org.apache.commons.exec.PumpStreamHandler Java Examples

public int getVersion() throws Exception {
	ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
	CommandLine cmdLine = new CommandLine(p4d);
	cmdLine.addArgument("-V");
	DefaultExecutor executor = new DefaultExecutor();
	PumpStreamHandler streamHandler = new PumpStreamHandler(outputStream);
	executor.setStreamHandler(streamHandler);
	executor.execute(cmdLine);

	int version = 0;
	for (String line : outputStream.toString().split("\\n")) {
		if (line.startsWith("Rev. P4D")) {
			Pattern p = Pattern.compile("\\d{4}\\.\\d{1}");
			Matcher m = p.matcher(line);
			while (m.find()) {
				String found = m.group();
				found = found.replace(".", ""); // strip "."
				version = Integer.parseInt(found);
			}
		}
	}
	logger.info("P4D Version: " + version);
	return version;
}
 

@Override
public Map<String,Object> handle(TaskExecution aTask) throws Exception {
  CommandLine cmd = new CommandLine ("ffprobe");
  cmd.addArgument("-v")
     .addArgument("quiet")
     .addArgument("-print_format")
     .addArgument("json")
     .addArgument("-show_error")
     .addArgument("-show_format")
     .addArgument("-show_streams")
     .addArgument(aTask.getRequiredString("input"));
  log.debug("{}",cmd);
  DefaultExecutor exec = new DefaultExecutor();
  File tempFile = File.createTempFile("log", null);
  try (PrintStream stream = new PrintStream(tempFile);) {
    exec.setStreamHandler(new PumpStreamHandler(stream));
    exec.execute(cmd);
    return parse(FileUtils.readFileToString(tempFile));
  }
  catch (ExecuteException e) {
    throw new ExecuteException(e.getMessage(),e.getExitValue(), new RuntimeException(FileUtils.readFileToString(tempFile)));
  }
  finally {
    FileUtils.deleteQuietly(tempFile);
  }
}
 

private int executeWithTimeout(CommandLine command, int timeout) throws LbAdapterExecuteException, IOException {
  ByteArrayOutputStream baos = new ByteArrayOutputStream();
  DefaultExecutor executor = new DefaultExecutor();
  executor.setStreamHandler(new PumpStreamHandler(baos));
  DefaultExecuteResultHandler resultHandler = new DefaultExecuteResultHandler();

  // Start async and do our own time limiting instead of using a watchdog to avoid https://issues.apache.org/jira/browse/EXEC-62
  try {
    long start = System.currentTimeMillis();
    executor.execute(command, resultHandler);
    while (System.currentTimeMillis() - start < timeout && !resultHandler.hasResult()) {
      Thread.sleep(50);
    }
    if (resultHandler.hasResult()) {
      if (resultHandler.getException() != null) {
        throw resultHandler.getException();
      }
      return resultHandler.getExitValue();
    } else {
      CompletableFuture.runAsync(() -> executor.getWatchdog().destroyProcess(), destroyProcessExecutor);
      throw new LbAdapterExecuteException(baos.toString(Charsets.UTF_8.name()), command.toString());
    }
  } catch (ExecuteException|InterruptedException e) {
    throw new LbAdapterExecuteException(baos.toString(Charsets.UTF_8.name()), e, command.toString());
  }
}
 

public void launch() {
  DefaultExecutor executor = new DefaultExecutor();
  executor.setStreamHandler(new PumpStreamHandler(processOutput));
  this.watchdog = new ExecuteWatchdog(ExecuteWatchdog.INFINITE_TIMEOUT);
  executor.setWatchdog(watchdog);
  try {
    executor.execute(commandLine, envs, this);
    transition(State.LAUNCHED);
    LOGGER.info("Process is launched: {}", commandLine);
  } catch (IOException e) {
    this.processOutput.stopCatchLaunchOutput();
    LOGGER.error("Fail to launch process: " + commandLine, e);
    transition(State.TERMINATED);
    errorMessage = e.getMessage();
  }
}
 

public void run() {
	try {
	executor = new DaemonExecutor();
	resultHandler = new DefaultExecuteResultHandler();
	String javaHome = System.getProperty("java.home");
	String userDir = System.getProperty("user.dir");
	
	executor.setStreamHandler(new PumpStreamHandler(System.out));
	watchdog = new ExecuteWatchdog(15000);
	executor.setWatchdog(watchdog);
	executor.execute(new CommandLine(javaHome + SystemUtils.FILE_SEPARATOR 
			+ "bin"+ SystemUtils.FILE_SEPARATOR+"java.exe").addArgument("-version"));
	executor.execute(new CommandLine(javaHome + SystemUtils.FILE_SEPARATOR 
			+ "bin"+ SystemUtils.FILE_SEPARATOR+"java.exe")
		.addArgument("-jar")
		.addArgument(userDir + "/../moneta-springboot/target/moneta-springboot-" + ContractTestSuite.getProjectVersion() + ".jar"));
	
