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sentinel_manifest_metadata_extractor.py
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sentinel_manifest_metadata_extractor.py
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'''Python script for extracting metadata fields from sentinel manifests or from opensearch API
Sentinel 1
Sentinel 2
Assumes there is a location where several manifests are stored
February 2016'''
import lxml
from lxml import etree
import os
import re
from xml.dom import minidom
import requests
from requests.auth import HTTPBasicAuth
import time
from datetime import date, timedelta
import sys
#TODO add logging instead of printing
#import logging
#logging.basicConfig(level=logging.DEBUG)
#https://docs.python.org/2/howto/logging.html
DHUS_USER ='guest'
DHUS_PASS ='guest'
FILEPATH = "/tmp/harvested/manifests/"
class SentinelMetadataExtractor:
filepath = ''
tree = ""
root = ""
file_error_count=0
filenames_error=[]
total_files=0
productMetadata={}
productMetadataEtrees={}
def __init__(self, filepath=FILEPATH):
self.filepath = filepath
def _downloadProduct(self,filename,link,outputFolder,user=DHUS_USER, password=DHUS_PASS):
'''download product and shows a progress bar'''
print 'Download product from ' + link
with open(filename, "wb") as f:
print "Downloading %s" % filename
response = requests.get(link, stream=True, auth=HTTPBasicAuth(user, password),verify=True)
total_length = response.headers.get('content-length')
if total_length is None: # no content length header
f.write(response.content)
else:
dl = 0
total_length = int(total_length)
for data in response.iter_content():
dl += len(data)
f.write(data)
done = int(50 * dl / total_length)
sys.stdout.write("\r[%s%s]" % ('=' * done, ' ' * (50-done)) )
sys.stdout.flush()
print 'Finished Download'
def extractMetadataFromAPIForToday(self,downloadManifests = False,user=DHUS_USER, password=DHUS_PASS, outputFolder=FILEPATH):
'''queries the dhus api and uses its metadata,
can download manifests and stores the manifests at specified location (filepath on init)'''
#odata - url = "https://scihub.copernicus.eu/apihub/odata/v1/Products?$filter=year(IngestionDate) eq 2016 and month(IngestionDate) eq 02 and day(IngestionDate) eq 1&$skip=0&$top=99"
if downloadManifests: #if folder doesnt exist and we want to write to file, exit
if not self._folderExists(outputFolder):
return None
today = time.strftime('%Y-%m-%d')
yesterday_d = date.today() - timedelta(1)
yesterday = yesterday_d.strftime('%Y-%m-%d')
NOW = str(today)+'T00:00:00.000Z'#Thh:mm:ss.SSSZ
YESTERDAY = str(yesterday)+'T00:00:00.000Z'#Thh:mm:ss.SSSZ
##first request to get total results
url = "https://scihub.copernicus.eu/dhus/search?q=ingestionDate:["+YESTERDAY+" TO "+NOW+"]"
r = requests.get(url, auth=HTTPBasicAuth(user, password),verify=False)
if r.status_code != 200:
print 'Wrong authentication? status code != 200'
return None
#print r.text
xml = minidom.parseString(r.text)
total_results = xml.getElementsByTagName("opensearch:totalResults")[0].firstChild.data
#total_results = str(10)
print 'found ' +total_results +' results'
for i in range(0, int(total_results), 100):
url = "https://scihub.copernicus.eu/dhus/search?q=ingestionDate:["+YESTERDAY+" TO "+NOW+"]&start="+str(i)+"&rows=99"
r = requests.get(url, auth=HTTPBasicAuth(user, password),verify=False)
xml = minidom.parseString(r.text)
products=xml.getElementsByTagName("entry")
for prod in products:
metadata = {}
ident=prod.getElementsByTagName("id")[0].firstChild.data
#print ident
link=prod.getElementsByTagName("link")[0].attributes.items()[0][1]
#print link
title=prod.getElementsByTagName("title")[0].firstChild.data
#print title
metadata['uuid'] = ident
print metadata['uuid']
metadata['downloadLink'] = link
metadata['thumbnail'] = "https://"+user+":"+password+"@scihub.copernicus.eu/apihub/odata/v1/Products('"+ident+"')/Products('Quicklook')/$value"
if downloadManifests:
self._downloadProduct(title.lower()+'.SAFE.zip',link,outputFolder,user,password)
for node in prod.getElementsByTagName("date"):
(name,value)=node.attributes.items()[0]
