| /* |
| * 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 com.epam.datalab.process.model; |
| |
| import com.epam.datalab.process.ProcessConveyor; |
| import com.epam.datalab.process.builder.ProcessInfoBuilder; |
| import com.epam.datalab.util.SecurityUtils; |
| import io.dropwizard.util.Duration; |
| import lombok.extern.slf4j.Slf4j; |
| |
| import java.io.PrintWriter; |
| import java.io.StringWriter; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Map; |
| import java.util.concurrent.CompletableFuture; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.TimeUnit; |
| import java.util.function.Supplier; |
| import java.util.stream.Collectors; |
| |
| @Slf4j |
| public class DatalabProcess { |
| |
| private final static DatalabProcess INSTANCE = new DatalabProcess(); |
| private final ProcessConveyor processConveyor; |
| private ExecutorService executorService = Executors.newFixedThreadPool(50 * 3); |
| private Map<String, ExecutorService> perUserService = new ConcurrentHashMap<>(); |
| private int userMaxparallelism = 5; |
| private long expirationTime = TimeUnit.HOURS.toMillis(3); |
| |
| private DatalabProcess() { |
| this.processConveyor = new ProcessConveyor(); |
| } |
| |
| public static DatalabProcess getInstance() { |
| return INSTANCE; |
| } |
| |
| public ExecutorService getExecutorService() { |
| return executorService; |
| } |
| |
| public void setMaxProcessesPerBox(int parallelism) { |
| this.executorService.shutdown(); |
| this.executorService = Executors.newFixedThreadPool(3 * parallelism); |
| } |
| |
| public void setMaxProcessesPerUser(int parallelism) { |
| this.userMaxparallelism = parallelism; |
| this.perUserService.forEach((k, e) -> e.shutdown()); |
| this.perUserService = new ConcurrentHashMap<>(); |
| } |
| |
| public ExecutorService getUsersExecutorService(String user) { |
| perUserService.putIfAbsent(user, Executors.newFixedThreadPool(userMaxparallelism)); |
| return perUserService.get(user); |
| } |
| |
| public CompletableFuture<ProcessInfo> start(ProcessId id, String... command) { |
| log.debug("Run OS command for user {} with UUID {}: {}", id.getUser(), id.getCommand(), |
| SecurityUtils.hideCreds(command)); |
| CompletableFuture<ProcessInfo> future = processConveyor.createBuildFuture(id, () -> new ProcessInfoBuilder(id, |
| expirationTime)); |
| processConveyor.add(id, future, ProcessStep.FUTURE); |
| processConveyor.add(id, command, ProcessStep.START); |
| return future; |
| } |
| |
| public CompletableFuture<ProcessInfo> start(String username, String uniqDescriptor, String... command) { |
| return start(new ProcessId(username, uniqDescriptor), command); |
| } |
| |
| public CompletableFuture<ProcessInfo> start(String username, String... command) { |
| return start(new ProcessId(username, String.join(" ", command)), command); |
| } |
| |
| |
| public CompletableFuture<Boolean> stop(ProcessId id) { |
| return processConveyor.add(id, "STOP", ProcessStep.STOP); |
| } |
| |
| public CompletableFuture<Boolean> stop(String username, String command) { |
| return stop(new ProcessId(username, command)); |
| } |
| |
| public CompletableFuture<Boolean> kill(ProcessId id) { |
| return processConveyor.add(id, "KILL", ProcessStep.KILL); |
| } |
| |
| public CompletableFuture<Boolean> kill(String username, String command) { |
| return kill(new ProcessId(username, command)); |
| } |
| |
| public CompletableFuture<Boolean> failed(ProcessId id) { |
| return processConveyor.add(id, "FAILED", ProcessStep.FAILED); |
| } |
| |
| public CompletableFuture<Boolean> finish(ProcessId id, Integer exitStatus) { |
| return processConveyor.add(id, exitStatus, ProcessStep.FINISH); |
| } |
| |
| public CompletableFuture<Boolean> toStdOut(ProcessId id, String msg) { |
| return processConveyor.add(id, msg, ProcessStep.STD_OUT); |
| } |
| |
| public CompletableFuture<Boolean> toStdErr(ProcessId id, String msg) { |
| return processConveyor.add(id, msg, ProcessStep.STD_ERR); |
| } |
| |
| public CompletableFuture<Boolean> toStdErr(ProcessId id, String msg, Exception err) { |
| StringWriter sw = new StringWriter(); |
| sw.append(msg); |
| sw.append("\n"); |
| PrintWriter pw = new PrintWriter(sw); |
| err.printStackTrace(pw); |
| return processConveyor.add(id, sw.toString(), ProcessStep.STD_ERR); |
| } |
| |
| public Collection<ProcessId> getActiveProcesses() { |
| Collection<ProcessId> pList = new ArrayList<>(); |
| processConveyor.forEachKeyAndBuilder((k, b) -> pList.add(k)); |
| return pList; |
| } |
| |
| public Collection<ProcessId> getActiveProcesses(String username) { |
| return getActiveProcesses() |
| .stream() |
| .filter(id -> id.getUser().equals(username)) |
| .collect(Collectors.toList()); |
| } |
| |
| public Supplier<? extends ProcessInfo> getProcessInfoSupplier(ProcessId id) { |
| return processConveyor.getInfoSupplier(id); |
| } |
| |
| public Supplier<? extends ProcessInfo> getProcessInfoSupplier(String username, String command) { |
| return getProcessInfoSupplier(new ProcessId(username, command)); |
| } |
| |
| public void setProcessTimeout(long time, TimeUnit unit) { |
| this.expirationTime = unit.toMillis(time); |
| } |
| |
| public void setProcessTimeout(Duration duration) { |
| this.expirationTime = duration.toMilliseconds(); |
| } |
| |
| } |