package com.randomnoun.common.security.impl;
   
   /* (c) 2013 randomnoun. All Rights Reserved. This work is licensed under a
    * BSD Simplified License. (http://www.randomnoun.com/bsd-simplified.html)
    */
   
   import java.io.IOException;
   import java.util.*;
   
  import org.apache.log4j.Logger;
  
  import com.randomnoun.common.security.Permission;
  import com.randomnoun.common.security.SecurityLoader;
  import com.randomnoun.common.security.User;
  import com.randomnoun.common.security.impl.NullSecurityLoaderImpl;
  
  /**
   * An implementation of the {@link com.randomnoun.common.security.SecurityLoader}
   * class, that does absolutely nothing.
   * 
   * <p>All methods do nothing or return empty lists, 
   * and searches for user or role IDs return -1.
   * 
   * @author knoxg
   */ 
  public class NullSecurityLoaderImpl implements SecurityLoader
  {
      
  	/** Logger for this class */
  	public static final Logger logger = Logger.getLogger(NullSecurityLoaderImpl.class);
  
  	/** Initialise this loader.
  	 *
  	 * @see com.randomnoun.common.security.SecurityLoader#initialise(java.util.Map)
  	 */
  	public void initialise(Map<String, Object> properties) {
  	}
  
  	public List<Permission> loadAllRolePermissions() throws IOException {
  		return Collections.emptyList();
  	}
  
  	public List<Permission> loadRolePermissions(String role) throws IOException {
  		return Collections.emptyList();
  	}
  
  	public List<Permission> loadUserRolePermissions(User user) throws IOException {
  		return Collections.emptyList();	}
  
  	public List<Permission> loadUserPermissions(User user) throws IOException {
  		return Collections.emptyList();	}
  
  	public List<String> loadUserRoles(User user) throws IOException {
  		return Collections.emptyList();	
  	}
  
  	public User loadUser(long userId) {
  		return null;
  	}
  	
  	public List<User> loadAllUsers() throws IOException  {
  		return Collections.emptyList();	
  	}
  
  	public List<String> loadAllResources() throws IOException {
  		return null;
  	}
  
  	public List<String> loadAllActivities(String resourceName) throws IOException {
  		return Collections.emptyList();
  	}
  
  	public List<String> loadAllRoles() throws IOException {
  		return Collections.emptyList();
  	}
  
  	public List<Permission> loadAllPermissions() throws IOException {
  		return Collections.emptyList();
  	}
  
  	public List<Map<String, Object>> loadAllRoleDetails() throws IOException {
  		return Collections.emptyList();
  	}
  
  	public List<Map<String, Object>> loadAllUserDetails() throws IOException {
  		return Collections.emptyList();
  	}
  
  	public void resetSecurityContext() throws IOException {
  		
  	}
  
  	public void saveUserRolesAndPermissions(User user, List<String> roles, List<Permission> userPermissions)
  		throws IOException {
  		throw new UnsupportedOperationException("not implemented");
  	}
  
  	public void saveRolePermissions(String role, List<Permission> rolePermissions)
  			throws IOException {
 		throw new UnsupportedOperationException("not implemented");
 	}
 
 	
 }