if value=="beginposition":
metadata['StartTime'] = node.firstChild.data
if value=="endposition":
metadata['StopTime'] = node.firstChild.data
for node in prod.getElementsByTagName("str"):
(name,value)=node.attributes.items()[0]
#metadata[value]=''
#print name,value
if value=="filename":
#filename= str(node.toxml()).split('>')[1].split('<')[0]#ugly, but minidom is not straightforward
filename = node.firstChild.data
metadata['manifestLink'] = "https://scihub.copernicus.eu/apihub/odata/v1/Products('" + ident +"')/Nodes('"+filename+"')/Nodes('manifest.safe')/$value"
if value=="footprint":
#assuming all footprints are polygons
footprint = node.firstChild.data
metadata['Coordinates'] = self._parseCoordinates(self._transformSolrCoordsToSAFECoords(footprint))
if value=="platformname":
metadata['FamilyName'] = node.firstChild.data
if value=="instrumentshortname":
metadata['InstrumentFamilyName'] = node.firstChild.data
if value=="instrumentname":
metadata['InstrumentName'] = node.firstChild.data
if value=="polarisationmode":
metadata['TransmitterReceiverPolarisation'] = node.firstChild.data
if value=="sensoroperationalmode":
metadata['InstrumentMode'] = node.firstChild.data
if value=="productclass":
metadata['ProductClass'] = node.firstChild.data
if value=="producttype":
metadata['ProductType'] = node.firstChild.data
if value=="productconsolidation":
metadata['ProductConsolidation'] = node.firstChild.data
if value=="acquisitiontype":
metadata['AcquisitionType'] = node.firstChild.data
if value=="orbitdirection":
metadata['OrbitDirection'] = node.firstChild.data
if value=="swathidentifier":
metadata['Swath'] = node.firstChild.data
self.productMetadata[title.lower()+'.manifest.safe'] = metadata #.manifest.safe to mantain consistency across class
print 'finished parsing api results'
def extractMetadataFromManifestFiles(self):
'''main method for metadata extarction'''
for filename in os.listdir(self.filepath):
self.total_files = self.total_files +1
if filename.endswith(".safe") or filename.endswith(".SAFE"):
#print "processing file - "+str(filename)
try:
self.tree = etree.parse(self.filepath+"/"+str(filename))
self.root = self.tree.getroot()
except lxml.etree.XMLSyntaxError:
print 'File XML Syntax Error'
self.file_error_count = self.file_error_count+1
self.filenames_error.append(str(filename))
continue
#####all this names represent files succesfully parsed with this program
raw = ['S1A_S3_RAW__0SDH','S1A_IW_RAW__0SSV','S1A_IW_RAW__0SSH','S1A_IW_RAW__0SDV','S1A_IW_RAW__0SDH','S1A_EW_RAW__0SDH','S1A_EW_RAW__0SSH',
'S1A_EW_RAW__0SDV','S1A_S1_RAW__0SSV','S1A_S6_RAW__0SSV','S1A_S5_RAW__0SSV','S1A_S3_RAW__0SDV','S1A_S1_RAW__0SDH','S1A_S4_RAW__0SSV',
'S1A_S3_RAW__0SSV']
gr = ['S1A_S3_GRDH_1SDH','S1A_IW_SLC__1SSV','S1A_IW__1SSH','S1A_IW_SLC__1SDV','S1A_IW_SLC__1SDH','S1A_IW_GRDH_1SSV','S1A_IW_GRDH_1SSH',
'S1A_IW_GRDH_1SDV','S1A_IW_GRDH_1SDH','S1A_EW_GRDM_1SSH','S1A_EW_GRDM_1SDV','S1A_EW_GRDH_1SDH','S1A_EW_GRDM_1SDH',
'S1A_IW_SLC__1SSH','S1A_S5_GRDH_1SSV','S1A_EW_GRDH_1SSH','S1A_S5_SLC__1SSV','S1A_IW_GRDH_1SDV','S1A_S4_GRDH_1SSV','S1A_S3_GRDH_1SSV',
'S1A_S3_GRDH_1SDV','S1A_S4_SLC__1SSV','S1A_S3_SLC__1SSV','S1A_S1_GRDH_1SDH','S1A_S3_SLC__1SDV']
ocn = ['S1A_IW_OCN__2SDV','S1A_WV_OCN__2SSV','S1A_IW_OCN__2SSV','S1A_EW_OCN__2SDH','S1A_IW_OCN__2SDH']
s2 = ['S2A_OPER_PRD_MSIL1C_PDMC']
processed = False
for sentinel_name in gr:
if filename.startswith(sentinel_name):
processed = True
self.productMetadata[filename.lower()] = self._extractGR()
break
for sentinel_name in raw:
if filename.startswith(sentinel_name):
processed = True
self.productMetadata[filename.lower()] = self._extractRAW()
break
for sentinel_name in ocn:
if filename.startswith(sentinel_name):
processed = True
self.productMetadata[filename.lower()] = self._extractIWOCN()
break
for sentinel_name in s2:
if filename.startswith(sentinel_name):
processed = True
self.productMetadata[filename.lower()] = self._extractS2()
break
if not processed:
self.file_error_count = self.file_error_count+1
self.filenames_error.append(str(filename))
print "FILE NOT IN KNOWN FILES - "+str(filename)
else:
