Created
August 29, 2011 23:42
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Best way to add custom converters to spring-data-mongodb?
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| MongoTemplate mongo = ...; | |
| List<Converter> converters = new ArrayList<Converter>(); | |
| converters.add(new Converter<DBObject, Participant>() { | |
| public Participant convert(DBObject s) { | |
| throw new UnsupportedOperationException("Not supported yet 1."); | |
| } | |
| }); | |
| converters.add(new Converter<Participant, DBObject>() { | |
| public DBObject convert(Participant s) { | |
| throw new UnsupportedOperationException("Not supported yet 2."); | |
| } | |
| }); | |
| CustomConversions cc = new CustomConversions(converters); | |
| ((MappingMongoConverter)mongo.getConverter()).setCustomConversions(cc); |
Issue found! Need to call afterPropertiesSet(). Here is the new code that works:
public MongoTemplate mongo() {
if (null != m_) return m_;
MongoCredential mc = null;
if (!S.empty(password)) {
mc = MongoCredential.createMongoCRCredential(username, db, password.toCharArray());
}
try {
ServerAddress svr = new ServerAddress(host, port);
List<MongoCredential> credentials = null == mc ? null : C.list(mc);
MongoClient client = new MongoClient(svr, credentials);
m_ = new MongoTemplate(client, db);
Converter[] ca = new Converter[]{new ObCriteria.TypeWriteConverter(), new ObCriteria.TypeReadConverter()};
CustomConversions cc = new CustomConversions(Arrays.asList(ca));
MappingMongoConverter mmc = (MappingMongoConverter)m_.getConverter();
mmc.setCustomConversions(cc);
mmc.afterPropertiesSet();
new MongoTemplateHolder().setMongoTemplate(m_);
} catch (Exception e) {
throw E.invalidConfiguration(e, "Error creating mongo client");
}
return m_;
}
@greenlaw110, good ideas, saved me a lot of debugging time
save a lot of debugging also for me. Trying to set a CustomConversions on multiple database repositories. the interesting part is:
m_ = new MongoTemplate(client, db); Converter[] ca = new Converter[]{new ObCriteria.TypeWriteConverter(), new ObCriteria.TypeReadConverter()}; CustomConversions cc = new CustomConversions(Arrays.asList(ca)); MappingMongoConverter mmc = (MappingMongoConverter)m_.getConverter(); mmc.setCustomConversions(cc); mmc.afterPropertiesSet();
in Mongo Template override. My Template override looks like the following:
@Override @Bean(name = "mongoCTGTEmplate") public MongoTemplate mongoTemplate() throws Exception { MongoTemplate m_ = new MongoTemplate(this.mongo(), databaseCTG); MappingMongoConverter mmc = (MappingMongoConverter) m_.getConverter(); mmc.setCustomConversions(this.customConversions()); mmc.afterPropertiesSet(); return m_; }
I spent a lot of time on the web looking for the solution, and find it here! thanks ;)
After much searching, I found this example to be more elegant: https://github.com/eugenp/tutorials/blob/master/spring-data-mongodb/src/main/java/org/baeldung/config/MongoConfig.java
Since the link from @mpereira-dev isn't up-to-date anymore here are some new ones:
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Doesn't work for me. I have two converters which is configured in the
mvc-dispatcher-servlet.xmlasIt works perfect as the app is running as servlet. However when I want to start the app in command line, I put the following code to configure mongotemplate:
I get the following error stack: