Merge pull request astropy#3193 from snbianco/ASB-30325-mast-uris

Accept MAST URIs as input to get_cloud_uris()

CHANGES.rst

@@ -4,9 +4,16 @@
 New Tools and Services
 ----------------------
 
+
 API changes
 -----------
 
+mast
+^^^^
+
+- Handle a MAST URI string as input for ``Observations.get_cloud_uri`` and a list of MAST URIs as input for
+  ``Observations.get_cloud_uris``. [#3193]
+
 simbad
 ^^^^^^
 
@@ -35,6 +42,13 @@ ipac.nexsci.nasa_exoplanet_archive
 
 - Fixed InvalidTableError for DI_STARS_EXEP and TD tables. [#3189]
 
+mast
+^^^^
+
+- Bugfix where users are unnecessarily warned about a query limit while fetching products in ``MastMissions.get_product_list``. [#3193]
+
+- Bugfix where ``Observations.get_cloud_uri`` and ``Observations.get_cloud_uris`` fail if the MAST relative path is not found. [#3193]
+
 simbad
 ^^^^^^
 

astroquery/mast/cloud.py

@@ -52,7 +52,8 @@ def __init__(self, provider="AWS", profile=None, verbose=False):
         import boto3
         import botocore
 
-        self.supported_missions = ["mast:hst/product", "mast:tess/product", "mast:kepler", "mast:galex", "mast:ps1"]
+        self.supported_missions = ["mast:hst/product", "mast:tess/product", "mast:kepler", "mast:galex", "mast:ps1",
+                                   "mast:jwst/product"]
 
         self.boto3 = boto3
         self.botocore = botocore
@@ -77,11 +78,7 @@ def is_supported(self, data_product):
         response : bool
               Is the product from a supported mission.
         """
-
-        for mission in self.supported_missions:
-            if data_product['dataURI'].lower().startswith(mission):
-                return True
-        return False
+        return any(data_product['dataURI'].lower().startswith(mission) for mission in self.supported_missions)
 
     def get_cloud_uri(self, data_product, include_bucket=True, full_url=False):
         """
@@ -92,7 +89,7 @@ def get_cloud_uri(self, data_product, include_bucket=True, full_url=False):
 
         Parameters
         ----------
-        data_product : `~astropy.table.Row`
+        data_product : `~astropy.table.Row`, str
             Product to be converted into cloud data uri.
         include_bucket : bool
             Default True. When false returns the path of the file relative to the
@@ -108,6 +105,8 @@ def get_cloud_uri(self, data_product, include_bucket=True, full_url=False):
             Cloud URI generated from the data product. If the product cannot be
             found in the cloud, None is returned.
         """
+        # If data_product is a string, convert to a list
+        data_product = [data_product] if isinstance(data_product, str) else data_product
 
         uri_list = self.get_cloud_uri_list(data_product, include_bucket=include_bucket, full_url=full_url)
 
@@ -124,8 +123,8 @@ def get_cloud_uri_list(self, data_products, include_bucket=True, full_url=False)
 
         Parameters
         ----------
-        data_products : `~astropy.table.Table`
-            Table containing products to be converted into cloud data uris.
+        data_products : `~astropy.table.Table`, list
+            Table containing products or list of MAST uris to be converted into cloud data uris.
         include_bucket : bool
             Default True. When false returns the path of the file relative to the
             top level cloud storage location.
@@ -141,8 +140,8 @@ def get_cloud_uri_list(self, data_products, include_bucket=True, full_url=False)
             if data_products includes products not found in the cloud.
         """
         s3_client = self.boto3.client('s3', config=self.config)
-
-        paths = utils.mast_relative_path(data_products["dataURI"])
+        data_uris = data_products if isinstance(data_products, list) else data_products['dataURI']
+        paths = utils.mast_relative_path(data_uris)
         if isinstance(paths, str):  # Handle the case where only one product was requested
             paths = [paths]
 

astroquery/mast/missions.py

@@ -99,14 +99,15 @@ def _parse_result(self, response, *, verbose=False):  # Used by the async_to_syn
 
         if self.service == self._search:
             results = self._service_api_connection._parse_result(response, verbose, data_key='results')
+
+            # Warn if maximum results are returned
+            if len(results) >= self.limit:
+                warnings.warn("Maximum results returned, may not include all sources within radius.",
+                              MaxResultsWarning)
         elif self.service == self._list_products:
             # Results from post_list_products endpoint need to be handled differently
             results = Table(response.json()['products'])
 
