdf(text):
"""
Categorize the PDF content as either 'claim notice' or 'invoice'.
"""
doc = nlp(text)

# Check for claim notice keywords
if any(ent.label_ == "MONEY" for ent in doc.ents) and \
any(re.search(r"account number", sent.text, re.IGNORECASE) for sent in doc.sents) and \
any(re.search(r"insurance payee", sent.text, re.IGNORECASE) for sent in doc.sents):
return "Claim Notice"

# Check for invoice keywords
if any(re.search(r"invoice|bill", sent.text, re.IGNORECASE) for sent in doc.sents):
return "Invoice"

return "Uncategorized"


def generate_text_file(header, pdf_name):
"""
Generate a text file with the given header.
"""
output_file = f"D:/output/{header}_{pdf_name}.txt"
with open(output_file, 'w') as f:
f.write(header)
return output_file


def process_pdf(pdf_path):
"""
Process the PDF file to extract text, categorize it, and generate a text file with the appropriate header.
"""
text = extract_text_from_pdf(pdf_path)
category = categorize_pdf(text)
pdf_name = os.path.basename(pdf_path).split('.')[0]
output_file = generate_text_file(category, pdf_name)
return output_file


# Example usage:
# process_pdf("D:/path_to_your_pdf_file.pdf")

# Additional code for creating mock PDF files for testing
from fpdf import FPDF


def create_pdf(filename, content):
"""
Create a simple PDF file with the given content.
"""
pdf = FPDF()
pdf.add_page()
pdf.set_font("Arial", size=12)
for line in content:
pdf.cell(200, 10, txt=line, ln=True)
pdf.output(filename)


# Create a mock Claim Notice PDF
claim_notice_content = [
"Claim Notice",
"Account Number: 123456789",
"Insurance Payee: ABC Insurance",
"Details of the claim...",
"Total Amount: $1500"
]

# Create a mock Invoice PDF
invoice_content = [
"Invoice",
"Bill Number: 987654321",
"Total Due: $200",
"Details of the invoice..."
]

# Create output directory if it doesn't exist
os.makedirs("D:/output", exist_ok=True)

# Create PDFs
create_pdf("D:/mock_claim_notice.pdf", claim_notice_content)
create_pdf("D:/mock_invoice.pdf", invoice_content)
</code></pre>
 

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