	}
	catch (Exception e) {
		e.printStackTrace();
	}
	
}
 

@BeforeClass
public static void setUpBeforeClass() throws Exception {
	System.out.println("Java Temp Dir: " +System.getProperty("java.io.tmpdir"));
	
	executor = new DefaultExecutor();
	resultHandler = new DefaultExecuteResultHandler();
	String javaHome = System.getProperty("java.home");
	String userDir = System.getProperty("user.dir");
	
	executor.setStreamHandler(new PumpStreamHandler(System.out));
	watchdog = new ExecuteWatchdog(10000);
	executor.setWatchdog(watchdog);
	executor.execute(new CommandLine(javaHome + SystemUtils.FILE_SEPARATOR 
			+ "bin"+ SystemUtils.FILE_SEPARATOR+"java.exe").addArgument("-version"));
	executor.execute(new CommandLine(javaHome + SystemUtils.FILE_SEPARATOR 
			+ "bin"+ SystemUtils.FILE_SEPARATOR+"java.exe")
		.addArgument("-jar")
		.addArgument(userDir + "/../moneta-dropwizard/target/moneta-dropwizard-" + ContractTestSuite.getProjectVersion() + ".jar")
		.addArgument("server")
		.addArgument("src/main/resources/dropwizard/moneta-dropwizard.yaml"), resultHandler);
	Thread.sleep(3000);
	System.out.println("Test sequence starting....");
}
 

public int getVersion() throws Exception {
	ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
	CommandLine cmdLine = new CommandLine(p4d);
	cmdLine.addArgument("-V");
	DefaultExecutor executor = new DefaultExecutor();
	PumpStreamHandler streamHandler = new PumpStreamHandler(outputStream);
	executor.setStreamHandler(streamHandler);
	executor.execute(cmdLine);

	int version = 0;
	for (String line : outputStream.toString().split("\\n")) {
		if (line.startsWith("Rev. P4D")) {
			Pattern p = Pattern.compile("\\d{4}\\.\\d{1}");
			Matcher m = p.matcher(line);
			while (m.find()) {
				String found = m.group();
				found = found.replace(".", ""); // strip "."
				version = Integer.parseInt(found);
			}
		}
	}
	logger.info("P4D Version: " + version);
	return version;
}
 

public int getVersion() throws Exception {
	ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
	CommandLine cmdLine = new CommandLine(p4d);
	cmdLine.addArgument("-V");
	DefaultExecutor executor = new DefaultExecutor();
	PumpStreamHandler streamHandler = new PumpStreamHandler(outputStream);
	executor.setStreamHandler(streamHandler);
	executor.execute(cmdLine);

	int version = 0;
	for (String line : outputStream.toString().split("\\n")) {
		if (line.startsWith("Rev. P4D")) {
			Pattern p = Pattern.compile("\\d{4}\\.\\d{1}");
			Matcher m = p.matcher(line);
			while (m.find()) {
				String found = m.group();
				found = found.replace(".", ""); // strip "."
				version = Integer.parseInt(found);
			}
		}
	}
	logger.info("P4D Version: " + version);
	return version;
}
 

public int getVersion() throws Exception {
	ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
	CommandLine cmdLine = new CommandLine(p4d);
	cmdLine.addArgument("-V");
	DefaultExecutor executor = new DefaultExecutor();
	PumpStreamHandler streamHandler = new PumpStreamHandler(outputStream);
	executor.setStreamHandler(streamHandler);
	executor.execute(cmdLine);

	int version = 0;
	for (String line : outputStream.toString().split("\\n")) {
		if (line.startsWith("Rev. P4D")) {
			Pattern p = Pattern.compile("\\d{4}\\.\\d{1}");
			Matcher m = p.matcher(line);
			while (m.find()) {
				String found = m.group();
				found = found.replace(".", ""); // strip "."
				version = Integer.parseInt(found);
			}
		}
	}
	logger.info("P4D Version: " + version);
	return version;
}
 

