Example usage for org.apache.commons.exec DefaultExecutor setStreamHandler

Introduction

In this page you can find the example usage for org.apache.commons.exec DefaultExecutor setStreamHandler.

Prototype

public void setStreamHandler(final ExecuteStreamHandler streamHandler) 

Source Link

Usage

From source file:org.apache.stratos.integration.tests.SampleApplicationTests.java

private void executeCommand(String commandText) {
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    try {//w  ww .  ja  v a  2s  .  co  m
        CommandLine commandline = CommandLine.parse(commandText);
        DefaultExecutor exec = new DefaultExecutor();
        PumpStreamHandler streamHandler = new PumpStreamHandler(outputStream);
        exec.setStreamHandler(streamHandler);
        exec.execute(commandline);
        log.info(outputStream.toString());
    } catch (Exception e) {
        log.error(outputStream.toString(), e);
        throw new RuntimeException(e);
    }
}

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From source file:org.apache.stratos.python.cartridge.agent.integration.tests.PythonAgentIntegrationTest.java

/**
 * Execute shell command/*from w w w  .  ja v  a 2s .  c om*/
 *
 * @param commandText Command string to be executed
 */
protected ByteArrayOutputStreamLocal executeCommand(final String commandText, int timeout) {
    final ByteArrayOutputStreamLocal outputStream = new ByteArrayOutputStreamLocal();
    try {
        CommandLine commandline = CommandLine.parse(commandText);
        DefaultExecutor exec = new DefaultExecutor();
        PumpStreamHandler streamHandler = new PumpStreamHandler(outputStream);
        exec.setWorkingDirectory(new File(PythonAgentIntegrationTest.class.getResource(PATH_SEP).getPath()
                + PATH_SEP + ".." + PATH_SEP + PYTHON_AGENT_DIR_NAME));
        exec.setStreamHandler(streamHandler);
        ExecuteWatchdog watchdog = new ExecuteWatchdog(timeout);
        exec.setWatchdog(watchdog);
        exec.execute(commandline, new ExecuteResultHandler() {
            @Override
            public void onProcessComplete(int i) {
                log.info(commandText + " process completed");
            }

            @Override
            public void onProcessFailed(ExecuteException e) {
                log.error(commandText + " process failed", e);
            }
        });
        executorList.put(commandText, exec);
        return outputStream;
    } catch (Exception e) {
        log.error(outputStream.toString(), e);
        throw new RuntimeException(e);
    }
}

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From source file:org.apache.stratos.python.cartridge.agent.test.PythonAgentTestManager.java

/**
 * Execute shell command//  w w  w  . j  a  v  a 2s  .  c  om
 *
 * @param commandText
 */
protected ByteArrayOutputStreamLocal executeCommand(final String commandText) {
    final ByteArrayOutputStreamLocal outputStream = new ByteArrayOutputStreamLocal();
    try {
        CommandLine commandline = CommandLine.parse(commandText);
        DefaultExecutor exec = new DefaultExecutor();
        PumpStreamHandler streamHandler = new PumpStreamHandler(outputStream);
        exec.setWorkingDirectory(new File(PythonAgentTestManager.class.getResource(PATH_SEP).getPath()
                + PATH_SEP + ".." + PATH_SEP + PYTHON_AGENT_DIR_NAME));
        exec.setStreamHandler(streamHandler);
        ExecuteWatchdog watchdog = new ExecuteWatchdog(TIMEOUT);
        exec.setWatchdog(watchdog);
        exec.execute(commandline, new ExecuteResultHandler() {
            @Override
            public void onProcessComplete(int i) {
                log.info(commandText + " process completed");
            }

            @Override
            public void onProcessFailed(ExecuteException e) {
                log.error(commandText + " process failed", e);
            }
        });
        executorList.put(commandText, exec);
        return outputStream;
    } catch (Exception e) {
        log.error(outputStream.toString(), e);
        throw new RuntimeException(e);
    }
}

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From source file:org.apache.stratos.python.cartridge.agent.test.PythonCartridgeAgentTest.java

/**
 * Execute shell command//  www  . j a v a  2 s .c  o m
 *
 * @param commandText
 */
private ByteArrayOutputStreamLocal executeCommand(final String commandText) {
    final ByteArrayOutputStreamLocal outputStream = new ByteArrayOutputStreamLocal();
    try {
        CommandLine commandline = CommandLine.parse(commandText);
        DefaultExecutor exec = new DefaultExecutor();
        PumpStreamHandler streamHandler = new PumpStreamHandler(outputStream);
        exec.setStreamHandler(streamHandler);
        ExecuteWatchdog watchdog = new ExecuteWatchdog(TIMEOUT);
        exec.setWatchdog(watchdog);
        exec.execute(commandline, new ExecuteResultHandler() {
            @Override
            public void onProcessComplete(int i) {
                log.info(commandText + " process completed");
            }

