| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.netbeans.modules.extexecution.process.jdk9; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| import java.util.Map; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| import java.util.stream.Stream; |
| import org.netbeans.spi.extexecution.base.ProcessesImplementation; |
| import org.openide.util.lookup.ServiceProvider; |
| |
| /** |
| * |
| * @author phejl |
| */ |
| @ServiceProvider(service=ProcessesImplementation.class, position = 1000) |
| public class ProcessesImpl implements ProcessesImplementation { |
| |
| private static final Logger LOGGER = Logger.getLogger(ProcessesImpl.class.getName()); |
| |
| private static final boolean ENABLED; |
| |
| private static final Method PROCESS_TO_HANDLE; |
| |
| private static final Method PROCESS_HANDLE_DESCENDANTS; |
| |
| private static final Method PROCESS_HANDLE_DESTROY; |
| |
| static { |
| Method toHandle = null; |
| Method descendants = null; |
| Method destroy = null; |
| try { |
| toHandle = Process.class.getDeclaredMethod("toHandle", new Class[]{}); // NOI18N |
| if (toHandle != null) { |
| Class processHandle = Class.forName("java.lang.ProcessHandle"); // NOI18N |
| descendants = processHandle.getDeclaredMethod("descendants", new Class[]{}); // NOI18N |
| destroy = processHandle.getDeclaredMethod("destroy", new Class[]{}); // NOI18N |
| } |
| } catch (NoClassDefFoundError | Exception ex) { |
| LOGGER.log(Level.WARNING, null, ex); |
| } |
| |
| ENABLED = toHandle != null && descendants != null && destroy != null; |
| PROCESS_TO_HANDLE = toHandle; |
| PROCESS_HANDLE_DESCENDANTS = descendants; |
| PROCESS_HANDLE_DESTROY = destroy; |
| } |
| |
| @Override |
| public void killTree(Process process, Map<String, String> environment) { |
| if (!ENABLED) { |
| throw new UnsupportedOperationException("The JDK 9 way of killing process tree is not supported"); // NOI18N |
| } |
| |
| try { |
| Object handle = PROCESS_TO_HANDLE.invoke(process, (Object[]) null); |
| try (Stream<?> s = (Stream<?>) PROCESS_HANDLE_DESCENDANTS.invoke(handle, (Object[]) null)) { |
| destroy(handle); |
| s.forEach(ch -> destroy(ch)); |
| } |
| } catch (IllegalAccessException | IllegalArgumentException |InvocationTargetException ex) { |
| throw new UnsupportedOperationException("The JDK 9 way of killing process tree has failed", ex); // NOI18N |
| } |
| } |
| |
| private static void destroy(Object handle) { |
| try { |
| PROCESS_HANDLE_DESTROY.invoke(handle, (Object[]) null); |
| } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException ex) { |
| LOGGER.log(Level.INFO, null, ex); |
| } |
| } |
| |
| } |