Table Of Contents
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Needed Stories
Resources needs to handle GET & PUT of network sequence time (truth)
Resources needs to handle GET by DB Time and Network Sequence Time (truth)
Gizmo needs to be updated to handle a PUT of network sequence time (truth)
Spike needs to be updated to handle network sequence time(truth)
Synapse needs to be updated to handle get flow through of parameters to chameleon from network sequence time and db time
Chameleon needs to be updated to handle the network sequence time (truth)
Gallifrey to expose lifespan (possibly)
Chameleon/Gallifrey need to handle all deployment stories (dockerization/runbook/etc), and adhere to junit coverage
Historical Meta-properties
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If the timestamp was sent on a non-singular node call then we would return a message stating that this functionality is not supported.Need input from amdocs on how gizmo/synapse will proxy the new parameters to chameleon. Chameleon also needs to be updated to support network timestamp, and lifespan.
Gallifrey API Spec:
Type | URI | Query Params | Description | Champ Interaction |
GET | relationship/<ID> | t-k=Timestamp that specifies knowledge ie: when we received the assertion in Gallifrey nt-k=Timestamp that specifies a time assertion made by the client for when the change (update/add/delete) occurred in the network meta=[true/false] if true, payload retrieved will hold the metaproperties at t-k or nt-k | Retrieve a relationship by ID | Champ needs to handle accepting a relationship id and the timestamp to run a historical query on the graph db A subgraph strategy will be used in champ to filter on the relative timestamp provided. |
GET | relationship/<ID>/lifespan | None | Retrieve all the timestamps for create, update, delete operations against this relationship | Champ would be called to retrieve the lifespan on the relationship with meta=true and t-k=lifespan to retrieve all the metaproperties on the relationship |
GET | entity/<ID> | t-k=Timestamp that specifies knowledge ie: when we received the assertion in Gallifrey nt-k=Timestamp that specifies a time assertion made by the client for when the change (update/add/delete) occurred in the network meta=[true/false] if true, payload retrieved will hold the metaproperties at t-k | Retrieve an entity by ID | Champ needs to handle accepting an entity id and the timestamp to run a historical query on the graph db retrieving the asserted state. Default not sending back metaproperties, if metaproperties are needed a parameter would need to be sent to champ. A subgraph strategy will be used in champ to filter on the relative timestamp provided. |
GET | entity/<ID>/lifespan | None | Retrieve all the timestamps for create, update, delete operations against this entity | Champ would be called to retrieve the lifespan on the entity with meta=true and t-k=lifespan to retrieve all the metaproperties on the entity |
PUT | relationship/<ID> | actor=name of the system making the assertion changes-only=[true|false] if true, gallifrey will actually determine what has changed between the PUT payload and the most recent set of assertions for the relationship. If false, the entire PUT body will be considered as a new set of assertions whether something has changed or not. create=[true|false] if true, Gallifrey assumes that this is a create request, if false it assumes it is an update t-k=Timestamp that specifies knowledge ie: when we received the assertion in Gallifrey (why are we generating this here? if there is a maintenance issue our timings would be out of sync with when these took place in the real-time db) nt-k=Timestamp that specifies a time assertion made by the client for when the change (update/add/delete) occurred in the network | Asserts that a relationship is to be created or updated (depending on the query parameters that are passed in). This API appends new assertions against the specified relationship. | create = false (changes-only true (execute diff)/false(assume everything changed)) When an assertion is being made without a network timestamp gallifrey will call champ requesting the relationship with it's most current metaproperties. Gallifrey would then adjust the metaproperties (of the updated properties) and would send the payload back to champ with a new current state and an updated previous state's metaproperties. Champ would override it's current metaproperty (for the updated/deleted properties) with the old and current metaproperties sent from Gallifrey. For added properties, they would be added directly with the metaproperties sent from Gallifrey. When an assertion is being made with a network timestamp gallifrey will call champ requesting the relationship with all of its metaproperties. Gallifrey would then insert the new assertion where appropriate (and adjust neighboring metaproperties) and send the modified payload back to champ for a replace. create = true POST - this would be a new create and Gallifrey would pass the metaproperties on each of it's property values and on the relationship itself |
PUT | entity/<ID> | actor=name of the system making the assertion changes-only=[true|false] if true, gallifrey will actually determine what has changed between the PUT payload and the most recent set of assertions for the entity. If false, the entire PUT body will be considered as a new set of assertions whether something has changed or not. create=[true|false] if true, Gallifrey assumes that this is a create request, if false it assumes it is an update t-k=Timestamp that specifies knowledge ie: when we received the assertion in Gallifrey nt-k=Timestamp that specifies a time assertion made by the client for when the change (update/add/delete) occurred in the network | Asserts that an entity is to be created or updated (depending on the query parameters that are passed in). This API appends new assertions against the specified entity. | create = false (changes-only true (execute diff)/false(assume everything changed)) When an assertion is being made without a network timestamp gallifrey will call champ requesting the entity with it's most current metaproperties. Gallifrey would then adjust the metaproperties (of the updated properties) and would send the payload back to champ with a new current state and an updated previous state's metaproperties. Champ would override it's current metaproperty (for the updated/deleted properties) with the old and current metaproperties sent from Gallifrey. For added properties, they would be added directly with the metaproperties sent from Gallifrey. When an assertion is being made with a network timestamp gallifrey will call champ requesting the entity with all of its metaproperties. Gallifrey would then insert the new assertion where appropriate (and adjust neighboring metaproperties) and send the modified payload back to champ for a replace. create = true POST - this would be a new create and Gallifrey would pass the metaproperties on each of it's property values and on the entity itself |
DELETE | relationship/<ID> | actor=name of the system making the assertion t-k=Timestamp that specifies knowledge ie: when we received the assertion in Gallifrey nt-k=Timestamp that specifies a time assertion made by the client for when the change (update/add/delete) occurred in the network | Asserts that a relationship has been deleted. | Gallifrey would request the latest relationship from champ and would set all of it's properties dbEndTimes to t-k along with the dbEndTime on the relationship itself. |
DELETE | entity/<ID> | actor=name of the system making the assertion t-k=Timestamp that specifies knowledge ie: when we received the assertion in Gallifrey nt-k=Timestamp that specifies a time assertion made by the client for when the change (update/add/delete) occurred in the network | Asserts that an entity has been deleted. | Gallifrey would request the latest entity from champ and would set all of it's properties dbEndTimes to t-k along with the dbEndTime on the entity itself. |
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