def locateChild(self, ctx, segments):
request = inevow.IRequest(ctx)
uwsactions.lowercaseProtocolArgs(request.args)
if not segments[-1]: # trailing slashes are forbidden here
if len(segments
) == 1: # root resource; don't redirect, it would be a loop
return self, ()
raise svcs.WebRedirect(
self.service.getURL("tap") + "/" + "/".join(segments[:-1]))
try:
self.gatherUploadFiles(request)
if (getTAPVersion() != utils.getfirst(request.args, "version",
getTAPVersion())):
return uwsactions.ErrorResource({
"msg":
"Version mismatch; this service only supports"
" TAP version %s." % getTAPVersion(),
"type":
"ValueError",
"hint":
""
}), ()
if segments:
if segments[0] == 'sync':
res = getSyncResource(ctx, self.service, segments[1:])
elif segments[0] == 'async':
res = asyncrender.getAsyncResource(ctx, tap.WORKER_SYSTEM,
"tap", self.service,
segments[1:])
elif segments[0] == 'availability':
res = vosi.VOSIAvailabilityRenderer(ctx, self.service)
elif segments[0] == 'capabilities':
res = vosi.VOSICapabilityRenderer(ctx, self.service)
elif segments[0] == 'tables':
res = vosi.VOSITablesetRenderer(ctx, self.service)
elif segments[0] == 'examples':
from gavo.web import examplesrender
res = examplesrender.Examples(ctx, self.service)
else:
raise svcs.UnknownURI("Bad TAP path %s" %
"/".join(segments))
return res, ()
except svcs.UnknownURI:
raise
except base.Error, ex:
# see flagError in protocols.uws for the reason for the next if
if not isinstance(ex, (base.ValidationError, uws.JobNotFound)):
base.ui.notifyError("TAP error")
return uwsactions.ErrorResource(ex), ()
def renderHTTP(self, ctx):
try:
return threads.deferToThread(self._doRender, ctx).addCallback(
self._formatResult, ctx).addErrback(self._formatError)
except base.Error, ex:
base.ui.notifyExceptionMutation(None)
return uwsactions.ErrorResource(ex)
def _deliverError(self, failure, request):
# let auth requests fall through
if isinstance(failure.value, svcs.Authenticate):
return failure
if not isinstance(failure.value, uws.JobNotFound):
base.ui.notifyFailure(failure)
request.setHeader("content-type", "text/xml")
return uwsactions.ErrorResource(failure.value)
def getSyncResource(ctx, service, segments):
if segments:
raise svcs.UnknownURI("No resources below sync")
request = common.getfirst(ctx, "request", base.Undefined)
if request == "doQuery":
return TAPQueryResource(service, ctx)
elif request == "getCapabilities":
return vosi.VOSICapabilityRenderer(ctx, service)
return uwsactions.ErrorResource({
"type":
"ParameterError",
"msg":
"Invalid REQUEST: '%s'" % request,
"hint":
"Only doQuery and getCapabilities supported here"
})
def _formatError(self, failure):
base.ui.notifyFailure(failure)
return uwsactions.ErrorResource(failure.value)