GsonDataFormat.java mashaling/unmarshaling problem

[차정호]

Dear Camel developers.

 

I have tested json marshaling / unmarshaling with gson library,

and found there was charset assignment missing

at org.apache.camel.component.gson.GsonDataFormat.java

in Camel version 2.12.0

 

The marshal and unmarshal methods should create a stream writer or reader
with the charset "UTF-8”.

If not, Gson fails when unmarshaling non ascii character json stream like
{“name”: “차”}.

This is the exception.

com.google.gson.JsonSyntaxException:
com.google.gson.stream.MalformedJsonException: Unterminated string at line
1 column 14

           at com.google.gson.Gson.fromJson(Gson.java:818)

           at com.google.gson.Gson.fromJson(Gson.java:741)

           at
org.apache.camel.component.gson.GsonDataFormat.unmarshal(GsonDataFormat.java
:105)

…

 

So I suggest that GsonDataFormat.java be modified to have the charset
assignment part like below.

           …

           public void marshal(Exchange exchange, Object graph,
OutputStream stream) throws Exception {

                     BufferedWriter writer = IOHelper.buffered(new
OutputStreamWriter(stream, "UTF-8")); // <- modify here, please

                     gsontoJson(graph, writer);

                     writer.close();

           }

 

           …

           public Object unmarshal(Exchange exchange, InputStream stream)
throws Exception {

                     BufferedReader reader = IOHelper.buffered(new
InputStreamReader(stream, "UTF-8")); // <- modify here, please

                     Object result = gson.fromJson(reader,
this.unmarshalType);

                    reader.close();

                    return result;     

}

See https://sites.google.com/site/gson/streaming

 

Maybe I have misunderstood this, but check it please.

 

Thanks.