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https://issues.apache.org/jira/browse/CAMEL-8905?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14629344#comment-14629344
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Claus Ibsen commented on CAMEL-8905:
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What does jsonpath use as parser by default? I assume its not jackson, and thus
maybe this can be beneficial as an interim solution until those would work with
encoding detection out of the box?
And btw does the input stream wrapper work with "stream caching" eg they are
re-readable so you can use them in a content based router as predicate, and
then afterwards read the full stream again?
> encoding problems in jsonpath
> -----------------------------
>
> Key: CAMEL-8905
> URL: https://issues.apache.org/jira/browse/CAMEL-8905
> Project: Camel
> Issue Type: Bug
> Components: camel-jsonpath
> Affects Versions: 2.15.2
> Reporter: Franz Forsthofer
> Fix For: 2.16.0, 2.15.3
>
> Attachments: 0001-jsonpath-automatic-charset-detection.patch,
> booksUTF16BE.json, booksUTF16LE.json, jsonUCS2BigEndianWithBOM.txt,
> jsonUCS2BigEndianWithoutBOM.txt, jsonUCS2LittleEndianWithBom.txt,
> jsonUCS2LittleEndianWithoutBOM.txt, jsonUTF32BEWithBOM.txt,
> jsonUTF32BEWithoutBOM.txt, jsonUTF32LEWithBOM.txt, jsonUTF32LEWithoutBOM.txt
>
>
> I detected three different encoding problems in jsonpath:
> - if jsonpath is called with an input stream which has an encoding different
> from the default encoding (given by Charset.defaultCharset()) then jsonpath
> still uses the default encoding. Error location in JsonPathEngine:
> else if (json instanceof InputStream) {
> InputStream is = (InputStream) json;
> return path.read(is, Charset.defaultCharset().displayName(),
> configuration);}
>
> - if jsonpath is called with a json file whose encoding is different from
> UTF-8, then jsonpath still parses the document with UTF-8. Error location in
> JsonPathEngine:
> else if (json instanceof File) {
> File file = (File) json;
> return path.read(file, configuration);
> }
> path.read(file, configuration) uses always UTF-8
> - if jsonpath is called with an URL pointing to a JSON document whose
> encoding is different from UTF-8, then jsonPath still parses the document
> with UTF-8. Error location in JsonPathEngine:
> else if (json instanceof URL) {
> URL url = (URL) json;
> return path.read(url, configuration);
> }
> path.read(url, configuration) uses UTF-8
> My solution proposal is to determine the encoding of the JSON documents
> automatically according to the specification RFC-4627
> (https://www.ietf.org/rfc/rfc4627.txt; see chapter 3. Encoding) and then call
> the method path.read(jsonDocument,foundEncoding,configuration) with the found
> encoding. See attached patch.
> Actually I can commit the patch myself. However, I would like that somebody
> who is more familiar with jsonpath than I does review my patch.
> So please tell me if my patch can be accepted or not. I can then do the
> actual commit or I will discard the patch.
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