[jira] [Created] (AVRO-1635) C++ schema aware encoders throw tr1::bad_weak_ptr exception for recursive schema

["Heye Vöcking (JIRA)" <ji...@apache.org>]

Heye Vöcking created AVRO-1635:
----------------------------------

             Summary: C++ schema aware encoders throw tr1::bad_weak_ptr exception for recursive schema
                 Key: AVRO-1635
                 URL: https://issues.apache.org/jira/browse/AVRO-1635
             Project: Avro
          Issue Type: Bug
          Components: c++
    Affects Versions: 1.7.7
         Environment: Ubuntu 12.04, gcc 4.6.4

            Reporter: Heye Vöcking


Encoding an object with a recursive schema fails when using a jsonEncoder or a validatingEncoder. Here is an example:

Output:
{noformat}
terminate called after throwing an instance of 'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::bad_weak_ptr> >'
  what():  tr1::bad_weak_ptr
{noformat}

{code:title=container.json|borderStyle=solid}
{
  "name": "Container",
  "doc": "Container to demonstrate the weak_ptr exception.",
  "type": "record",
  "fields": [{
    "name": "field",
    "type": {
      "name": "Object",
      "type": "record",
      "fields": [{
        "name": "value",
        "type": [
          "string",
          {"type": "map", "values": "Object"}
        ]
      }]
    }
  }]
}
{code}

{code:title=example.cc|borderStyle=solid}
#include <fstream>

#include <avro/Compiler.hh>
#include <avro/Encoder.hh>
#include <avro/Stream.hh>
#include <avro/ValidSchema.hh>

#include "container.hh"

int
main()
{
    std::ifstream ifs("container.json");
    avro::ValidSchema schema;
    avro::compileJsonSchema(ifs, schema);

    std::auto_ptr<avro::OutputStream> out = avro::memoryOutputStream();

    // Either one fails, here we use the jsonEncoder
    // avro::EncoderPtr encoder = avro::jsonEncoder(schema);
    avro::EncoderPtr encoder = avro::validatingEncoder(schema, avro::binaryEncoder());

    encoder->init(*out);

    Container container;
    std::map<std::string, Object > object;

    // Note that it doesn't fail if we don't insert a value into the map
    // object["a"].value.set_string("x");

    container.field.value.set_map(object);
    avro::encode(*encoder, container);

    return 0;
}
{code}



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