print "File not ending with .SAFE or .safe - "+str(filename)
print "All Done"
def _transformSolrCoordsToSAFECoords(self, coords):
'''receives coordinates in solr format and parses to the one in SAFE format for further processing
FROM #POLYGON ((123.3108 8.0611,123.0589 9.3117,120.8469 9.0181,121.1061 7.7648,123.3108 8.0611,123.3108 8.0611))
TO 8.0611,123.3108 9.3117,123.0589 9.0181,120.8469 7.7648,121.1061 8.0611,123.3108
'''
#remove (( and )), split by commas
regexed = re.findall("POLYGON\s\D\D(.*)\D\D", coords)[0] #[0], grab first (and only) group
coords_split = regexed.split(',')
#coords_split = str(re.findall("POLYGON\s\D\D(.*)\D\D", coords)).split(',')
#add commas in whitespaces, and a whitespace to separate each pair, result is something like this 8.0611,123.3108 9.3117,123.0589 9.0181,120.8469 7.7648,121.1061 8.0611,123.3108
coords_united = ''
for c in range(0,len(coords_split)):
replaced = coords_split[c].replace(" ", ",")
coords_united = coords_united + replaced
if c != (len(coords_split)-1):
coords_united = coords_united +" "
return str(coords_united)
def _parseCoordinates(self,coordinates):
'''parse coordinates to a json format[[[lat1,long1],[lat2,long2],...]]'''
#in '58.893013,-65.056816 59.638775,-57.844292 55.804028,-56.761806 55.089973,-63.272209'
#out [['58.893013', '-65.056816'], ['59.638775', '-57.844292'], ['55.804028', '-56.761806'], ['55.089973', '-63.272209']]
final_list = []
coordsx=[] #lat
coordsy=[] #long
split = re.split(' |,',coordinates.strip())
#print split
for c in range(0,len(split)):
if c % 2 == 0: #pair
coordsx.append(split[c])
else:
coordsy.append(split[c])
for c in range(0,len(coordsx)):
final_list.append([str(coordsx[c]),str(coordsy[c])])
#print final_list
return final_list#lat,long
def _extractS2(self):
metadata = {}
###############S1A_S3_GRDH_1SDH###############S1A_IW_SLC__1SSV###############S1A_IW__1SSH###############S1A_IW_SLC__1SDV
###############S1A_IW_SLC__1SDH###############S1A_IW_GRDH_1SSV###############S1A_IW_GRDH_1SSH###############S1A_IW_GRDH_1SDV
###############S1A_IW_GRDH_1SDH###############S1A_EW_GRDM_1SSH###############S1A_EW_GRDM_1SDV###############S1A_EW_GRDH_1SDH
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/safe:acquisitionPeriod/safe:startTime',self.root.nsmap)
metadata['StartTime'] = extracted[0].text
#
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/safe:platform/safe:familyName',self.root.nsmap)
metadata['FamilyName'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/safe:platform/safe:number',self.root.nsmap)
metadata['FamilyNameNumber'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/safe:platform/safe:instrument/safe:familyName',self.root.nsmap)
metadata['InstrumentFamilyName'] = extracted[0].text
#
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/{http://www.esa.int/safe/sentinel/1.1}frameSet/{http://www.esa.int/safe/sentinel/1.1}footPrint/{http://www.opengis.net/gml}coordinates',self.root.nsmap)
metadata['Coordinates'] = self._parseCoordinates(extracted[0].text)
#
return metadata
def _extractGR(self):
metadata = {}
###############S1A_S3_GRDH_1SDH###############S1A_IW_SLC__1SSV###############S1A_IW__1SSH###############S1A_IW_SLC__1SDV
###############S1A_IW_SLC__1SDH###############S1A_IW_GRDH_1SSV###############S1A_IW_GRDH_1SSH###############S1A_IW_GRDH_1SDV
###############S1A_IW_GRDH_1SDH###############S1A_EW_GRDM_1SSH###############S1A_EW_GRDM_1SDV###############S1A_EW_GRDH_1SDH
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/safe:acquisitionPeriod/safe:startTime',self.root.nsmap)
metadata['StartTime'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/safe:acquisitionPeriod/safe:stopTime',self.root.nsmap)
metadata['StopTime'] = extracted[0].text
#
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/safe:platform/safe:familyName',self.root.nsmap)
metadata['FamilyName'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/safe:platform/safe:number',self.root.nsmap)
metadata['FamilyNameNumber'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/safe:platform/safe:instrument/safe:familyName',self.root.nsmap)
