Remove Map/Empty/List Node from vert.x JsonObject serialized String

[Xin WANG]

Vert.x JsonObject Serialized String contains Map and empty filed

The structure of the Object I want to serialize is

```java

public class MongoDatasourceResponse { private Mongoresponse response; private List<JsonObject> data; private int size; private Error error; //get, set method... }

```

Vert.x JsonObject Serialized String contains "Map" and "empty" filed, But I do not want to have all these extra "map" and "empty" nodes. What I can I do to remove them?

```json
{ "code": -1, "data": [ { "map": { "n": 0, "writeErrors": { "list": [ { "map": { "index": 0, "code": 11000, "errmsg": "E11000 duplicate key error collection: test.users index: _id_ dup key: { : 5 }" }, "empty": false }, { "map": { "index": 1, "code": 11000, "errmsg": "E11000 duplicate key error collection: test.users index: _id_ dup key: { : 6 }" }, "empty": false }, { "map": { "index": 2, "code": 11000, "errmsg": "E11000 duplicate key error collection: test.users index: _id_ dup key: { : 3 }" }, "empty": false }, { "map": { "index": 3, "code": 11000, "errmsg": "E11000 duplicate key error collection: test.users index: _id_ dup key: { : 7 }" }, "empty": false } ],"empty": false }, "ok": 1.0 }, "empty": false } ], "size": 0, "error": null }

```

[Julien Viet]

Hi,

you do need to parse the string and remove them from there.

If you don't want to recreate an in memory structure you could try using the event driven parser and emit a new json string without the parts you don't want

Julien

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[Xin WANG]

Thanks for your reply, I have registered a MessageCodec for ArrayList in my program but it does not help, is there any easy/simple solution I can do to remove the extra node in serialized string of JsonObject？

[Xin WANG]

Is any one have any idea?