protected void startTranscode()
{
	try 
	{	
		logger.info("Starting transcode");
		
		notifyObservers(SessionEvent.PRESTART, null);
		
		this.outstream = new TranscodeSessionOutputStream(this);
		this.resultHandler = new TranscodeSessionResultHandler(this.watchdog, this);
		
		this.executor.setWorkingDirectory(new File(this.workingDirectoryPath));
		this.executor.setStreamHandler(new PumpStreamHandler(this.outstream));
		this.executor.setProcessDestroyer(new TranscodeSessionDestroyer(this));
		this.executor.setWatchdog(this.watchdog);
		this.executor.setExitValue(0);
		
		
		this.executor.execute(this.cmdLine, this.resultHandler);
	} 
	catch (Exception e) 
	{
		logger.info("Error starting process " + e.getMessage());
	}
}
 

protected String RunSimpleCommandLineCommand(String line, int expectedExitValue) throws IOException, TimeoutException {
    CommandLine cmdLine = CommandLine.parse(line);
    DefaultExecutor executor = new DefaultExecutor();
    File bot = new File(this.getBotDirectory());
    executor.setWorkingDirectory(bot);
    executor.setExitValue(expectedExitValue);

    ExecuteWatchdog watchdog = new ExecuteWatchdog(this.timeoutInMilliseconds);
    executor.setWatchdog(watchdog);

    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    PumpStreamHandler streamHandler = new PumpStreamHandler(outputStream);
    executor.setStreamHandler(streamHandler);

    try {
        executor.execute(cmdLine);
    } catch (IOException e) {
        if (watchdog.killedProcess()) {
            throw new TimeoutException("Bot process timed out after " + this.timeoutInMilliseconds + "ms of inactivity");
        } else {
            throw e;
        }
    }

    return outputStream.toString();
}
 

private String execProcess(String command) {
    logger.debug(command);

    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    CommandLine commandline = CommandLine.parse(command);
    DefaultExecutor exec = new DefaultExecutor();
    exec.setStreamHandler(new PumpStreamHandler(outputStream));
    int exitCode;

    try {
        exitCode = exec.execute(commandline);
    } catch (IOException e) {
        throw new RuntimeException("Unable to execute " + command + ": " + outputStream, e);
    }
    if (exitCode != 0) {
        throw new RuntimeException(command + " exited with code " + exitCode + ", " + outputStream);
    }
    String output = outputStream.toString();
    logger.debug(System.lineSeparator() + output);
    return output;
}
 

public int unload(String loadedInputPath) throws Exception {
	String unloaderDir = platformConfig.getUnloaderPath();
	commandLine = new CommandLine(Paths.get(unloaderDir).toFile());

	commandLine.addArgument("--graph-name");
	commandLine.addArgument(formattedGraph.getName());

	commandLine.addArgument("--output-path");
	commandLine.addArgument(loadedInputPath);

	String commandString = StringUtils.toString(commandLine.toStrings(), " ");
	LOG.info(String.format("Execute graph unloader with command-line: [%s]", commandString));

	Executor executor = new DefaultExecutor();
	executor.setStreamHandler(new PumpStreamHandler(System.out, System.err));
	executor.setExitValue(0);

	return executor.execute(commandLine);
}
 

@Test
public void givenPythonScript_whenPythonProcessExecuted_thenSuccess() throws ExecuteException, IOException {
    String line = "python " + resolvePythonScriptPath("hello.py");
    CommandLine cmdLine = CommandLine.parse(line);

    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    PumpStreamHandler streamHandler = new PumpStreamHandler(outputStream);

    DefaultExecutor executor = new DefaultExecutor();
    executor.setStreamHandler(streamHandler);

    int exitCode = executor.execute(cmdLine);
    assertEquals("No errors should be detected", 0, exitCode);
    assertEquals("Should contain script output: ", "Hello Baeldung Readers!!", outputStream.toString()
        .trim());
}
 

/**
 * Start a new process to execute.
 *
 * @return log or result output stream
 */
public OutputStream exec() {
    CommandLine commandLine = CommandLine.parse(submit());
    commandLine.addArguments(arguments());
    LOGGER.debug("CommandLine is " + commandLine.toString());

