I don't know how to save a object property of Vertex

[Huy Bui]

example:
@vertex
public class OAuth2AuthenticationAccessToken extends AbstractDomainEntity {
private static final long serialVersionUID = -3919074495651349876L;

@Index
private String tokenId;

@Property
private OAuth2AccessToken oAuth2AccessToken;

private String authenticationId;

@Index
private String userName;

@Index
private String clientId;

@Property
private OAuth2Authentication authentication;

@Index
private String refreshToken;
//contructor get set

}

Note: OAuth2AccessToken, OAuth2Authentication are two interface of Spring FrameWork. They will instance object when runtime. I don't know how to save them in OrientDB. in them may be have some another Class. May be refer below image.

[Huy Bui]

Hi Gjwebber,
Above problem, I think you should be add a description to annotation @Property (type = String.class) or your mind. when saving this Properties you can check and convert object to Type in the @Property annotation.

Help me resolve this problem. Because I am processing it in my project.

[Graham Webber]

@buiminhhuy, let me know how you think it should be saved? As a Serialized Object? Which means it has to implement Serializable. How can we save an Object that is not an "entity" or vertex or @Embedded object?

[Huy Bui]

Yes I mean the both two your questions:

• You can save it As a Serialized Object or String (json).
• How can we save an Object that is not an "entity" or vertex or @Embedded object?

[Huy Bui]

Hi @gjrwebber , You have any update for this problem. I think the problem will necessary for your project. When a vertex or Edge have properties type are binary, json object, serialized object,...

[Huy Bui]

@gjrwebber, Help me :D

[Graham Webber]

@buiminhhuy I am working on #21 at the moment. If you want an issue resolved, how about contributing? Fork the repo, branch it, fix it and merge request it :)

[Huy Bui]

Ok @gjrwebber, I am very happy if I am become contributor for your project. I will try to resolve.

[Graham Webber]

@buiminhhuy I have some time now to look at this one. Are you working on it?

[Huy Bui]

No, I am busy for my company project.

[Graham Webber]

ALright, I'll look at it.

[Graham Webber]

I should also note that if you want to ignore the property you can still use transient keyword or @ignore.

[Huy Bui]

ok, Thanks You.

[Huy Bui]

I got a error:
com.fasterxml.jackson.databind.JsonMappingException: No suitable constructor found for type [simple type, class org.springframework.security.oauth2.provider.OAuth2Authentication]: can not instantiate from JSON object (need to add/enable type information?)
at [Source: java.io.StringReader@5df99cba; line: 1, column: 2]

The error occurred because the Object OAuth2Authentication of Spring Framework no constructor suitable.

To resolve the bug, you can supply me how to add a converter to this. Or you can save Object under type binary data.

Before I have implemented for Neo4j by Converter but on your framework, I don't know. You can ref http://stackoverflow.com/questions/28399712/neo4j-tokenstore-spring-oauth2/29910299#29910299 (this link I implement on Neo4j)

[Graham Webber]

You'll have to add a mixin (new) as described here to the @Property annotation.

Something like @Property(jsonMixin = OAuth2AuthenticationMixin.class) where OAuth2AuthenticationMixin will have to be written by you.

[Huy Bui]

Thanks for quick response.

[Huy Bui]

Hi @gjrwebber
I added OAuth2AuthenticationMixin.class to OAuth2AuthenticationAccessToken.

public abstract class OAuth2AuthenticationMixin {
    OAuth2AuthenticationMixin(@JsonProperty("oauth2Request") OAuth2Request storedRequest, @JsonProperty("userAuthentication") Authentication userAuthentication) {}
    @JsonProperty("oauth2Request") abstract OAuth2Request getOAuth2Request(); // rename property
    @JsonProperty("userAuthentication") abstract Authentication getUserAuthentication(); // rename property

}

It seem work ok, but I again get a bug with OAuth2Request, mixin Json as below:

