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 test_metadata(self):
expected = """
<soapenv:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soap="http://earthexplorer.usgs.gov/inventory/soap">
<soapenv:Header/>
<soapenv:Body>
<soap:metadata soapenv:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<datasetName xsi:type="xsd:string">LANDSAT_8</datasetName>
<node xsi:type="xsd:string">EE</node>
<apiKey xsi:type="xsd:string">USERS API KEY</apiKey>
<entityIds xsi:type="soap:ArrayOfString">
<item xsi:type="xsd:string">LC80130292014100LGN00</item>
<item xsi:type="xsd:string">LC80130282014100LGN00</item>
</entityIds>
</soap:metadata>
</soapenv:Body>
</soapenv:Envelope>
"""
request = soap.metadata(
"LANDSAT_8",
"EE", ["LC80130292014100LGN00", "LC80130282014100LGN00"],
api_key="USERS API KEY")
request = minidom.parseString(request).toprettyxml()
assert compare_xml(request, expected)
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 test_metadata(self):
expected = """
<soapenv:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soap="http://earthexplorer.usgs.gov/inventory/soap">
<soapenv:Header/>
<soapenv:Body>
<soap:metadata soapenv:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<datasetName xsi:type="xsd:string">LANDSAT_8</datasetName>
<node xsi:type="xsd:string">EE</node>
<apiKey xsi:type="xsd:string">USERS API KEY</apiKey>
<entityIds xsi:type="soap:ArrayOfString">
<item xsi:type="xsd:string">LC80130292014100LGN00</item>
<item xsi:type="xsd:string">LC80130282014100LGN00</item>
</entityIds>
</soap:metadata>
</soapenv:Body>
</soapenv:Envelope>
"""
request = soap.metadata("LANDSAT_8", "EE", ["LC80130292014100LGN00", "LC80130282014100LGN00"], api_key="USERS API KEY")
request = minidom.parseString(request).toprettyxml()
assert compare_xml(request, expected)