    DefaultExecutor executor = new DefaultExecutor();
    executor.setStreamHandler(new PumpStreamHandler(System.out));
    try {
        executor.execute(commandLine);
    } catch (Exception ex) {
        ex.printStackTrace();
        LOGGER.error("Process executing failed!! Caused by: " + ex.getMessage());
        throw new RuntimeException(ex);
    }

    return System.out;
}
 

/**
 * 日志文件输出方式
 *
 * 优点：支持将目标数据实时输出到指定日志文件中去
 * 缺点：
 *      标准输出和错误输出优先级固定，可能和脚本中顺序不一致
 *      Java无法实时获取
 *
 * @param command
 * @param scriptFile
 * @param logFile
 * @param params
 * @return
 * @throws IOException
 */
public static int execToFile(String command, String scriptFile, String logFile, String... params) throws IOException {
    // 标准输出：print （null if watchdog timeout）
    // 错误输出：logging + 异常 （still exists if watchdog timeout）
    // 标准输入
    try (FileOutputStream fileOutputStream = new FileOutputStream(logFile, true)) {
        PumpStreamHandler streamHandler = new PumpStreamHandler(fileOutputStream, fileOutputStream, null);

        // command
        CommandLine commandline = new CommandLine(command);
        commandline.addArgument(scriptFile);
        if (params!=null && params.length>0) {
            commandline.addArguments(params);
        }

        // exec
        DefaultExecutor exec = new DefaultExecutor();
        exec.setExitValues(null);
        exec.setStreamHandler(streamHandler);
        int exitValue = exec.execute(commandline);  // exit code: 0=success, 1=error
        return exitValue;
    }
}
 

public static synchronized void executeGeneratePDF(CommandLineBuilder cmd) {
    String outputDirectory = "--output-directory=" + cmd.getOutputDirectory();
    String outputFormat = "--output-format=pdf";
    String job = cmd.getJobname() == null ? "" : "--jobname=" + cmd.getJobname().replaceAll(" ", "_");
    ByteArrayOutputStream outputStream = null;
    
    try {           
        String[] command =  new String[] {
            outputDirectory, outputFormat, job, cmd.getPathToSource()
        };
     
        CommandLine cmdLine = new CommandLine(ApplicationUtils.getPathToTEX(cmd.getLatexPath()));
        //For windows, we set handling quoting to true
        cmdLine.addArguments(command, ApplicationUtils.isWindows());
        
        outputStream = new ByteArrayOutputStream();
        PumpStreamHandler streamHandler = new PumpStreamHandler(outputStream);
        EXECUTOR.setStreamHandler(streamHandler);
        
        if (cmd.getWorkingFile() != null) {
            EXECUTOR.setWorkingDirectory(cmd.getWorkingFile().getParentFile().getAbsoluteFile());
        }
        
        EXECUTOR.execute(cmdLine);      

        if (cmd.getLogger() != null) {
            cmd.getLogger().log(cmdLine.toString());
            cmd.getLogger().log(outputStream.toString());
        }
                    
    } catch (IOException e) {
        if (cmd.getLogger() != null) {
            cmd.getLogger().log("The path to the pdflatex tool is incorrect or has not been set.");
        }
    } finally {
        IOUtils.closeQuietly(outputStream);
    }
}
 

public String runCommand(CommandLine commandline) throws IOException {
    DefaultExecutor exec = new DefaultExecutor();
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    PumpStreamHandler streamHandler = new PumpStreamHandler(outputStream);
    exec.setStreamHandler(streamHandler);
    exec.execute(commandline);
    return outputStream.toString(Charset.defaultCharset().name());
}
 

public void executeAsync() {
  try {
    final OutputStream outputStream = getOutputStream();
    executeWatchdog.reset();
    executor.setWatchdog(executeWatchdog);
    streamHandler = new PumpStreamHandler(outputStream, outputStream, getInputStream());
    executor.setStreamHandler(streamHandler);
    executor.execute(cl, getMergedEnv(), handler);
  } catch (IOException e) {
    throw new WebDriverException(e);
  }
}
 

private int innerExec(String... args)
        throws IOException {
    File p4d = P4ExtFileUtils.extractP4d(outDir, version);
    CommandLine cmdLine = createBaseCmdLine(p4d);
    for (String arg : args) {
        cmdLine.addArgument(arg);
    }
    DefaultExecutor executor = new DefaultExecutor();
    // default - log is pumped to stderr.
    PumpStreamHandler streamHandler = new PumpStreamHandler(status.out, status.log);
    executor.setStreamHandler(streamHandler);
    executor.setProcessDestroyer(processDestroyer);
    return executor.execute(cmdLine);
}
 