metadata['InstrumentFamilyName'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/safe:platform/safe:instrument/safe:extension/s1sarl1:instrumentMode/s1sarl1:mode',self.root.nsmap)
metadata['InstrumentMode'] = extracted[0].text
#
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/s1sarl1:standAloneProductInformation/s1sarl1:productClass',self.root.nsmap)
metadata['ProductClass'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/s1sarl1:standAloneProductInformation/s1sarl1:productClassDescription',self.root.nsmap)
metadata['ProductClassDescription'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/s1sarl1:standAloneProductInformation/s1sarl1:productComposition',self.root.nsmap)
metadata['ProductComposition'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/s1sarl1:standAloneProductInformation/s1sarl1:productType',self.root.nsmap)
metadata['ProductType'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/s1sarl1:standAloneProductInformation/s1sarl1:transmitterReceiverPolarisation',self.root.nsmap)
if len(extracted) > 1:
metadata['TransmitterReceiverPolarisation'] = extracted[0].text + "/" + extracted[1].text
else:
metadata['TransmitterReceiverPolarisation'] = extracted[0].text
#
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/safe:frameSet/safe:frame/safe:footPrint/gml:coordinates',self.root.nsmap)
metadata['Coordinates'] = self._parseCoordinates(extracted[0].text)
#
return metadata
def _extractRAW(self):
metadata = {}
###############S1A_S3_RAW__0SDH###############S1A_IW_RAW__0SSV###############S1A_IW_RAW__0SSH###############S1A_IW_RAW__0SDV
###############S1A_IW_RAW__0SDH###############S1A_EW_RAW__0SDH
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/{http://www.esa.int/safe/sentinel-1.0}acquisitionPeriod/{http://www.esa.int/safe/sentinel-1.0}startTime',self.root.nsmap)
metadata['StartTime'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/{http://www.esa.int/safe/sentinel-1.0}acquisitionPeriod/{http://www.esa.int/safe/sentinel-1.0}stopTime',self.root.nsmap)
metadata['StopTime'] = extracted[0].text
#
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/{http://www.esa.int/safe/sentinel-1.0}platform/{http://www.esa.int/safe/sentinel-1.0}familyName',self.root.nsmap)
metadata['FamilyName'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/{http://www.esa.int/safe/sentinel-1.0}platform/{http://www.esa.int/safe/sentinel-1.0}number',self.root.nsmap)
metadata['FamilyNameNumber'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/{http://www.esa.int/safe/sentinel-1.0}platform/{http://www.esa.int/safe/sentinel-1.0}instrument/{http://www.esa.int/safe/sentinel-1.0}familyName',self.root.nsmap)
metadata['InstrumentFamilyName'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/{http://www.esa.int/safe/sentinel-1.0}platform/{http://www.esa.int/safe/sentinel-1.0}instrument/{http://www.esa.int/safe/sentinel-1.0}extension/s1sar:instrumentMode/s1sar:mode',self.root.nsmap)
metadata['InstrumentMode'] = extracted[0].text
#
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/s1sar:standAloneProductInformation/s1sar:productClass',self.root.nsmap)
metadata['ProductClass'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/s1sar:standAloneProductInformation/s1sar:productClassDescription',self.root.nsmap)
metadata['ProductClassDescription'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/s1sar:standAloneProductInformation/s1sar:productConsolidation',self.root.nsmap)
metadata['ProductConsolidation'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/s1sar:standAloneProductInformation/s1sar:transmitterReceiverPolarisation',self.root.nsmap)
if len(extracted) > 1:
metadata['TransmitterReceiverPolarisation'] = extracted[0].text + "/" + extracted[1].text
else:
metadata['TransmitterReceiverPolarisation'] = extracted[0].text
#
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/{http://www.esa.int/safe/sentinel-1.0}frameSet/{http://www.esa.int/safe/sentinel-1.0}frame/{http://www.esa.int/safe/sentinel-1.0}footPrint/{http://www.opengis.net/gml}coordinates',self.root.nsmap)
metadata['Coordinates'] = self._parseCoordinates(extracted[0].text)