-        if len(results) >= self.limit:
-            warnings.warn("Maximum results returned, may not include all sources within radius.",
-                          MaxResultsWarning)
-
         return results
 
     def _validate_criteria(self, **criteria):

astroquery/mast/observations.py

@@ -854,9 +854,9 @@ def get_cloud_uris(self, data_products=None, *, include_bucket=True, full_url=Fa
 
         Parameters
         ----------
-        data_products : `~astropy.table.Table`
-            Table containing products to be converted into cloud data uris. If provided, this will supercede
-            page_size, page, or any keyword arguments passed in as criteria.
+        data_products : `~astropy.table.Table`, list
+            Table containing products or list of MAST uris to be converted into cloud data uris.
+            If provided, this will supercede page_size, page, or any keyword arguments passed in as criteria.
         include_bucket : bool
             Default True. When False, returns the path of the file relative to the
             top level cloud storage location.
@@ -920,16 +920,23 @@ def get_cloud_uris(self, data_products=None, *, include_bucket=True, full_url=Fa
                 # Return list of associated data products
                 data_products = self.get_product_list(obs)
 
-        # Filter product list
-        data_products = self.filter_products(data_products, mrp_only=mrp_only, extension=extension, **filter_products)
+        if isinstance(data_products, Table):
+            # Filter product list
+            data_products = self.filter_products(data_products, mrp_only=mrp_only, extension=extension,
+                                                 **filter_products)
+        else:  # data_products is a list of URIs
+            # Warn if trying to supply filters
+            if filter_products or extension or mrp_only:
+                warnings.warn('Filtering is not supported when providing a list of MAST URIs. '
+                              'To apply filters, please provide query criteria or a table of data products '
+                              'as returned by `Observations.get_product_list`', InputWarning)
 
         if not len(data_products):
-            warnings.warn("No matching products to fetch associated cloud URIs.", NoResultsWarning)
+            warnings.warn('No matching products to fetch associated cloud URIs.', NoResultsWarning)
             return
 
         # Remove duplicate products
         data_products = utils.remove_duplicate_products(data_products, 'dataURI')
-
         return self._cloud_connection.get_cloud_uri_list(data_products, include_bucket, full_url)
 
     def get_cloud_uri(self, data_product, *, include_bucket=True, full_url=False):
@@ -941,7 +948,7 @@ def get_cloud_uri(self, data_product, *, include_bucket=True, full_url=False):
 
         Parameters
         ----------
-        data_product : `~astropy.table.Row`
+        data_product : `~astropy.table.Row`, str
             Product to be converted into cloud data uri.
         include_bucket : bool
             Default True. When false returns the path of the file relative to the

astroquery/mast/tests/data/README.rst

@@ -36,3 +36,15 @@ To generate `~astroquery.mast.tests.data.mission_products.json`, use the followi
     >>> resp = utils._simple_request('https://mast.stsci.edu/search/hst/api/v0.1/list_products', {'dataset_ids': 'Z14Z0104T'})
     >>> with open('panstarrs_columns.json', 'w') as file:
     ...     json.dump(resp.json(), file, indent=4)  # doctest: +SKIP
+
+To generate `~astroquery.mast.tests.data.mast_relative_path.json`, use the following:
+
+.. doctest-remote-data::
+
+    >>> import json
+    >>> from astroquery.mast import utils
+    ...
+    >>> resp = utils._simple_request('https://mast.stsci.edu/api/v0.1/path_lookup/',
+    ...                              {'uri': ['mast:HST/product/u9o40504m_c3m.fits', 'mast:HST/product/does_not_exist.fits']})
+    >>> with open('mast_relative_path.json', 'w') as file:
+    ...     json.dump(resp.json(), file, indent=4)  # doctest: +SKIP

astroquery/mast/tests/data/mast_relative_path.json

@@ -0,0 +1,10 @@
+{
+    "mast:HST/product/u9o40504m_c3m.fits": {
+        "status_code": 200,
+        "path": "/hst/public/u9o4/u9o40504m/u9o40504m_c3m.fits"
+    },
+    "mast:HST/product/does_not_exist.fits": {
+        "status_code": 404,
+        "path": null
+    }
+}

astroquery/mast/tests/test_mast.py

@@ -4,6 +4,7 @@
 import os
 import re
 from shutil import copyfile
+from unittest.mock import patch
 
 import pytest
 
@@ -16,7 +17,8 @@
 
 from astroquery.mast.services import _json_to_table
 from astroquery.utils.mocks import MockResponse
-from astroquery.exceptions import InvalidQueryError, InputWarning, MaxResultsWarning
+from astroquery.exceptions import (InvalidQueryError, InputWarning, MaxResultsWarning, NoResultsWarning,
+                                   RemoteServiceError)
 
