IndexOperations.getIndexInfo() fails for index that has partialFilterExpression containing DBRef [DATAMONGO-2388]

[spring-projects-issues]

Miika Vesti opened DATAMONGO-2388 and commented

IndexOperations.getIndexInfo() fails when database contains an index that has partialFilterExpression which contains DBRef, such as:

db.user.createIndex({organisation: 1, "email": 1}, {name: "org-uniq-email", unique: true, partialFilterExpression: {organisation: DBRef("organisation", ObjectId("59ce08baf264b906810fe8c5")), "email": {$exists: true}}})

Stack trace below

Caused by: org.bson.codecs.configuration.CodecConfigurationException: Can't find a codec for class com.mongodb.DBRef.
    at org.bson.codecs.configuration.CodecCache.getOrThrow (CodecCache.java:46)
    at org.bson.codecs.configuration.ProvidersCodecRegistry.get (ProvidersCodecRegistry.java:63)
    at org.bson.codecs.configuration.ProvidersCodecRegistry.get (ProvidersCodecRegistry.java:37)
    at org.bson.codecs.DocumentCodec.writeValue (DocumentCodec.java:184)
    at org.bson.codecs.DocumentCodec.writeMap (DocumentCodec.java:199)
    at org.bson.codecs.DocumentCodec.encode (DocumentCodec.java:141)
    at org.bson.codecs.DocumentCodec.encode (DocumentCodec.java:45)
    at org.bson.Document.toJson (Document.java:439)
    at org.bson.Document.toJson (Document.java:412)
    at org.bson.Document.toJson (Document.java:399)
    at org.springframework.data.mongodb.core.index.IndexInfo.indexInfoOf (IndexInfo.java:121)
    at org.springframework.data.mongodb.core.DefaultIndexOperations$1.getIndexData (DefaultIndexOperations.java:196)
    at org.springframework.data.mongodb.core.DefaultIndexOperations$1.doInCollection (DefaultIndexOperations.java:186)
    at org.springframework.data.mongodb.core.DefaultIndexOperations$1.doInCollection (DefaultIndexOperations.java:180)
    at org.springframework.data.mongodb.core.MongoTemplate.execute (MongoTemplate.java:585)
    at org.springframework.data.mongodb.core.MongoTemplate.execute (MongoTemplate.java:571)
    at org.springframework.data.mongodb.core.DefaultIndexOperations.execute (DefaultIndexOperations.java:211)
    at org.springframework.data.mongodb.core.DefaultIndexOperations.getIndexInfo (DefaultIndexOperations.java:180)

I believe the relevant part here is IndexInfo.java row 121:

String partialFilter = sourceDocument.containsKey("partialFilterExpression")
	? ((Document) sourceDocument.get("partialFilterExpression")).toJson()
	: null;

Here .toJson() invocation fails.

One possible fix for this would be:

CodecRegistry codecRegistry = CodecRegistries.fromRegistries(MongoClient.getDefaultCodecRegistry());
DocumentCodec codec = new DocumentCodec(codecRegistry, new BsonTypeClassMap());
String partialFilter = sourceDocument.containsKey("partialFilterExpression")
	? ((Document) sourceDocument.get("partialFilterExpression")).toJson(codec)
	: null;

---

Affects: 2.2.1 (Moore SR1)

Referenced from: pull request #797

Backported to: 2.2.1 (Moore SR1), 2.1.12 (Lovelace SR12)

[spring-projects-issues]

Miika Vesti commented

Any suggestions to work around this issue before it gets fixed?

[spring-projects-issues]

Miika Vesti commented

Actually... this may be a bug in mongo-java-driver library

[spring-projects-issues]

Miika Vesti commented

I created a ticket for mongo-java-driver as well: https://jira.mongodb.org/browse/JAVA-3453