public int load(String loadedInputPath) throws Exception {
	String loaderDir = platformConfig.getLoaderPath();
	commandLine = new CommandLine(Paths.get(loaderDir).toFile());

	commandLine.addArgument("--graph-name");
	commandLine.addArgument(formattedGraph.getName());
	commandLine.addArgument("--input-vertex-path");
	commandLine.addArgument(formattedGraph.getVertexFilePath());
	commandLine.addArgument("--input-edge-path");
	commandLine.addArgument(formattedGraph.getEdgeFilePath());
	commandLine.addArgument("--output-path");
	commandLine.addArgument(loadedInputPath);
	commandLine.addArgument("--directed");
	commandLine.addArgument(formattedGraph.isDirected() ? "true" : "false");
	commandLine.addArgument("--weighted");
	commandLine.addArgument(formattedGraph.hasEdgeProperties() ? "true" : "false");


	String commandString = StringUtils.toString(commandLine.toStrings(), " ");
	LOG.info(String.format("Execute graph loader with command-line: [%s]", commandString));

	Executor executor = new DefaultExecutor();
	executor.setStreamHandler(new PumpStreamHandler(System.out, System.err));
	executor.setExitValue(0);

	return executor.execute(commandLine);
}
 

/**
 * Executes the platform job with the pre-defined parameters.
 *
 * @return the exit code
 * @throws IOException if the platform failed to run
 */
public int execute() throws Exception {
	String executableDir = platformConfig.getExecutablePath();
	commandLine = new CommandLine(Paths.get(executableDir).toFile());

	// List of benchmark parameters.
	String jobId = getJobId();
	String logDir = getLogPath();

	// List of dataset parameters.
	String inputPath = getInputPath();
	String outputPath = getOutputPath();

	// List of platform parameters.
	int numMachines = platformConfig.getNumMachines();
	int numThreads = platformConfig.getNumThreads();
	String homeDir = platformConfig.getHomePath();

	appendBenchmarkParameters(jobId, logDir);
	appendAlgorithmParameters();
	appendDatasetParameters(inputPath, outputPath);
	appendPlatformConfigurations(homeDir, numMachines, numThreads);

	String commandString = StringUtils.toString(commandLine.toStrings(), " ");
	LOG.info(String.format("Execute benchmark job with command-line: [%s]", commandString));

	Executor executor = new DefaultExecutor();
	executor.setStreamHandler(new PumpStreamHandler(System.out, System.err));
	executor.setExitValue(0);
	return executor.execute(commandLine);
}
 

public static String runCommand(CommandLine commandline) throws IOException {
    DefaultExecutor exec = new DefaultExecutor();
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    PumpStreamHandler streamHandler = new PumpStreamHandler(outputStream);
    exec.setStreamHandler(streamHandler);
    exec.execute(commandline);
    return outputStream.toString(Charset.defaultCharset().name());
}
 

public static void ps() {
  DefaultExecutor executor = new DefaultExecutor();
  executor.setStreamHandler(new PumpStreamHandler(System.out, System.err));

  CommandLine cmd = CommandLine.parse("ps");
  cmd.addArgument("aux", false);

  try {
    executor.execute(cmd);
  } catch (IOException e) {
    LOG.error(e.getMessage(), e);
  }
}
 

public static DefaultExecuteResultHandler executeBash(String command) throws IOException {
    CommandLine cmdLine = CommandLine.parse("bash");
    cmdLine.addArgument("-c", false);
    cmdLine.addArgument(command, false);

    DefaultExecutor executor = new DefaultExecutor();
    ByteArrayOutputStream outputStreamAgentStart = new ByteArrayOutputStream();
    executor.setStreamHandler(new PumpStreamHandler(outputStreamAgentStart));
    DefaultExecuteResultHandler handler = new DefaultExecuteResultHandler();
    executor.execute(cmdLine, handler);

    return handler;
}
 

private Future<CommandResult> executeCommand(String command, File executionDirectory, boolean silent)
		throws IOException {

	StringWriter writer = new StringWriter();
	DefaultExecuteResultHandler resultHandler = new DefaultExecuteResultHandler();

	try (WriterOutputStream outputStream = new WriterOutputStream(writer)) {

		String outerCommand = "/bin/bash -lc";

		CommandLine outer = CommandLine.parse(outerCommand);
		outer.addArgument(command, false);

