1/* 2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25package jdk.tools.jlink.plugin; 26 27import java.util.Objects; 28import java.util.Optional; 29import java.util.stream.Stream; 30 31/** 32 * The module view of a ResourcePool. 33 */ 34public interface ResourcePoolModuleView { 35 /** 36 * Find the module, if any, of the given name. 37 * 38 * @param name name of the module 39 * @return Optional containing the module of the given name. 40 */ 41 public Optional<ResourcePoolModule> findModule(String name); 42 43 /** 44 * Find the module, if any, of the given ResourcePoolEntry 45 * 46 * @param entry The ResourcePoolEntry whose module is looked up. 47 * @return Optional containing the module of the given ResourcePoolEntry 48 */ 49 public default Optional<ResourcePoolModule> findModule(ResourcePoolEntry entry) { 50 String name = Objects.requireNonNull(entry).moduleName(); 51 return name != null? findModule(name) : Optional.empty(); 52 } 53 54 /** 55 * The stream of modules contained in this ResourcePool. 56 * 57 * @return The stream of modules. 58 */ 59 public Stream<ResourcePoolModule> modules(); 60 61 /** 62 * Return the number of ResourcePoolModule count in this ResourcePool. 63 * 64 * @return the module count. 65 */ 66 public int moduleCount(); 67} 68