Hi Scott,
Thanks for the response. I changed the avro file to [1]
1. Java works.
2. avrocppgen
avrogencpp -i ~/tmp/robject.avro -o foo
works.
3. C
avro_schema_t *person_schema = (avro_schema_t*)malloc(sizeof(avro_schema_t));
(avro_schema_from_json_literal(jsonstring, person_schema))
returns:
Error was Error parsing JSON: string or '}' expected near end of file
So is this a bug? or am i calling it wrong.
Ideally, i would like a union of
["NULL","RAW","INTEGER","REAL","COMPLEX","LOGICAL","STRING","LIST"]}}
Each of these is a record of a 1) a type (might be array of integers, though
COMPLEX is array of records)
and (2) another field called Attributes.
e.g
[
{"type":"record",
"name":"REAL",
"fields":[
{"name":"whattype", "type":"myrtype"},
{"name":"value", "type":"array" , "items":"double"},
{"name":"attrs" , "type":"attrytpe"}
]
},
{"type":"record",
"name":"INTEGER",
"fields":[
{"name":"whattype", "type":"myrtype"},
{"name":"value", "type":"array" , "items":"integers"},
{"name":"attrs" , "type":"attrytpe"}
]
}
,...
]
Here 'attrytpe' is a Map type defined elsewhere and "myrtype" is an enum
defined elsewhere.
Similarly for a complex one in the union, it's 'values' field will be an array
of "complex type" defined elsewhere?
Woud i need multiple avro files using the same namespace?
or this the serialized the equivalent of what i have before [1]?
Thanks for your time
Saptarshi
[1]
{
"namespace": "robjects.avro",
"type": "record",
"name": "robject",
"doc" : "Encoding of some of the R data types",
"fields": [
{"name":"typeof" ,"type":{"type":"enum", "name":"thetype"
,"symbols":
["NULL","RAW","INTEGER","REAL","COMPLEX","LOGICAL","STRING","LIST","ATTRIBUTES"]}},
{"name":"NAtype" ,"type":{"type":"enum" , "name":"NA"
,"symbols":["NA"]}},
{"name":"complextype","type":{"type":"record" , "name":"complex",
"fields":[
{"name":"re", "type":"double"},
{"name":"im", "type":"double"}
]}},
{"name":"NULL" ,"type":"null"},
{"name":"RAW" ,"type":["null",{"type":"array"
,"items":"bytes"}]},
{"name":"INTEGER" ,"type":["null",{"type":"array" ,"items":"int"}]},
{"name":"REAL" ,"type":["null",{"type":"array"
,"items":"double"}]},
{"name":"COMPLEX" ,"type":["null",{"type":"array"
,"items":"complex"}]},
{"name":"LOGICAL" ,"type":["null",{"type":"array"
,"items":["boolean","NA"]}]},
{"name":"STRING" ,"type":["null",{"type":"array"
,"items":["string","NA"]}]},
{"name":"LIST" ,"type":["null",{"type":"array"
,"items":["robject"]}]},
{"name":"ATTRIBUTES" ,"type":["null",{"type":"map"
,"values":"robject"}]}
]
}
----- Original Message -----
From: "Scott Carey" <[email protected]>
To: [email protected], "Saptarshi Guha" <[email protected]>
Sent: Monday, June 25, 2012 9:42:27 PM
Subject: Re: C/C++ parsing vs. Java parsing.
The schema provided is a union of several schemas. Java supports parsing
this, C++ may not. Does it work if you make it one single schema, and
nest "NA", "acomplex" and "retypes" inside of "object" ? It only needs to
be defined the first time it is referenced. If it does not, then it is
certainly a bug.
Either way I would file a bug in JIRA. The spec does not say whether a
file should be parseable if it contains a union rather than a record, but
it probably should be.
-Scott
On 6/24/12 11:17 PM, "Saptarshi Guha" <[email protected]> wrote:
>I have a avro scheme found here: http://sguha.pastebin.mozilla.org/1677671
>
>I tried
>
>java -jar avro-tools-1.7.0.jar compile schema ~/tmp/robject.avro foo
>
>and it worked.
>
>This failed:
>
>avrogencpp --input ~/tmp/robject.avro --output ~/tmp/h2
>Segmentation fault: 11
>
>
>This failed:
>
> avro_schema_t *person_schema =
>(avro_schema_t*)malloc(sizeof(avro_schema_t));
>(avro_schema_from_json_literal(string.of.avro.file), person_schema)
>
>with
>
>Error was Error parsing JSON: string or '}' expected near end of file
>
>Q1: Does C and C++ API support all schemas the Java one supports?
>Q2: Is it yes to Q1 and this is a bug?
>
>Regards
>Saptarshi
