def createOobMessage(self, domainValues):
"""Encode a list of objects into a self-contained message that can be used for
out-of-band communication.
"""
state = RequestState(self._service)
encodedValues = list()
for domainValue in domainValues:
if domainValue is None:
clientValue = None
else:
clientType = self._service.resolveClientType(
domainValue.__class__, BaseProxy, True)
clientValue = state.getResolver().resolveClientValue(
domainValue, clientType, set())
encodedValues.append(EntityCodex.encode(state, clientValue))
map_ = IdToEntityMap()
map_.update(state.beans)
operations = list()
self.createReturnOperations(operations, state, map_)
invocation = FACTORY.invocation().as_()
invocation.setParameters(encodedValues)
bean = FACTORY.request()
resp = bean.as_()
resp.setInvocations(list(invocation))
resp.setOperations(operations)
return AutoBeanCodex.encode(bean)
def visitReferenceProperty(self, propertyName, value, ctx):
# containsKey to distinguish null from unknown
if propertyName in self._flatValueMap:
elementType = ctx.getElementType() if isinstance(ctx, CollectionPropertyContext) else None
newValue = EntityCodex.decode(self._state, ctx.getType(),
elementType, self._flatValueMap[propertyName])
resolved = self._state.getResolver().resolveDomainValue(newValue, False)
self._procesor._service.setProperty(self._domain, propertyName,
self._procesor._service.resolveDomainClass(ctx.getType()), resolved)
return False
def decodeInvocationArguments(self, source, parameters, contextArgs,
genericArgs):
"""Handles instance invocations as the instance at the 0th parameter.
"""
if parameters is None:
# Can't return Collections.emptyList() because this must be mutable
return list()
assert len(parameters) == contextArgs.length
args = list()
for i in range(contextArgs.length):
type_ = contextArgs[i]
elementType = None
if Collection.isAssignableFrom(type_):
elementType = TypeUtils.ensureBaseType(TypeUtils.getSingleParameterization(Collection, genericArgs[i]))
split = parameters.get(i)
else:
split = parameters.get(i)
arg = EntityCodex.decode(source, type_, elementType, split)
arg = source.getResolver().resolveDomainValue(arg, not (EntityProxyId == contextArgs[i]))
args.add(arg)
return args
def createReturnOperations(self, operations, returnState, toProcess):
for id_, bean in toProcess.iteritems():
domainObject = bean.getTag(Constants.DOMAIN_OBJECT)
if id_.isEphemeral() and returnState.isEntityType(id_.getProxyClass()):
# See if the entity has been persisted in the meantime
returnState.getResolver().resolveClientValue(domainObject,
id_.getProxyClass(), set())
if (id_.isEphemeral() or id_.isSynthetic()) or (domainObject is None):
# If the object isn't persistent, there's no reason to send an update
writeOperation = None
elif not self._service.isLive(domainObject):
writeOperation = WriteOperation.DELETE
elif id_.wasEphemeral():
writeOperation = WriteOperation.PERSIST
else:
writeOperation = WriteOperation.UPDATE
version = None
if ((writeOperation == WriteOperation.PERSIST)
or (writeOperation == WriteOperation.UPDATE)):
# If we're sending an operation, the domain object must be persistent.
# This means that it must also have a non-null version.
domainVersion = self._service.getVersion(domainObject)
if domainVersion is None:
raise UnexpectedException('The persisted entity with id '
+ self._service.getId(domainObject)
+ ' has a null version', None)
version = returnState.flatten(domainVersion)
inResponse = bean.getTag(Constants.IN_RESPONSE) is not None
# Don't send any data back to the client for an update on an object that
# isn't part of the response payload when the client's version matches
# the domain version.
if WriteOperation.UPDATE == writeOperation and not inResponse:
previousVersion = bean.getTag(Constants.VERSION_PROPERTY_B64)
if (version is not None and previousVersion is not None
and version == fromBase64(previousVersion)):
continue
op = FACTORY.operation().as_()
# Send a client id if the id is ephemeral or was previously associated
# with a client id.
if id_.wasEphemeral():
op.setClientId(id_.getClientId())
op.setOperation(writeOperation)
# Only send properties for entities that are part of the return graph
if inResponse:
propertyMap = OrderedDict()
# Add all non-null properties to the serialized form
diff = AutoBeanUtils.getAllProperties(bean)
for d in diff.iteritems():
value = d[1]
if value is not None:
propertyMap[d[0]] = EntityCodex.encode(returnState, value)
op.setPropertyMap(propertyMap)
if not id_.isEphemeral() and not id_.isSynthetic():
# Send the server address only for persistent objects
op.setServerId(toBase64(id_.getServerId()))
if id_.isSynthetic():
op.setStrength(Strength.SYNTHETIC)
op.setSyntheticId(id_.getSyntheticId())
elif id_.isEphemeral():
op.setStrength(Strength.EPHEMERAL)
op.setTypeToken(self._service.resolveTypeToken(id_.getProxyClass()))
if version is not None:
op.setVersion(toBase64(version.getPayload()))
operations.add(op)
invocationResults.append(domainReturnValue)
successes.append(ok)
contextMethodIt = contextMethods
objects = invocationResults
for i, success in enumerate(successes):
assert len(contextMethodIt) > i
assert len(objects) > i
contextMethod = contextMethodIt[i]
returnValue = objects[i]
if success:
# Convert domain object to client object
requestReturnType = self._service.getRequestReturnType(contextMethod)
returnValue = state.getResolver().resolveClientValue(returnValue,
requestReturnType, allPropertyRefs[returnValue])
# Convert the client object to a string
results.append(EntityCodex.encode(returnState, returnValue))
else:
results.append(returnValue)
def processOperationMessages(self, state, req):
operations = req.getOperations()
if operations is None:
return
beans = state.getBeansForPayload(operations)
assert len(operations) == len(beans)
itOp = operations
for bean in beans:
operation = itOp.next()
