def calcValue(row, names, calcString):
# calculate a value based on source fields and/or other expressions
outVal = ""
calcList = calcString.split("|")
for strVal in calcList:
if strVal in names:
try:
fidx = names.index(strVal)
if str(row[fidx]) != row[fidx]:
outVal += str(row[fidx])
else:
outVal += '"' + str(row[fidx]) + '"'
except:
outVal += strVal
else:
outVal += strVal
if len(calcList) == 1 and outVal == '':
outVal = calcList[0]
try:
if (outVal != "" and outVal != None):
outVal = eval(outVal)
except:
dla.addMessage("Error evaluating:" + outVal)
dla.showTraceback()
dla.addError("Error calculating field values:" + outVal)
outVal = None
return outVal
def calcValue(row,names,calcString):
# calculate a value based on source fields and/or other expressions
outVal = ""
calcList = calcString.split("|")
for strVal in calcList:
if strVal in names:
try:
fidx = names.index(strVal)
if str(row[fidx]) != row[fidx]:
outVal += str(row[fidx])
else:
outVal += '"' + str(row[fidx]) + '"'
except:
outVal += strVal
else:
outVal += strVal
if len(calcList) == 1 and outVal == '':
outVal = calcList[0]
try:
if(outVal != "" and outVal != None):
outVal = eval(outVal)
except:
dla.addMessage("Error evaluating:" + outVal)
dla.showTraceback()
dla.addError("Error calculating field values:" + outVal)
outVal = None
return outVal
def hasCapabilities(url, token, checkList):
hasit = False
if token != None and isFeatureLayerUrl(url):
params = {'f': 'pjson', 'token': token}
response = sendRequest(url, params)
if response != None:
try:
error = json.dumps(response['error'])
dla.addError('Unable to access service properties ' + error)
return False
except:
hasit = True
try:
capabilities = json.dumps(response['capabilities'])
dla.addMessage('Service REST capabilities: ' + capabilities)
for item in checkList:
if capabilities.find(item) == -1:
#dla.addMessage('Service does not support: ' + item)
hasit = False
else:
dla.addMessage('Service supports: ' + item)
except:
dla.addError('Unable to access service capabilities')
hasit = False
else:
dla.addError('Unable to access service')
hasit = False
return hasit
def getServiceName(url):
parts = url.split('/')
lngth = len(parts)
if len(parts) > 8:
dla.addMessage("Service Name: " + parts[len(parts) - 3])
return parts[len(parts) - 3]
else:
return None
def writeDocument(sourceDataset,targetDataset,xmlFileName):
desc = arcpy.Describe(sourceDataset)
descT = arcpy.Describe(targetDataset)
sourcePath = getLayerPath(desc)
targetPath = getLayerPath(descT)
## Added May2016. warn user if capabilities are not correct, exit if not a valid layer
if not dla.checkServiceCapabilities(sourcePath,False):
dla.addMessage(sourceDataset + ' Does not appear to be a feature service layer, exiting. Check that you selected a layer not a service')
return False
if not dla.checkServiceCapabilities(targetPath,False):
dla.addMessage(targetDataset + ' Does not appear to be a feature service layer, exiting. Check that you selected a layer not a service')
return False
xmlDoc = Document()
root = xmlDoc.createElement('SourceTargetMatrix')
xmlDoc.appendChild(root)
root.setAttribute("version",'1.1')
root.setAttribute("xmlns:esri",'http://www.esri.com')
dataset = xmlDoc.createElement("Datasets")
root.appendChild(dataset)
setSourceTarget(dataset,xmlDoc,"Source",sourcePath)
setSourceTarget(dataset,xmlDoc,"Target",targetPath)
setSpatialReference(dataset,xmlDoc,desc,"Source")
setSpatialReference(dataset,xmlDoc,descT,"Target")
setSourceTarget(dataset,xmlDoc,"ReplaceBy","")
fieldroot = xmlDoc.createElement("Fields")
root.appendChild(fieldroot)
fields = getFields(descT,targetDataset)
sourceFields = getFields(desc,sourceDataset)
sourceNames = [field.name[field.name.rfind(".")+1:] for field in sourceFields]
upperNames = [nm.upper() for nm in sourceNames]
#try:
for field in fields:
fNode = xmlDoc.createElement("Field")
fieldroot.appendChild(fNode)
fieldName = field.name[field.name.rfind(".")+1:]
matchSourceFields(xmlDoc,fNode,field,fieldName,sourceNames,upperNames)
# write the source field values
setSourceFields(root,xmlDoc,sourceFields)
setTargetFields(root,xmlDoc,fields)
# Should add a template section for value maps, maybe write domains...
# could try to preset field mapping and domain mapping...
# add some data to the document
writeDataSample(xmlDoc,root,sourceNames,sourceDataset,10)
# write it out
xmlDoc.writexml( open(xmlFileName, 'w'),indent=" ",addindent=" ",newl='\n')
xmlDoc.unlink()
def simplifyPolygons(sourceDataset):
# simplfy polygons using approach developed by Chris Bus.
dla.addMessage("Simplifying (densifying) Parcel Geometry")
arcpy.Densify_edit(sourceDataset)
simplify = sourceDataset + '_simplified'
if arcpy.Exists(simplify):
arcpy.Delete_management(simplify)
if arcpy.Exists(simplify + '_Pnt'):
arcpy.Delete_management(simplify + '_Pnt')
arcpy.SimplifyPolygon_cartography(sourceDataset, simplify, "POINT_REMOVE", "1 Meters")
return simplify
def simplifyPolygons(sourceDataset):
# simplify polygons using approach developed by Chris Bus.
dla.addMessage("Simplifying (densifying) Geometry")
arcpy.Densify_edit(sourceDataset)
simplify = sourceDataset + '_simplified'
if arcpy.Exists(simplify):
arcpy.Delete_management(simplify)
if arcpy.Exists(simplify + '_Pnt'):
arcpy.Delete_management(simplify + '_Pnt')
arcpy.SimplifyPolygon_cartography(sourceDataset, simplify, "POINT_REMOVE", "1 Meters")
return simplify
def getLayerPath(desc): # requires arcpy.Describe object
# altered May31 2016 to handle no .path for layer...
pth = None
try:
pth = desc.catalogPath
except:
try:
pth = desc.path
except:
dla.addError('Unable to obtain a source path for this layer. Please select a feature layer and re-run this tool')
if pth != None:
dla.addMessage(pth)
return pth
def extract(xmlFileName, rowLimit, workspace, sourceLayer, targetFC):
xmlDoc = dla.getXmlDoc(xmlFileName)
if workspace == "" or workspace == "#" or workspace == None:
dla.workspace = arcpy.env.scratchGDB
else:
dla.workspace = workspace
fields = dla.getFields(xmlFileName)
success = True
name = ''
try:
if not arcpy.Exists(dla.workspace):
dla.addMessage(dla.workspace +
" does not exist, attempting to create")
dla.createGeodatabase()
if len(fields) > 0:
arcpy.SetProgressor("step", "Importing Layer...", 0, 1, 1)
if sourceLayer == '' or sourceLayer == '#':
source = dla.getNodeValue(xmlDoc, "Datasets/Source")
else:
source = sourceLayer
if targetFC == '' or targetFC == '#':
targetName = dla.getTargetName(xmlDoc)
else:
targetName = targetFC[targetFC.rfind(os.sep) + 1:]
sourceName = dla.getSourceName(xmlDoc)
arcpy.SetProgressorLabel("Loading " + sourceName + " to " +
targetName + "...")
#if not arcpy.Exists(sourceLayer):
# dla.addError("Layer " + sourceLayer + " does not exist, exiting")
# return
retVal = exportDataset(xmlDoc, sourceLayer, dla.workspace,
targetName, rowLimit)
if retVal == False:
success = False
arcpy.SetProgressorPosition()
except:
dla.addError("A Fatal Error occurred")
dla.showTraceback()
success = False
finally:
arcpy.ResetProgressor()
#arcpy.RefreshCatalog(dla.workspace)
arcpy.ClearWorkspaceCache_management(dla.workspace)
return success
def getLayerPath(desc): # requires arcpy.Describe object
# altered May31 2016 to handle no .path for layer...
pth = None
try:
pth = desc.catalogPath
except:
try:
pth = desc.path
except:
dla.addError(
'Unable to obtain a source path for this layer. Please select a feature layer and re-run this tool'
)
if pth != None:
dla.addMessage(pth)
return pth
def extract(xmlFileName,rowLimit,workspace,sourceLayer,targetFC):
xmlDoc = dla.getXmlDoc(xmlFileName)
if workspace == "" or workspace == "#" or workspace == None:
dla.workspace = arcpy.env.scratchGDB
else:
dla.workspace = workspace
fields = dla.getFields(xmlFileName)
success = True
name = ''
try:
if not arcpy.Exists(dla.workspace):
dla.addMessage(dla.workspace + " does not exist, attempting to create")
dla.createGeodatabase()
if len(fields) > 0:
arcpy.SetProgressor("step", "Importing Layer...",0,1,1)
if sourceLayer == '' or sourceLayer == '#':
source = dla.getNodeValue(xmlDoc,"Datasets/Source")
else:
source = sourceLayer
if targetFC == '' or targetFC == '#':
targetName = dla.getTargetName(xmlDoc)
else:
targetName = targetFC[targetFC.rfind(os.sep)+1:]
sourceName = dla.getSourceName(xmlDoc)
arcpy.SetProgressorLabel("Loading " + sourceName + " to " + targetName +"...")
