Metacat

import edu.ucsb.nceas.metacat.database.DBConnectionPool;

import edu.ucsb.nceas.metacat.properties.PropertyService;

import edu.ucsb.nceas.metacat.service.SessionService;

import edu.ucsb.nceas.metacat.util.DocumentUtil;

import edu.ucsb.nceas.metacat.util.MetacatUtil;

import edu.ucsb.nceas.metacat.util.SessionData;

import edu.ucsb.nceas.utilities.PropertyNotFoundException;

import edu.ucsb.nceas.metacat.shared.ServiceException;

public class PermissionController

  /**

    * Check from db connection if at least one of the list of @principals

    * @param user  the user name

    * @param groups  the groups which the use is in

    * @param myPermission  permission type to check for

    String [] userPackage=null;

    int permission = AccessControlList.intValue(myPermission);

    if ((user==null) && (groups==null || groups.length==0))

    {

      return true;

    }

    //create a userpackage including user, public and group member

    userPackage=createUsersPackage(user, groups);