{
    "protocol" : "Cassandra",
    "namespace" : "org.apache.cassandra.avro",  "types" : [
        
        { "name" : "AccessLevel",               "type" : "enum",       "symbols" : [ "NONE", "READONLY", "READWRITE", "FALL" ]  },
        { "name" : "ColumnPath",                "type" : "record",    "fields" : [
            { "name" : "column_family",         "type" : "string"},
            { "name" : "super_column",          "type" : [ "bytes", "null" ]},
            { "name" : "column",                "type" : [ "bytes", "null" ] } ]},
        { "name" : "ColumnParent",              "type" : "record",	"fields" : [
            { "name" : "column_family",         "type" : "string"},
            { "name" : "super_column",          "type" : [ "bytes", "null" ] } ]},
        { "name" : "SliceRange",                "type" : "record",	"fields" : [
            { "name" : "start",                 "type" : "bytes"},
            { "name" : "finish",                "type" : "bytes"},
            { "name" : "reversed",              "type" : "boolean"},
            { "name" : "count",                 "type" : "int"},
            { "name" : "bitmasks",              "type" : [ { "type" : "array",        "items" : "bytes"},  "null" ]    } ]},
        { "name" : "SlicePredicate",            "type" : "record",	"fields" : [
            { "name" : "column_names",          "type" : [ { "type" : "array",        "items" : "bytes"},  "null" ]},
            { "name" : "slice_range",           "type" : [ "SliceRange", "null" ]    } ]},

        { "name": "StupidColumnMutation", "type": "record",
          "fields": [
              { "name" : "key",	                "type" : "bytes"  },
              { "name" : "name",                "type" : "bytes"  },
              { "name" : "value",               "type" : "bytes"  },
              { "name" : "timestamp",	        "type" : "long"   },
              { "name" : "ttl",                 "type" : "int"    }
          ]},
        
        { "name" : "Clock",                     "type" : "record",	"fields" : [
            { "name" : "timestamp",	"type" : "long"   } ]},
        { "name" : "Column",                    "type" : "record",	"fields" : [
            { "name" : "name",                  "type" : "bytes"},
            { "name" : "value",                 "type" : "bytes"},
            { "name" : "clock",                 "type" : "Clock"},
            { "name" : "ttl",                   "type" : "int"   } ]},
        { "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" },
            { "name" : "super_column",          "type" : "null"     } ]},
        { "name" : "Deletion",                  "type" : "record",	"fields" : [
            { "name" : "clock",                 "type" : "Clock"},
            { "name" : "super_column",          "type" : [ "bytes", "null" ]},
            { "name" : "predicate",             "type" : [ "SlicePredicate", "null" ]    } ]},
        { "name" : "Mutation",                  "type" : "record",	"fields" : [
            { "name" : "column_or_supercolumn", "type" : "ColumnOrSuperColumn" },
            { "name" : "deletion",              "type" : "null" }
        ]},
        { "name" : "StreamingMutation",         "type" : "record",	"fields" : [
            { "name" : "key",	                "type" : "bytes"       },
            { "name" : "mutation",	        "type" : "Mutation"    } ]},