#if not arcpy.Exists(sourceLayer):
# dla.addError("Layer " + sourceLayer + " does not exist, exiting")
# return
retVal = exportDataset(xmlDoc,sourceLayer,dla.workspace,targetName,rowLimit)
if retVal == False:
success = False
arcpy.SetProgressorPosition()
except:
dla.addError("A Fatal Error occurred")
dla.showTraceback()
success = False
finally:
arcpy.ResetProgressor()
#arcpy.RefreshCatalog(dla.workspace)
arcpy.ClearWorkspaceCache_management(dla.workspace)
return success
def theProjectWay():
"""
This function is currently not used. It is an alternative to the create feature class/append approach
currently being used. It is slower because the entire dataset is projected first, and it is less
straightforward because it adds the transform method that append seems to know how to handle already.
It is better though because it will actually raise trappable errors while Append fails silently...
The solution in the other function is to count the resulting records and report issues.
"""
if targetRef != '':
if arcpy.Exists(targetName):
arcpy.Delete_management(targetName)
inttable = workspace + os.sep + targetName + "_prj"
arcpy.env.workspace = workspace
xform = None
desc = arcpy.Describe(sourceLayer)
xforms = arcpy.ListTransformations(desc.spatialReference, targetRef,
desc.extent)
#if sourceRef.exportToString().find("NAD_1983") > -1 and targetRef.exportToString().find("WGS_1984") > -1:
xform = xforms[0]
#for xform in xforms:
dla.addMessage("Transform: " + xform)
try:
res = arcpy.Project_management(sourceLayer,
inttable,
out_coor_system=targetRef,
transform_method=xform)
except:
dla.showTraceback()
err = "Unable to project the data to the target spatial reference, please check settings and try projecting manually in ArcGIS"
dla.addError(err)
return False
dla.addMessage("Features projected")
view = dla.makeFeatureViewForLayer(dla.workspace, inttable, viewName,
whereClause, xmlFields)
dla.addMessage("View Created")
#except:
# arcpy.AddError("Unabled to create feature View " + viewName)
count = arcpy.GetCount_management(view).getOutput(0)
dla.addMessage(str(count) + " source rows")
#sourceRef = getSpatialReference(xmlDoc,"Source")
#res = arcpy.CreateFeatureclass_management(workspace,targetName,template=sourceLayer,spatial_reference=targetRef)
res = arcpy.CopyFeatures_management(view, targetName)
dla.addMessage("Features copied")
def extract(xmlFileName, rowLimit, workspace, source, target, datasetType):
xmlDoc = dla.getXmlDoc(xmlFileName)
if workspace == "" or workspace == "#" or workspace == None:
dla.workspace = dla.setWorkspace()
else:
dla.workspace = workspace
fields = dla.getFields(xmlFileName)
success = True
name = ''
try:
if not arcpy.Exists(dla.workspace):
dla.addMessage(dla.workspace +
" does not exist, attempting to create")
dla.createGeodatabase()
if len(fields) > 0:
arcpy.SetProgressor("step", "Importing Layer...", 0, 1, 1)
targetName = dla.getDatasetName(target)
sourceName = dla.getDatasetName(source)
arcpy.SetProgressorLabel("Loading " + sourceName + " to " +
targetName + "...")
if not arcpy.Exists(source):
dla.addError("Layer " + source + " does not exist, exiting")
return
retVal = exportDataset(xmlDoc, source, dla.workspace, targetName,
rowLimit, datasetType)
if retVal == False:
success = False
arcpy.SetProgressorPosition()
except:
dla.addError("A Fatal Error occurred")
dla.showTraceback()
success = False
finally:
arcpy.ResetProgressor()
#arcpy.RefreshCatalog(dla.workspace)
arcpy.ClearWorkspaceCache_management(dla.workspace)
return success
def test2():
dla._project = arcpy.mp.ArcGISProject(
r"C:\Users\Steve\Documents\ArcGIS\Projects\pbmpolygons\pbmpolygons.aprx"
)
ws = r"C:\Users\Steve\Documents\ArcGIS\Projects\MyProject11\shp\Data Assistant 10.4 Testing\pbmnorepair.gdb"
base = "pbmpoly"
res = arcpy.GetCount_management(os.path.join(ws, base))
cnt = int(res.getOutput(0))
chunk = 100000
lngth = int(cnt / chunk)
for group in range(0, lngth):
minoid = group * chunk
where = 'OBJECTID > ' + str(minoid) + ' AND OBJECTID <= ' + str(
minoid + chunk)
dla.addMessage(where)
layername = "pbmpolys"
if arcpy.Exists(layername):
arcpy.Delete_management(layername)
result = arcpy.MakeFeatureLayer_management(in_features=os.path.join(
ws, base),
where_clause=where,
workspace=ws,
out_layer=layername)
cnt = result.getOutput(0)
outpath = r"C:\Users\Steve\Documents\ArcGIS\Projects\MyProject11\shp\Data Assistant 10.4 Testing\pbm.gdb"
outname = "pbmpoly" + str(group)
ds = os.path.join(outpath, outname)
if arcpy.Exists(ds):
arcpy.Delete_management(ds)
arcpy.FeatureClassToFeatureClass_conversion(in_features=layername,
out_path=outpath,
out_name=outname)
outdoc = r"C:\Users\Steve\Documents\ArcGIS\Projects\pbmpolygons\pbm" + str(
group) + ".xml"
svce = r"http://services.arcgis.com/b6gLrKHqgkQb393u/arcgis/rest/services/TaxDistribution/FeatureServer/0"
dlaCreateSourceTarget.createDlaFile(ds, svce, outdoc)
def getLayerPath(pth): # requires string for layer argument
# altered May31 2016 to handle no .path for layer...
# altered August 2016 - Pro 1.3.1 changes in urls for feature service layers
if pth != None:
pthurl = dla.getLayerSourceUrl(pth)
desc = arcpy.Describe(pthurl)
try:
pth = desc.catalogPath
#dla.addMessage("catalogPath:" + pth)
except:
try:
pth = desc.path
#dla.addMessage("path:" + pth)
except:
dla.addError('Unable to obtain a source path for this layer. Please select a feature layer and re-run this tool')
pth = None
if pth != None:
pth = dla.getLayerServiceUrl(pth)
dla.addMessage("Output path:" + pth)
return pth
def removeDefaultValues(dataset):
# exported source fields may contain DefaultValues, which can replace None/null values in field calculations
sourceFields = arcpy.ListFields(
dataset) # xmlDoc.getElementsByTagName("SourceField")
#stypes = arcpy.da.ListSubtypes(dataset) # my current understanding is that the intermediate/exported dataset will not have subtypes, just default/0 subtype if present in source dataset.
dla.addMessage(
"Removing Default Value property from intermediate database fields")
for sfield in sourceFields:
fname = sfield.name
if sfield.defaultValue != None:
try:
arcpy.AssignDefaultToField_management(
in_table=dataset,
field_name=fname,
default_value=None,
clear_value=True) # clear the Defaults
except:
dla.addMessage(
"Unable to set DefaultValue for " + fname
) # skip GlobalIDs/other fields that cannot be updated. Should not have a default set in these cases
def getOIDs(targelUrl,expr):
# get the list of oids.
ids = []
arcpy.SetProgressor("default","Querying Existing Features")
arcpy.SetProgressorLabel("Querying Existing Features")
url = targelUrl + '/query'
#dla.addMessage("Url:"+url)
token = dla.getSigninToken()
if expr != '':
params = {'f': 'pjson', 'where': expr,'token':token,'returnIdsOnly':'true'}
else:
params = {'f': 'pjson', 'where': '1=1','token':token,'returnIdsOnly':'true'}
#dla.addMessage("Params:"+json.dumps(params))
result = dla.sendRequest(url,params)
try:
if result['error'] != None:
retval = False
dla.addMessage("Query features from Feature Service failed")
dla.addMessage(json.dumps(result))
error = True
except:
ids = result['objectIds']
lenFound = len(ids)
msg = str(lenFound) + " features found in existing Service"
print(msg)
dla.addMessage(msg)
retval = True
return ids
def getFieldMap(view, ds):
fieldMaps = arcpy.FieldMappings()
fieldMaps.addTable(ds)
inFields = [
field.name for field in arcpy.ListFields(view)
if field.name.upper() not in dla._ignoreFields
] # not field.required removed after .Enabled issue
removenames = []
for i in range(fieldMaps.fieldCount):
field = fieldMaps.fields[i]
fmap = fieldMaps.getFieldMap(i)
fName = field.name
for s in range(0, fmap.inputFieldCount):
try:
fmap.removeInputField(0)
except:
pass
try:
f = -1
try:
f = inFields.index(fName) # simple case where names are equal
except:
f = inFields.index(
fName.replace('_', '.', 1)
) # just replace the first char - more complex case like xfmr.phase_designation
if f > -1:
inField = inFields[f]
fmap.addInputField(view, inField)
fieldMaps.replaceFieldMap(i, fmap)
except:
removenames.append(fName)
for name in removenames:
i = fieldMaps.findFieldMapIndex(name)
fieldMaps.removeFieldMap(i)
dla.addMessage(name + ' removed from fieldMappings')
return fieldMaps
def theProjectWay():
"""
This function is currently not used. It is an alternative to the create feature class/append approach
currently being used. It is slower because the entire dataset is projected first, and it is less
straightforward because it adds the transform method that append seems to know how to handle already.
