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tm_extractor.py
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tm_extractor.py
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import argparse
import copy
import json
import logging
import os
import time
import requests
from requests.adapters import HTTPAdapter
from requests.packages.urllib3.util.retry import Retry
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
class ProjectProcessor:
MAPPING_TYPES = {
"ROADS": "Roads",
"BUILDINGS": "Buildings",
"WATERWAYS": "Waterways",
"LAND_USE": "Landuse",
}
def __init__(
self,
config_json=None,
):
if config_json is None:
raise ValueError("Config JSON couldn't be found")
if isinstance(config_json, dict):
self.config = config_json
elif os.path.exists(config_json):
with open(config_json) as f:
self.config = json.load(f)
else:
raise ValueError("Invalid value for config_json")
self.RAW_DATA_API_BASE_URL = os.environ.get(
"RAW_DATA_API_BASE_URL", "https://api-prod.raw-data.hotosm.org/v1"
)
self.RAW_DATA_SNAPSHOT_URL = f"{self.RAW_DATA_API_BASE_URL}/custom/snapshot/"
self.TM_API_BASE_URL = os.environ.get(
"TM_API_BASE_URL",
"https://tasking-manager-tm4-production-api.hotosm.org/api/v2",
)
self.RAWDATA_API_AUTH_TOKEN = os.environ.get("RAWDATA_API_AUTH_TOKEN")
self.TASKING_MANAGER_API_KEY = os.environ.get("TASKING_MANAGER_API_KEY", None)
def get_mapping_list(self, input_value):
if isinstance(input_value, int):
input_value -= 1
if 0 <= input_value < len(self.MAPPING_TYPES):
return list(self.MAPPING_TYPES.values())[input_value]
return None
return self.MAPPING_TYPES.get(input_value.upper())
def generate_filtered_config(self, project_id, mapping_types, geometry):
config_temp = copy.deepcopy(self.config)
config_temp["dataset"]["dataset_prefix"] = f"hotosm_project_{project_id}"
config_temp["dataset"]["dataset_title"] = f"Tasking Manger Project {project_id}"
categories_list = config_temp.get("categories", [])
def extract_values(categories_list, key):
return next(
(category[key] for category in categories_list if key in category), None
)
extracted_values = {
key: extract_values(categories_list, key) for key in set(mapping_types)
}
modified_categories = [
{key: value} for key, value in extracted_values.items() if value
]
config_temp.update({"categories": modified_categories, "geometry": geometry})
return json.dumps(config_temp)
def process_project(self, project):
geometry = project["geometry"]
project_id = project["properties"].get("project_id")
mapping_types = []
for item in project["properties"].get("mapping_types"):
mapping_type_return = self.get_mapping_list(item)
if mapping_type_return is not None:
mapping_types.append(mapping_type_return)
if len(mapping_types) > 0:
request_config = self.generate_filtered_config(
project_id=project_id, mapping_types=mapping_types, geometry=geometry
)
logging.info(
"Sending Request to Rawdataapi for %s with %s",
project_id,
mapping_types,
)
response = self.retry_post_request(request_config)
return response
logging.info(
"Skipped %s , Mapping type %s not supported yet",
project_id,
project["properties"].get("mapping_types"),
)
def retry_post_request(self, request_config, max_retries=3):
retry_strategy = Retry(
total=max_retries,
status_forcelist=[429, 502],
allowed_methods=["POST"],
backoff_factor=1,
)
adapter = HTTPAdapter(max_retries=retry_strategy)
with requests.Session() as req_session:
req_session.mount("https://", adapter)
req_session.mount("http://", adapter)
try:
HEADERS = {
"Content-Type": "application/json",
"Access-Token": self.RAWDATA_API_AUTH_TOKEN,
}
response = req_session.post(
self.RAW_DATA_SNAPSHOT_URL,
headers=HEADERS,
data=request_config,
timeout=10,
)
response.raise_for_status()
return response.json()["task_id"]
except requests.exceptions.RetryError as e:
logging.warning(e)
self.handle_rate_limit()
return self.retry_post_request(request_config, max_retries - 1)
except requests.exceptions.RequestException as e:
if max_retries > 0:
return self.retry_post_request(request_config, max_retries - 1)
raise e
def handle_rate_limit(self):
logging.warning("Rate limit reached. Waiting for 1 minute before retrying.")
