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json_eval.py
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json_eval.py
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import json
from typing import Any, Dict, List, Tuple
class DifferenceReport:
def __init__(self, expected_full_object = None):
self.differences = []
def add_difference(self, path: str, type: str, expected_value: Any, actual_value: Any):
self.differences.append({
"path": path,
"type": type,
"expected value": expected_value,
"actual value": actual_value
})
def print_report(self):
if not self.differences:
print("No differences found.")
else:
print("Differences found:")
for diff in self.differences:
print(f" Path: {diff['path']}")
print(f" Type: {diff['type']}")
print(f" Expected Value 1: {diff['expected value']}")
print(f" Actual Value 2: {diff['actual value']}")
print()
def compare_json(expected: Dict[str, Any], actual: Dict[str, Any], path: str = "") -> Tuple[float, DifferenceReport]:
total_score = 0
total_weight = 0
report = DifferenceReport()
all_keys = set(expected.keys()) | set(actual.keys())
for key in all_keys:
weight = 1
current_path = f"{path}.{key}" if path else key
if key not in expected:
report.add_difference(current_path, "Missing Key", "Not present", actual[key])
score = 0
elif key not in actual:
report.add_difference(current_path, "Missing Key", expected[key], "Not present")
score = 0
else:
score, sub_report = compare_values(expected[key], actual[key], current_path)
report.differences.extend(sub_report.differences)
total_score += score * weight
total_weight += weight
final_score = (total_score / total_weight) * 100 if total_weight > 0 else 100
return final_score, report
def compare_values(expected_val: Any, actual_val: Any, path: str) -> Tuple[float, DifferenceReport]:
report = DifferenceReport()
if type(expected_val) != type(actual_val):
report.add_difference(path, "Type Mismatch", type(expected_val).__name__, type(actual_val).__name__)
return 0, report
if isinstance(expected_val, dict):
score, sub_report = compare_json(expected_val, actual_val, path)
return score / 100, sub_report
elif isinstance(expected_val, list):
return compare_lists(expected_val, actual_val, path)
elif isinstance(expected_val, (int, float)):
score = 1 - min(abs(expected_val - actual_val) / max(abs(expected_val), abs(actual_val), 1), 1)
if score < 1:
report.add_difference(path, "Value Difference", expected_val, actual_val)
return score, report
elif isinstance(expected_val, str):
score = string_similarity(expected_val, actual_val)
if score < 1:
report.add_difference(path, "String Difference", expected_val, actual_val)
return score, report
elif isinstance(expected_val, bool):
score = 1 if expected_val == actual_val else 0
if score < 1:
report.add_difference(path, "Boolean Difference", expected_val, actual_val)
return score, report
else:
report.add_difference(path, "Unsupported Type", type(expected_val).__name__, type(actual_val).__name__)
return 0, report
def compare_lists(expected_list: List[Any], actual_list: List[Any], path: str) -> Tuple[float, DifferenceReport]:
report = DifferenceReport()
if len(expected_list) == 0 and len(actual_list) == 0:
return 1, report
if len(expected_list) == 0 or len(actual_list) == 0:
report.add_difference(path, "List Length Mismatch", len(expected_list), len(actual_list))
return 0, report
scores = []
for i, item1 in enumerate(expected_list):
best_score = 0
best_report = DifferenceReport()
for j, item2 in enumerate(actual_list):
score, sub_report = compare_values(item1, item2, f"{path}[{i}]")
if score > best_score:
best_score = score
best_report = sub_report
scores.append(best_score)
report.differences.extend(best_report.differences)
for j, item2 in enumerate(actual_list):
best_score = 0
for i, item1 in enumerate(expected_list):
score, _ = compare_values(item1, item2, f"{path}[{j}]")
if score > best_score:
best_score = score
scores.append(best_score)
return sum(scores) / len(scores), report
def string_similarity(s1: str, s2: str) -> float:
if len(s1) == 0 and len(s2) == 0:
return 1
if len(s1) == 0 or len(s2) == 0:
return 0
return 1 - (sum(c1 != c2 for c1, c2 in zip(s1, s2)) + abs(len(s1) - len(s2))) / max(len(s1), len(s2))
# Example usage
json1 = json.loads('{"name": "John", "age": 30, "city": "New York", "hobbies": ["reading", "swimming"], "details": {"height": 180, "weight": 75}}')
json2 = json.loads('{"name": "Jon", "age": 31, "city": "New York", "hobbies": ["reading", "running"], "details": {"height": 182, "weight": 78}}')
def extract_json_from_string(input_string):
import json
import re
json_str = None
start_index = input_string.find('{')
if start_index != -1:
# Initialize counters for matching braces
open_braces = 0
for i in range(start_index, len(input_string)):
if input_string[i] == '{':
open_braces += 1
elif input_string[i] == '}':
open_braces -= 1
if open_braces == 0:
end_index = i + 1
json_str = input_string[start_index:end_index]
break
if json_str:
try:
# Load the JSON object
#print(json_str)
json_obj = json.loads(json_str)
return json_obj
except json.JSONDecodeError:
print("Error decoding JSON")
return None
else:
print("No JSON object found in the string")
return None
'''
The function does the following:
It defines a helper function set_nested to set values in nested dictionaries using a path string.
It iterates through the update_data dictionary.
For each path:
If the type is 'Value Difference', it finds the highest numeric value and sets it in the JSON object.
If the type is 'String Difference', it finds the most common string (the one with the highest count) and sets it in the JSON object.
It returns the updated JSON object.
'''
from typing import Dict, Any
def update_json_with_highest_values(json_obj: Dict[str, Any], update_data: Dict[str, Any]) -> Dict[str, Any]:
def set_nested(obj, path, value):
parts = path.replace(']', '').replace('[', '.').split('.')
for part in parts[:-1]:
if part.isdigit():
part = int(part)
obj = obj[part]
last_part = parts[-1]
if last_part.isdigit():
last_part = int(last_part)
obj[last_part] = value
for path, data in update_data.items():
if data['type'] == 'Value Difference':
highest_value = max(data['values'].keys())
set_nested(json_obj, path, highest_value)
elif data['type'] == 'String Difference':
highest_count = max(data['values'].values())
most_common_string = next(key for key, value in data['values'].items() if value == highest_count)
set_nested(json_obj, path, most_common_string)
return json_obj