No válido serializado valor de error cuando la lectura de un mapa de string json objetos de Cassandra 1.2 uso de DataStax 1.0.5 controlador java y Cassaforte

Question

Estoy usando cassaforte 1.3.0-beta9, Cassandra 1.2 (DataStax), y com.datastax.cassandra/cassandra-conductor-core 1.0.5 (desde el 2.0 no funciona con Cassandra 1.2).Tengo una tabla con el siguiente esquema:

  CREATE TABLE entities (
  id text,
  address_country text,
  address_county text,
  address_region text,
  address_street_two text,
  csv_uploads list<text>,
  documents list<text>,
  name text,
  notes list<text>,
  photos list<text>,
  project_id text,
  property_code text,
  property_data text,
  retrofit_completion_date text,
  metering_point_ids text,
  devices map<text,text>,
  user_id text,
  PRIMARY KEY (id)
)

Este es un ejemplo de lo que está almacenado en una fila:

7b237da126d39ccf98f80d78b6145a10828970f8 |
{'b9d88015c84312bf24cef0e7f1a0baf98dbc8d8d':
  '{"metadata":{"passivrole":"zone 1 temperature,zone 1 temperature"},
    "readings":
      [{"type":"temperature","resolution":"120","accuracy":"0.1","period":"INSTANT"},
       {"type":"interpolatedTemperatureAir","resolution":100,"accuracy":"0.1","period":"INSTANT"}],
   "description":"External air temperature sensor",
   "entity-id":"3e0730d4672538307056a30615aaaa333107d94e"}', 
'd2fe3dca47b760dd67759a56ee0ebbc2cb3395f4': 
  '{"metadata":{"passivrole":"zone 1 humidity"},
    "readings":[{"type":"blah","resolution":"120","accuracy":"0.1","period":"INSTANT"}],
  "description":" air humidity sensor",
  "entity-id":"3e0730d4672538307056a30615aaaa333107d94e"}'} |
alice

Cuando intento leer el devices columna me sale el siguiente error:

com.datastax.driver.core.exceptions.InvalidTypeException: Invalid serialized value for type map<text, text> (String didn't validate.)
    at com.datastax.driver.core.DataType.deserialize(DataType.java:503)

Puedo leer los dispositivos de columna sin problemas con cqlsh (que se muestra arriba).Los valores almacenados en el mapa son string objetos json.

Aquí está el ejemplo de flujo de trabajo:

(require '[clojurewerkz.cassaforte.client :as cassaclient]
         ' [clojurewerkz.cassaforte.query :as cassaquery]
         ' [clojurewerkz.cassaforte.cql :as cql])

;; SELECT on empty devices:
(binding [cassaclient/*default-session* session]
      (let [entity (cql/select :entities (cassaquery/where :id "3e0730d4672538307056a30615aaaa333107d94e"))]
        (prn "retrieved entity: " entity)))

;; Returns vector of results, no errors:
"retrieved entity: " [{:retrofit_completion_date nil, :notes nil, :property_code "3e49de0-12af-012e-4f3a-12313b0348f8", :devices nil, :name nil, :user_id "alice", :csv_uploads nil, :project_id "0b4f512fb7834a0878252ab144a525d424445ba2", :photos nil, :property_data nil, :metering_point_ids "[\"1\" \"2\"]", :address_street_two nil, :documents nil, :address_region nil, :address_country nil, :address_county nil, :id "3e0730d4672538307056a30615aaaa333107d94e"}]

;; UPDATE using cassaforte:
(binding [cassaclient/*default-session* session]
  (cql/update :entities {:devices  {"0edf9e09bce895caf0342ac6ae12511555930362" "{:metadata {\"passivrole\" \"zone 1 humidity\"}, :readings [{\"type\" \"tba\", \"resolution\" \"90\", \"accuracy\" \"0.2\", \"period\" \"INSTANT\"}], :description \"lalalala\", :entity-id \"3e0730d4672538307056a30615aaaa333107d94e\"}"}} (cassaquery/where :id "3e0730d4672538307056a30615aaaa333107d94e")))

