Bson pretty print using Java MongoDb driver

Question

I am using the Mongo Aggregation Framework using the Java MongoDB driver, version 3.3. I have an aggregagtion pipeline, that is merely collection of type List

Answer 1

For mongodb-java API 3.4, the constant MongoClient.DEFAULT_CODEC_REGISTRY is no more accessible directly, it's a private member. There is a static method CodecRegistry getDefaultCodecRegistry() which returns the same constant.

Another point, BsonDocument.toString() internally does a toJson() with default JsonWriterSettings. In order to see the Shell equivalent of Query, use it like below:

public void logQuery(Bson filter) {
    if (LOGGER.isDebugEnabled()) {

        LOGGER.debug(
                "filter query: " + filter.toBsonDocument(BsonDocument.class, MongoClient.getDefaultCodecRegistry())
                        .toJson(new JsonWriterSettings(JsonMode.SHELL)));
    }
}