return metadata
def _extractIWOCN(self):
metadata = {}
###############S1A_IW_OCN__2SDV
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/safe:acquisitionPeriod/safe:startTime',self.root.nsmap)
metadata['StartTime'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/safe:acquisitionPeriod/safe:stopTime',self.root.nsmap)
metadata['StopTime'] = extracted[0].text
#
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/safe:platform/safe:familyName',self.root.nsmap)
metadata['FamilyName'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/safe:platform/safe:number',self.root.nsmap)
metadata['FamilyNameNumber'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/safe:platform/safe:instrument/safe:familyName',self.root.nsmap)
metadata['InstrumentFamilyName'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/safe:platform/safe:instrument/safe:extension/s1sarl2:instrumentMode/s1sarl2:mode',self.root.nsmap)
metadata['InstrumentMode'] = extracted[0].text
#
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/s1sarl2:standAloneProductInformation/s1sarl2:productClass',self.root.nsmap)
metadata['ProductClass'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/s1sarl2:standAloneProductInformation/s1sarl2:productClassDescription',self.root.nsmap)
metadata['ProductClassDescription'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/s1sarl2:standAloneProductInformation/s1sarl2:productComposition',self.root.nsmap)
metadata['ProductComposition'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/s1sarl2:standAloneProductInformation/s1sarl2:productType',self.root.nsmap)
metadata['ProductType'] = extracted[0].text
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/s1sarl2:standAloneProductInformation/s1sarl2:transmitterReceiverPolarisation',self.root.nsmap)
if len(extracted) > 1:
metadata['TransmitterReceiverPolarisation'] = extracted[0].text + "/" + extracted[1].text
else:
metadata['TransmitterReceiverPolarisation'] = extracted[0].text
#
extracted = self.root.findall('./metadataSection/metadataObject/metadataWrap/xmlData/safe:frameSet/safe:frame/safe:footPrint/gml:coordinates',self.root.nsmap)
metadata['Coordinates'] = self._parseCoordinates(extracted[0].text)
return metadata
def checkAllFilesParsed(self):
''' check if any files processed had errors and outputs their name, along with the number of total files processed'''
print 'Processed ' + str(self.total_files) + ' files'
print '\n\n'
print str(self.file_error_count) + " files had errors"
print 'Printing filenames'
for j in range(0,len(self.filenames_error)):
print self.filenames_error[j]
def getProductsMetadata(self):
'''return all ingested products metadata
the actual metadata, dict in which keys are the filenames in lowercase, values are a dict of keys,values
'''
return self.productMetadata
def getXMLStringMetadataInspire(self, template='inspire_template.xml'):
'''return all ingested products metadata in etree
the actual metadata, dict in which keys are the filenames in lowercase, values are an lxml etree
'''
for productName in self.productMetadata.keys(): #generate inspires for all metadata harvested
#write to manifests-inspire, based on the template, a xml inspire metadata document
inspireetree = self.generateInspireFromTemplate(productName,template,'', False)
self.productMetadataEtrees[productName] = etree.tostring(inspireetree,encoding='utf-8', pretty_print=True)
return self.productMetadataEtrees
def _getBoundingBox(self,coords):
'''returns a bounding box for a given set of coordinates
'''
##parse coords
coordsx=[] #lat
coordsy=[] #long
for c in range(0,len(coords)):
coordsx.append(coords[c][0])
coordsy.append(coords[c][1])
xmax = max(coordsx);
xmin = min(coordsx);
ymax = max(coordsy);
ymin = min(coordsy);
#lat max = north bound lat
#lat min = south bound lat
#long max = east bound long
#ong min = west bound long
return [xmax,xmin,ymax,ymin]
def _folderExists(self,outputFolder):
'''check if path exists and then check if path given is a folder, returns boolean'''
if not os.path.exists(outputFolder):
print 'Folder does not exist, creating '+outputFolder +' .'
