Custom converter for multibuckets

[moriyahazan]

i implemented multibuckets according to explained in this issue but i can't add custom converters to all buckets, the converters added for default bucket only

please see my code:

Custome converter

 @Override
   public CouchbaseCustomConversions customConversions() {
       return new CouchbaseCustomConversions(Arrays.asList(
               ZonedDateTimeToEpochTimeConverter.INSTANCE,
               EpochTimeToZonedDateTimeConverter.INSTANCE));
   }


   @WritingConverter
   public enum ZonedDateTimeToEpochTimeConverter implements Converter<ZonedDateTime, CouchbaseDocument> {
       INSTANCE;

       @Override
       public CouchbaseDocument convert(ZonedDateTime zonedDateTime) {
           CouchbaseDocument cd = new CouchbaseDocument();
           cd.put(EPOC_MILLI, zonedDateTime.toInstant().toEpochMilli());
           cd.put(OFFSET_SECONDS, zonedDateTime.getOffset().getTotalSeconds());
           return cd;
       }
   }

   @ReadingConverter
   public enum EpochTimeToZonedDateTimeConverter implements Converter<CouchbaseDocument, ZonedDateTime> {
       INSTANCE;

       @Override
       public ZonedDateTime convert(CouchbaseDocument epochTime) {
           long timeMilli = Long.parseLong(epochTime.getContent().get(EPOC_MILLI).toString());
           int offsetSeconds = Integer.parseInt(epochTime.getContent().get(OFFSET_SECONDS).toString());

           ZoneOffset convertedOffset = ZoneOffset.ofTotalSeconds(offsetSeconds);
           return ZonedDateTime.ofInstant(Instant.ofEpochMilli(timeMilli), convertedOffset);
       }
   }

add converter to the costum mapping:

MappingCouchbaseConverter mappingCouchbaseConverter = new MappingCouchbaseConverter();
mappingCouchbaseConverter.setCustomConversions(customConversions());
baseMapping.mapEntity(Class.forName(beanDefinition.getBeanClassName()),myCouchbaseTemplate(myCouchbaseClientFactory("mybucket"),mappingCouchbaseConverter ));

I am getting below exception when save the doc although there is convertor from zonedatetime to couchebasedocument

2021-05-27 17:29:27.178 ERROR 18916 --- [nio-9001-exec-1] g.k.e.error.DefaultGraphQLErrorHandler   : Error executing query Exception while fetching data (/createProduct) : No converter found capable of converting from type [java.time.ZonedDateTime] to type [org.springframework.data.couchbase.core.mapping.CouchbaseDocument]

org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [java.time.ZonedDateTime] to type [org.springframework.data.couchbase.core.mapping.CouchbaseDocument]
   at org.springframework.core.convert.support.GenericConversionService.handleConverterNotFound(GenericConversionService.java:322) ~[spring-core-5.3.5.jar:5.3.5]
   at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:195) ~[spring-core-5.3.5.jar:5.3.5]
   at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:175) ~[spring-core-5.3.5.jar:5.3.5]
   at org.springframework.data.couchbase.core.convert.MappingCouchbaseConverter.lambda$getPotentiallyConvertedSimpleWrite$2(MappingCouchbaseConverter.java:784) ~[spring-data-couchbase-4.1.6.jar:4.1.6]
   at java.base/java.util.Optional.map(Optional.java:265) ~[na:na]
   at org.springframework.data.couchbase.core.convert.MappingCouchbaseConverter.getPotentiallyConvertedSimpleWrite(MappingCouchbaseConverter.java:784) ~[spring-data-couchbase-4.1.6.jar:4.1.6]
   at org.springframework.data.couchbase.core.convert.MappingCouchbaseConverter.writeSimpleInternal(MappingCouchbaseConverter.java:774) ~[spring-data-couchbase-4.1.6.jar:4.1.6]
   at org.springframework.data.couchbase.core.convert.MappingCouchbaseConverter.access$200(MappingCouchbaseConverter.java:82) ~[spring-data-couchbase-4.1.6.jar:4.1.6]

Can you please help?

[mikereiche]

Please provide a complete example. Or coordinates to the github project.

[mikereiche]

From #878 "@mikereiche I tried to use special name for converter but issue still persist
please see code in https://github.com/moriyahazan/designer-service"

The problem is that the converters are not being registered with the conversion service. There is a workaround below.
When not using repository mapping, the template is created with the mappingCouchbaseConverter Bean, and the spring framework call its afterPropertiesSet() method, which in turn registers the converters with the conversion service.

@Override
public void configureRepositoryOperationsMapping(RepositoryOperationsMapping baseMapping) {
    MappingCouchbaseConverter mappingCouchbaseConverter = new MappingCouchbaseConverter();
    mappingCouchbaseConverter.setCustomConversions(customBucketsConversions());
    mappingCouchbaseConverter.afterPropertiesSet(); // <<<< necessary to register with conversionService
    CouchbaseTemplate projectTemplate = customCouchbaseTemplate(customCouchbaseClientFactory("project_manager"), mappingCouchbaseConverter);
    baseMapping.mapEntity(Project.class, projectTemplate); 
}

[moriyahazan]

works, thank you!

[mikereiche]

It would probably be a good idea for all the templates to use the mappingCouchbaseConverter Bean (instead of creating their own).

[mikereiche]

setCustomConverters() should call afterPropertiesSet() to register the converters.