Ejemplo: Publicar definiciones de servicios listadas en un archivo de texto
Esta secuencia de comandos de ejemplo lee un archivo de texto que contiene una lista de archivos de definición de servicio (SD) y publica cada SD en forma de servicio. Esto es especialmente útil para implementar el mismo conjunto de servicios en muchos ordenadores en un laboratorio o para implementar en servidores de desarrollo, integración y producción.
El archivo de entrada debe tener esta estructura:
#SD|folderName|serviceName|clusterName
SD=\\mylabserver\Yellowstone.sd|folderName=Parks|serviceName=Yellowstone
SD=\\mylabserver\Rainier.sd|serviceName=Rainier
SD=C:\data\BufferGP.sd|serviceName=BufferGeoprocessing
SD=C:\data\Arches.sd|folderName=Parks|serviceName=Arches|clusterName=mapCluster- SD: la ruta del archivo de definición del servicio. Esta ubicación debe ser visible para ArcGIS Server pero no es necesario que esté registrada en ArcGIS Server.
- folderName: nombre de la carpeta de ArcGIS Server que debe contener el servicio. La carpeta debe existir previamente. Si esta propiedad se omite, el servicio se publica a nivel raíz.
- serviceName: nombre del servicio, si desea sobrescribir el nombre que figura en el SD.
- clusterName: nombre del clúster de ArcGIS Server en el cual se debe implementar el servicio. Si se omite, el servicio se publica en el clúster predeterminado.
En primer lugar, la secuencia de comandos comprueba si existe el servicio en la carpeta especificada. Si el servicio existe, se elimina y se vuelve a publicar. Así pues, el archivo de texto puede contener una lista larga de servicios para implementarlos o solo uno para actualizarlo.
import json
import urllib,httplib
import sys
import getpass
import arcpy
import os
import codecs
def main(argv=None):
# Ask for admin user name and password
username = raw_input("Enter user name: ")
password = getpass.getpass("Enter password: ")
# Ask for server name and the port
serverName = raw_input("Enter server name: ")
serverPort = raw_input("Enter server port: ")
# Get a token and connect
token = getToken(username, password, serverName, serverPort)
if token == "":
sys.exit(1)
# Create a connection file to the server
serverURL="http://"+serverName+":"+str(serverPort)+"/arcgis/admin"
try:
arcpy.mapping.CreateGISServerConnectionFile("PUBLISH_GIS_SERVICES",os.curdir,serverName+".ags",serverURL,"ARCGIS_SERVER",username=username,password=password)
except Exception, e:
print e.message
agsConnection = os.path.join(os.curdir, serverName+".ags")
if not os.path.isfile(agsConnection):
print("Unable to connect to ArcGIS Server -- exiting")
sys.exit(1)
# Input file that contains the services information
servicesFile = raw_input("Path to pipe-delimited text file containing services: ")
num = 0
services = {}
for serviceRow in readlinesFromInputFile(servicesFile):
serviceEntry = {}
for index in range(len(serviceRow)):
serviceProp = serviceRow[index].split("=")
if serviceProp[0] == "SD":
serviceEntry["in_sd_file"] = serviceProp[1]
if serviceProp[0] == "serviceName":
serviceEntry["in_service_name"] = serviceProp[1]
if serviceProp[0] == "folderName":
serviceEntry["in_folder"] = serviceProp[1]
if isFolderPresent(serviceProp[1],serverName, serverPort,token):
serviceEntry["in_folder_type"]="EXISTING"
else:
serviceEntry["in_folder_type"]="NEW"
if serviceProp[0] == "clusterName":
serviceEntry["in_cluster"] = serviceProp[1]
if serviceProp[0] == "startupType":
serviceEntry["in_startupType"] = serviceProp[1]
# Add the services information to a dictionary
services["service" + str(num)] = serviceEntry
num +=1
# Call helper functions to publish services
addServices(services,serverName,serverPort,token,agsConnection)
# A function that reads lines from the input file
def readlinesFromInputFile(filename, delim='|'):
file = codecs.open(filename,'r','utf-8-sig')
for line in file.readlines():
# Remove the trailing whitespaces and the newline characters
line = line.rstrip()
if line.startswith('#') or len(line) == 0:
pass # Skip the lines that contain # at the beginning or any empty lines
else:
# Split the current line into list
yield line.split(delim)
file.close()
def addServices(serviceDict, serverName, serverPort, token, agsConnection):
for serviceToAdd in serviceDict:
# Check to see that SD is present and that it is reachable.
if not os.path.isfile(serviceDict[serviceToAdd]['in_sd_file']):
print("Unable to access '" + serviceDict[serviceToAdd]['in_sd_file']+"'. Skipping to publish.")
