{
  "namespace":  "org.apache.cassandra.avro",
  "protocol":   "Cassandra",

  "types": [
      {"name": "ColumnPath", "type": "record",
          "fields": [
            {"name": "column_family", "type": "string"},
            {"name": "super_column", "type": ["bytes", "null"]},
            {"name": "column", "type": ["bytes", "null"]}
        ]
      },
      {"name": "Column", "type": "record",
          "fields": [
            {"name": "name", "type": "bytes"},
            {"name": "value", "type": "bytes"},
            {"name": "timestamp", "type": "long"}
        ]
      },
      {"name": "SuperColumn", "type": "record",
          "fields": [
            {"name": "name", "type": "bytes"},
            {"name": "columns", "type": {"type": "array", "items": "Column"}}
        ]
      },
      {"name": "ColumnOrSuperColumn", "type": "record",
          "fields": [
            {"name": "column", "type": ["Column", "null"]},
            {"name": "super_column", "type": ["SuperColumn", "null"]}
        ]
      },
      {"name": "ConsistencyLevel", "type": "enum",
          "symbols": [
            "ZERO", "ONE", "QUORUM", "DCQUORUM", "DCQUORUMSYNC", "ALL"
          ]
      },
      {"name": "InvalidRequestException", "type": "error",
          "fields": [
            {"name": "why", "type": ["string", "null"]}
          ]
      },
      {"name": "NotFoundException", "type": "error",
          "fields": [
            {"name": "why", "type": ["string", "null"]}
          ]
      },
      {"name": "UnavailableException", "type": "error",
          "fields": [
            {"name": "why", "type": ["string", "null"]}
          ]
      },
      {"name": "TimedOutException", "type": "error",
          "fields": [
            {"name": "why", "type": ["string", "null"]}
          ]
      }
  ],

  "messages": {
    "get": {
        "request": [
            {"name": "keyspace", "type": "string"},
            {"name": "key", "type": "string"},
            {"name": "column_path", "type": "ColumnPath"},
            {"name": "consistency_level", "type": "ConsistencyLevel"}
        ],
        "response": "ColumnOrSuperColumn",
        "errors": ["InvalidRequestException", "NotFoundException",
            "UnavailableException", "TimedOutException"]
    },
    "insert": {
        "request": [
            {"name": "keyspace", "type": "string"},
            {"name": "key", "type": "string"},
            {"name": "column_path", "type": "ColumnPath"},
            {"name": "value", "type": "bytes"},
            {"name": "timestamp", "type": "long"},
            {"name": "consistency_level", "type": "ConsistencyLevel"}
        ],
        "response": "null",
        "errors": ["InvalidRequestException", "UnavailableException",
            "TimedOutException"]
    },
    "batch_insert": {
        "request": [
            {"name": "keyspace", "type": "string"},
            {"name": "key", "type": "string"},
            {"name": "cfmap", "type": {"type": "map", "values": {"type": "array", "items": "ColumnOrSuperColumn"}}},
            {"name": "consistency_level", "type": "ConsistencyLevel"}
        ],
        "response": "null",
        "errors": ["InvalidRequestException", "UnavailableException",
            "TimedOutException"]
    },
    "get_api_version": {
        "request": [],
        "response": "string"
    }
  }
}