Subversion Repositories bacoAlunos

package pt.estgp.estgweb.utils;

import jomm.utils.MessageResources;
import pt.estgp.estgweb.domain.GenericUser;

import javax.servlet.http.HttpServletRequest;
import java.util.List;

/**
 * @author Jorge Machado
 * @date 28/Fev/2008
 * @time 10:56:12
 * @see pt.estgp.estgweb.utils
 */
public class RoleManager
{

    private static 1.5.0/docs/api/java/lang/String.html">String ROLE_MESSAGE_RESOURCES_PREFIX = "role.";
    public static 1.5.0/docs/api/java/lang/String.html">String ROLE_SEPARATOR = ",";

    private static List<String> roles = null;

    public static boolean hasRole(GenericUser u, 5+0%2Fdocs%2Fapi+List">List requiredRoles)
    {
        if(u == null)
            return false;
        for(5+0%2Fdocs%2Fapi+Object">Object role: requiredRoles)
        {
            if(hasRole(u,(1.5.0/docs/api/java/lang/String.html">String) role))
                return true;
        }
        return false;
    }
    public static boolean hasRole(GenericUser u, 1.5.0/docs/api/java/lang/String.html">String requiredRole)
    {
        if(u == null)
            return false;
        if(u.getRoles() == null || u.getRoles().length() == 0)
            return false;

        1.5.0/docs/api/java/lang/String.html">String[] roles = u.getRoles().split(ROLE_SEPARATOR);
        for(1.5.0/docs/api/java/lang/String.html">String role: roles)
        {
            if(role.equals(requiredRole))
                return true;
        }
        return false;
    }

    public static boolean hasRole(List<String> roles, 1.5.0/docs/api/java/lang/String.html">String requiredRole)
    {
        if(roles == null || roles.size() == 0)
            return false;

        for(1.5.0/docs/api/java/lang/String.html">String role: roles)
        {
            if(role.equals(requiredRole))
                return true;
        }
        return false;
    }


    /*public static List readRoles()
    {
        if(roles == null)
        {
            roles = ConfigProperties.getListValues("role.");
        }
        return roles;
    }*/

    public static 1.5.0/docs/api/java/lang/String.html">String getRoleDescription(HttpServletRequest request, 1.5.0/docs/api/java/lang/String.html">String role)
    {
        return MessageResources.getMessage(request,ROLE_MESSAGE_RESOURCES_PREFIX + role);
    }

    public static 1.5.0/docs/api/java/lang/String.html">String getSerialRoles(List<String> targetRoles)
    {
        return getSerialStringsForRoles(targetRoles);
    }

    public static List<String> getRolesFromSerial(1.5.0/docs/api/java/lang/String.html">String rolesStr)
    {
        return StringsUtils.getStringsFromSerial(rolesStr,ROLE_SEPARATOR);
    }

    public static 1.5.0/docs/api/java/lang/String.html">String addRole(1.5.0/docs/api/java/lang/String.html">String old, 1.5.0/docs/api/java/lang/String.html">String  newRole)
    {
        if(old == null || old.length() == 0)
            return newRole;
        else
        {
            List<String> oldRoles = getRolesFromSerial(old);
            if(!oldRoles.contains(newRole))
                oldRoles.add(newRole);
            else
                return old;
            return getSerialRoles(oldRoles);
        }
    }

    public static 1.5.0/docs/api/java/lang/String.html">String removeRole(1.5.0/docs/api/java/lang/String.html">String old, 1.5.0/docs/api/java/lang/String.html">String  toRemoveRole)
    {
        if(old == null || old.length() == 0)
            return "";
        else
        {
            List<String> oldRoles = getRolesFromSerial(old);
            while(oldRoles.contains(toRemoveRole))
                oldRoles.remove(toRemoveRole);
            return getSerialRoles(oldRoles);
        }
    }


    public static 1.5.0/docs/api/java/lang/String.html">String catRole(1.5.0/docs/api/java/lang/String.html">String old, 1.5.0/docs/api/java/lang/String.html">String  newRole)
    {
        if(old == null || old.length() == 0)
            return newRole;
        else
            return old + ROLE_SEPARATOR + newRole;
    }

    public static 1.5.0/docs/api/java/lang/String.html">String getSerialStringsForRoles(List<String> strings)
    {
        if (strings == null)
            return null;
        1.5.0/docs/api/java/lang/String.html">String roles = null;
        for (1.5.0/docs/api/java/lang/String.html">String role : strings)
        {
            if (roles == null)
                roles = role + ROLE_SEPARATOR;
            else
                roles += role + ROLE_SEPARATOR;
        }
        return roles;
    }

}