try:
os.makedirs(outputFolder)
return True
except:
print 'Folder creation not succesfull, maybe you do not have permissions'
return False
try:
os.path.isdir(outputFolder)
return True
except:
print 'given outputFolder path is not a folder'
return False
return False
def generateInspireFromTemplate(self, metadata_key, template='inspire_template.xml', outputFolder = '/tmp/harvested/manifests-inspire/',writeToFile=False):
'''glued with spit and hammered code to generate inspire xml based on a custom template
general idea is to replace the values on the template with the ones from our metadata
check http://inspire-geoportal.ec.europa.eu/editor/
returns the etree
outputFolder can be empty if writeToFile is false
'''
#print metadata_key
if writeToFile: #if folder doesnt exist and we want to write to file, exit
if not self._folderExists(outputFolder):
return None
if metadata_key in self.productMetadata.keys():
try:
template_tree = etree.parse(template)
template_root = template_tree.getroot()
current_metadata = self.productMetadata[metadata_key]
#uuid
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}fileIdentifier/{http://www.isotc211.org/2005/gco}CharacterString',template_root.nsmap)
find[0].text = current_metadata['uuid']
#org name
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}contact/{http://www.isotc211.org/2005/gmd}CI_ResponsibleParty/{http://www.isotc211.org/2005/gmd}organisationName/{http://www.isotc211.org/2005/gco}CharacterString',template_root.nsmap)
find[0].text = 'ESA'
#org contact email
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}contact/{http://www.isotc211.org/2005/gmd}CI_ResponsibleParty/{http://www.isotc211.org/2005/gmd}contactInfo/{http://www.isotc211.org/2005/gmd}CI_Contact/{http://www.isotc211.org/2005/gmd}address/{http://www.isotc211.org/2005/gmd}CI_Address/{http://www.isotc211.org/2005/gmd}electronicMailAddress/{http://www.isotc211.org/2005/gco}CharacterString',template_root.nsmap)
#date created
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}dateStamp/{http://www.isotc211.org/2005/gco}Date',template_root.nsmap)
find[0].text = current_metadata['StartTime'][:10]
#filename
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}identificationInfo/{http://www.isotc211.org/2005/gmd}MD_DataIdentification/{http://www.isotc211.org/2005/gmd}citation/{http://www.isotc211.org/2005/gmd}CI_Citation/{http://www.isotc211.org/2005/gmd}title/{http://www.isotc211.org/2005/gco}CharacterString',template_root.nsmap)
find[0].text = metadata_key.upper()
#date for metadata creation (this xml)
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}identificationInfo/{http://www.isotc211.org/2005/gmd}MD_DataIdentification/{http://www.isotc211.org/2005/gmd}citation/{http://www.isotc211.org/2005/gmd}CI_Citation/{http://www.isotc211.org/2005/gmd}date/{http://www.isotc211.org/2005/gmd}CI_Date/{http://www.isotc211.org/2005/gmd}date/{http://www.isotc211.org/2005/gco}Date',template_root.nsmap)
find[0].text = current_metadata['StartTime'][:10]
#uuid
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}identificationInfo/{http://www.isotc211.org/2005/gmd}MD_DataIdentification/{http://www.isotc211.org/2005/gmd}citation/{http://www.isotc211.org/2005/gmd}CI_Citation/{http://www.isotc211.org/2005/gmd}identifier/{http://www.isotc211.org/2005/gmd}RS_Identifier/{http://www.isotc211.org/2005/gmd}code/{http://www.isotc211.org/2005/gco}CharacterString',template_root.nsmap)
find[0].text = current_metadata['uuid']
#abstract
