MongoMucRelationContext.java 文件源码

@Override
public JIDs mapping(JID group) {
    // {"$match":{"jid":group.bare}}, {"$unwind":"$roles"}, {"$match":{"roles.nick":Xxx}}, {"$project":{"roles":"$roles"}}, {"$group":{"_id":"$roles.jid","resource":{"$push":"$roles.resource"}}}
    AggregationOutput output = this.config.collection().aggregate(this.buildMatcher(group), this.unwindRoles, BasicDBObjectBuilder.start().add("$match", BasicDBObjectBuilder.start(Dictionary.FIELD_ROLES + "." + Dictionary.FIELD_NICK, group.resource()).get()).get(), this.projectRoles, this.groupMapping);
    @SuppressWarnings("deprecation")
    List<?> result = MongoUtils.asList(output.getCommandResult(), Dictionary.FIELD_RESULT);
    return result.isEmpty() ? this.jids : this.extract(DBObject.class.cast(result.get(0)));
}