It is better though because it will actually raise trappable errors while Append fails silently...
The solution in the other function is to count the resulting records and report issues.
"""
if targetRef != '':
if arcpy.Exists(targetName):
arcpy.Delete_management(targetName)
inttable = workspace+os.sep+targetName+"_prj"
arcpy.env.workspace = workspace
xform = None
desc = arcpy.Describe(sourceLayer)
xforms = arcpy.ListTransformations(desc.spatialReference, targetRef, desc.extent)
#if sourceRef.exportToString().find("NAD_1983") > -1 and targetRef.exportToString().find("WGS_1984") > -1:
xform = xforms[0]
#for xform in xforms:
dla.addMessage("Transform: " + xform)
try:
res = arcpy.Project_management(sourceLayer,inttable,out_coor_system=targetRef,transform_method=xform)
except:
dla.showTraceback()
err = "Unable to project the data to the target spatial reference, please check settings and try projecting manually in ArcGIS"
dla.addError(err)
return False
dla.addMessage("Features projected")
view = dla.makeFeatureViewForLayer(dla.workspace,inttable,viewName,whereClause,xmlFields)
dla.addMessage("View Created")
#except:
# arcpy.AddError("Unabled to create feature View " + viewName)
count = arcpy.GetCount_management(view).getOutput(0)
dla.addMessage(str(count) + " source rows")
#sourceRef = getSpatialReference(xmlDoc,"Source")
#res = arcpy.CreateFeatureclass_management(workspace,targetName,template=sourceLayer,spatial_reference=targetRef)
res = arcpy.CopyFeatures_management(view,targetName)
dla.addMessage("Features copied")
def main(argv=None):
global sourceDataset, targetDataset, xmlFileName
dla.addMessage(sourceDataset)
dla.addMessage(targetDataset)
dla.addMessage(xmlFileName)
if not os.path.exists(matchxslt):
msg = matchxslt + " does not exist, exiting"
arcpy.AddError(msg)
print(msg)
return
if not os.path.exists(matchfile):
msg = matchfile + " does not exist, exiting"
arcpy.AddError(msg)
print(msg)
return
createDlaFile(sourceDataset, targetDataset, xmlFileName)
def main(argv = None):
global sourceDataset,targetDataset,xmlFileName
dla.addMessage(sourceDataset)
dla.addMessage(targetDataset)
dla.addMessage(xmlFileName)
if not os.path.exists(matchxslt):
msg = matchxslt + " does not exist, exiting"
arcpy.AddError(msg)
print(msg)
return
if not os.path.exists(matchfile):
msg = matchfile + " does not exist, exiting"
arcpy.AddError(msg)
print(msg)
return
createDlaFile(sourceDataset,targetDataset,xmlFileName)
def main(argv = None):
global source,target,xmlFileName
source = dla.checkIsLayerFile(source,sourceStr)
target = dla.checkIsLayerFile(target,targetStr)
dla.addMessage("Source: " + str(source))
dla.addMessage("Target: " + str(target))
dla.addMessage("File: " + xmlFileName)
if not os.path.exists(matchxslt):
msg = matchxslt + " does not exist, exiting"
arcpy.AddError(msg)
print(msg)
return
if not os.path.exists(matchfile):
msg = matchfile + " does not exist, exiting"
arcpy.AddError(msg)
print(msg)
return
createDlaFile(source,target,xmlFileName)
def getOIDs(targelUrl, expr):
# get the list of oids.
ids = []
arcpy.SetProgressor("default", "Querying Existing Features")
arcpy.SetProgressorLabel("Querying Existing Features")
url = targelUrl + '/query'
#dla.addMessage("Url:"+url)
token = dla.getSigninToken()
if expr != '':
params = {
'f': 'pjson',
'where': expr,
'token': token,
'returnIdsOnly': 'true'
}
else:
params = {
'f': 'pjson',
'where': '1=1',
'token': token,
'returnIdsOnly': 'true'
}
#dla.addMessage("Params:"+json.dumps(params))
result = dla.sendRequest(url, params)
try:
if result['error'] != None:
retval = False
dla.addMessage("Query features from Feature Service failed")
dla.addMessage(json.dumps(result))
error = True
except:
ids = result['objectIds']
lenFound = len(ids)
msg = str(lenFound) + " features found in existing Service"
print(msg)
dla.addMessage(msg)
retval = True
return ids
def setFieldValues(table, fields, names, ftypes, lengths):
# from source xml file match old values to new values to prepare for append to target geodatabase
success = False
row = None
try:
updateCursor = arcpy.da.UpdateCursor(table, names)
result = arcpy.GetCount_management(table)
numFeat = int(result.getOutput(0))
dla.addMessage(table + ", " + str(numFeat) + " features")
i = 0
arcpy.SetProgressor("Step", "Calculating " + table + "...", 0, numFeat,
getProgressUpdate(numFeat))
for row in updateCursor:
success = True
if dla._errCount > dla.maxErrorCount:
dla.addError(
"Exceeded max number of errors in dla.maxErrorCount: " +
str(dla.maxErrorCount))
return False
if i > dla.maxrows:
dla.addError(
"Exceeded max number of rows supported in dla.maxrows: " +
str(dla.maxrows))
return True
i = i + 1
setProgressor(i, numFeat)
for field in fields:
method = "None"
sourceName = dla.getNodeValue(field,
"SourceName").replace('.', '_')
targetName = dla.getNodeValue(field,
"TargetName").replace('.', '_')
targetValue = getTargetValue(row, field, names, sourceName,
targetName)
sourceValue = getSourceValue(row, names, sourceName,
targetName)
method = dla.getNodeValue(field, "Method").replace(" ", "")
try:
fnum = dla.getFieldIndexList(names, targetName)
except:
fnum = None # defensive check to skip fields that do not exist even though they are listed in Xml
if fnum != None:
if method == "None" or (method == "Copy"
and sourceName == '(None)'):
method = "None"
val = None
elif method == "Copy":
val = sourceValue
elif method == "DefaultValue":
val = dla.getNodeValue(field, "DefaultValue")
elif method == "SetValue":
val = dla.getNodeValue(field, "SetValue")
elif method == "ValueMap":
val = getValueMap(targetName, sourceValue, field)
elif method == "DomainMap":
val = getDomainMap(row, sourceValue, field)
elif method == "ChangeCase":
case = dla.getNodeValue(field, method)
expression = getChangeCase(sourceValue, case)
val = getExpression(row, names, expression)
elif method == "Concatenate":
val = getConcatenate(row, names, field)
elif method == "Left":
chars = dla.getNodeValue(field, "Left")
val = getSubstring(sourceValue, "0", chars)
elif method == "Right":
chars = dla.getNodeValue(field, "Right")
val = getSubstring(sourceValue,
len(str(sourceValue)) - int(chars),
len(str(sourceValue)))
elif method == "Substring":
start = dla.getNodeValue(field, "Start")
length = dla.getNodeValue(field, "Length")
val = getSubstring(sourceValue, start, length)
elif method == "Split":
splitter = dla.getNodeValue(field, "SplitAt")
splitter = splitter.replace("(space)", " ")
part = dla.getNodeValue(field, "Part")
val = getSplit(sourceValue, splitter, part)
elif method == "ConditionalValue":
sname = dla.getNodeValue(field, "SourceName")
oper = dla.getNodeValue(field, "Oper")
iif = dla.getNodeValue(field, "If")
if iif != " " and type(iif) == 'str':
for name in names:
if name in iif:
iif = iif.replace(name, "|" + name + "|")
tthen = dla.getNodeValue(field, "Then")
eelse = dla.getNodeValue(field, "Else")
for name in names:
if name in eelse:
eelse = eelse.replace(name, "|" + name + "|")
expression = "|" + tthen + "| " + " if |" + sname + "| " + oper + " |" + iif + "| else " + eelse
val = getExpression(row, names, expression)
elif method == "Expression":
expression = dla.getNodeValue(field, method)
for name in names:
expression = expression.replace(
name, "|" + name + "|")
val = getExpression(row, names, expression)
# set field value
newVal = getValue(ftypes[fnum], lengths[fnum], targetName,
targetValue, val)
row[fnum] = newVal
if dla.debug == True:
dla.addMessage(targetName + ':' + str(newVal) + ':' +
str(targetValue))
try:
updateCursor.updateRow(row)
#printRow(row,names)
except:
dla._errCount += 1
success = False
err = "Exception caught: unable to update row"
if dla._errCount < 200:
printRow(row, names)
dla.showTraceback()
else:
if dla._errCount < 2000:
dla.addMessage(
'More than 200 errors encountered... debug output suppressed'
)
dla.addError(err)
except:
dla._errCount += 1
success = False
err = "Exception caught: unable to update dataset"
if row != None:
printRow(row, names)
dla.showTraceback()
dla.addError(err)
finally:
del updateCursor
dla.cleanupGarbage()
arcpy.ResetProgressor()
return success
def publish(xmlFileNames):
# function called from main or from another script, performs the data update processing
global sourceLayer,targetLayer,_success
dla._errorCount = 0
arcpy.SetProgressor("default","Data Assistant")
arcpy.SetProgressorLabel("Data Assistant")
xmlFiles = xmlFileNames.split(";")
for xmlFile in xmlFiles: # multi value parameter, loop for each file
dla.addMessage("Configuration file: " + xmlFile)
xmlDoc = dla.getXmlDoc(xmlFile) # parse the xml document
if xmlDoc == None:
return
svceS = False
svceT = False
if sourceLayer == "" or sourceLayer == None:
sourceLayer = dla.getNodeValue(xmlDoc,"Source")
svceS = dla.checkLayerIsService(sourceLayer)
if targetLayer == "" or targetLayer == None:
targetLayer = dla.getNodeValue(xmlDoc,"Target")
svceT = dla.checkLayerIsService(targetLayer)
dla.addMessage(targetLayer)
## Added May2016. warn user if capabilities are not correct, exit if not a valid layer
if not dla.checkServiceCapabilities(sourceLayer,True):
return False
if not dla.checkServiceCapabilities(targetLayer,True):
return False
if svceS == True or svceT == True:
token = dla.getSigninToken() # when signed in get the token and use this. Will be requested many times during the publish
if token == None:
dla.addError("User must be signed in for this tool to work with services")
return
expr = getWhereClause(xmlDoc)
if useReplaceSettings == True and (expr == '' or expr == None):
dla.addError("There must be an expression for replacing by field value, current value = " + str(expr))
return False
dla.setWorkspace()
targetName = dla.getTargetName(xmlDoc)
