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 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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package org.jboss.shrinkwrap.api;

ExtensionLoader Describes a way for the Archive to load extensions. If an implementation is not set in the Domain's Configuration, ServiceExtensionLoader is set as the default strategy to load extensions. 
Author:
Aslak Knutsen, Ken Gullaksen
Version:
$Revision: $/**
 * ExtensionLoader
 *
 * Describes a way for the {@link Archive} to load extensions. If an implementation is not set in the {@link Domain}'s
 * {@link Configuration}, {@link ServiceExtensionLoader} is set as the default strategy to load extensions.
 *
 * @author <a href="mailto:aslak@conduct.no">Aslak Knutsen</a>
 * @author <a href="mailto:ken@glxn.net">Ken Gullaksen</a>
 * @version $Revision: $
 */
public interface ExtensionLoader {

    
Load a Extension.
Params:
extensionClass – 
           The Extension interface
baseArchive – 
           The base archive to use
Type parameters:
<T> – 
Returns:
a/**
     * Load a Extension.
     *
     * @param <T>
     * @param extensionClass
     *            The Extension interface
     * @param baseArchive
     *            The base archive to use
     * @return a
     */
    <T extends Assignable> T load(Class<T> extensionClass, Archive<?> baseArchive);

    
Add a Override to the normal Extension loading.
If a specific class is found to be overridden, the class will not be loaded using the normal strategy.
Params:
extensionClass – 
           The Extension interface class
extensionImplClass – 
           The Extension implementation class
Type parameters:
<T> – 
           The type of Extension
Returns:
this ExtensionLoader/**
     * Add a Override to the normal Extension loading.
     *
     * If a specific class is found to be overridden, the class will not be loaded using the normal strategy.
     *
     * @param <T>
     *            The type of Extension
     * @param extensionClass
     *            The Extension interface class
     * @param extensionImplClass
     *            The Extension implementation class
     * @return this ExtensionLoader
     */
    <T extends Assignable> ExtensionLoader addOverride(Class<T> extensionClass,
        Class<? extends T> extensionImplClass);

    
Gets the extension for the given type from the extensionMapping
Params:
extensionClass – 
           The Extension interface class
Type parameters:
<T> – 
           The type of Extension
Returns:
the filename extension/**
     * Gets the extension for the given type from the extensionMapping
     *
     * @param extensionClass
     *            The Extension interface class
     * @param <T>
     *            The type of Extension
     * @return the filename extension
     */
    <T extends Assignable> String getExtensionFromExtensionMapping(Class<T> extensionClass);

    
Gets the ArchiveFormat for the given type from the extensionMapping 
Params:
extensionClass – 
           The Extension interface class
Type parameters:
<T> – 
           The type of Extension
Returns:
the archive format/**
     * Gets the {@link org.jboss.shrinkwrap.api.ArchiveFormat} for the given type from the extensionMapping
     *
     * @param extensionClass
     *            The Extension interface class
     * @param <T>
     *            The type of Extension
     * @return the archive format
     */
    <T extends Archive<T>> ArchiveFormat getArchiveFormatFromExtensionMapping(Class<T> extensionClass);

}