/src/main/java/com/atlassian/jconnect/jira/UserHelper.java

package com.atlassian.jconnect.jira;



import com.atlassian.crowd.embedded.api.User;

import com.atlassian.jira.bc.user.UserService;

import com.atlassian.jira.user.util.UserManager;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;



import java.util.UUID;



import static com.google.common.base.Preconditions.checkNotNull;



/**

 * Performs some common user operations.

 */

public class UserHelper

{

    private static final Logger log = LoggerFactory.getLogger(UserHelper.class);

    private static final String SYSTEM_USERNAME = "jiraconnectuser";



    private final UserService userService;

    private final UserManager userManager;



    public UserHelper(UserService userService, UserManager userManager)

    {

        this.userService = userService;

        this.userManager = userManager;

    }

    

    public User getJMCSystemUser()

    {

        final String username = SYSTEM_USERNAME;

        log.debug("Retrieving user " + username);

        return userManager.getUserObject(username);

    }



    public User getUser(String username)

    {



        return userManager.getUserObject(username);

    }



    public User getOrCreateJMCSystemUser()

    {

        // try to resolve user

        User user = getJMCSystemUser();



        // create user if they don't already exist

        if (user == null)

        {

            // todo these could be reconsidered..

            // make up some stub values for the required fields

            final String udid = SYSTEM_USERNAME;



            final String password = UUID.randomUUID().toString(); // TODO: possible to create a user w/o login permission ?

            final String email = udid + "@connect.jira.com";

            final String fullName = udid;



            // add user (as if signing up)

            final UserService.CreateUserValidationResult validationResult = userService

                    .validateCreateUserForSignupOrSetup(null, asUsername(udid), password, password, email, fullName);

            try

            {

                user = userService.createUserNoNotification(validationResult);

                log.debug("Created user: " + udid);

            }

            catch (Exception e)

            {

                log.error("Failed to create user", e);

                return null;

            }



            checkNotNull(user, "user");

        }

        return user;

    }



    private String asUsername(final String udid)

    {

        return udid.toLowerCase();

    }

}