time.sleep(61)
def retry_get_request(self, url):
try:
response = requests.get(url, timeout=10)
response.raise_for_status()
return response.json()
except requests.exceptions.RequestException as e:
logging.error("Error in GET request: %s", str(e))
return {"status": "ERROR"}
def track_tasks_status(self, task_ids):
results = {}
for task_id in task_ids:
status_url = f"{self.RAW_DATA_API_BASE_URL}/tasks/status/{task_id}/"
response = self.retry_get_request(status_url)
if response["status"] == "SUCCESS":
results[task_id] = response["result"]
elif response["status"] in ["PENDING", "STARTED"]:
while True:
response = self.retry_get_request(status_url)
if response["status"] in ["SUCCESS", "ERROR", "FAILURE"]:
results[task_id] = response["result"]
logging.info(
"Task %s is %s , Moving to fetch next one",
task_id,
response["status"],
)
break
logging.warning(
"Task %s is %s. Retrying in 30 seconds...",
task_id,
response["status"],
)
time.sleep(30)
else:
results[task_id] = "FAILURE"
logging.info("%s tasks stats is fetched, Dumping result", len(results))
with open("result.json", "w") as f:
json.dump(results, f, indent=2)
logging.info("Done ! Find result at result.json")
def get_project_details(self, project_id):
feature = {"type": "Feature", "properties": {}}
project_api_url = f"{self.TM_API_BASE_URL}/projects/{project_id}/?as_file=false&abbreviated=false"
max_retries = 3
for retry in range(max_retries):
try:
headers = {"accept": "application/json"}
if self.TASKING_MANAGER_API_KEY:
headers["Authorization"] = self.TASKING_MANAGER_API_KEY
response = requests.get(project_api_url, timeout=20, headers=headers)
response.raise_for_status()
result = response.json()
feature["properties"]["mapping_types"] = result["mappingTypes"]
feature["properties"]["project_id"] = project_id
feature["geometry"] = result["areaOfInterest"]
return feature
except Exception as ex:
logging.warning(
"Request failed (attempt %s/%s): %s", retry + 1, max_retries, ex
)
logging.error("Failed to fetch project details %s after 3 retries", project_id)
return None
def get_active_projects(self, time_interval):
max_retries = 3
for retry in range(max_retries):
try:
active_projects_api_url = f"{self.TM_API_BASE_URL}/projects/queries/active/?interval={time_interval}"
headers = {"accept": "application/json"}
if self.TASKING_MANAGER_API_KEY:
headers["Authorization"] = self.TASKING_MANAGER_API_KEY
response = requests.get(
active_projects_api_url, timeout=10, headers=headers
)
response.raise_for_status()
return response.json()["features"]
except Exception as ex:
logging.warning(
"Request failed (attempt %s/%s): %s", retry + 1, max_retries, ex
)
logging.error("Failed to fetch active projects after 3 retries")
return None
def init_call(self, projects=None, fetch_active_projects=None):
all_project_details = []
if projects:
logger.info("%s Tasking manager projects supplied", len(projects))
for project_id in projects:
logger.info("Retrieving TM project %s", project_id)
project_details = self.get_project_details(project_id=project_id)
if project_details:
all_project_details.append(project_details)
if fetch_active_projects:
interval = fetch_active_projects
logger.info(
"Retrieving active projects with an interval of the last %s hr",
interval,
)
active_project_details = self.get_active_projects(interval)
logger.info("%s active projects fetched", len(active_project_details))
if active_project_details:
all_project_details.extend(active_project_details)
logger.info("Started processing %s projects in total", len(all_project_details))
task_ids = []
for project in all_project_details:
task_id = self.process_project(project)
if task_id is not None:
task_ids.append(task_id)
logging.info(
"Request : %s requests to Raw Data API has been sent",
len(task_ids),
)
return task_ids
def lambda_handler(event, context):
config_json = os.environ.get("CONFIG_JSON", None)
if config_json is None:
raise ValueError("Config JSON couldn't be found in env")
if os.environ.get("RAWDATA_API_AUTH_TOKEN", None) is None:
raise ValueError("RAWDATA_API_AUTH_TOKEN environment variable not found.")
projects = event.get("projects", None)
fetch_active_projects = event.get("fetch_active_projects", 24)
project_processor = ProjectProcessor(config_json)
project_processor.init_call(
projects=projects, fetch_active_projects=fetch_active_projects
)
def main():
parser = argparse.ArgumentParser(
description="Triggers extraction request for tasking manager projects"
)
group = parser.add_mutually_exclusive_group(required=True)
group.add_argument(
"--projects",
nargs="+",
type=int,
help="List of project IDs, add multiples by space",
)
group.add_argument(
"--fetch-active-projects",
nargs="?",
const=24,
type=int,
metavar="interval",
help="Fetch active projects with an optional interval (default is 24), unit is in hour",
)
parser.add_argument(
"--track",
action="store_true",
default=False,
help="Track the status of tasks and dumps result, Use it carefully as it waits for all tasks to complete",
)
args = parser.parse_args()
config_json = os.environ.get("CONFIG_JSON", "config.json")
if os.environ.get("RAWDATA_API_AUTH_TOKEN", None) is None:
raise ValueError("RAWDATA_API_AUTH_TOKEN environment variable not found.")
if os.environ.get("TASKING_MANAGER_API_KEY", None) is None:
print(
"Tasking manager API key is not supplied , Authenticated endpoint won't be available"
)
project_processor = ProjectProcessor(config_json)
task_ids = project_processor.init_call(
projects=args.projects, fetch_active_projects=args.fetch_active_projects
)
if args.track:
project_processor.track_tasks_status(task_ids)
if __name__ == "__main__":
main()