| /* |
| * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.tools.javac.platform; |
| |
| import com.sun.tools.javac.main.Arguments; |
| import com.sun.tools.javac.platform.PlatformProvider.PlatformNotSupported; |
| import java.util.Optional; |
| import java.util.ServiceLoader; |
| import java.util.stream.StreamSupport; |
| |
| /** Internal utilities to work with PlatformDescriptions. |
| * |
| * <p><b>This is NOT part of any supported API. |
| * If you write code that depends on this, you do so at your own risk. |
| * This code and its internal interfaces are subject to change or |
| * deletion without notice.</b> |
| */ |
| public class PlatformUtils { |
| |
| public static PlatformDescription lookupPlatformDescription(String platformString) { |
| int separator = platformString.indexOf(":"); |
| String platformProviderName = |
| separator != (-1) ? platformString.substring(0, separator) : platformString; |
| String platformOptions = |
| separator != (-1) ? platformString.substring(separator + 1) : ""; |
| Iterable<PlatformProvider> providers = |
| ServiceLoader.load(PlatformProvider.class, Arguments.class.getClassLoader()); |
| |
| return StreamSupport.stream(providers.spliterator(), false) |
| .filter(provider -> StreamSupport.stream(provider.getSupportedPlatformNames() |
| .spliterator(), |
| false) |
| .anyMatch(platformProviderName::equals)) |
| .findFirst() |
| .flatMap(provider -> { |
| try { |
| return Optional.of(provider.getPlatform(platformProviderName, platformOptions)); |
| } catch (PlatformNotSupported pns) { |
| return Optional.empty(); |
| } |
| }) |
| .orElse(null); |
| } |
| |
| } |