create a user with user manager api from java application

[ParkashSi]

I want to create a user with user manage api from java application.

Below is the code that i am using.

Repository myRepo = JcrUtils.getRepository(path);

javax.jcr.Session repoSession = myRepo.login(new SimpleCredentials("admin", "admin".toCharArray()));

org.apache.jackrabbit.api.JackrabbitSession jRabbitSession = (JackrabbitSession) repoSession;

userManager = jRabbitSession.getUserManager();

userManager.createUser(username, password);

But it gives below error

"org.apache.jackrabbit.jcr2spi.SessionImpl cannot be cast to class org.apache.jackrabbit.api.JackrabbitSession

(org.apache.jackrabbit.jcr2spi.SessionImpl and org.apache.jackrabbit.api.JackrabbitSession are in unnamed module of loader 'app')" 

[Shiv_Prakash_Patel]

Hi @ParkashSi ,

You can create a user with the help of UserManager as shown below.

Note : If you face any issue to get Resource Resolver, then please check that you have correct system user, permission and user mapper service configured.

//Fetching all User Details from Servlet Parameter
String userID = request.getParameter("userID");
String userFirstName = request.getParameter("userFirstName");
String userLastName = request.getParameter("userLastName");
String userEmail = request.getParameter("userEmail");
String password = request.getParameter("password");

//Getting ResourceResolver and Session using System Users
Map<String, Object> param = new HashMap<>();
param.put(ResourceResolverFactory.SUBSERVICE, SYSTEM_USER);
resourceResolver = resourceResolverFactory.getServiceResourceResolver(param);
Session session = resourceResolver.adaptTo(Session.class);
assert session != null;

//Getting UserManager from ResourceResolver
UserManager userManager = resourceResolver.adaptTo(UserManager.class);
assert userManager != null;

//Creation of a new user with userID
User createdUser = null;
if (userManager.getAuthorizable(userID) == null) {
    createdUser = userManager.createUser(userID, password);

    //Setting the createdUser Profile Property
    ValueFactory valueFactory = session.getValueFactory();
    Value firstNameValue = valueFactory.createValue(userFirstName, PropertyType.STRING);
    createdUser.setProperty("./profile/givenName", firstNameValue);

    Value lastNameValue = valueFactory.createValue(userLastName, PropertyType.STRING);
    createdUser.setProperty("./profile/familyName", lastNameValue);

    Value emailValue = valueFactory.createValue(userEmail, PropertyType.STRING);
    createdUser.setProperty("./profile/email", emailValue);

    session.save();
    logger.info("User successfully created with ID : {}", createdUser.getID());
} else {
        logger.info("User already exist..");
}

Regards

[ParkashSi]

Hi @Shiv_Prakash_Patel 
Thanks for sharing the information. But I need to create a user with a Java application I am not supposed to use resource resolver.
Is there a way to solve my exception with another approach? 

[Shiv_Prakash_Patel]

Hi @ParkashSi , Yes you can achieve this using curl command. You can update this command with your respective user Id, password and AEM instance urls.

curl -u admin:admin -FcreateUser= -FauthorizableId=ankur-Frep:password=ankur http://localhost:4502/libs/granite/security/post/authorizables

You have to execute this command with your java code.

If you have standalone java project, you can refer this article - cURL in Java

If you have any maven project you can refer this article - cURL in AEM Project

Regards,

[ParkashSi]

Hi @Shiv_Prakash_Patel 

Thanks for sharing the information

But I don't want to change my way. I want to create a user with Jackrabbit with existing code.

[Rohan_Garg]

Hi @ParkashSi,

Found an old thread related to this query - JackRabbitSession cannot be cast to Session

It says "JCR over RMI (Remote Method Invocation) is not full compliant with JSR-283 spec"

The JSP that you store in sling by default are given native access to the JR repo.

The author made it work by publishing the JackRabbit Ressource as a JNDI (Java Naming and Directory Interface) name and use the connection method shown below -

From a .jsp running in the same JVM as JackRabbit it is now possible to obtain the JackrabbitSession by casting from a Session.

Other Reference Link - JCR-RMI currently doesn't support the user management extensions in Jackrabbit

Hope this helps!

Best Regards,
Rohan Garg

[tushaar_srivastava]

I recently came across this issue:
It’s happening because jcr2spi.SessionImpl cannot be cast to org.apache.jackrabbit.api.JackrabbitSession.

you should use the org.apache.sling.api.resource.ResourceResolver to get the org.apache.jackrabbit.api.security.user.UserManager.

import org.apache.sling.api.resource.ResourceResolver;
import org.apache.sling.api.resource.ResourceResolverFactory;
import org.apache.jackrabbit.api.security.user.UserManager;

@ResourceResolverFactory
private ResourceResolverFactory resolverFactory;

public void createUser(String username, String password) {
    Map<String, Object> param = new HashMap<String, Object>();
    param.put(ResourceResolverFactory.SUBSERVICE, "writeService");

    try (ResourceResolver resolver = resolverFactory.getServiceResourceResolver(param)) {
        UserManager userManager = resolver.adaptTo(UserManager.class);
        if (userManager != null) {
            userManager.createUser(username, password);
        }
    } catch (LoginException e) {
        // handle exception
    }
}

[kautuk_sahni]

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