res = dlaExtractLayerToGDB.extract(xmlFile,None,dla.workspace,sourceLayer,targetName)
if res != True:
table = dla.getTempTable(targetName)
msg = "Unable to export data, there is a lock on existing datasets or another unknown error"
if arcpy.TestSchemaLock(table) != True:
msg = "Unable to export data, there is a lock on the intermediate feature class: " + table
dla.addError(msg)
print(msg)
return
else:
res = dlaFieldCalculator.calculate(xmlFile,dla.workspace,targetName,False)
if res == True:
dlaTable = dla.getTempTable(targetName)
res = doPublish(xmlDoc,dlaTable,targetLayer)
arcpy.ResetProgressor()
sourceLayer = None # set source and target back to None for multiple file processing
targetLayer = None
if res == False:
err = "Data Assistant Update Failed, see messages for details"
dla.addError(err)
print(err)
def publish(xmlFileNames):
# function called from main or from another script, performs the data update processing
global _useReplaceSettings
dla._errCount = 0
arcpy.SetProgressor("default","Data Assistant")
arcpy.SetProgressorLabel("Data Assistant")
xmlFiles = xmlFileNames.split(";")
layers = []
for xmlFile in xmlFiles: # multi value parameter, loop for each file
xmlFile = dla.getXmlDocName(xmlFile)
dla.addMessage("Configuration file: " + xmlFile)
xmlDoc = dla.getXmlDoc(xmlFile) # parse the xml document
if xmlDoc == None:
return
prj = dla.setProject(xmlFile,dla.getNodeValue(xmlDoc,"Project"))
if prj == None:
dla.addError("Unable to open your project, please ensure it is in the same folder as your current project or your Config file")
return False
source = dla.getDatasetPath(xmlDoc,"Source")
target = dla.getDatasetPath(xmlDoc,"Target")
targetName = dla.getDatasetName(target)
dla.addMessage(source)
dla.addMessage(target)
if dlaService.checkLayerIsService(source) or dlaService.checkLayerIsService(target):
token = dlaService.getSigninToken() # when signed in get the token and use this. Will be requested many times during the publish
# exit here before doing other things if not signed in
if token == None:
dla.addError("User must be signed in for this tool to work with services")
return False
expr = getWhereClause(xmlDoc)
if _useReplaceSettings == True and (expr == '' or expr == None):
dla.addError("There must be an expression for replacing by field value, current value = " + str(expr))
return False
errs = False
if dlaService.validateSourceUrl(source) == False:
dla.addError("Source path does not appear to be a valid feature layer")
errs = True
if _useReplaceSettings == True:
if dlaService.validateTargetReplace(target) == False:
dla.addError("Target path does not have correct privileges")
errs = True
elif _useReplaceSettings == False:
if dlaService.validateTargetAppend(target) == False:
dla.addError("Target path does not have correct privileges")
errs = True
if errs:
return False
dla.setWorkspace()
if dla.isTable(source) or dla.isTable(target):
datasetType = 'Table'
else:
datasetType = 'FeatureClass'
if not dla.isStaged(xmlDoc):
res = dlaExtractLayerToGDB.extract(xmlFile,None,dla.workspace,source,target,datasetType)
if res != True:
table = dla.getTempTable(targetName)
msg = "Unable to export data, there is a lock on existing datasets or another unknown error"
if arcpy.TestSchemaLock(table) != True and arcpy.Exists(table) == True:
msg = "Unable to export data, there is a lock on the intermediate feature class: " + table
dla.addError(msg)
print(msg)
return
else:
res = dlaFieldCalculator.calculate(xmlFile,dla.workspace,targetName,False)
if res == True:
dlaTable = dla.getTempTable(targetName)
res = doPublish(xmlDoc,dlaTable,target,_useReplaceSettings)
else:
dla.addMessage('Data previously staged, will proceed using intermediate dataset')
dlaTable = dla.workspace + os.sep + dla.getStagingName(source,target)
res = doPublish(xmlDoc,dlaTable,target,_useReplaceSettings)
if res == True:
dla.removeStagingElement(xmlDoc)
xmlDoc.writexml(open(xmlFile, 'wt', encoding='utf-8'))
dla.addMessage('Staging element removed from config file')
arcpy.ResetProgressor()
if res == False:
err = "Data Assistant Update Failed, see messages for details"
dla.addError(err)
print(err)
else:
layers.append(target)
arcpy.SetParameter(_outParam,';'.join(layers))
def addFeatures(sourceLayer,targelUrl,expr):
# add features using _chunkSize
retval = False
error = False
# add section
try:
arcpy.SetProgressor("default","Adding Features")
arcpy.SetProgressorLabel("Adding Features")
featurejs = featureclass_to_json(sourceLayer)
url = targelUrl + '/addFeatures'
numFeat = len(featurejs['features'])
if numFeat == 0:
dla.addMessage("0 Features to Add, exiting")
return True # nothing to add is OK
if numFeat > _chunkSize:
chunk = _chunkSize
else:
chunk = numFeat
featuresProcessed = 0
while featuresProcessed < numFeat and error == False:
next = featuresProcessed + chunk
features = featurejs['features'][featuresProcessed:next]
msg = "Adding features " + str(featuresProcessed) + ":" + str(next)
dla.addMessage(msg)
arcpy.SetProgressorLabel(msg)
token = dla.getSigninToken()
params = {'rollbackonfailure': 'true','f':'json', 'token':token, 'features': json.dumps(features)}
result = dla.sendRequest(url,params)
try:
if result['error'] != None:
retval = False
dla.addMessage("Add features to Feature Service failed")
dla.addMessage(json.dumps(result))
error = True
except:
try:
lenAdded = len(result['addResults'])
msg = str(lenAdded) + " features added, " + str(featuresProcessed + chunk) + "/" + str(numFeat)
print(msg)
dla.addMessage(msg)
retval = True
except:
retval = False
dla.addMessage("Add features to Feature Service failed")
dla.showTraceback()
dla.addError(json.dumps(result))
error = True
featuresProcessed += chunk
except:
retval = False
dla.addMessage("Add features to Feature Service failed")
dla.showTraceback()
error = True
pass
return retval
def deleteFeatures(sourceLayer,targelUrl,expr):
# delete features using chunks of _chunkSize
retval = False
error = False
# delete section
ids = getOIDs(targelUrl,expr)
try:
lenDeleted = 100
#Chunk deletes using chunk size at a time
featuresProcessed = 0
numFeat = len(ids)
if numFeat == 0:
dla.addMessage("0 Features to Delete, exiting")
return True # nothing to delete is OK
if numFeat > _chunkSize:
chunk = _chunkSize
else:
chunk = numFeat
arcpy.SetProgressor("default","Deleting Features")
while featuresProcessed < numFeat and error == False:
#Chunk deletes using chunk size at a time
next = featuresProcessed + chunk
msg = "Deleting features " + str(featuresProcessed) + ":" + str(next)
dla.addMessage(msg)
arcpy.SetProgressorLabel(msg)
oids = ",".join(str(e) for e in ids[featuresProcessed:next])
url = targelUrl + '/deleteFeatures'
token = dla.getSigninToken()
params = {'f': 'pjson', 'objectIds': oids,'token':token}
result = dla.sendRequest(url,params)
try:
if result['error'] != None:
retval = False
dla.addMessage("Delete features from Feature Service failed")
dla.addMessage(json.dumps(result))
error = True
except:
try:
lenDeleted = len(result['deleteResults'])
msg = str(lenDeleted) + " features deleted, " + str(featuresProcessed + chunk) + "/" + str(numFeat)
print(msg)
dla.addMessage(msg)
retval = True
except:
retval = False
error = True
dla.showTraceback()
dla.addMessage("Delete features from Feature Service failed")
dla.addError(json.dumps(result))
featuresProcessed += chunk
except:
retval = False
error = True
dla.showTraceback()
dla.addMessage("Delete features from Feature Service failed")
pass
return retval
def exportDataset(xmlDoc, source, workspace, targetName, rowLimit,
datasetType):
result = True
xmlFields = xmlDoc.getElementsByTagName("Field")
dla.addMessage("Exporting Data from " + source)
whereClause = ""
if rowLimit != None:
whereClause = getObjectIdWhereClause(source, rowLimit)
if whereClause != '' and whereClause != ' ':
dla.addMessage("Where " + str(whereClause))
sourceName = dla.getDatasetName(source)
viewName = sourceName + "_View"
dla.addMessage(viewName)
targetRef = getSpatialReference(xmlDoc, "Target")
sourceRef = getSpatialReference(xmlDoc, "Source")
if datasetType == 'Table':
isTable = True
elif targetRef != '':
isTable = False
arcpy.env.workspace = workspace
if source.lower().endswith('.lyrx') and not dla.hasJoin(source):
view = dla.getLayerFromString(source)
elif isTable:
view = dla.makeTableView(dla.workspace, source, viewName, whereClause,
xmlFields)
elif not isTable:
view = dla.makeFeatureView(dla.workspace, source, viewName,
whereClause, xmlFields)
dla.addMessage("View Created")
srcCount = arcpy.GetCount_management(view).getOutput(0)
dla.addMessage(str(srcCount) + " source rows")
if str(srcCount) == '0':
result = False
dla.addError("Failed to extract " + sourceName + ", Nothing to export")
else:
arcpy.env.overwriteOutput = True
ds = workspace + os.sep + targetName
currentPreserveGlobalIDs = arcpy.env.preserveGlobalIds
if dla.processGlobalIds(
xmlDoc
): # both datasets have globalids in the correct workspace types
arcpy.env.preserveGlobalIds = True # try to preserve
dla.addMessage("Attempting to preserve GlobalIDs")
else:
arcpy.env.preserveGlobalIds = False # don't try to preserve
dla.addMessage("Unable to preserve GlobalIDs")
if isTable:
arcpy.TableToTable_conversion(in_rows=view,
out_path=workspace,
out_name=targetName)
else:
spRefMatch = dla.compareSpatialRef(xmlDoc)
currentRef = arcpy.env.outputCoordinateSystem # grab currrent env settings
currentTrans = arcpy.env.geographicTransformations
if not spRefMatch:
arcpy.env.outputCoordinateSystem = targetRef
transformations = arcpy.ListTransformations(
sourceRef, targetRef)
transformations = ";".join(
transformations
) # concat the values - format change for setting the values.
