def taskDispatch(taskID, threadID):
"""
task dispatcher
based on the request class the right request hadler is used
to process the asynchronous requets
"""
# status logger
pStatus = TaskStatus(taskID, dbLock)
try:
# get task parameters
requestType, requestID, requestHandler, inputs = dbLocker(
dbLock, startTask, taskID)
info("[%3.3i] PROCESS: %s %s is running ... " %
(threadID, requestType, requestID))
# create importer object
imp = Importer(requestHandler)
# try to load the right module and handler
imp.loadHandler()
# execute handler - proper status logging is duty of the callback
imp.handler(pStatus, inputs)
# try to unload the handler
imp.unloadHandler()
# if no terminating status has been set do it right now
dbLocker(dbLock, stopTaskSuccessIfNotFinished, taskID)
info("[%3.3i] PROCESS: %s %s is finished ... " %
(threadID, requestType, requestID))
except (KeyboardInterrupt, SystemExit):
raise
except Exception as e:
pStatus.setFailure(unicode(e))
# finish the task
error("[%3.3i] %s " % (threadID, unicode(e)))
def setUp(self):
super(WCSTransactionTestCase, self).setUp()
logger.debug("WCSTransactionTestCase for ID: %s" % self.ID)
if self.isAsync:
from eoxserver.resources.processes.tracker import (
dequeueTask, TaskStatus, startTask,
stopTaskSuccessIfNotFinished)
# get a pending task from the queue
taskId = dequeueTask(1)[0]
# create instance of TaskStatus class
pStatus = TaskStatus(taskId)
try:
# get task parameters and change status to STARTED
requestType, requestID, requestHandler, inputs = startTask(
taskId)
# load the handler
module, _, funct = requestHandler.rpartition(".")
handler = getattr(__import__(module, fromlist=[funct]), funct)
# execute handler
handler(pStatus, inputs)
# if no terminating status has been set do it right now
stopTaskSuccessIfNotFinished(taskId)
except Exception as e:
pStatus.setFailure(unicode(e))
# Add DescribeCoverage request/response
request = (
"service=WCS&version=2.0.0&request=DescribeCoverage&coverageid=%s"
% str(self.ID))
self.responseDescribeCoverage = self.client.get('/ows?%s' % request)
# Add GetCoverage request/response
request = (
"service=WCS&version=2.0.0&request=GetCoverage&format=image/tiff"
"&mediatype=multipart/mixed&coverageid=%s" % str(self.ID))
self.responseGetCoverage = self.client.get('/ows?%s' % request)
# Add delete coverage request/response
requestBegin = """<wcst:Transaction service="WCS" version="1.1"
xmlns:wcst="http://www.opengis.net/wcs/1.1/wcst"
xmlns:ows="http://www.opengis.net/ows/1.1"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.opengis.net/wcs/1.1/wcst http://schemas.opengis.net/wcst/1.1/wcstTransaction.xsd">
<wcst:InputCoverages>
<wcst:Coverage>
<ows:Identifier>"""
requestEnd = """</ows:Identifier>
<wcst:Action codeSpace=\"http://schemas.opengis.net/wcs/1.1.0/actions.xml\">
Delete
</wcst:Action>"
</wcst:Coverage>
</wcst:InputCoverages>
</wcst:Transaction>"""
request = requestBegin + self.ID + requestEnd
self.responseDeleteCoverage = self.client.post('/ows', request,
"text/xml")
# Add DescribeCoverage request/response after delete
request = (
"service=WCS&version=2.0.0&request=DescribeCoverage&coverageid=%s"
% str(self.ID))
self.responseDescribeCoverageDeleted = self.client.get('/ows?%s' %
request)
