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57 changes: 57 additions & 0 deletions
57
cumulus_lambda_functions/cumulus_collections_dapa/cumulus_create_collection_dapa.py
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| import json | ||
| import os | ||
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| import pystac | ||
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| from cumulus_lambda_functions.cumulus_stac.collection_transformer import CollectionTransformer | ||
| from cumulus_lambda_functions.cumulus_wrapper.query_collections import CollectionsQuery | ||
| from cumulus_lambda_functions.lib.lambda_logger_generator import LambdaLoggerGenerator | ||
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| LOGGER = LambdaLoggerGenerator.get_logger(__name__, LambdaLoggerGenerator.get_level_from_env()) | ||
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| class CumulusCreateCollectionDapa: | ||
| def __init__(self, event): | ||
| self.__event = event | ||
| self.__request_body = None | ||
| self.__cumulus_collection_query = CollectionsQuery('', '') | ||
| self.__cumulus_lambda_prefix = os.getenv('CUMULUS_LAMBDA_PREFIX') | ||
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| def start(self): | ||
| if 'body' not in self.__event: | ||
| raise ValueError(f'missing body in {self.__event}') | ||
| self.__request_body = json.loads(self.__event['body']) | ||
| LOGGER.debug(f'request body: {self.__request_body}') | ||
| validation_result = pystac.Collection.from_dict(self.__request_body).validate() | ||
| if not isinstance(validation_result, list): | ||
| LOGGER.error(f'request body is not valid STAC collection: {validation_result}') | ||
| return { | ||
| 'statusCode': 500, | ||
| 'body': {'message': f'request body is not valid STAC Collection schema. check details', | ||
| 'details': validation_result} | ||
| } | ||
| try: | ||
| cumulus_collection_doc = CollectionTransformer().from_stac(self.__request_body) | ||
| creation_result = self.__cumulus_collection_query.create_collection(cumulus_collection_doc, self.__cumulus_lambda_prefix) | ||
| if 'status' not in creation_result: | ||
| return { | ||
| 'statusCode': 500, | ||
| 'body': { | ||
| 'message': {creation_result} | ||
| } | ||
| } | ||
| except Exception as e: | ||
| LOGGER.exception('error while creating new collection in Cumulus') | ||
| return { | ||
| 'statusCode': 500, | ||
| 'body': { | ||
| 'message': f'error while creating new collection in Cumulus. check details', | ||
| 'details': str(e) | ||
| } | ||
| } | ||
| return { | ||
| 'statusCode': 200, | ||
| 'body': { | ||
| 'message': creation_result | ||
| } | ||
| } |
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69 changes: 69 additions & 0 deletions
69
cumulus_lambda_functions/cumulus_stac/unity_collection_stac.py
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| from datetime import datetime | ||
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| from pystac import Link, Collection, Extent, SpatialExtent, TemporalExtent, Summaries | ||
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| from cumulus_lambda_functions.cumulus_stac.collection_transformer import CollectionTransformer | ||
| from cumulus_lambda_functions.lib.lambda_logger_generator import LambdaLoggerGenerator | ||
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| LOGGER = LambdaLoggerGenerator.get_logger(__name__, LambdaLoggerGenerator.get_level_from_env()) | ||
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| class UnityCollectionStac: | ||
| def __init__(self): | ||
| self.__id = '' | ||
| self.__granule_id_extraction_regex = '' | ||
| self.__process = '' | ||
| self.__collection_title = '' | ||
| self.__granule_id_regex = '' | ||
| self.__sample_filename = '' | ||
| self.__files = [] | ||
| self.__collection_transformer = CollectionTransformer() | ||
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| def with_title(self, title: str): | ||
| self.__collection_title = title | ||
| return self | ||
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| def with_process(self, process: str): | ||
| self.__process = process | ||
| return self | ||
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| def with_id(self, collection_id: str): | ||
| self.__id = collection_id | ||
| if '___' not in collection_id: | ||
| LOGGER.warning(f'no ID in {collection_id}. using 001') | ||
| self.__id = f'{self.__id}___001' | ||
| return self | ||
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| def with_graule_id_regex(self, granule_id_regex): | ||
| self.__granule_id_regex = granule_id_regex | ||
| return self | ||
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| def with_granule_id_extraction_regex(self, granule_id_extraction_regex): | ||
| self.__granule_id_extraction_regex = granule_id_extraction_regex | ||
| return self | ||
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| def add_file_type(self, title: str, regex: str, bucket: str, media_type: str, rel: str = 'item'): | ||
| if rel == 'root': | ||
| LOGGER.debug('updating media_type for rel = root') | ||
| media_type = 'application/json' | ||
| self.__files.append(Link(rel=rel, target=self.__collection_transformer.generate_target_link_url(regex, bucket), media_type=media_type, title=title)) | ||
| return self | ||
|
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| def start(self): | ||
| # TODO validate | ||
| stac_collection = Collection(id=self.__id, | ||
| description='TODO', | ||
| extent=Extent(SpatialExtent([[0, 0, 0, 0]]), | ||
| TemporalExtent([[datetime.utcnow(), datetime.utcnow()]])), | ||
| title=self.__collection_title, | ||
| summaries=Summaries({ | ||
| 'granuleId': [self.__granule_id_regex], | ||
| 'granuleIdExtraction': [self.__granule_id_extraction_regex], | ||
| 'process': [self.__process] | ||
| }), | ||
| ) | ||
| stac_collection.add_links(self.__files) | ||
| new_collection = stac_collection.to_dict(include_self_link=False) | ||
| if 'links' in new_collection and len(new_collection['links']) > 0 and new_collection['links'][0]['rel'] == 'root': | ||
| new_collection['links'][0]['href'] = './collection.json' | ||
| return new_collection |
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