def ts(self):
""" Search for the TileSetName in the Request and try and load it from Memcache or DataStore, return True or False """
if self._ts:
return self._ts
if self.tsid:
tsid = self.tsid
else:
tileSetName = self.request.REQUEST.get('ts')
if tileSetName:
self.tsid = tsid = 'ts:'+tileSetName
else:
return False
ts = memcache.get(tsid)
if ts is not None:
self._ts = ts
else:
ts = TileSet.get_by_key_name(tsid)
#if ts is not None and not memcache.add(tsid, ts):
# logging.error("Memcache set failed [ %s ]"%tsid)
self._ts = ts
#logging.info(self._ts)
if ts is not None:
return self._ts
else:
return False
def real_get(self):
s= "The following TileSets (shape files) have are available for use:<br>"
#logging.info('looking for tilesets')
for ts in TileSet.all():
#logging.info(ts)
if ts.public:
s+= "<p>Name: "
s+= "<a href='/m/?ts=%s'>%s</a>"%(ts.name,ts.name)
s+= "</p>"
self.response.out.write(s)
def real_get(self,tsid=''):
if tsid:
if tsid.startswith('ts:'):
self.tsid = tsid
else:
self.tsid = 'ts:'+tsid
ts = self.ts
if ts:
return self.write(ts.as_dict())
else:
return self.write({"error":"TileSet Not Found"})
else:
return self.write({'public':[ts for ts in TileSet.all(keys_only=True)]})
def get(self,tsid=''):
if tsid:
self.tsid = tsid
ts = self.ts
if ts:
if self.request.GET.get('type',None) == 'polys':
zoom = int(self.request.GET.get('z',0))
shpfile = Shapefile.get_by_key_name(self.ts.shpfile)
return self.write(shpfile.polygons(zoom),remove_white_space=True)
return self.write(ts.as_dict())
else:
return self.write({"error":"TileSet Not Found"})
else:
return self.write({'tilesets':TileSet.select('owner',self.request.user.username,keys_only=True)})
def ts(self):
""" Search for the TileSetName in the Request and try and load it from Memcache or DataStore, return TileSet or False """
if self._ts:
return self._ts
if self.tsid:
tsid = self.tsid
else:
tileSetName = self.request.REQUEST.get('ts')
if tileSetName:
self.tsid = tsid = tileSetName
else:
return False
ts = memcache.get(tsid.encode('utf8'))
if ts is None:
ts = TileSet.get_by_key_name(tsid)
if ts is not None and not memcache.set(tsid.encode('utf8'),ts):
logger.error("Memcache set failed [ %s ]"%tsid)
if ts is not None:
if ts.public or ts.owner == self.request.user.username:
self._ts = ts
return ts
return False
def post(self,tsid=''):
if self.request.user.is_authenticated():
user = self.request.user
logger.info("%s, is creating a new TileSet."%(user.username))
POST = self.request.POST
# SINGLE PART UPLOAD, CREATE NEW SHAPEFILE
if 'shp' in POST and 'shx' in POST:
shp = zlib.decompress(base64.b64decode(POST['shp']))
shx = zlib.decompress(base64.b64decode(POST['shx']))
#dbf = zlib.decompress(base64.b64decode(POST['dbf']))
shapeModel = new_shapefile(shp,shx)
ts = TileSet("%s:%s"%(user.username,shapeModel.key_name))
ts.owner = user.username
ts.public = True
ts.date = time.mktime(time.gmtime())
ts.numregions = shapeModel.n
ts.shpfile = shapeModel.key_name
return self.write({'TileSetID':ts.put()})
# MULTIPART UPLOAD: Initiate Upload
elif 'shpmd5' in POST and 'shx' in POST:
shpmd5 = POST['shpmd5'].upper()
if TileSet.get_by_key_name('%s:%s'%(user.username,shpmd5)):
return self.write({'TileSetID':'%s:%s'%(user.username,shpmd5)})
shapeModel = Shapefile.get_by_key_name(shpmd5)
if shapeModel:
ts = TileSet("%s:%s"%(user.username,shapeModel.key_name))
ts.owner = user.username
ts.public = True
ts.date = time.mktime(time.gmtime())
ts.numregions = shapeModel.n
ts.shpfile = shapeModel.key_name
return self.write({'TileSetID':ts.put()})
else: #need to upload data.
shx = zlib.decompress(base64.b64decode(POST['shx']))
uploadID = new_shapefile_from_parts(shpmd5,shx)
if uploadID:
return self.write({"uploadId":uploadID})
else:
return self.write({'error':"Could not initiate multipart upload. Uknown error."})
# MULTIPART UPLOAD: Upload Part
elif 'shpmd5' in POST and 'uploadId' in POST and 'partNum' in POST and 'shpPart' in POST:
shpPart = zlib.decompress(base64.b64decode(POST['shpPart']))
etag = upload_part_of_shapefile(POST['shpmd5'],POST['uploadId'],int(POST['partNum']),shpPart)
if etag:
return self.write({"etag":etag})
else:
return self.write({'error':"Could not upload part. Try Again."})
# MULTIPART UPLOAD: Complete Upload.
elif 'shpmd5' in POST and 'uploadId' in POST and 'partsList' in POST:
parts = {}
for i,etag in enumerate(POST['partsList'].split(',')):
parts[i+1] = etag
shapeModel = complete_multipart_upload(POST['shpmd5'],POST['uploadId'],parts)
ts = TileSet("%s:%s"%(user.username,shapeModel.key_name))
ts.owner = user.username
ts.public = True
ts.date = time.mktime(time.gmtime())
ts.numregions = shapeModel.n
ts.shpfile = shapeModel.key_name
return self.write({'TileSetID':ts.put()})
return self.write({'error':"Missing required arguments 'shp' and/or 'shx'."})
else:
return self.write({'error':"User not authenticated."})
return self.write({'error':"An unknown error occured."})