 from astroquery import mast
 
@@ -48,6 +50,7 @@
               'Mast.HscMatches.Db.v3': 'matchid.json',
               'Mast.HscMatches.Db.v2': 'matchid.json',
               'Mast.HscSpectra.Db.All': 'spectra.json',
+              'mast_relative_path': 'mast_relative_path.json',
               'panstarrs': 'panstarrs.json',
               'panstarrs_columns': 'panstarrs_columns.json',
               'tess_cutout': 'astrocut_107.27_-70.0_5x5.zip',
@@ -142,6 +145,8 @@ def request_mockreturn(url, params={}):
         filename = data_path(DATA_FILES["Mast.Name.Lookup"])
     elif 'panstarrs' in url:
         filename = data_path(DATA_FILES['panstarrs_columns'])
+    elif 'path_lookup' in url:
+        filename = data_path(DATA_FILES['mast_relative_path'])
     with open(filename, 'rb') as infile:
         content = infile.read()
     return MockResponse(content)
@@ -678,6 +683,95 @@ def test_observations_download_file(patch_post, tmpdir):
     assert result == ('COMPLETE', None, None)
 
 
+@patch('boto3.client')
+def test_observations_get_cloud_uri(mock_client, patch_post):
+    pytest.importorskip("boto3")
+
+    mast_uri = 'mast:HST/product/u9o40504m_c3m.fits'
+    expected = 's3://stpubdata/hst/public/u9o4/u9o40504m/u9o40504m_c3m.fits'
+
+    # Error without cloud connection
+    with pytest.raises(RemoteServiceError):
+        mast.Observations.get_cloud_uri('mast:HST/product/u9o40504m_c3m.fits')
+
+    # Enable access to public AWS S3 bucket
+    mast.Observations.enable_cloud_dataset()
+
+    # Row input
+    product = Table()
+    product['dataURI'] = [mast_uri]
+    uri = mast.Observations.get_cloud_uri(product[0])
+    assert isinstance(uri, str)
+    assert uri == expected
+
+    # String input
+    uri = mast.Observations.get_cloud_uri(mast_uri)
+    assert uri == expected
+
+    mast.Observations.disable_cloud_dataset()
+
+
+@patch('boto3.client')
+def test_observations_get_cloud_uris(mock_client, patch_post):
+    pytest.importorskip("boto3")
+
+    mast_uri = 'mast:HST/product/u9o40504m_c3m.fits'
+    expected = 's3://stpubdata/hst/public/u9o4/u9o40504m/u9o40504m_c3m.fits'
+
+    # Error without cloud connection
+    with pytest.raises(RemoteServiceError):
+        mast.Observations.get_cloud_uris(['mast:HST/product/u9o40504m_c3m.fits'])
+
+    # Enable access to public AWS S3 bucket
+    mast.Observations.enable_cloud_dataset()
+
+    # Get the cloud URIs
+    # Table input
+    product = Table()
+    product['dataURI'] = [mast_uri]
+    uris = mast.Observations.get_cloud_uris([mast_uri])
+    assert isinstance(uris, list)
+    assert len(uris) == 1
+    assert uris[0] == expected
+
+    # List input
+    uris = mast.Observations.get_cloud_uris([mast_uri])
+    assert isinstance(uris, list)
+    assert len(uris) == 1
+    assert uris[0] == expected
+
+    # Warn if attempting to filter with list input
+    with pytest.warns(InputWarning, match='Filtering is not supported'):
+        mast.Observations.get_cloud_uris([mast_uri],
+                                         extension='png')
+
+    # Warn if not found
+    with pytest.warns(NoResultsWarning, match='Failed to retrieve MAST relative path'):
+        mast.Observations.get_cloud_uris(['mast:HST/product/does_not_exist.fits'])
+
+
+@patch('boto3.client')
+def test_observations_get_cloud_uris_query(mock_client, patch_post):
+    pytest.importorskip("boto3")
+
+    # enable access to public AWS S3 bucket
+    mast.Observations.enable_cloud_dataset()
+
+    # get uris with streamlined function
+    uris = mast.Observations.get_cloud_uris(target_name=234295610,
+                                            filter_products={'productSubGroupDescription': 'C3M'})
+    assert isinstance(uris, list)
+
+    # check that InvalidQueryError is thrown if neither data_products or **criteria are defined
+    with pytest.raises(InvalidQueryError):
+        mast.Observations.get_cloud_uris(filter_products={'productSubGroupDescription': 'C3M'})
+
+    # warn if no data products match filters
+    with pytest.warns(NoResultsWarning, match='No matching products'):
+        mast.Observations.get_cloud_uris(target_name=234295610,
+                                         filter_products={'productSubGroupDescription': 'LC'})
+
+
 ######################
 # CatalogClass tests #
 ######################