GremlinSchema:236] Could not load property GremlinProperty{name='authentication', accessor=org.springframework.data.gremlin.schema.property.accessor.GremlinJSONFieldPropertyAccessor@76dccb0c, type=class java.lang.String} of <mypackage>.OAuth2AuthenticationAccessToken@abd6d973
java.lang.IllegalStateException: Can not construct instance of org.springframework.security.core.GrantedAuthority, problem: abstract types either need to be mapped to concrete types, have custom deserializer, or be instantiated with additional type information
 at [Source: java.io.StringReader@677a625a; line: 1, column: 192] (through reference chain: org.springframework.security.oauth2.provider.OAuth2Request["authorities"])

I need implement to deserialize in
@Property
private OAuth2AccessToken oAuth2AccessToken;

Set<String> scope = mapper.readValue(jsonNode.get("scope"), new TypeReference<HashSet<String>>() {});

or for authorities above, because default json parse wrong syntax.
I thinks, I must be add converter to convert as my expectation, before converter as below

public class StringToOAuth2AuthenticationConverter implements Converter<String, OAuth2Authentication> {

    @Override
    public OAuth2Authentication convert(final String source) {
        // some code that takes a String and returns an object of your type
        OAuth2Authentication oAuth2Authentication = null;
        try {
            ObjectMapper mapper = new ObjectMapper();
            JsonNode  rootNode = mapper.readTree(source);
            OAuth2Request oAuth2Request = getOAuth2Request(rootNode.get("oauth2Request"), mapper);
            JsonNode userAuthentication = rootNode.get("userAuthentication");
            JsonNode principal = userAuthentication.get("principal");
            UserAccount userAccount = mapper.readValue(principal.get("userAccount"), UserAccount.class);
            BBUserDetails userDetails = new BBUserDetails(userAccount);
            List<Map<String, String>> authorities = mapper.readValue(userAuthentication.get("authorities"), new TypeReference<List<Map<String, String>>>() {});
            UsernamePasswordAuthenticationToken authentication = new UsernamePasswordAuthenticationToken(userDetails, null, getAuthorities(authorities));
            oAuth2Authentication = new OAuth2Authentication(oAuth2Request, authentication);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return oAuth2Authentication;
    }

    private OAuth2Request getOAuth2Request(final JsonNode jsonNode, ObjectMapper mapper) throws JsonParseException, JsonMappingException, IOException{
        Map<String, String> requestParameters = mapper.readValue(jsonNode.get("requestParameters"),new TypeReference<Map<String, String>>() {});
        String clientId = jsonNode.get("clientId").getTextValue();
        List<Map<String, String>> authorities = mapper.readValue(jsonNode.get("authorities"), new TypeReference<List<Map<String, String>>>() {});
        Set<String> scope = mapper.readValue(jsonNode.get("scope"), new TypeReference<HashSet<String>>() {});
        Set<String> resourceIds =   mapper.readValue(jsonNode.get("resourceIds"), new TypeReference<HashSet<String>>() {});
        return new OAuth2Request(requestParameters, clientId, getAuthorities(authorities) , true, scope, resourceIds, null, null, null);
    }

    private Collection<? extends GrantedAuthority> getAuthorities(
            List<Map<String, String>> authorities) {
        List<GrantedAuthority> grantedAuthorities = new ArrayList<GrantedAuthority>(authorities.size());
        for (Map<String, String> authority : authorities) {
            grantedAuthorities.add(new SimpleGrantedAuthority(authority.get("authority")));
        }
        return grantedAuthorities;
    }

}

[Huy Bui]

I completed this. as below code:

public abstract class OAuth2AuthenticationMixin {
    @JsonCreator
    OAuth2AuthenticationMixin(@JsonProperty("oauth2Request") OAuth2Request storedRequest, 
                                @JsonProperty("userAuthentication") Authentication userAuthentication) {}

    @JsonDeserialize(using=CustomOAuth2RequestDeserializer.class) abstract OAuth2Request getOAuth2Request(); // rename property
    @JsonDeserialize(using=CustomAuthenticationDeserializer.class) abstract Authentication getUserAuthentication(); // rename property
    @JsonDeserialize(using=CustomAuthorityDeserializer.class) abstract Collection<? extends GrantedAuthority> getAuthorities(); // rename property
    @JsonIgnore abstract Object getPrincipal();
    @JsonIgnore abstract Object getCredentials();
    @JsonIgnore abstract boolean isClientOnly();
    @JsonIgnore abstract String getName();
}