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}identificationInfo/{http://www.isotc211.org/2005/gmd}MD_DataIdentification/{http://www.isotc211.org/2005/gmd}abstract/{http://www.isotc211.org/2005/gco}CharacterString',template_root.nsmap)
find[0].text = 'ESA Sentinel Product Metadata'
#responsible org
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}identificationInfo/{http://www.isotc211.org/2005/gmd}MD_DataIdentification/{http://www.isotc211.org/2005/gmd}pointOfContact/{http://www.isotc211.org/2005/gmd}CI_ResponsibleParty/{http://www.isotc211.org/2005/gmd}organisationName/{http://www.isotc211.org/2005/gco}CharacterString',template_root.nsmap)
find[0].text = 'ESA'
#responsible org contact
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}identificationInfo/{http://www.isotc211.org/2005/gmd}MD_DataIdentification/{http://www.isotc211.org/2005/gmd}pointOfContact/{http://www.isotc211.org/2005/gmd}CI_ResponsibleParty/{http://www.isotc211.org/2005/gmd}contactInfo/{http://www.isotc211.org/2005/gmd}CI_Contact/{http://www.isotc211.org/2005/gmd}address/{http://www.isotc211.org/2005/gmd}CI_Address/{http://www.isotc211.org/2005/gmd}electronicMailAddress/{http://www.isotc211.org/2005/gco}CharacterString',template_root.nsmap)
#keywords from INSPIER Data Themes
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}identificationInfo/{http://www.isotc211.org/2005/gmd}MD_DataIdentification/{http://www.isotc211.org/2005/gmd}descriptiveKeywords/{http://www.isotc211.org/2005/gmd}MD_Keywords/{http://www.isotc211.org/2005/gmd}keyword/{http://www.isotc211.org/2005/gco}CharacterString',template_root.nsmap)
find[0].text = 'Orthoimagery'
#keywors from repositories
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}identificationInfo/{http://www.isotc211.org/2005/gmd}MD_DataIdentification/{http://www.isotc211.org/2005/gmd}descriptiveKeywords/{http://www.isotc211.org/2005/gmd}MD_Keywords/{http://www.isotc211.org/2005/gmd}thesaurusName/{http://www.isotc211.org/2005/gmd}CI_Citation/{http://www.isotc211.org/2005/gmd}title/{http://www.isotc211.org/2005/gco}CharacterString',template_root.nsmap)
find[0].text = 'GEMET - INSPIRE themes, version 1.0'
#licenese conditions
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}identificationInfo/{http://www.isotc211.org/2005/gmd}MD_DataIdentification/{http://www.isotc211.org/2005/gmd}resourceConstraints/{http://www.isotc211.org/2005/gmd}MD_Constraints/{http://www.isotc211.org/2005/gmd}useLimitation/{http://www.isotc211.org/2005/gco}CharacterString',template_root.nsmap)
find[0].text = 'Conditions unknown'
#topic category code
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}identificationInfo/{http://www.isotc211.org/2005/gmd}MD_DataIdentification/{http://www.isotc211.org/2005/gmd}topicCategory/{http://www.isotc211.org/2005/gmd}MD_TopicCategoryCode',template_root.nsmap)
find[0].text = 'imageryBaseMapsEarthCover'
#start time of data
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}identificationInfo/{http://www.isotc211.org/2005/gmd}MD_DataIdentification/{http://www.isotc211.org/2005/gmd}extent/{http://www.isotc211.org/2005/gmd}EX_Extent/{http://www.isotc211.org/2005/gmd}temporalElement/{http://www.isotc211.org/2005/gmd}EX_TemporalExtent/{http://www.isotc211.org/2005/gmd}extent/{http://www.opengis.net/gml}TimePeriod/{http://www.opengis.net/gml}beginPosition',template_root.nsmap)
find[0].text = current_metadata['StartTime'][:10]
#coords
bb = self._getBoundingBox(current_metadata['Coordinates'])
#lat max = north bound lat
#lat min = south bound lat
#long max = east bound long
#ong min = west bound long
#return [xmax,xmin,ymax,ymin]