		DefaultExecutor executor = new DefaultExecutor();
		executor.setWorkingDirectory(executionDirectory);
		executor.setStreamHandler(new PumpStreamHandler(silent ? outputStream : System.out, null));
		executor.execute(outer, ENVIRONMENT, resultHandler);

		resultHandler.waitFor();

	} catch (InterruptedException e) {
		throw new IllegalStateException(e);
	}

	return new AsyncResult<CommandResult>(
			new CommandResult(resultHandler.getExitValue(), writer.toString(), resultHandler.getException()));
}
 

/**
 * If it is backend, please set resultHandler, such as DefaultExecuteResultHandler
 * If it is frontend, ByteArrayOutputStream.toString will return the calling result
 * <p>
 * This function will ignore whether the command is successfully executed or not
 *
 * @param command       command to be executed
 * @param environment   env vars
 * @param workDir       working directory
 * @param resultHandler exec result handler
 * @return output stream
 * @throws IOException
 */
@Deprecated
public static ByteArrayOutputStream launchProcess(
        String command, final Map environment, final String workDir,
        ExecuteResultHandler resultHandler) throws IOException {

    String[] cmdlist = command.split(" ");

    CommandLine cmd = new CommandLine(cmdlist[0]);
    for (String cmdItem : cmdlist) {
        if (!StringUtils.isBlank(cmdItem)) {
            cmd.addArgument(cmdItem);
        }
    }

    DefaultExecutor executor = new DefaultExecutor();

    executor.setExitValue(0);
    if (!StringUtils.isBlank(workDir)) {
        executor.setWorkingDirectory(new File(workDir));
    }

    ByteArrayOutputStream out = new ByteArrayOutputStream();

    PumpStreamHandler streamHandler = new PumpStreamHandler(out, out);
    executor.setStreamHandler(streamHandler);

    try {
        if (resultHandler == null) {
            executor.execute(cmd, environment);
        } else {
            executor.execute(cmd, environment, resultHandler);
        }
    } catch (ExecuteException ignored) {
    }

    return out;

}
 

/**
 * Create a new {@link Executor} implementation instance.
 *
 * @param detached Whether the streams for processes run on this executor should be detached (ignored) or not
 * @return A {@link Executor} instance
 */
public Executor newInstance(final boolean detached) {
    final Executor executor = new DefaultExecutor();
    if (detached) {
        executor.setStreamHandler(new PumpStreamHandler(null, null));
    }
    return executor;
}
 

public synchronized void start() {
    if (isRecording) {
        return;
    }

    countDownLatch = new CountDownLatch(1);

    try {
        videoName = UUIDUtil.getUUID() + ".mp4";
        startCmd = String.format("scrcpy -s %s -Nr %s -b%sM -p %d",
                mobileId,
                videoName,
                App.getProperty("androidRecordVideoBitRate"),
                PortProvider.getScrcpyRecordVideoPort());
        log.info("[{}]start record video, cmd: {}", mobileId, startCmd);
        Terminal.executeAsync(startCmd, new PumpStreamHandler(new LogOutputStream() {
            @Override
            protected void processLine(String line, int i) {
                log.info("[{}]scrcpy: {}", mobileId, line);
                if (line.contains("Recording complete")) {
                    countDownLatch.countDown();
                }
            }
        }));
        isRecording = true;
    } catch (IOException e) {
        isRecording = false;
        throw new RuntimeException(e);
    }
}
 

@Override
public App get(App app) {
  int pid;
  if (app == null) {
    return app;
  }
  pid = app.getPID();
  if (!app.isClosing() && pid < 0) {
    if (app.getNameGiven() != null && !app.getNameGiven().isEmpty()) {
      pid = findWindowPID(app.getNameGiven(), 0);
      app.setPID(pid);
    }
    return app;
  }
  if (app.isClosing() && pid > -1) {
    DefaultExecutor executor = new DefaultExecutor();
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    executor.setStreamHandler(new PumpStreamHandler(outputStream));
    CommandLine command = CommandLine.parse("ps -p " + pid);
    try {
      executor.execute(command);
      app.setPID(pid);
    } catch (Exception e) {
      if (outputStream.toString().split("\\n").length == 1) {
        app.setPID(-1);
        app.setWindow("");
      } else {
        Debug.log(3, "[error] LinuxUtil::executeCommand: %s (%s)", command, e.getMessage());
        logCommandSysout(command.toString(), outputStream);
      }
    }
  }
  return app;
}