arcpy.env.geographicTransformations = transformations
arcpy.FeatureClassToFeatureClass_conversion(in_features=view,
out_path=workspace,
out_name=targetName)
if not spRefMatch: # set the spatial reference back
arcpy.env.outputCoordinateSystem = currentRef
arcpy.env.geographicTransformations = currentTrans
arcpy.env.preserveGlobalIds = currentPreserveGlobalIDs
removeDefaultValues(
ds
) # don't want to turn nulls into defaultValues in the intermediate data
# not needed if doing the transformations approach above...
# if isTable:
# if not createDataset('Table',workspace,targetName,None,xmlDoc,source,None):
# arcpy.AddError("Unable to create intermediate table, exiting: " + workspace + os.sep + targetName)
# return False
# elif not isTable:
# geomType = arcpy.Describe(source).shapeType
# if not createDataset('FeatureClass',workspace,targetName,geomType,xmlDoc,source,targetRef):
# arcpy.AddError("Unable to create intermediate feature class, exiting: " + workspace + os.sep + targetName)
# return False
# fieldMap = getFieldMap(view,ds)
# arcpy.Append_management(view,ds,schema_type="NO_TEST",field_mapping=fieldMap)
dla.addMessage(arcpy.GetMessages(2)) # only serious errors
count = arcpy.GetCount_management(ds).getOutput(0)
dla.addMessage(str(count) + " source rows exported to " + targetName)
if str(count) == '0':
result = False
dla.addError(
"Failed to load to " + targetName +
", it is likely that your data falls outside of the target Spatial Reference Extent or there is another basic issue"
)
dla.addError(
"To verify please use the Append and/or Copy Features tool to load some data to an intermediate dataset:"
)
dla.addError(ds)
dla.showTraceback()
return result
def setFieldValues(table,fields,names,ftypes,lengths):
# from source xml file match old values to new values to prepare for append to target geodatabase
success = False
row = None
try:
updateCursor = arcpy.da.UpdateCursor(table,names)
result = arcpy.GetCount_management(table)
numFeat = int(result.getOutput(0))
dla.addMessage(table + ", " + str(numFeat) + " features")
i = 0
arcpy.SetProgressor("Step","Calculating " + table + "...",0,numFeat,getProgressUpdate(numFeat))
for row in updateCursor:
success = True
if dla._errCount > dla.maxErrorCount:
#dla.addMessage("Exceeded max number of errors in dla.maxErrorCount: " + str(dla.maxErrorCount))
dla.addError("Exceeded max number of errors in dla.maxErrorCount: " + str(dla.maxErrorCount))
return False
if i > dla.maxrows:
#dla.addMessage("Exceeded max number of rows supported in dla.maxrows: " + str(dla.maxrows))
dla.addError("Exceeded max number of rows supported in dla.maxrows: " + str(dla.maxrows))
return True
i = i + 1
setProgressor(i,numFeat)
for field in fields:
method = "None"
sourceName = dla.getNodeValue(field,"SourceName")
targetName = dla.getNodeValue(field,"TargetName")
targetValue = getTargetValue(row,field,names,sourceName,targetName)
sourceValue = getSourceValue(row,names,sourceName,targetName)
method = dla.getNodeValue(field,"Method").replace(" ","")
fnum = names.index(targetName)
if method == "None" or (method == "Copy" and sourceName == dla._noneFieldName):
val = None
method = "None"
elif method == "Copy":
val = sourceValue
elif method == "DefaultValue":
val = dla.getNodeValue(field,"DefaultValue")
elif method == "SetValue":
val = dla.getNodeValue(field,"SetValue")
elif method == "ValueMap":
val = getValueMap(row,names,sourceValue,field)
elif method == "ChangeCase":
case = dla.getNodeValue(field,method)
expression = getChangeCase(sourceValue,case)
val = getExpression(row,names,expression)
elif method == "Concatenate":
val = getConcatenate(row,names,field)
elif method == "Left":
chars = dla.getNodeValue(field,"Left")
val = getSubstring(sourceValue,"0",chars)
elif method == "Right":
chars = dla.getNodeValue(field,"Right")
val = getSubstring(sourceValue,len(str(sourceValue))-int(chars),len(str(sourceValue)))
elif method == "Substring":
start = int(dla.getNodeValue(field,"Start"))
lngth = int(dla.getNodeValue(field,"Length"))
if sourceValue != None:
lngth = start + lngth
val = getSubstring(sourceValue,start,lngth)
elif method == "Split":
splitter = dla.getNodeValue(field,"SplitAt")
splitter = splitter.replace("(space)"," ")
part = dla.getNodeValue(field,"Part")
val = getSplit(sourceValue,splitter,part)
elif method == "ConditionalValue":
sname = dla.getNodeValue(field,"SourceName")
oper = dla.getNodeValue(field,"Oper")
iif = dla.getNodeValue(field,"If")
if iif != " " and type(iif) == 'str':
for name in names:
if name in iif:
iif = iif.replace(name,"|"+name+"|")
tthen = dla.getNodeValue(field,"Then")
eelse = dla.getNodeValue(field,"Else")
for name in names:
if name in eelse:
eelse = eelse.replace(name,"|"+name+"|")
expression = "|" + tthen + "| " + " if |" + sname + "| " + oper + " |" + iif + "| else " + eelse
val = getExpression(row,names,expression)
elif method == "Expression":
expression = dla.getNodeValue(field,method)
for name in names:
expression = expression.replace(name,"|" + name + "|")
val = getExpression(row,names,expression)
# set field value
if method != "None" and val != None:
newVal = getValue(names,ftypes,lengths,targetName,targetValue,val)
row[fnum] = newVal
else:
row[fnum] = val
try:
updateCursor.updateRow(row)
except:
dla._errCount += 1
success = False
err = "Exception caught: unable to update row"
printRow(row,names)
dla.showTraceback()
dla.addError(err)
except:
dla._errCount += 1
success = False
err = "Exception caught: unable to update dataset"
if row != None:
printRow(row,names)
dla.showTraceback()
dla.addError(err)
finally:
del updateCursor
dla.cleanupGarbage()
arcpy.ResetProgressor()
return success
def exportDataset(xmlDoc,sourceLayer,workspace,targetName,rowLimit):
result = True
xmlFields = xmlDoc.getElementsByTagName("Field")
dla.addMessage("Exporting Layer from " + sourceLayer)
whereClause = ""
if rowLimit != None:
try:
whereClause = getObjectIdWhereClause(sourceLayer,rowLimit)
except:
dla.addMessage("Unable to obtain where clause to Preview " + sourceLayer + ", continuing with all records")
if whereClause != '' and whereClause != ' ':
dla.addMessage("Where " + str(whereClause))
sourceName = dla.getSourceName(xmlDoc)
viewName = sourceName + "_View"
dla.addMessage(viewName)
targetRef = getSpatialReference(xmlDoc,"Target")
#sourceRef = getSpatialReference(xmlDoc,"Source")
if targetRef != '':
arcpy.env.workspace = workspace
view = dla.makeFeatureView(dla.workspace,sourceLayer,viewName,whereClause,xmlFields)
dla.addMessage("View Created")
count = arcpy.GetCount_management(view).getOutput(0)
dla.addMessage(str(count) + " source rows")
arcpy.env.overwriteOutput = True
arcpy.CreateFeatureclass_management(workspace,targetName,template=sourceLayer,spatial_reference=targetRef)
fc = workspace + os.sep + targetName
arcpy.Append_management(view,fc,schema_type="NO_TEST")
dla.addMessage(arcpy.GetMessages(2)) # only serious errors
count = arcpy.GetCount_management(fc).getOutput(0)
dla.addMessage(str(count) + " source rows exported to " + targetName)
if str(count) == '0':
result = False
dla.addError("Failed to load to " + targetName + ", it is likely that your data falls outside of the target Spatial Reference Extent")
dla.addMessage("To verify please use the Append tool to load some data to the target dataset")
return result
def exportDataset(xmlDoc, sourceLayer, workspace, targetName, rowLimit):
result = True
xmlFields = xmlDoc.getElementsByTagName("Field")
dla.addMessage("Exporting Layer from " + sourceLayer)
whereClause = ""
if rowLimit != None:
# try:
whereClause = getObjectIdWhereClause(sourceLayer, rowLimit)
# except:
# dla.addMessage("Unable to obtain where clause to Preview " + sourceLayer + ", continuing with all records")
if whereClause != "" and whereClause != " ":
# dla.addMessage("rowLimit " + str(rowLimit))
dla.addMessage("Where " + str(whereClause))
sourceName = dla.getSourceName(xmlDoc)
viewName = sourceName + "_View"
dla.addMessage(viewName)
targetRef = getSpatialReference(xmlDoc, "Target")
# sourceRef = getSpatialReference(xmlDoc,"Source")
if targetRef != "":
arcpy.env.workspace = workspace
view = dla.makeFeatureView(dla.workspace, sourceLayer, viewName, whereClause, xmlFields)
dla.addMessage("View Created")
srcCount = arcpy.GetCount_management(view).getOutput(0)
dla.addMessage(str(srcCount) + " source rows")
if srcCount == 0:
result = False
dla.addError("Failed to extract " + sourceName + ", Nothing to export")
else:
arcpy.env.preserveGlobalIds = False # need to run this way until support added for GlobalIDs