            @Override
            public void onProcessFailed(ExecuteException e) {
                log.error(commandText + " process failed", e);
            }
        });
        executorList.put(commandText, exec);
        return outputStream;
    } catch (Exception e) {
        log.error(outputStream.toString(), e);
        throw new RuntimeException(e);
    }
}

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From source file:org.apache.tika.parser.geo.topic.GeoParser.java

public HashMap<String, ArrayList<String>> searchGeoNames(ArrayList<String> locationNameEntities)
        throws ExecuteException, IOException {
    CommandLine cmdLine = new CommandLine("lucene-geo-gazetteer");
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    cmdLine.addArgument("-s");
    for (String name : locationNameEntities) {
        cmdLine.addArgument(name);/* ww w  . jav a2  s .  com*/
    }

    LOG.fine("Executing: " + cmdLine);
    DefaultExecutor exec = new DefaultExecutor();
    exec.setExitValue(0);
    ExecuteWatchdog watchdog = new ExecuteWatchdog(60000);
    exec.setWatchdog(watchdog);
    PumpStreamHandler streamHandler = new PumpStreamHandler(outputStream);
    exec.setStreamHandler(streamHandler);
    int exitValue = exec.execute(cmdLine, EnvironmentUtils.getProcEnvironment());
    String outputJson = outputStream.toString("UTF-8");
    JSONArray json = (JSONArray) JSONValue.parse(outputJson);

    HashMap<String, ArrayList<String>> returnHash = new HashMap<String, ArrayList<String>>();
    for (int i = 0; i < json.size(); i++) {
        JSONObject obj = (JSONObject) json.get(i);
        for (Object key : obj.keySet()) {
            String theKey = (String) key;
            JSONArray vals = (JSONArray) obj.get(theKey);
            ArrayList<String> stringVals = new ArrayList<String>(vals.size());
            for (int j = 0; j < vals.size(); j++) {
                String val = (String) vals.get(j);
                stringVals.add(val);
            }

            returnHash.put(theKey, stringVals);
        }
    }

    return returnHash;

}

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From source file:org.apache.tika.parser.ocr.TesseractOCRParser.java

/**
 * This method is used to process the image to an OCR-friendly format.
 * @param streamingObject input image to be processed
 * @param config TesseractOCRconfig class to get ImageMagick properties
 * @throws IOException if an input error occurred
 * @throws TikaException if an exception timed out
 *///from  w  w  w . ja  va2  s . c  o  m
private void processImage(File streamingObject, TesseractOCRConfig config) throws IOException, TikaException {

    // fetch rotation script from resources
    InputStream in = getClass().getResourceAsStream("rotation.py");
    TemporaryResources tmp = new TemporaryResources();
    File rotationScript = tmp.createTemporaryFile();
    Files.copy(in, rotationScript.toPath(), StandardCopyOption.REPLACE_EXISTING);

    String cmd = "python " + rotationScript.getAbsolutePath() + " -f " + streamingObject.getAbsolutePath();
    String angle = "0";

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

    // determine the angle of rotation required to make the text horizontal
    CommandLine cmdLine = CommandLine.parse(cmd);
    if (hasPython()) {
        try {
            executor.execute(cmdLine);
            angle = outputStream.toString("UTF-8").trim();
        } catch (Exception e) {

        }
    }

    // process the image - parameter values can be set in TesseractOCRConfig.properties
    String line = "convert -density " + config.getDensity() + " -depth " + config.getDepth() + " -colorspace "
            + config.getColorspace() + " -filter " + config.getFilter() + " -resize " + config.getResize()
            + "% -rotate " + angle + " " + streamingObject.getAbsolutePath() + " "
            + streamingObject.getAbsolutePath();
    cmdLine = CommandLine.parse(line);
    try {
        executor.execute(cmdLine);
    } catch (Exception e) {

    }

    tmp.close();
}

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From source file:org.apache.tika.parser.pot.PooledTimeSeriesParser.java

private String computePoT(File input) throws IOException, TikaException {

    CommandLine cmdLine = new CommandLine("pooled-time-series");
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    cmdLine.addArgument("-f");
    cmdLine.addArgument(input.getAbsolutePath());
    LOG.trace("Executing: {}", cmdLine);
    DefaultExecutor exec = new DefaultExecutor();
    exec.setExitValue(0);//from   w w  w  . j  ava 2s  . c  om
    ExecuteWatchdog watchdog = new ExecuteWatchdog(60000);
    exec.setWatchdog(watchdog);
    PumpStreamHandler streamHandler = new PumpStreamHandler(outputStream);
    exec.setStreamHandler(streamHandler);
    int exitValue = exec.execute(cmdLine, EnvironmentUtils.getProcEnvironment());
    return outputStream.toString("UTF-8");