else:
#Delete the service first (if it exists) and then re-publish it
if serviceDict[serviceToAdd].has_key("in_service_name"):
if serviceDict[serviceToAdd].has_key("in_folder"):
deleteServiceIfPresent(serverName,serverPort,token,serviceDict[serviceToAdd]["in_service_name"],serviceDict[serviceToAdd]["in_folder"])
else:
deleteServiceIfPresent(serverName,serverPort,token,serviceDict[serviceToAdd]["in_service_name"])
serviceDict[serviceToAdd]["in_server"] = agsConnection
print "Publishing the service: " + serviceDict[serviceToAdd]['in_sd_file']
try:
arcpy.UploadServiceDefinition_server(**serviceDict[serviceToAdd])
print "Successfully published the service: " + serviceDict[serviceToAdd]['in_sd_file']
except Exception, e:
print "Publishing of " + serviceDict[serviceToAdd]['in_sd_file'] + " failed."
print e.message
# A function that will post HTTP POST request to the server
def postToServer(serverName, serverPort, url, params):
httpConn = httplib.HTTPConnection(serverName, serverPort)
headers = {"Content-type": "application/x-www-form-urlencoded", "Accept": "text/plain"}
# URL encode the resource URL
url = urllib.quote(url.encode('utf-8'))
# Build the connection to add the roles to the server
httpConn.request("POST", url, params, headers)
response = httpConn.getresponse()
data = response.read()
httpConn.close()
return (response, data)
# A function that checks that the JSON response received from the server does not contain an error
def assertJsonSuccess(data):
obj = json.loads(data)
if 'status' in obj and obj['status'] == "error":
return False
else:
return True
def getToken(username, password, serverName, serverPort):
tokenURL = "/arcgis/admin/generateToken"
params = urllib.urlencode({'username': username, 'password': password,'client': 'requestip', 'f': 'json'})
response, data = postToServer(serverName, serverPort, tokenURL, params)
if (response.status != 200 or not assertJsonSuccess(data)):
print "Error while fetching tokens from admin URL. Please check if the server is running and ensure that the username/password provided are correct"
print str(data)
return
else:
# Extract the token from it
token = json.loads(data)
return token['token']
def isFolderPresent(folderName,serverName, serverPort,token):
params = urllib.urlencode({'token':token,'f': 'json'})
folderURL = "/arcgis/admin/services"
response, data = postToServer(serverName, serverPort, folderURL, params)
if (response.status != 200 or not assertJsonSuccess(data)):
print "Error while fetching folders from the server."
print str(data)
return
servicesJSON = json.loads(data)
folders = servicesJSON['folders']
for folder in folders:
if folder == folderName :
return True
return False
def deleteServiceIfPresent(serverName,serverPort, token, serviceName, folderName='root'):
# If the folder itself is not present, we do not need to check for the service's presence in this folder.
if folderName != 'root' and not isFolderPresent(folderName,serverName, serverPort,token):
return
params = urllib.urlencode({'token':token,'f': 'json'})
if folderName == 'root' :
URL = "/arcgis/admin/services/"
else:
URL = "/arcgis/admin/services/"+folderName
response, data = postToServer(serverName, serverPort, URL, params)
if (response.status != 200 or not assertJsonSuccess(data)):
print "Error while fetching the service information from the server."
print str(data)
return
#extract the services from the JSON response
servicesJSON = json.loads(data)
services = servicesJSON['services']
for service in services:
if service['serviceName'] == serviceName :
##delete the service
params = urllib.urlencode({'token':token,'f': 'json'})
if folderName == 'root' :
URL = "/arcgis/admin/services/"+serviceName+"."+service['type']+"/delete"
else:
URL = "/arcgis/admin/services/"+ folderName + "/" + serviceName+"."+service['type']+"/delete"
print "Found the service '" + serviceName + "."+ service['type'] + " at '" + folderName + "' folder in the server, the service will be deleted and be re-published."
response, data = postToServer(serverName, serverPort, URL, params)
if (response.status != 200 or not assertJsonSuccess(data)):
print "Failed to delete the service: '" + serviceName + "." + service['type']
print str(data)
return
else:
print "Deleted the service '" + serviceName + "."+service['type']+ " successfully."
# Script start
if __name__ == "__main__":
sys.exit(main(sys.argv[1:]))