# dla.addMessage("names: " + sourceName + "|" + targetName)
arcpy.env.overwriteOutput = True
try:
arcpy.CreateFeatureclass_management(
workspace, targetName, template=sourceLayer, spatial_reference=targetRef
)
except:
arcpy.AddError(
"Unable to create intermediate feature class, exiting: " + workspace + os.sep + targetName
)
return False
fc = workspace + os.sep + targetName
arcpy.Append_management(view, fc, schema_type="NO_TEST")
dla.addMessage(arcpy.GetMessages(2)) # only serious errors
count = arcpy.GetCount_management(fc).getOutput(0)
dla.addMessage(str(count) + " source rows exported to " + targetName)
if str(count) == "0":
result = False
dla.addError(
"Failed to load to "
+ targetName
+ ", it is likely that your data falls outside of the target Spatial Reference Extent"
)
dla.addMessage("To verify please use the Append tool to load some data to the target dataset")
return result
def calculate(xmlFileName,workspace,name,ignore):
dla.workspace = workspace
success = True
arcpy.ClearWorkspaceCache_management(dla.workspace)
xmlDoc = dla.getXmlDoc(xmlFileName)
dla.addMessage("Field Calculator: " + xmlFileName)
arcpy.env.Workspace = dla.workspace
table = dla.getTempTable(name)
if not arcpy.Exists(table):
dla.addError("Feature Class " + table + " does not exist, exiting")
arcpy.SetParameter(SUCCESS, False)
return
if not arcpy.TestSchemaLock(table):
dla.addError("Unable to obtain a schema lock for " + table + ", exiting")
arcpy.SetParameter(SUCCESS, False)
return -1
desc = arcpy.Describe(table)
fields = dla.getXmlElements(xmlFileName,"Field")
sourceFields = dla.getXmlElements(xmlFileName,"SourceField")
targetFields = dla.getXmlElements(xmlFileName,"TargetField")
attrs = [f.name for f in arcpy.ListFields(table)]
for field in fields:
arcpy.env.Workspace = dla.workspace
targetName = dla.getNodeValue(field,"TargetName")
sourceName = dla.getNodeValue(field,"SourceName")
ftype = "String"
length = "50"
for target in targetFields:
nm = target.getAttributeNode("Name").nodeValue
if nm == targetName:
ftype = target.getAttributeNode("Type").nodeValue
length = target.getAttributeNode("Length").nodeValue
# uppercase compare, later need to check for orig/upper name for calc
#ups = [nm.upper() for nm in attrs]
dla.addDlaField(table,targetName,field,attrs,ftype,length)
allFields = sourceFields + targetFields
desc = arcpy.Describe(table)
layerNames = []
names = []
ftypes = []
lengths = []
ignore = ['FID','OBJECTID','GLOBALID','SHAPE','SHAPE_AREA','SHAPE_LENGTH','SHAPE_LEN','STLENGTH()','STAREA()','raster']
for name in ['OIDFieldName','ShapeFieldName','LengthFieldName','AreaFieldName','GlobalIDFieldName','RasterFieldName']:
try:
val = eval("desc." + name)
val = val[val.rfind('.')+1:]
ignore.append(val).upper()
except:
pass
for field in desc.fields:
if field.name.upper() not in ignore:
layerNames.append(field.name.upper())
for field in allFields:
nm = field.getAttributeNode("Name").nodeValue
if nm != dla.noneName and nm.upper() not in ignore and nm.upper() in layerNames:
try:
names.index(nm)
except:
names.append(nm)
typ = field.getAttributeNode("Type").nodeValue
leng = field.getAttributeNode("Length").nodeValue
ftypes.append(typ)
lengths.append(leng)
retVal = setFieldValues(table,fields,names,ftypes,lengths)
if retVal == False:
success = False
arcpy.ClearWorkspaceCache_management(dla.workspace)
dla.cleanupGarbage()
arcpy.ResetProgressor()
if ignore == True:
success = True
return success
def addFeatures(sourceLayer, targelUrl, expr):
# add features using _chunkSize
retval = False
error = False
# add section
try:
arcpy.SetProgressor("default", "Adding Features")
arcpy.SetProgressorLabel("Adding Features")
featurejs = featureclass_to_json(sourceLayer)
url = targelUrl + '/addFeatures'
numFeat = len(featurejs['features'])
if numFeat == 0:
dla.addMessage("0 Features to Add, exiting")
return True # nothing to add is OK
if numFeat > _chunkSize:
chunk = _chunkSize
else:
chunk = numFeat
featuresProcessed = 0
while featuresProcessed < numFeat and error == False:
next = featuresProcessed + chunk
features = featurejs['features'][featuresProcessed:next]
msg = "Adding features " + str(featuresProcessed) + ":" + str(next)
dla.addMessage(msg)
arcpy.SetProgressorLabel(msg)
token = dla.getSigninToken()
params = {
'rollbackonfailure': 'true',
'f': 'json',
'token': token,
'features': json.dumps(features)
}
result = dla.sendRequest(url, params)
try:
if result['error'] != None:
retval = False
dla.addMessage("Add features to Feature Service failed")
dla.addMessage(json.dumps(result))
error = True
except:
try:
lenAdded = len(result['addResults'])
msg = str(lenAdded) + " features added, " + str(
featuresProcessed + chunk) + "/" + str(numFeat)
print(msg)
dla.addMessage(msg)
retval = True
except:
retval = False
dla.addMessage("Add features to Feature Service failed")
dla.showTraceback()
dla.addError(json.dumps(result))
error = True
featuresProcessed += chunk
except:
retval = False
dla.addMessage("Add features to Feature Service failed")
dla.showTraceback()
error = True
pass
return retval
def exportDataset(xmlDoc,sourceLayer,workspace,targetName,rowLimit):
result = True
xmlFields = xmlDoc.getElementsByTagName("Field")
dla.addMessage("Exporting Layer from " + sourceLayer)
whereClause = ""
if rowLimit != None:
try:
whereClause = getObjectIdWhereClause(sourceLayer,rowLimit)
except:
dla.addMessage("Unable to obtain where clause to Preview " + sourceLayer + ", continuing with all records")
if whereClause != '' and whereClause != ' ':
dla.addMessage("Where " + str(whereClause))
sourceName = dla.getSourceName(xmlDoc)
viewName = sourceName + "_View"
dla.addMessage(viewName)
targetRef = getSpatialReference(xmlDoc,"Target")
#sourceRef = getSpatialReference(xmlDoc,"Source")
if targetRef != '':
arcpy.env.workspace = workspace
view = dla.makeFeatureView(dla.workspace,sourceLayer,viewName,whereClause,xmlFields)
dla.addMessage("View Created")
count = arcpy.GetCount_management(view).getOutput(0)
dla.addMessage(str(count) + " source rows")
arcpy.env.overwriteOutput = True
arcpy.CreateFeatureclass_management(workspace,targetName,template=sourceLayer,spatial_reference=targetRef)
fc = workspace + os.sep + targetName
arcpy.Append_management(view,fc,schema_type="NO_TEST")
dla.addMessage(arcpy.GetMessages(2)) # only serious errors
count = arcpy.GetCount_management(fc).getOutput(0)
dla.addMessage(str(count) + " source rows exported to " + targetName)
if str(count) == '0':
result = False
dla.addError("Failed to load to " + targetName + ", it is likely that your data falls outside of the target Spatial Reference Extent")
dla.addMessage("To verify please use the Append tool to load some data to the target dataset")
return result
def writeDocument(sourceDataset, targetDataset, xmlFileName):
desc = arcpy.Describe(sourceDataset)
descT = arcpy.Describe(targetDataset)
sourcePath = getLayerPath(desc)
targetPath = getLayerPath(descT)
## Added May2016. warn user if capabilities are not correct, exit if not a valid layer
if not dla.checkServiceCapabilities(sourcePath, False):
dla.addMessage(
sourceDataset +
' Does not appear to be a feature service layer, exiting. Check that you selected a layer not a service'
)
return False
if not dla.checkServiceCapabilities(targetPath, False):
dla.addMessage(
targetDataset +
' Does not appear to be a feature service layer, exiting. Check that you selected a layer not a service'
)
return False
xmlDoc = Document()
root = xmlDoc.createElement('SourceTargetMatrix')
xmlDoc.appendChild(root)
root.setAttribute("version", '1.1')
root.setAttribute("xmlns:esri", 'http://www.esri.com')
dataset = xmlDoc.createElement("Datasets")
root.appendChild(dataset)
setSourceTarget(dataset, xmlDoc, "Source", sourcePath)
setSourceTarget(dataset, xmlDoc, "Target", targetPath)
setSpatialReference(dataset, xmlDoc, desc, "Source")
setSpatialReference(dataset, xmlDoc, descT, "Target")
setSourceTarget(dataset, xmlDoc, "ReplaceBy", "")
fieldroot = xmlDoc.createElement("Fields")
root.appendChild(fieldroot)
fields = getFields(descT, targetDataset)
sourceFields = getFields(desc, sourceDataset)
sourceNames = [
field.name[field.name.rfind(".") + 1:] for field in sourceFields
]
upperNames = [nm.upper() for nm in sourceNames]
#try:
for field in fields:
fNode = xmlDoc.createElement("Field")
fieldroot.appendChild(fNode)
fieldName = field.name[field.name.rfind(".") + 1:]
matchSourceFields(xmlDoc, fNode, field, fieldName, sourceNames,
upperNames)
# write the source field values
setSourceFields(root, xmlDoc, sourceFields)
setTargetFields(root, xmlDoc, fields)
