In diesem Beispiel wird die URL eines Service aktualisiert, auf den in einer Karte verwiesen wird. Dies ist nützlich, wenn die Service-URL sich geändert hat und Sie nicht möchten, dass Benutzer den Service entfernen und allen Webkarten erneut hinzufügen müssen. Es gibt viele Gründe, warum sich eine Service-URL ändern kann. Beispielsweise kann der Service auf einen neuen Server migriert werden, der Name des Service kann sich ändern, der Service kann in einen anderen Ordner auf dem Server verschoben werden oder das Domänen-Präfix des Servers kann sich ändern.
Sie müssen die folgenden Informationen angeben, wenn Sie das Skript ausführen:
- URL für den Zugriff auf Portal for ArcGIS. Dies kann die ArcGIS Web Adaptor-URL, z. B. https://webadaptor.domain.com/arcgis, oder die URL des Computers sein, der das Portal hostet, z. B. https://portal.domain.com:7443/arcgis. Sie müssen den vollständig qualifizierten Domänennamen des Computers einfügen, wenn Sie die URL angeben.
- Benutzername und Kennwort eines Kontos, dem Administratorberechtigungen für das Portal zugewiesen sind.
- Elementtyp, der aktualisiert wird. Geben Sie "Webkarte" an, um alle Karten im Portal zu aktualisieren.
- URL des Service, der aktuell in Webkarten referenziert wird, z. B. http://webadaptor.domain.com/arcgis/rest/services/folderA/ServiceAreas/MapServer.
- URL des Service, der in Webkarten aktualisiert wird, z. B. http://webadaptor.domain.com/arcgis/rest/services/folderB/ServiceAreas/MapServer.
Im folgenden Beispiel wird die Kartenservice-URL http://webadaptor.domain.com/arcgis/rest/services/folderA/ServiceAreas/MapServer für alle Webkarten im Portal durch die Kartenservice-URL http://webadaptor.domain.com/arcgis/rest/services/folderB/ServiceAreas/MapServer ersetzt:
python updateWebmapServices.py https://webadaptor.domain.com/arcgis admin pass.word "type: Web Map" http://webadaptor.domain.com/arcgis/rest/services/folderA/ServiceAreas/MapServer http://webadaptor.domain.com/arcgis/rest/services/folderB/ServiceAreas/MapServer
#!/usr/bin/env python
# Requires Python 2.7+
# Sample Usage:
# python updateWebmapServices.py <sourcePortal> <sourceAdmin> <sourcePassword>
# <query> <oldUrl> <newUrl>
import urllib
import json
import argparse
def generateToken(username, password, portalUrl):
'''Retrieves a token to be used with API requests.'''
parameters = urllib.urlencode({'username' : username,
'password' : password,
'client' : 'referrer',
'referrer': portalUrl,
'expiration': 60,
'f' : 'json'})
response = urllib.urlopen(portalUrl + '/sharing/rest/generateToken?',
parameters).read()
try:
jsonResponse = json.loads(response)
if 'token' in jsonResponse:
return jsonResponse['token']
elif 'error' in jsonResponse:
print jsonResponse['error']['message']
for detail in jsonResponse['error']['details']:
print detail
except ValueError, e:
print 'An unspecified error occurred.'
print e
def searchPortal(portalUrl, query=None, totalResults=None, sortField='numviews',
sortOrder='desc', token=None):
'''
Search the portal using the specified query and search parameters.
Optionally provide a token to return results visible to that user.
'''
# Default results are returned by highest
# number of views in descending order.
allResults = []
if not totalResults or totalResults > 100:
numResults = 100
else:
numResults = totalResults
results = __search__(portalUrl, query, numResults, sortField, sortOrder, 0,
token)
if not 'error' in results.keys():
if not totalResults:
totalResults = results['total'] # Return all of the results.
allResults.extend(results['results'])
while (results['nextStart'] > 0 and
results['nextStart'] < totalResults):
# Do some math to ensure it only
# returns the total results requested.
numResults = min(totalResults - results['nextStart'] + 1, 100)
results = __search__(portalUrl=portalUrl, query=query,
numResults=numResults, sortField=sortField,
sortOrder=sortOrder, token=token,
start=results['nextStart'])
allResults.extend(results['results'])
return allResults
else:
print results['error']['message']
return results
def __search__(portalUrl, query=None, numResults=100, sortField='numviews',
sortOrder='desc', start=0, token=None):
'''Retrieve a single page of search results.'''