        { "name" : "IndexType",                 "type" : "enum",	"symbols" : [ "KEYS" ]},
        { "name" : "ColumnDef",                 "type" : "record",	"fields" : [
            { "name" : "name",                  "type" : "bytes"},
            { "name" : "validation_class",      "type" : "string"},
            { "name" : "index_type",            "type" : [ "IndexType", "null" ]},
            { "name" : "index_name",            "type" : [ "string", "null" ]    } ]},
        { "name" : "CfDef",                     "type" : "record",	"fields" : [
            { "name" : "keyspace",              "type" : "string"},
            { "name" : "name",                  "type" : "string"},
            { "name" : "column_type",           "type" : [ "string", "null" ]},
            { "name" : "clock_type",            "type" : [ "string", "null" ]},
            { "name" : "comparator_type",       "type" : [ "string", "null" ]},
            { "name" : "subcomparator_type",    "type" : [ "string", "null" ]},
            { "name" : "reconciler",            "type" : [ "string", "null" ]},
            { "name" : "comment",               "type" : [ "string", "null" ]},
            { "name" : "row_cache_size",        "type" : [ "double", "null" ]},
            { "name" : "preload_row_cache",     "type" : [ "boolean", "null" ]},
            { "name" : "key_cache_size",        "type" : [ "double", "null" ]},
            { "name" : "read_repair_chance",    "type" : [ "double", "null" ]},
            { "name" : "gc_grace_seconds",      "type" : [ "int", "null" ]},
            { "name" : "column_metadata",       "type" : [ { "type" : "array",        "items" : "ColumnDef"},  "null" ]},
            { "name" : "id",                    "type" : [ "int", "null" ]    } ]},
        { "name" : "KsDef",                     "type" : "record",	"fields" : [
            { "name" : "name",                  "type" : "string"},  { "name" : "strategy_class",	"type" : "string"},
            { "name" : "strategy_options",      "type" : [ { "type" : "map",        "values" : "string"},  "null" ]},
            { "name" : "replication_factor",    "type" : "int"},  { "name" : "cf_defs",	"type" : { "type" : "array",        "items" : "CfDef"      }    } ]},
        { "name" : "MutationsMapEntry",         "type" : "record",	"fields" : [ { "name" : "key",	"type" : "bytes"},  { "name" : "mutations",	"type" : { "type" : "map",        "values" : { "type" : "array",          "items" : "Mutation"        }      }    } ]},
        { "name" : "CoscsMapEntry",             "type" : "record",	"fields" : [ { "name" : "key",	"type" : "bytes"},  { "name" : "columns",	"type" : { "type" : "array",        "items" : "ColumnOrSuperColumn"      }    } ]},
        { "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" : "key",	"type" : "bytes"},
  { "name" : "column_path",	"type" : "ColumnPath"},
  { "name" : "consistency_level",	"type" : "ConsistencyLevel"
      } ],
      "response" : "ColumnOrSuperColumn",
      "errors" : [ "InvalidRequestException", "NotFoundException", "UnavailableException", "TimedOutException" ]
    },
    "get_slice" : {
      "request" : [ { "name" : "key",	"type" : "bytes"},
  { "name" : "column_parent",	"type" : "ColumnParent"},
  { "name" : "predicate",	"type" : "SlicePredicate"},
  { "name" : "consistency_level",	"type" : "ConsistencyLevel"
      } ],
      "response" : { "type" : "array",
        "items" : "ColumnOrSuperColumn"
      },
      "errors" : [ "InvalidRequestException", "UnavailableException", "TimedOutException" ]
    },
    "multiget_slice" : {
      "request" : [ { "name" : "keys",	"type" : { "type" : "array",
          "items" : "bytes"
        }},
  { "name" : "column_parent",	"type" : "ColumnParent"},
  { "name" : "predicate",	"type" : "SlicePredicate"},
  { "name" : "consistency_level",	"type" : "ConsistencyLevel"
      } ],
      "response" : { "type" : "array",
        "items" : "CoscsMapEntry"
      },
      "errors" : [ "InvalidRequestException", "UnavailableException", "TimedOutException" ]
    },
    "get_count" : {
      "request" : [ { "name" : "key",	"type" : "bytes"},
  { "name" : "column_parent",	"type" : "ColumnParent"},
  { "name" : "predicate",	"type" : "SlicePredicate"},
  { "name" : "consistency_level",	"type" : "ConsistencyLevel"
      } ],
      "response" : "int",
      "errors" : [ "InvalidRequestException", "UnavailableException", "TimedOutException" ]
    },
    "insert" : {
      "request" : [ { "name" : "key",	"type" : "bytes"},
  { "name" : "column_parent",	"type" : "ColumnParent"},
  { "name" : "column",	"type" : "Column"},
  { "name" : "consistency_level",	"type" : "ConsistencyLevel"
      } ],
      "response" : "null",
      "errors" : [ "InvalidRequestException", "UnavailableException", "TimedOutException" ]
    },
    "remove" : {
      "request" : [ { "name" : "key",	"type" : "bytes"},
  { "name" : "column_path",	"type" : "ColumnPath"},
  { "name" : "clock",	"type" : "Clock"},
  { "name" : "consistency_level",	"type" : "ConsistencyLevel"
      } ],
      "response" : "null",
      "errors" : [ "InvalidRequestException", "UnavailableException", "TimedOutException" ]
    },
    "batch_mutate" : {
      "request" : [ { "name" : "mutation_map",	"type" : { "type" : "array",
          "items" : "MutationsMapEntry"
        }},
  { "name" : "consistency_level",	"type" : "ConsistencyLevel"
      } ],
      "response" : "null",
      "errors" : [ "InvalidRequestException", "UnavailableException", "TimedOutException" ]
    },
    "system_add_keyspace" : {
      "request" : [ { "name" : "ks_def",	"type" : "KsDef"
      } ],
      "response" : "null",
      "errors" : [ "InvalidRequestException" ]
    },
    "set_keyspace" : {
      "request" : [ { "name" : "keyspace",	"type" : "string"
      } ],
      "response" : "null",
      "errors" : [ "InvalidRequestException" ]
    },
    "describe_keyspaces" : {
      "request" : [ ],
      "response" : { "type" : "array",
        "items" : "string"
      }
    },
    "describe_cluster_name" : {
      "request" : [ ],
      "response" : "string"
    },
    "describe_version" : {
      "request" : [ ],
      "response" : "string"
    }
  }
}