| /* |
| * 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.apache.ignite.platform; |
| |
| import java.io.BufferedReader; |
| import java.io.File; |
| import java.io.InputStreamReader; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.concurrent.ForkJoinPool; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * Platform process utils for tests. |
| */ |
| @SuppressWarnings("unused") // Called from Platform. |
| public class PlatformProcessUtils { |
| /** */ |
| private static volatile Process process; |
| |
| /** |
| * Starts a new process. |
| * |
| * @param file Executable name. |
| * @param arg1 Argument. |
| * @param arg2 Argument. |
| * @param env Environment. |
| * @param workDir Work directory. |
| * @param waitForOutput A string to look for in the output. |
| */ |
| public static void startProcess(String file, String arg1, String arg2, String env, String workDir, String waitForOutput) |
| throws Exception { |
| if (process != null) |
| throw new Exception("PlatformProcessUtils can't start more than one process at a time."); |
| |
| ProcessBuilder pb = new ProcessBuilder(file, arg1, arg2); |
| pb.directory(new File(workDir)); |
| pb.redirectErrorStream(true); |
| |
| if (env != null && !env.isEmpty()) { |
| for (String pair : env.split("\\|")) { |
| String[] kv = pair.split("#"); |
| assert kv.length == 2; |
| |
| pb.environment().put(kv[0], kv[1]); |
| } |
| } |
| |
| process = pb.start(); |
| |
| InputStreamReader isr = new InputStreamReader(process.getInputStream()); |
| BufferedReader br = new BufferedReader(isr); |
| List<String> log = Collections.synchronizedList(new ArrayList<>()); |
| |
| if (waitForOutput != null) { |
| try { |
| Future<?> f = ForkJoinPool.commonPool().submit(() -> { |
| try { |
| String line; |
| while ((line = br.readLine()) != null) { |
| log.add(line); |
| System.out.println("PlatformProcessUtils >> " + line); |
| |
| if (line.contains(waitForOutput)) |
| return; |
| } |
| } |
| catch (Exception ignored) { |
| // No-op. |
| } |
| }); |
| |
| f.get(3, TimeUnit.MINUTES); |
| } |
| catch (Exception e) { |
| process.destroyForcibly(); |
| process = null; |
| |
| String logString = String.join(System.lineSeparator(), log); |
| |
| throw new Exception("Failed to wait for specified output ('" + waitForOutput + "'): " + logString, e); |
| } |
| |
| if (!process.isAlive()) { |
| int exitValue = process.exitValue(); |
| process = null; |
| |
| String logString = String.join(System.lineSeparator(), log); |
| |
| throw new Exception("Process has exited unexpectedly (" + exitValue + "): " + logString); |
| } |
| } |
| |
| // Read output continuously in the background. |
| ForkJoinPool.commonPool().submit(() -> { |
| try { |
| String line; |
| while ((line = br.readLine()) != null) |
| System.out.println("PlatformProcessUtils >> " + line); |
| } |
| catch (Exception ignored) { |
| // No-op. |
| } |
| }); |
| } |
| |
| /** |
| * Kills the process previously started with {@link #startProcess}. |
| */ |
| public static void destroyProcess() throws Exception { |
| if (process == null) |
| throw new Exception("Process has not been started"); |
| |
| process.destroyForcibly(); |
| process = null; |
| } |
| } |