Implement Gremlin based UserEntry

[sbespalov]

Task Description

The UserEnity should have a new repository class with Gremlin based CRUD and Spring Data Neo4j based custom Cypher queries. The UserRepository should be placed under org.carlspring.strongbox.gremlin.repositories.

Tasks

The following tasks will need to be carried out:

• Re-work UserEntry class:
  • Create a UserEntity class with neo4j-ogm annotations
  • Re-work UserEntryService into UserRepository
  • Re-work OrientDbUserService into GremlinUserService
  • Replace all UserEntry references with UserEntity
  • Implement UserAdapter for UserRepository class
  • Provide Cypher queries with @Query annotation for UserQueries interface

Task Relationships

This task:

• Is a sub-task of: Migrate Strongbox from OrientDB to JanusGraph #1649
• depends on: OrientDB Gremlin configuration #1650

Help

• Our chat
• Points of contact:
  • @carlspring
  • @fuss86
  • @sbespalov
  • @steve-todorov

[steve-todorov]

@sbespalov could you please add a few words about the purpose of each of the mentioned classes and what they should be doing?

[carlspring]

Some questions:

• What should the UserAdapter be for exactly?
• What should one keep in mind while migrating the OrientDbUserService into GremlinUserService? Are there some common steps to follow that could be used for other such services that will have to be migrated? (If so, could you please list them here for future reference? Thanks!).

[kaansonmezoz]

I'd like to work on this issue. But there are some things which should be cleared out.

• What is the role of UserAdapter, what should be adapting from what ?
• I've searched for OrientDbUserService in the code base and the only thing I found is that a variable named after orientDbUserService whose type is UserService. Is that what you meant by OrientDbUserService ? Do you mean UserService ?

[carlspring]

@kaansonmezoz ,

This is a proof-of-concept based on the strongbox project. The code will initially (@sbespalov , please confirm, if this is how you envision it) be in strongbox-janusgraph-cassandra-poc where we have Janusgraph + Cassandra all set up.

[sbespalov]

thank you all for interesing to this issue. There is some general explanations in master task, so please have a look at #1649. Also it would be good to see on how all the things implemented in strongbox-janusgraph-cassandra-poc. If there still will be a general questions please ask at #1649 comments.

[steve-todorov]

@sbespalov what is the state of this task? I believe @carlspring mentioned this has already been done and committed into #1649 ? Can we now close this or is there anything else needed to be done?

[sbespalov]

@steve-todorov it's not implemented. probably @carlspring can clarify better what is the status.

[carlspring]

@steve-todorov : There seems to be some sort of confusion.
@sbespalov : I thought I saw this implemented on your branch. :-D

[sbespalov]

I've just fixed User related compilation issues, but this is just stubs withut implementation

[carlspring]

Will be done as part of #1649 via #1676 .