001/* 002 * Copyright 2018 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.plugins.core.ui.resources; 017 018import java.util.Comparator; 019import java.util.Map; 020import java.util.Set; 021import java.util.function.Function; 022import java.util.function.Predicate; 023 024import org.ametys.plugins.core.ui.minimize.HashCache.UriData; 025import org.ametys.runtime.plugin.component.AbstractThreadSafeComponentExtensionPoint; 026 027/** 028 * Extension point for calculating a resource's dependencies 029 */ 030public class ResourceDependenciesListExtensionPoint extends AbstractThreadSafeComponentExtensionPoint<ResourceDependenciesList> 031{ 032 /** The avalon ROLE */ 033 public static final String ROLE = ResourceDependenciesListExtensionPoint.class.getName(); 034 035 /** 036 * Get the list of dependencies of a resource 037 * @param uri The resource uri 038 * @param data Additional data, specific per ResourceDependenciesList implementations 039 * @return The list of dependencies' URIs, or null if no extension supports this URI 040 */ 041 public Set<UriData> getDependencies(String uri, Map<String, String> data) 042 { 043 Predicate<ResourceDependenciesList> isUriSupported = ext -> ext.isSupported(uri); 044 Function<ResourceDependenciesList, Set<UriData>> getUriDependenciesList = ext -> ext.getDependenciesList(uri, data); 045 046 return getExtensionsIds().stream() 047 .map(this::getExtension) 048 .filter(isUriSupported) 049 .sorted(Comparator.comparing(ResourceDependenciesList::getPriority).reversed()) 050 .findFirst() 051 .map(getUriDependenciesList) 052 .orElse(null); 053 } 054}