;; update worked ok, cqlsh (select devices from entities where id = '3e0730d4672538307056a30615aaaa333107d94e';)
;; returns correct map: 
;; {'0edf9e09bce895caf0342ac6ae12511555930362': '{:metadata {"passivrole" "zone 1 humidity"}, :readings [{"type" "tba", "resolution" "90", "accuracy" "0.2", "period" "INSTANT"}], :description "lalalala", :entity-id "3e0730d4672538307056a30615aaaa333107d94e"}'}

;; SELECT using cassaforte
(binding [cassaclient/*default-session* session]
      (let [entity (cql/select :entities (cassaquery/where :id "3e0730d4672538307056a30615aaaa333107d94e"))]
        (prn "retrieved entity: " entity)))

;; Returns this error:
;; InvalidTypeException Invalid serialized value for type map<text, text> (String didn't validate.)  com.datastax.driver.core.DataType.deserialize (DataType.java:503)

He probado el mismo flujo de trabajo utilizando la cruda CQL y Cassaforte, y los resultados fueron exactamente los mismos:

(require '[clojurewerkz.cassaforte.client :as cassaclient])

;; SELECT on empty devices:
(cassaclient/execute session "SELECT * FROM entities WHERE id = '3e0730d4672538307056a30615aaaa333107d94e';")

;; Returns vector of results, no errors:
[{:retrofit_completion_date nil, :notes nil, :property_code "3e49de0-12af-012e-4f3a-12313b0348f8", :devices nil, :name nil, :user_id "alice", :csv_uploads nil, :project_id "0b4f512fb7834a0878252ab144a525d424445ba2", :photos nil, :property_data nil, :metering_point_ids "[\"1\" \"2\"]", :address_street_two nil, :documents nil, :address_region nil, :address_country nil, :address_county nil, :id "3e0730d4672538307056a30615aaaa333107d94e"}]

;; UPDATE using cassaforte:
(cassaclient/execute session "UPDATE entities SET devices = {'0edf9e09bce895caf0342ac6ae12511555930362' : '{:metadata {\"passivrole\" \"zone 1 humidity\"}, :readings [{\"type\" \"tba\", \"resolution\" \"90\", \"accuracy\" \"0.2\", \"period\" \"INSTANT\"}], :description \"lalalala\", :entity-id \"3e0730d4672538307056a30615aaaa333107d94e\"}'} WHERE id = '3e0730d4672538307056a30615aaaa333107d94e';")

;; update worked ok, cqlsh (select devices from entities where id = '3e0730d4672538307056a30615aaaa333107d94e';)
;; returns correct map: 
;; {'0edf9e09bce895caf0342ac6ae12511555930362': '{:metadata {"passivrole" "zone 1 humidity"}, :readings [{"type" "tba", "resolution" "90", "accuracy" "0.2", "period" "INSTANT"}], :description "lalalala", :entity-id "3e0730d4672538307056a30615aaaa333107d94e"}'}

;; SELECT using cassaforte
(cassaclient/execute session "SELECT * FROM entities WHERE id = '3e0730d4672538307056a30615aaaa333107d94e';")

;; Returns this error:
;; InvalidTypeException Invalid serialized value for type map<text, text> (String didn't validate.)  com.datastax.driver.core.DataType.deserialize (DataType.java:503)

Cualquier ayuda y/o sugerencias sobre cómo los objetos json debe ser almacenado en Cassandra colección de mapas será muy apreciada.

Answer 1

(Cassaforte Mantenedor de aquí)

No he visto esta pregunta hasta ahora,

Este era un problema con la versión 1.0.5 de DataStax conductor.Cassaforte actualmente es 2.0.0, asunto está cerrado el ingenio de cualquier versión anterior beta12.Más info aquí: https://github.com/clojurewerkz/cassaforte/issues/41

Usar la última versión de Cassaforte y trate de pegarlo a la versión de Java Controlador que viene con Cassaforte y que va a estar genial.