def download(dataset, node, entityids, product='STANDARD', api_key=None):
"""
Though USGS supports multiple products in a single request, there's
ambiguity in the returned list. This wrapper only allows a single
product per request.
Additionally, the response has no indiction which URL is associated
with which scene/entity id. The URL can be parsed, but the structure
varies depending on the product.
"""
api_key = api_key if api_key else _get_api_key()
xml = soap.download(dataset, node, entityids, [product], api_key=api_key)
r = requests.post(USGS_API, xml)
root = ElementTree.fromstring(r.text)
_check_for_usgs_error(root)
items = root.findall("SOAP-ENV:Body/ns1:downloadResponse/return/item",
NAMESPACES)
data = map(lambda el: xsi.get(el), items)
return data
def metadata(dataset, node, sceneids, extended=False, api_key=None):
"""
Request metadata for a given scene in a USGS dataset.
:param dataset:
:param node:
:param sceneids:
:param extended:
Send a second request to the metadata url to get extended metadata on the scene.
:param api_key:
"""
api_key = api_key if api_key else _get_api_key()
xml = soap.metadata(dataset, node, sceneids, api_key=api_key)
r = requests.post(USGS_API, xml)
root = ElementTree.fromstring(r.text)
_check_for_usgs_error(root)
items = root.findall("SOAP-ENV:Body/ns1:metadataResponse/return/item",
NAMESPACES)
data = map(lambda item: {el.tag: xsi.get(el) for el in item}, items)
if extended:
metadata_urls = map(_get_metadata_url, data)
results = _async_requests(metadata_urls)
data = map(lambda idx: _get_extended(data[idx], results[idx]),
range(len(data)))
return data
def metadata(dataset, node, sceneids, extended=False, api_key=None):
"""
Request metadata for a given scene in a USGS dataset.
:param dataset:
:param node:
:param sceneids:
:param extended:
Send a second request to the metadata url to get extended metadata on the scene.
:param api_key:
"""
api_key = api_key if api_key else _get_api_key()
xml = soap.metadata(dataset, node, sceneids, api_key=api_key)
r = requests.post(USGS_API, xml)
root = ElementTree.fromstring(r.text)
_check_for_usgs_error(root)
items = root.findall("SOAP-ENV:Body/ns1:metadataResponse/return/item", NAMESPACES)
data = map(lambda item: {el.tag: xsi.get(el) for el in item}, items)
if extended:
metadata_urls = map(_get_metadata_url, data)
results = _async_requests(metadata_urls)
data = map(lambda idx: _get_extended(data[idx], results[idx]), range(len(data)))
return data
def get_extended(scene):
metadata_url = scene.get('metadataUrl')
r = requests.get(metadata_url)
root = ElementTree.fromstring(r.text)
items = root.findall("eemetadata:metadataFields/eemetadata:metadataField", NAMESPACES)
scene['extended'] = { item.attrib.get('name').strip(): xsi.get(item[0]) for item in items }
return scene
def _get_extended(scene, resp):
"""
Parse metadata returned from the metadataUrl of a USGS scene.
:param scene:
Dictionary representation of a USGS scene
:param resp:
Response object from requests/grequests
"""
root = ElementTree.fromstring(resp.text)
items = root.findall("eemetadata:metadataFields/eemetadata:metadataField", NAMESPACES)
scene['extended'] = {item.attrib.get('name').strip(): xsi.get(item[0]) for item in items}
return scene
def dataset_fields(dataset, node):
api_key = _get_api_key()
xml = soap.dataset_fields(dataset, node, api_key=api_key)
r = requests.post(USGS_API, xml)
root = ElementTree.fromstring(r.text)
_check_for_usgs_error(root)
items = root.findall("SOAP-ENV:Body/ns1:datasetFieldsResponse/return/item", NAMESPACES)
data = map(lambda item: {el.tag: xsi.get(el) for el in item}, items)
return data
def dataset_fields(dataset, node):
api_key = _get_api_key()
xml = soap.dataset_fields(dataset, node, api_key=api_key)
r = requests.post(USGS_API, xml)
root = ElementTree.fromstring(r.text)
_check_for_usgs_error(root)
items = root.findall("SOAP-ENV:Body/ns1:datasetFieldsResponse/return/item",
NAMESPACES)
data = map(lambda item: {el.tag: xsi.get(el) for el in item}, items)
return data
def _get_extended(scene, resp):
"""
Parse metadata returned from the metadataUrl of a USGS scene.