# Should add a template section for value maps, maybe write domains...
# could try to preset field mapping and domain mapping...
# add some data to the document
writeDataSample(xmlDoc, root, sourceNames, sourceDataset, 10)
# write it out
xmlDoc.writexml(open(xmlFileName, 'w'),
indent=" ",
addindent=" ",
newl='\n')
xmlDoc.unlink()
def checkServiceCapabilities(pth, checklist):
res = False
if pth == None:
dla.addMessage('Error: No path available for layer')
return False
if checkLayerIsService(pth):
url = pth
if isFeatureLayerUrl(url):
data = arcpy.GetSigninToken()
token = data['token']
name = getServiceName(url)
if name != None:
# checklist is a list like: ['Create','Delete']
res = hasCapabilities(url, token, checklist)
if res != True:
dla.addMessage('WARNING: ' + name + ' does not have ' +
'+'.join(checklist) + ' privileges')
dla.addMessage('Verify the service properties for: ' + url)
dla.addMessage(
'This tool will not run until this is addressed')
return res
else:
dla.addMessage("Unable to retrieve Service name from the url")
return res
else:
dla.addMessage(
pth +
' Does not appear to be a feature service layer, exiting. Check that you selected a layer not a service'
)
return False
else:
return None # if it's not a service return None
def addRows(source, targetUrl, expr):
# add rows using _chunkSize
retval = False
error = False
# add section
try:
arcpy.SetProgressor("default", "Adding Rows")
arcpy.SetProgressorLabel("Adding Rows")
rowjs = rowsToJson(source)
url = targetUrl + '/addFeatures'
try:
numFeat = len(rowjs['features'])
except:
numFeat = 0
if numFeat == 0:
dla.addMessage("0 Rows to Add, exiting")
return True # nothing to add is OK
if numFeat > _chunkSize:
chunk = _chunkSize
else:
chunk = numFeat
rowsProcessed = 0
while rowsProcessed < numFeat and error == False:
next = rowsProcessed + chunk
rows = rowjs['features'][rowsProcessed:next]
msg = "Adding rows " + str(rowsProcessed) + ":" + str(next)
dla.addMessage(msg)
arcpy.SetProgressorLabel(msg)
token = getSigninToken()
params = {
'rollbackonfailure': 'true',
'f': 'json',
'token': token,
'features': json.dumps(rows)
}
result = sendRequest(url, params)
try:
if result['error'] != None:
retval = False
dla.addMessage("Add rows to Service failed")
dla.addMessage(json.dumps(result))
error = True
except:
try:
lenAdded = len(result['addResults'])
total = rowsProcessed + chunk
if total > numFeat:
total = numFeat
msg = str(lenAdded) + " rows added, " + str(
total) + "/" + str(numFeat)
print(msg)
dla.addMessage(msg)
retval = True
except:
retval = False
dla.addMessage(
"Add rows to Service failed. Unfortunately you will need to re-run this tool."
)
#dla.showTraceback()
#dla.addError(json.dumps(result))
error = True
rowsProcessed += chunk
except:
retval = False
dla.addMessage("Add rows to Service failed")
dla.showTraceback()
error = True
pass
return retval
def setProgressor(i,numFeat):
if i % 100 == 0:
dla.addMessage("Feature " + str(i) + " processed")
if i % getProgressUpdate(numFeat) == 0:
arcpy.SetProgressorPosition(i)
def setFieldValues(table, fields, names, types, lengths):
# from source xml file match old values to new values to prepare for append to target geodatabase
success = False
row = None
try:
updateCursor = arcpy.da.UpdateCursor(table, names)
result = arcpy.GetCount_management(table)
numFeat = int(result.getOutput(0))
dla.addMessage(table + ", " + str(numFeat) + " features")
i = 0
arcpy.SetProgressor("Step", "Calculating " + table + "...", 0, numFeat,
getProgressUpdate(numFeat))
for row in updateCursor:
success = True
if dla._errCount > dla.maxErrorCount:
#dla.addMessage("Exceeded max number of errors in dla.maxErrorCount: " + str(dla.maxErrorCount))
dla.addError(
"Exceeded max number of errors in dla.maxErrorCount: " +
str(dla.maxErrorCount))
return False
if i > dla.maxrows:
#dla.addMessage("Exceeded max number of rows supported in dla.maxrows: " + str(dla.maxrows))
dla.addError(
"Exceeded max number of rows supported in dla.maxrows: " +
str(dla.maxrows))
return True
i = i + 1
setProgressor(i, numFeat)
for field in fields:
method = "None"
sourceName = dla.getNodeValue(field, "SourceName")
targetName = dla.getNodeValue(field, "TargetName")
targetValue = getTargetValue(row, field, names, sourceName,
targetName)
sourceValue = getSourceValue(row, names, sourceName,
targetName)
method = dla.getNodeValue(field, "Method").replace(" ", "")
if method == "None" or (method == "Copy"
and sourceName == '(None)'):
method = "None"
val = None
elif method == "Copy":
val = sourceValue
elif method == "DefaultValue":
val = dla.getNodeValue(field, "DefaultValue")
elif method == "SetValue":
val = dla.getNodeValue(field, "SetValue")
elif method == "ValueMap":
val = getValueMap(row, names, sourceValue, field)
elif method == "ChangeCase":
case = dla.getNodeValue(field, method)
expression = getChangeCase(sourceValue, case)
val = getExpression(row, names, expression)
elif method == "Concatenate":
val = getConcatenate(row, names, field)
elif method == "Left":
chars = dla.getNodeValue(field, "Left")
val = getSubstring(sourceValue, "0", chars)
elif method == "Right":
chars = dla.getNodeValue(field, "Right")
val = getSubstring(sourceValue,
len(str(sourceValue)) - int(chars),
len(str(sourceValue)))
def calculate(xmlFileName, workspace, name, ignore):
dla.workspace = workspace
success = True
arcpy.ClearWorkspaceCache_management(dla.workspace)
xmlDoc = dla.getXmlDoc(xmlFileName)
dla.addMessage("Field Calculator: " + xmlFileName)
arcpy.env.Workspace = dla.workspace
table = dla.getTempTable(name)
if not arcpy.Exists(table):
dla.addError("Feature Class " + table + " does not exist, exiting")
arcpy.SetParameter(SUCCESS, False)
return
if not arcpy.TestSchemaLock(table):
dla.addError("Unable to obtain a schema lock for " + table +
", exiting")
arcpy.SetParameter(SUCCESS, False)
return -1
desc = arcpy.Describe(table)
fields = dla.getXmlElements(xmlFileName, "Field")
sourceFields = dla.getXmlElements(xmlFileName, "SourceField")
targetFields = dla.getXmlElements(xmlFileName, "TargetField")
attrs = [f.name for f in arcpy.ListFields(table)]
target_values = CaseInsensitiveDict()
#Fix read into dict, using NM as key
# at this point just getting the list of all target field names/types/lengths
for target in targetFields:
nm = target.getAttributeNode("Name").nodeValue
target_values[nm] = dict(
ftype=target.getAttributeNode("Type").nodeValue,
flength=target.getAttributeNode("Length").nodeValue)
for field in fields:
arcpy.env.Workspace = dla.workspace
targetName = dla.getNodeValue(field, "TargetName")
sourceName = dla.getNodeValue(field, "SourceName")
ftype = "String"
flength = "50"
if targetName in target_values:
ftype = target_values[targetName]['ftype']
flength = target_values[targetName]['flength']