#westBoundLongitude
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}identificationInfo/{http://www.isotc211.org/2005/gmd}MD_DataIdentification/{http://www.isotc211.org/2005/gmd}extent/{http://www.isotc211.org/2005/gmd}EX_Extent/{http://www.isotc211.org/2005/gmd}geographicElement/{http://www.isotc211.org/2005/gmd}EX_GeographicBoundingBox/{http://www.isotc211.org/2005/gmd}westBoundLongitude/{http://www.isotc211.org/2005/gco}Decimal',template_root.nsmap)
find[0].text = bb[0]
#eastBoundLongitude
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}identificationInfo/{http://www.isotc211.org/2005/gmd}MD_DataIdentification/{http://www.isotc211.org/2005/gmd}extent/{http://www.isotc211.org/2005/gmd}EX_Extent/{http://www.isotc211.org/2005/gmd}geographicElement/{http://www.isotc211.org/2005/gmd}EX_GeographicBoundingBox/{http://www.isotc211.org/2005/gmd}eastBoundLongitude/{http://www.isotc211.org/2005/gco}Decimal',template_root.nsmap)
find[0].text = bb[1]
#southBoundLatitude
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}identificationInfo/{http://www.isotc211.org/2005/gmd}MD_DataIdentification/{http://www.isotc211.org/2005/gmd}extent/{http://www.isotc211.org/2005/gmd}EX_Extent/{http://www.isotc211.org/2005/gmd}geographicElement/{http://www.isotc211.org/2005/gmd}EX_GeographicBoundingBox/{http://www.isotc211.org/2005/gmd}southBoundLatitude/{http://www.isotc211.org/2005/gco}Decimal',template_root.nsmap)
find[0].text = bb[2]
#northBoundLatitude
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}identificationInfo/{http://www.isotc211.org/2005/gmd}MD_DataIdentification/{http://www.isotc211.org/2005/gmd}extent/{http://www.isotc211.org/2005/gmd}EX_Extent/{http://www.isotc211.org/2005/gmd}geographicElement/{http://www.isotc211.org/2005/gmd}EX_GeographicBoundingBox/{http://www.isotc211.org/2005/gmd}northBoundLatitude/{http://www.isotc211.org/2005/gco}Decimal',template_root.nsmap)
find[0].text = bb[3]
#end time of data
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}identificationInfo/{http://www.isotc211.org/2005/gmd}MD_DataIdentification/{http://www.isotc211.org/2005/gmd}extent/{http://www.isotc211.org/2005/gmd}EX_Extent/{http://www.isotc211.org/2005/gmd}temporalElement/{http://www.isotc211.org/2005/gmd}EX_TemporalExtent/{http://www.isotc211.org/2005/gmd}extent/{http://www.opengis.net/gml}TimePeriod/{http://www.opengis.net/gml}endPosition',template_root.nsmap)
if 'StopTime' in current_metadata.keys():#sentinel 2 products sometimes dont have stoptime
find[0].text = current_metadata['StopTime'][:10]
else:
find[0].text = current_metadata['StartTime'][:10]
#link for the resource described in the metadata
find = template_root.findall('./{http://www.isotc211.org/2005/gmd}distributionInfo/{http://www.isotc211.org/2005/gmd}MD_Distribution/{http://www.isotc211.org/2005/gmd}transferOptions/{http://www.isotc211.org/2005/gmd}MD_DigitalTransferOptions/{http://www.isotc211.org/2005/gmd}onLine/{http://www.isotc211.org/2005/gmd}CI_OnlineResource/{http://www.isotc211.org/2005/gmd}linkage/{http://www.isotc211.org/2005/gmd}URL',template_root.nsmap)
find[0].text = current_metadata['downloadLink']
if writeToFile:
output_filename = outputFolder+metadata_key.upper().split('.')[0]+'.xml' #remove .manifest.safe , add .xml
template_tree.write(output_filename, pretty_print=True)
return template_tree
except lxml.etree.XMLSyntaxError:
print 'File XML Syntax Error'
return None
#except Exception:
#print 'Unspecified error occured, maybe the file doesn\'t exist'
#return None
else:
print 'Wrong metadata key'
return None