:param scene:
Dictionary representation of a USGS scene
:param resp:
Response object from requests/grequests
"""
root = ElementTree.fromstring(resp.text)
items = root.findall("eemetadata:metadataFields/eemetadata:metadataField",
NAMESPACES)
scene['extended'] = {
item.attrib.get('name').strip(): xsi.get(item[0])
for item in items
}
return scene
def metadata(dataset, node, sceneids, extended=False, api_key=None):
"""
Request metadata for a given scene in a USGS dataset.
:param dataset:
:param node:
:param sceneids:
:param extended:
Send a second request to the metadata url to get extended metadata on the scene.
:param api_key:
"""
api_key = _get_api_key()
xml = soap.metadata(dataset, node, sceneids, api_key=api_key)
r = requests.post(USGS_API, xml)
root = ElementTree.fromstring(r.text)
_check_for_usgs_error(root)
items = root.findall("SOAP-ENV:Body/ns1:metadataResponse/return/item", NAMESPACES)
data = map(lambda item: { el.tag: xsi.get(el) for el in item }, items)
if extended:
def get_extended(scene):
metadata_url = scene.get('metadataUrl')
r = requests.get(metadata_url)
root = ElementTree.fromstring(r.text)
items = root.findall("eemetadata:metadataFields/eemetadata:metadataField", NAMESPACES)
scene['extended'] = { item.attrib.get('name').strip(): xsi.get(item[0]) for item in items }
return scene
data = map(get_extended, data)
return data
def search(dataset, node, lat=None, lng=None, distance=100, ll=None, ur=None, start_date=None, end_date=None, where=None, max_results=50000, starting_number=1, sort_order="DESC", api_key=None):
"""
.. todo:: Export metadata from the search results e.g.
<numberReturned xsi:type="xsd:int">41</numberReturned>
<totalHits xsi:type="xsd:int">41</totalHits>
<firstRecord xsi:type="xsd:int">1</firstRecord>
<lastRecord xsi:type="xsd:int">41</lastRecord>
<nextRecord xsi:type="xsd:int">41</nextRecord>
"""
api_key = _get_api_key()
xml = soap.search(dataset, node, lat=lat, lng=lng, distance=100, ll=ll, ur=ur, start_date=start_date, end_date=end_date, where=where, max_results=max_results, starting_number=starting_number, sort_order=sort_order, api_key=api_key)
r = requests.post(USGS_API, xml)
root = ElementTree.fromstring(r.text)
_check_for_usgs_error(root)
items = root.findall("SOAP-ENV:Body/ns1:searchResponse/return/results/item", NAMESPACES)
data = map(lambda item: { el.tag: xsi.get(el) for el in item }, items)
return data
def download(dataset, node, entityids, product='STANDARD', api_key=None):
"""
Though USGS supports multiple products in a single request, there's
ambiguity in the returned list. This wrapper only allows a single
product per request.
Additionally, the response has no indiction which URL is associated
with which scene/entity id. The URL can be parsed, but the structure
varies depending on the product.
"""
api_key = api_key if api_key else _get_api_key()
xml = soap.download(dataset, node, entityids, [product], api_key=api_key)
r = requests.post(USGS_API, xml)
root = ElementTree.fromstring(r.text)
_check_for_usgs_error(root)
items = root.findall("SOAP-ENV:Body/ns1:downloadResponse/return/item", NAMESPACES)
data = map(lambda el: xsi.get(el), items)
return data
def search(dataset,
node,
lat=None,
lng=None,
distance=100,
ll=None,
ur=None,
start_date=None,
end_date=None,
where=None,
max_results=50000,
starting_number=1,
sort_order="DESC",
extended=False,
api_key=None):
"""
:param dataset:
USGS dataset (e.g. EO1_HYP_PUB, LANDSAT_8)
:param node:
USGS node representing a dataset catalog (e.g. CWIC, EE, HDDS, LPVS)
:param lat:
Latitude
:param lng:
Longitude
:param distance:
Distance in meters used to for a radial search
:param ll:
Dictionary of longitude/latitude coordinates for the lower left corner
of a bounding box search. e.g. { "longitude": 0.0, "latitude": 0.0 }
:param ur:
Dictionary of longitude/latitude coordinates for the upper right corner
of a bounding box search. e.g. { "longitude": 0.0, "latitude": 0.0 }
:param start_date:
Start date for when a scene has been acquired
:param end_date:
End date for when a scene has been acquired
:where:
Dictionary representing key/values for finer grained conditional
queries. Only a subset of metadata fields are supported. Available
fields depend on the value of `dataset`, and maybe be found by
submitting a dataset_fields query.