# make sure the field exists in the field calculator dataset, this will include all source and target fields.
retcode = dla.addDlaField(table, targetName, field, attrs, ftype,
flength)
if retcode == False:
addError("Unable to add field " + targetName +
" to database to calculate values, exiting")
allFields = sourceFields + targetFields # this should be the same as the dataset fields at this point
desc = arcpy.Describe(table)
layerNames = []
names = []
ftypes = []
lengths = []
ignore = dla.getIgnoreFieldNames(
desc
) # gdb system fields that will be handled automatically and cannot be calculated
ignore = [nm.upper() for nm in ignore]
for field in desc.fields: # get the uppercase names for everything that exists in the dataset
if field.name.upper() not in ignore:
layerNames.append(field.name.upper())
for field in allFields: # loop through everything that might exist
nm = field.getAttributeNode("Name").nodeValue.replace(
'.', '_') # handle joins and remaining . in field names
if nm != dla._noneFieldName and nm.upper() not in ignore and nm.upper(
) in layerNames: # ignore the None and ignore fields and names not in the dataset
idx = dla.getFieldIndexList(names, nm)
if idx is None: # if the name is not already in the list
names.append(nm)
typ = field.getAttributeNode("Type").nodeValue
leng = field.getAttributeNode("Length").nodeValue
ftypes.append(typ)
lengths.append(leng)
#FIXME : Steve, was not sure why you were capturing an error here, and then doing something # from Steve - was looking for names that actually exist in the dataset and are not gdb system fields. No guarantee Xml matches dataset
#try:
#names.index(nm)
#except:
#names.append(nm)
#typ = field.getAttributeNode("Type").nodeValue
#leng = field.getAttributeNode("Length").nodeValue
#ftypes.append(typ)
#lengths.append(leng)
retVal = setFieldValues(table, fields, names, ftypes, lengths)
if retVal == False:
success = False
arcpy.ClearWorkspaceCache_management(dla.workspace)
dla.cleanupGarbage()
arcpy.ResetProgressor()
if ignore == True:
success = True
return success
def deleteFeatures(sourceLayer, targelUrl, expr):
# delete features using chunks of _chunkSize
retval = False
error = False
# delete section
ids = getOIDs(targelUrl, expr)
try:
lenDeleted = 100
#Chunk deletes using chunk size at a time
featuresProcessed = 0
numFeat = len(ids)
if numFeat == 0:
dla.addMessage("0 Features to Delete, exiting")
return True # nothing to delete is OK
if numFeat > _chunkSize:
chunk = _chunkSize
else:
chunk = numFeat
arcpy.SetProgressor("default", "Deleting Features")
while featuresProcessed < numFeat and error == False:
#Chunk deletes using chunk size at a time
next = featuresProcessed + chunk
msg = "Deleting features " + str(featuresProcessed) + ":" + str(
next)
dla.addMessage(msg)
arcpy.SetProgressorLabel(msg)
oids = ",".join(str(e) for e in ids[featuresProcessed:next])
url = targelUrl + '/deleteFeatures'
token = dla.getSigninToken()
params = {'f': 'pjson', 'objectIds': oids, 'token': token}
result = dla.sendRequest(url, params)
try:
if result['error'] != None:
retval = False
dla.addMessage(
"Delete features from Feature Service failed")
dla.addMessage(json.dumps(result))
error = True
except:
try:
lenDeleted = len(result['deleteResults'])
msg = str(lenDeleted) + " features deleted, " + str(
featuresProcessed + chunk) + "/" + str(numFeat)
print(msg)
dla.addMessage(msg)
retval = True
except:
retval = False
error = True
dla.showTraceback()
dla.addMessage(
"Delete features from Feature Service failed")
dla.addError(json.dumps(result))
featuresProcessed += chunk
except:
retval = False
error = True
dla.showTraceback()
dla.addMessage("Delete features from Feature Service failed")
pass
return retval
def setProgressor(i, numFeat):
if i % 100 == 0:
dla.addMessage("Feature " + str(i) + " processed")
if i % getProgressUpdate(numFeat) == 0:
arcpy.SetProgressorPosition(i)
def publish(xmlFileNames):
# function called from main or from another script, performs the data update processing
global sourceLayer, targetLayer, _success
dla._errorCount = 0
arcpy.SetProgressor("default", "Data Assistant")
arcpy.SetProgressorLabel("Data Assistant")
xmlFiles = xmlFileNames.split(";")
for xmlFile in xmlFiles: # multi value parameter, loop for each file
dla.addMessage("Configuration file: " + xmlFile)
xmlDoc = dla.getXmlDoc(xmlFile) # parse the xml document
if xmlDoc == None:
return
svceS = False
svceT = False
if sourceLayer == "" or sourceLayer == None:
sourceLayer = dla.getNodeValue(xmlDoc, "Source")
svceS = dla.checkLayerIsService(sourceLayer)
if targetLayer == "" or targetLayer == None:
targetLayer = dla.getNodeValue(xmlDoc, "Target")
svceT = dla.checkLayerIsService(targetLayer)
dla.addMessage(targetLayer)
## Added May2016. warn user if capabilities are not correct, exit if not a valid layer
if not dla.checkServiceCapabilities(sourceLayer, True):
return False
if not dla.checkServiceCapabilities(targetLayer, True):
return False
if svceS == True or svceT == True:
token = dla.getSigninToken(
) # when signed in get the token and use this. Will be requested many times during the publish
if token == None:
dla.addError(
"User must be signed in for this tool to work with services"
)
return
expr = getWhereClause(xmlDoc)
if useReplaceSettings == True and (expr == '' or expr == None):
dla.addError(
"There must be an expression for replacing by field value, current value = "
+ str(expr))
return False
dla.setWorkspace()
targetName = dla.getTargetName(xmlDoc)
res = dlaExtractLayerToGDB.extract(xmlFile, None, dla.workspace,
sourceLayer, targetName)
if res != True:
table = dla.getTempTable(targetName)
msg = "Unable to export data, there is a lock on existing datasets or another unknown error"
if arcpy.TestSchemaLock(table) != True:
msg = "Unable to export data, there is a lock on the intermediate feature class: " + table
dla.addError(msg)
print(msg)
return
else:
res = dlaFieldCalculator.calculate(xmlFile, dla.workspace,
targetName, False)
if res == True:
dlaTable = dla.getTempTable(targetName)
res = doPublish(xmlDoc, dlaTable, targetLayer)
arcpy.ResetProgressor()
sourceLayer = None # set source and target back to None for multiple file processing
targetLayer = None
if res == False:
err = "Data Assistant Update Failed, see messages for details"
dla.addError(err)
print(err)
def stage(xmlFileNames):
global source, target, rowLimit
dla.setWorkspace()
dla._errCount = 0
outlayers = []
for xmlFileName in xmlFileNames.split(';'):
xmlFileName = dla.getXmlDocName(xmlFileName)
xmlDoc = dla.getXmlDoc(xmlFileName)
prj = dla.setProject(xmlFileName, dla.getNodeValue(xmlDoc, "Project"))
if prj == None:
dla.addError(
"Unable to open your project, please ensure it is in the same folder as your current project or your Config file"
)
if rowLimit == "" or rowLimit == None:
rowLimit = None
if source == "" or source == None:
source = dla.getDatasetPath(xmlDoc, "Source")
if target == "" or target == None:
target = dla.getDatasetPath(xmlDoc, "Target")
if dla.isTable(source) or dla.isTable(target):
datasetType = 'Table'
else:
datasetType = 'FeatureClass'
targetName = dla.getStagingName(source, target)
targetDS = os.path.join(dla.workspace, targetName)
res = dlaExtractLayerToGDB.extract(xmlFileName, rowLimit,
dla.workspace, source, targetDS,
datasetType)
if res == True:
res = dlaFieldCalculator.calculate(xmlFileName, dla.workspace,
targetName, False)
if res == True:
arcpy.env.addOutputsToMap = True
layer = targetName
layertmp = targetName + "tmp"
if arcpy.Exists(layertmp):
arcpy.Delete_management(layertmp)
if dla.isTable(targetDS):
arcpy.MakeTableView_management(targetDS, layertmp)
else:
arcpy.MakeFeatureLayer_management(targetDS, layertmp)
fieldInfo = dla.getLayerVisibility(layertmp, xmlFileName)
if dla.isTable(targetDS):
arcpy.MakeTableView_management(targetDS, layer, None,
dla.workspace, fieldInfo)
else:
arcpy.MakeFeatureLayer_management(targetDS, layer, None,
dla.workspace, fieldInfo)
# should make only the target fields visible
outlayers.append(layer)
### *** need to insert tag in xml file...
dla.insertStagingElement(xmlDoc)
try:
xmlDoc.writexml(open(xmlFileName, 'wt', encoding='utf-8'))
dla.addMessage('Staging element written to config file')
except:
dla.addMessage("Unable to write data to xml file")
xmlDoc.unlink()
else:
dla.addError("Failed to Extract data")
print("Failed to Extract data")
if outlayers != []:
arcpy.SetParameter(_derived, ";".join(outlayers))
dla.writeFinalMessage("Data Assistant - Stage")
