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/******************************************************************************
 * JBoss, a division of Red Hat                                               *
 * Copyright 2009, Red Hat Middleware, LLC, and individual                    *
 * contributors as indicated by the @authors tag. See the                     *
 * copyright.txt in the distribution for a full listing of                    *
 * individual contributors.                                                   *
 *                                                                            *
 * This is free software; you can redistribute it and/or modify it            *
 * under the terms of the GNU Lesser General Public License as                *
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 *                                                                            *
 * This software is distributed in the hope that it will be useful,           *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of             *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU           *
 * Lesser General Public License for more details.                            *
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package org.gatein.common.util;

import java.io.InputStream;

/**
 * A generic interface which define loading capabilities of resources.
 * The name format must follow the regular expression : ^(/[-a-zA-Z0-9_\.]+)+$
 *
 * @author Julien Viet
 * @version $Revision: 6653 $
 */
public interface ResourceLoader
{

   /** Helper to validate name. */ 
   String REGEX_NAME_VALIDATOR = "^(/[-a-zA-Z0-9_\\.]+)+$";

   /**
    * Returns an InputStream or null if not found.
    */
   InputStream load(String location);

   /**
    *
    */
   LoaderResource getResource(String location);
}