params = {
'q': query,
'num': numResults,
'sortField': sortField,
'sortOrder': sortOrder,
'f': 'json',
'start': start
}
if token:
# Adding a token provides an authenticated search.
params['token'] = token
request = portal + '/sharing/rest/search?' + urllib.urlencode(params)
results = json.loads(urllib.urlopen(request).read())
return results
def updateWebmapService(webmapId, oldUrl, newUrl, token, portalUrl):
'''Replaces the URL for a specified map service in a web map.'''
try:
params = urllib.urlencode({'token' : token,
'f' : 'json'})
print 'Getting Info for: ' + webmapId
# Get the item data.
reqUrl = (portalUrl + '/sharing/content/items/' + webmapId +
'/data?' + params)
itemDataReq = urllib.urlopen(reqUrl).read()
itemString = str(itemDataReq)
# Find the service URL to be replaced.
if itemString.find(oldUrl) > -1:
newString = itemString.replace(oldUrl, newUrl)
# Get the item's info for the addItem parameters
itemInfoReq = urllib.urlopen(portalUrl +
'/sharing/content/items/' +
webmapId + '?' + params)
itemInfo = json.loads(itemInfoReq.read(),
object_hook=__decodeDict__)
print 'Updating ' + itemInfo['title']
# Post back the changes overwriting the old map
if(itemInfo['ownerFolder'] is not None):
modRequest = urllib.urlopen(portalUrl +
'/sharing/content/users/' +
itemInfo['owner'] +
'/' + itemInfo['ownerFolder'] +
'/items/' + webmapId +
'/update?' + params ,
urllib.urlencode(
{'text' : newString}
))
else:
modRequest = urllib.urlopen(portalUrl +
'/sharing/content/users/' +
itemInfo['owner'] +
'/items/' + webmapId +
'/update?' + params ,
urllib.urlencode(
{'text' : newString}
))
# Evaluate the results to make sure it happened
modResponse = json.loads(modRequest.read())
if modResponse.has_key('error'):
raise AGOPostError(webmapId, modResponse['error']['message'])
else:
print 'Successfully updated the urls'
else:
print 'Didn\'t find any services with ' + oldUrl
except ValueError as e:
print 'Error - no web map specified'
except AGOPostError as e:
print e.webmap
print 'Error updating web map ' + e.webmap + ': ' + e.msg
# Helper functions for decoding the unicode values in the webmap json.
def __decodeDict__(dct):
newdict = {}
for k, v in dct.iteritems():
k = __safeValue__(k)
v = __safeValue__(v)
newdict[k] = v
return newdict
def __safeValue__(inVal):
outVal = inVal
if isinstance(inVal, unicode):
outVal = inVal.encode('utf-8')
elif isinstance(inVal, list):
outVal = __decode_list__(inVal)
return outVal
def __decode_list__(lst):
newList = []
for i in lst:
i = __safeValue__(i)
newList.append(i)
return newList
class AGOPostError(Exception):
def __init__(self, webmap, msg):
print 'ok'
self.webmap = webmap
self.msg = msg
# Run the script.
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('portal',
help=('url of the Portal (e.g. '
'https://portal.domain.com:7443/arcgis)'))
parser.add_argument('username', help='username')
parser.add_argument('password', help='password')
parser.add_argument('query', help='search string to find content')
parser.add_argument('oldUrl', help='the URL to replace')
parser.add_argument('newUrl', help='the new URL')
# Read the command line arguments.
args = parser.parse_args()
portal = args.portal
username = args.username
password = args.password
query = args.query
oldUrl = args.oldUrl
newUrl = args.newUrl
# Get a token for the source Portal for ArcGIS.
token = generateToken(username=username, password=password,
portalUrl=portal)
# Get a list of the content matching the query.
content = searchPortal(portalUrl=portal,
query=query,
token=token)
for item in content:
if item['type'] == 'Web Map':
updateWebmapService(item['id'], oldUrl, newUrl, token=token,
portalUrl=portal)
print 'Update complete.'