例: Web マップのサービスの URL を更新する

この例では、Web マップで参照されているサービスの URL を更新します。この機能は、サービスの URL が変更された際に、ユーザにすべての Web マップからそのサービスを削除して再度追加する操作をさせたくない場合に役立ちます。サービスの URL が変更される理由は、数多くあります。たとえば、サービスを新しいサーバに移行したり、サービスの名前を変更したり、サービスをサーバ上の別のフォルダに移動したり、サーバのドメインの接頭辞を変更したりする場合があります。

スクリプトの実行時に、以下の情報を指定する必要があります。

次の例では、ポータル内のすべての Web マップのマップ サービスの URL http://webadaptor.domain.com/arcgis/rest/services/folderA/ServiceAreas/MapServerhttp://webadaptor.domain.com/arcgis/rest/services/folderB/ServiceAreas/MapServer と置き換えています。

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' : 'referer',
                                   'referer': 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.'
5/10/2014