001/*
002 *  Copyright 2016 Anyware Services
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package org.ametys.core.cocoon;
017
018import java.util.Comparator;
019
020import org.ametys.runtime.plugin.component.AbstractComponentExtensionPoint;
021
022/**
023 * Extension point for resources handler
024 */
025public class ResourceHandlerExtensionPoint extends AbstractComponentExtensionPoint<ResourceHandler>
026{
027    /** Avalon Role */
028    public static final String ROLE = ResourceHandlerExtensionPoint.class.getName();
029    
030    /**
031     * Get the extension of max priority matching the provided source, based on the registered suffixes
032     * @param source The source
033     * @return The corresponding extension
034     */
035    public ResourceHandler getResourceHandler(String source)
036    {
037        return getExtensionsIds().stream()
038                .map(this::getExtension)
039                .filter(handler -> handler.isSupported(source))
040                .sorted(Comparator.comparing(ResourceHandler::getPriority))
041                .findFirst()
042                .orElse(null);
043    }
044}