:max_results:
Maximum results returned by the server
:starting_number:
Starting offset for results of a query.
:sort_order:
Order in which results are sorted. Ascending or descending w.r.t the acquisition date.
:extended:
Boolean flag. When true a subsequent query will be sent to the `metadataUrl` returned by
the first query.
:api_key:
API key for EROS. Not required for searching.
.. todo:: Export metadata from the search results e.g.
<numberReturned xsi:type="xsd:int">41</numberReturned>
<totalHits xsi:type="xsd:int">41</totalHits>
<firstRecord xsi:type="xsd:int">1</firstRecord>
<lastRecord xsi:type="xsd:int">41</lastRecord>
<nextRecord xsi:type="xsd:int">41</nextRecord>
"""
api_key = api_key if api_key else _get_api_key()
xml = soap.search(dataset,
node,
lat=lat,
lng=lng,
distance=100,
ll=ll,
ur=ur,
start_date=start_date,
end_date=end_date,
where=where,
max_results=max_results,
starting_number=starting_number,
sort_order=sort_order,
api_key=api_key)
r = requests.post(USGS_API, xml)
# Find out what's going on with usgs servers!
try:
r.raise_for_status()
except:
print(r.text)
root = ElementTree.fromstring(r.text)
_check_for_usgs_error(root)
items = root.findall(
"SOAP-ENV:Body/ns1:searchResponse/return/results/item", NAMESPACES)
data = map(lambda item: {el.tag: xsi.get(el) for el in item}, items)
if extended:
metadata_urls = map(_get_metadata_url, data)
results = _async_requests(metadata_urls)
data = map(lambda idx: _get_extended(data[idx], results[idx]),
range(len(data)))
return data
def search(dataset, node, lat=None, lng=None, distance=100, ll=None, ur=None, start_date=None, end_date=None,
where=None, max_results=50000, starting_number=1, sort_order="DESC", extended=False, api_key=None):
"""
:param dataset:
USGS dataset (e.g. EO1_HYP_PUB, LANDSAT_8)
:param node:
USGS node representing a dataset catalog (e.g. CWIC, EE, HDDS, LPVS)
:param lat:
Latitude
:param lng:
Longitude
:param distance:
Distance in meters used to for a radial search
:param ll:
Dictionary of longitude/latitude coordinates for the lower left corner
of a bounding box search. e.g. { "longitude": 0.0, "latitude": 0.0 }
:param ur:
Dictionary of longitude/latitude coordinates for the upper right corner
of a bounding box search. e.g. { "longitude": 0.0, "latitude": 0.0 }
:param start_date:
Start date for when a scene has been acquired
:param end_date:
End date for when a scene has been acquired
:where:
Dictionary representing key/values for finer grained conditional
queries. Only a subset of metadata fields are supported. Available
fields depend on the value of `dataset`, and maybe be found by
submitting a dataset_fields query.
:max_results:
Maximum results returned by the server
:starting_number:
Starting offset for results of a query.
:sort_order:
Order in which results are sorted. Ascending or descending w.r.t the acquisition date.
:extended:
Boolean flag. When true a subsequent query will be sent to the `metadataUrl` returned by
the first query.
:api_key:
API key for EROS. Not required for searching.
.. todo:: Export metadata from the search results e.g.
<numberReturned xsi:type="xsd:int">41</numberReturned>
<totalHits xsi:type="xsd:int">41</totalHits>
<firstRecord xsi:type="xsd:int">1</firstRecord>
<lastRecord xsi:type="xsd:int">41</lastRecord>
<nextRecord xsi:type="xsd:int">41</nextRecord>
"""
api_key = api_key if api_key else _get_api_key()
xml = soap.search(dataset, node, lat=lat, lng=lng, distance=100, ll=ll, ur=ur, start_date=start_date,
end_date=end_date, where=where, max_results=max_results, starting_number=starting_number,
sort_order=sort_order, api_key=api_key)
r = requests.post(USGS_API, xml)
# Find out what's going on with usgs servers!
try:
r.raise_for_status()
except:
print(r.text)
root = ElementTree.fromstring(r.text)
_check_for_usgs_error(root)
items = root.findall("SOAP-ENV:Body/ns1:searchResponse/return/results/item", NAMESPACES)
data = map(lambda item: {el.tag: xsi.get(el) for el in item}, items)
if extended:
metadata_urls = map(_get_metadata_url, data)
results = _async_requests(metadata_urls)
data = map(lambda idx: _get_extended(data[idx], results[idx]), range(len(data)))
return data
