[jira] [Commented] (AVRO-1278) Avro-C: Error parsing schema with fixed field default value

[Carl Steinbach (JIRA)]

    [ 
https://issues.apache.org/jira/browse/AVRO-1278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13609304#comment-13609304
 ] 

Carl Steinbach commented on AVRO-1278:
--------------------------------------

I observed the following behavior using Avro version 1.7.4:

{code}
% avropipe ComplexTypes.avro
Error opening ComplexTypes.avro:
  Cannot parse file header: Error parsing JSON: \u0000 is not allowed near 
'"\u0000"'
{code}

However, I can dump the header and contents of the same file using the Java 
Avro library:

{code}
% avro getschema ComplexTypes.avro
{
  "type" : "record",
  "name" : "ComplexTypes",
  "namespace" : "avro_fdw",
  "fields" : [ {
    "name" : "mapField",
    "type" : {
      "type" : "map",
      "values" : "int"
    },
    "default" : {
    }
  }, {
    "name" : "arrayField",
    "type" : {
      "type" : "array",
      "items" : "int"
    },
    "default" : [ ]
  }, {
    "name" : "enumField",
    "type" : {
      "type" : "enum",
      "name" : "RGBEnum",
      "symbols" : [ "RED", "GREEN", "BLUE" ]
    },
    "default" : "RED"
  }, {
    "name" : "fixedField",
    "type" : {
      "type" : "fixed",
      "name" : "MD5Fixed",
      "size" : 16
    },
    "default" : "\u0000"
  }, {
    "name" : "unionField",
    "type" : [ "string", "int", "float" ],
    "default" : "DEFAULT VALUE"
  }, {
    "name" : "recordField",
    "type" : {
      "type" : "record",
      "name" : "SampleRecord",
      "fields" : [ {
        "name" : "stringField",
        "type" : "string",
        "default" : "DEFAULT VALUE"
      }, {
        "name" : "intField",
        "type" : "int",
        "default" : 0
      } ]
    },
    "default" : {
    }
  } ]
}

% avro tojson ComplexTypes.avro
{"mapField":{},"arrayField":[],"enumField":"RED",
"fixedField":"\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000",
"unionField":{"string":"DEFAULT VALUE"},"recordField":{"stringField":"DEFAULT 
VALUE","intField":0}}
{"mapField":{},"arrayField":[],"enumField":"RED",
"fixedField":"\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000",
"unionField":{"string":"DEFAULT VALUE"},"recordField":{"stringField":"DEFAULT 
VALUE","intField":0}}
{"mapField":{"b":2,"c":3,"a":1},"arrayField":[-2,-1,0,1,2],"enumField":"GREEN",
"fixedField":"è\fq^]Nˆ_h×£…;_Ês","unionField":{"int":1},
"recordField":{"stringField":"SAMPLE VALUE","intField":100}}
{code}

The error is thrown in json_loadb() which gets called from 
avro_schema_from_json_length().
                
> Avro-C: Error parsing schema with fixed field default value
> -----------------------------------------------------------
>
>                 Key: AVRO-1278
>                 URL: https://issues.apache.org/jira/browse/AVRO-1278
>             Project: Avro
>          Issue Type: Bug
>          Components: c
>    Affects Versions: 1.7.4
>            Reporter: Carl Steinbach
>


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