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https://issues.apache.org/jira/browse/CAMEL-17956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17521542#comment-17521542
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Mikael Andersson Wigander edited comment on CAMEL-17956 at 4/20/22 2:24 PM:
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Dug deeper and found this as well:
{code:java|title=JacksonJsonAdapter.class}
public class JacksonJsonAdapter implements JsonPathAdapter {
private static final String JACKSON_JAXB_MODULE =
"com.fasterxml.jackson.module.jaxb.JaxbAnnotationModule";
private final ObjectMapper defaultMapper;
private CamelContext camelContext;
public JacksonJsonAdapter() {
defaultMapper = new ObjectMapper();
}
@Override
public void init(CamelContext camelContext) {
this.camelContext = camelContext;
// Attempt to enables JAXB processing so we can easily convert JAXB
annotated pojos also
Class<?> clazz =
camelContext.getClassResolver().resolveClass(JACKSON_JAXB_MODULE);
if (clazz != null) {
Object obj = camelContext.getInjector().newInstance(clazz);
if (obj instanceof Module) {
Module module = (Module) obj;
defaultMapper.registerModule(module);
}
}
}
{code}
This one as well defines its own ObjectMapper.
I think the implementation seems much more complex than I thought.
was (Author: hakuseki):
Dug deeper and found this as well:
{code:java|title=JacksonJsonAdapter.class}
public class JacksonJsonAdapter implements JsonPathAdapter {
private static final String JACKSON_JAXB_MODULE =
"com.fasterxml.jackson.module.jaxb.JaxbAnnotationModule";
private final ObjectMapper defaultMapper;
private CamelContext camelContext;
public JacksonJsonAdapter() {
defaultMapper = new ObjectMapper();
}
@Override
public void init(CamelContext camelContext) {
this.camelContext = camelContext;
// Attempt to enables JAXB processing so we can easily convert JAXB
annotated pojos also
Class<?> clazz =
camelContext.getClassResolver().resolveClass(JACKSON_JAXB_MODULE);
if (clazz != null) {
Object obj = camelContext.getInjector().newInstance(clazz);
if (obj instanceof Module) {
Module module = (Module) obj;
defaultMapper.registerModule(module);
}
}
}
{code}
This one as well defines its own ObjectMapper.
I think the implementation ios much more complex than I thought.
> JSONPath option to use global registered ObjectMapper
> -----------------------------------------------------
>
> Key: CAMEL-17956
> URL: https://issues.apache.org/jira/browse/CAMEL-17956
> Project: Camel
> Issue Type: Improvement
> Components: camel-jsonpath
> Affects Versions: 3.14.2, 3.16.0
> Reporter: Mikael Andersson Wigander
> Priority: Minor
> Fix For: 3.17.0
>
>
> I have discovered that when using JSONPath in a route, the implementation
> does not use any ObjectMapper registered, it uses it's own.
> {code:java|title=JacksonMappingProvider.class}
> public class JacksonMappingProvider implements MappingProvider {
> private final ObjectMapper objectMapper;
> public JacksonMappingProvider() {
> this(new ObjectMapper());
> }
> public JacksonMappingProvider(ObjectMapper objectMapper) {
> this.objectMapper = objectMapper;
> }
> {code}
> However, when using *.jsonpathWriteAsString()*, this uses global registered
> ObjectMapper.
> {code:java|title=JacksonJsonAdapter.class}
> @Override
> public String writeAsString(Object value, Exchange exchange) {
> ObjectMapper mapper =
> resolveObjectMapper(exchange.getContext().getRegistry());
> try {
> return mapper.writeValueAsString(value);
> } catch (Throwable e) {
> // ignore because we are attempting to convert
> }
> return null;
> }
> {code}
> It does not go through the *JsonPathEngine* so it seems it's a completly
> differrent implementation however still defined within JSONPath language as
> in this documentation:
> https://camel.apache.org/components/3.14.x/languages/jsonpath-language.html#_split_json_data_into_sub_rows_as_json
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