}

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From source file:org.apache.zeppelin.interpreter.launcher.Kubectl.java

public int execute(String[] args, InputStream stdin, OutputStream stdout, OutputStream stderr)
        throws IOException {
    DefaultExecutor executor = new DefaultExecutor();
    CommandLine cmd = new CommandLine(kubectlCmd);
    cmd.addArguments(args);//from w  ww.  ja v a  2  s.  co m

    ExecuteWatchdog watchdog = new ExecuteWatchdog(60 * 1000);
    executor.setWatchdog(watchdog);

    PumpStreamHandler streamHandler = new PumpStreamHandler(stdout, stderr, stdin);
    executor.setStreamHandler(streamHandler);
    return executor.execute(cmd);
}

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From source file:org.apache.zeppelin.python.IPythonInterpreter.java

private void launchIPythonKernel(int ipythonPort) throws IOException {
    LOGGER.info("Launching IPython Kernel at port: " + ipythonPort);
    // copy the python scripts to a temp directory, then launch ipython kernel in that folder
    File pythonWorkDir = Files.createTempDirectory("zeppelin_ipython").toFile();
    String[] ipythonScripts = { "ipython_server.py", "ipython_pb2.py", "ipython_pb2_grpc.py" };
    for (String ipythonScript : ipythonScripts) {
        URL url = getClass().getClassLoader().getResource("grpc/python" + "/" + ipythonScript);
        FileUtils.copyURLToFile(url, new File(pythonWorkDir, ipythonScript));
    }//w ww  .  j  ava2s . co  m

    CommandLine cmd = CommandLine.parse(pythonExecutable);
    cmd.addArgument(pythonWorkDir.getAbsolutePath() + "/ipython_server.py");
    cmd.addArgument(ipythonPort + "");
    DefaultExecutor executor = new DefaultExecutor();
    ProcessLogOutputStream processOutput = new ProcessLogOutputStream(LOGGER);
    executor.setStreamHandler(new PumpStreamHandler(processOutput));
    watchDog = new ExecuteWatchdog(ExecuteWatchdog.INFINITE_TIMEOUT);
    executor.setWatchdog(watchDog);

    if (useBuiltinPy4j) {
        //TODO(zjffdu) don't do hard code on py4j here
        File py4jDestFile = new File(pythonWorkDir, "py4j-src-0.10.7.zip");
        FileUtils.copyURLToFile(getClass().getClassLoader().getResource("python/py4j-src-0.10.7.zip"),
                py4jDestFile);
        if (additionalPythonPath != null) {
            // put the py4j at the end, because additionalPythonPath may already contain py4j.
            // e.g. PySparkInterpreter
            additionalPythonPath = additionalPythonPath + ":" + py4jDestFile.getAbsolutePath();
        } else {
            additionalPythonPath = py4jDestFile.getAbsolutePath();
        }
    }

    Map<String, String> envs = setupIPythonEnv();
    executor.execute(cmd, envs, this);

    // wait until IPython kernel is started or timeout
    long startTime = System.currentTimeMillis();
    while (true) {
        try {
            Thread.sleep(100);
        } catch (InterruptedException e) {
            LOGGER.error("Interrupted by something", e);
        }

        try {
            StatusResponse response = ipythonClient.status(StatusRequest.newBuilder().build());
            if (response.getStatus() == IPythonStatus.RUNNING) {
                LOGGER.info("IPython Kernel is Running");
                break;
            } else {
                LOGGER.info("Wait for IPython Kernel to be started");
            }
        } catch (Exception e) {
            // ignore the exception, because is may happen when grpc server has not started yet.
            LOGGER.info("Wait for IPython Kernel to be started");
        }

        if ((System.currentTimeMillis() - startTime) > ipythonLaunchTimeout) {
            throw new IOException(
                    "Fail to launch IPython Kernel in " + ipythonLaunchTimeout / 1000 + " seconds");
        }
    }
}

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From source file:org.apache.zeppelin.shell.ShellInterpreter.java

@Override
public InterpreterResult interpret(String cmd, InterpreterContext contextInterpreter) {
    logger.debug("Run shell command '" + cmd + "'");
    long start = System.currentTimeMillis();
    CommandLine cmdLine = CommandLine.parse("bash");
    cmdLine.addArgument("-c", false);
    cmdLine.addArgument(cmd, false);/*  w  w  w .j ava 2 s. c om*/
    DefaultExecutor executor = new DefaultExecutor();
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    executor.setStreamHandler(new PumpStreamHandler(outputStream));

    executor.setWatchdog(new ExecuteWatchdog(commandTimeOut));
    try {
        int exitValue = executor.execute(cmdLine);
        return new InterpreterResult(InterpreterResult.Code.SUCCESS, outputStream.toString());
    } catch (ExecuteException e) {
        logger.error("Can not run " + cmd, e);
        return new InterpreterResult(Code.ERROR, e.getMessage());
    } catch (IOException e) {
        logger.error("Can not run " + cmd, e);
        return new InterpreterResult(Code.ERROR, e.getMessage());
    }
}

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