Example usage for java.lang Process getErrorStream

Introduction

In this page you can find the example usage for java.lang Process getErrorStream.

Prototype

public abstract InputStream getErrorStream();

Source Link

Document

Returns the input stream connected to the error output of the process.

Usage

From source file:com.streamsets.pipeline.stage.executor.shell.ShellExecutor.java

private void executeScript(Record record) throws StageException {
    File script = null;//from  w w  w  .j  av  a2 s. com
    try {
        script = File.createTempFile("sdc-script-executor", ".sh");
        ELVars variables = getContext().createELVars();
        RecordEL.setRecordInContext(variables, record);

        // Serialize the script into a file on disk (in temporary location)
        FileUtils.writeStringToFile(script, config.script);

        ImmutableList.Builder<String> commandBuilder = new ImmutableList.Builder<>();
        if (impersonationMode != ImpersonationMode.DISABLED) {
            commandBuilder.add(sudo);
            commandBuilder.add("-E");
            commandBuilder.add("-u");
            commandBuilder.add(user);
        }

        commandBuilder.add(shell);
        commandBuilder.add(script.getPath());

        List<String> commandLine = commandBuilder.build();

        // External process configuration
        ProcessBuilder processBuilder = new ProcessBuilder(commandLine);
        for (Map.Entry<String, String> entry : config.environmentVariables.entrySet()) {
            processBuilder.environment().put(eval.eval(variables, entry.getKey(), String.class),
                    eval.eval(variables, entry.getValue(), String.class));
        }

        // Start process and configure forwarders for stderr/stdin
        LOG.debug("Executing script: {}", StringUtils.join(commandLine, " "));
        Process process = processBuilder.start();
        new Thread(new ProcessStdIOForwarder(false, process.getInputStream())).start();
        new Thread(new ProcessStdIOForwarder(true, process.getErrorStream())).start();

        int pid = retrievePidIfFeasible(process);
        LOG.debug("Created process with PID {}", pid);

        // User configures the maximal time for the script execution
        boolean finished = process.waitFor(timeout, TimeUnit.MILLISECONDS);
        if (!finished) {
            process.destroyForcibly();
            throw new OnRecordErrorException(record, Errors.SHELL_002);
        }

        if (process.exitValue() != 0) {
            throw new OnRecordErrorException(record, Errors.SHELL_003, process.exitValue());
        }
    } catch (OnRecordErrorException e) {
        errorRecordHandler.onError(e);
    } catch (Exception e) {
        errorRecordHandler.onError(new OnRecordErrorException(record, Errors.SHELL_001, e.toString(), e));
    } finally {
        if (script != null && script.exists()) {
            script.delete();
        }
    }
}

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From source file:ee.ria.xroad.monitor.executablelister.AbstractExecLister.java

/**
 * Method for testability/*  w  w  w . j  av  a 2s .  c om*/
 * @return
 * @throws IOException
 * @throws InterruptedException
 */
ProcessOutputs executeProcess() throws IOException, InterruptedException {

    ProcessBuilder b = new ProcessBuilder("/bin/sh", "-c", getCommand());

    Process p = b.start();
    p.waitFor();
    ProcessOutputs outputs = new ProcessOutputs();
    // need to read all of output everytime, reading it partially causes bad problems
    outputs.setOut(CharStreams.toString(new InputStreamReader(p.getInputStream())).replace("'", ""));
    outputs.setErr(CharStreams.toString(new InputStreamReader(p.getErrorStream())));
    return outputs;
}

---

From source file:com.gemstone.gemfire.test.dunit.standalone.ProcessManager.java

public synchronized void launchVM(int vmNum) throws IOException {
    if (processes.containsKey(vmNum)) {
        throw new IllegalStateException("VM " + vmNum + " is already running.");
    }//w w w  .j  a v  a2s .c  o m

    String[] cmd = buildJavaCommand(vmNum, namingPort);
    System.out.println("Executing " + Arrays.asList(cmd));
    File workingDir = getVMDir(vmNum);
    try {
        FileUtil.delete(workingDir);
    } catch (IOException e) {
        //This delete is occasionally failing on some platforms, maybe due to a lingering
        //process. Allow the process to be launched anyway.
        System.err.println(
                "Unable to delete " + workingDir + ". Currently contains " + Arrays.asList(workingDir.list()));
    }
    workingDir.mkdirs();
    if (log4jConfig != null) {
        FileUtils.copyFileToDirectory(log4jConfig, workingDir);
    }

    //TODO - delete directory contents, preferably with commons io FileUtils
    Process process = Runtime.getRuntime().exec(cmd, null, workingDir);
    pendingVMs++;
    ProcessHolder holder = new ProcessHolder(process);
    processes.put(vmNum, holder);
    linkStreams(vmNum, holder, process.getErrorStream(), System.err);
    linkStreams(vmNum, holder, process.getInputStream(), System.out);
}

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From source file:io.hops.experiments.benchmarks.interleaved.InterleavedBenchmark.java

private void runCommand(String command) {
    try {//from ww w.j a v a2  s  .c o m
        Logger.printMsg("Going to execute command " + command);
        Process p = Runtime.getRuntime().exec(command);
        printErrors(p.getErrorStream());
        printErrors(p.getInputStream());
        p.waitFor();

        if (command.contains("kill")) { //[s] for some reason NameNode does not start soon after it is killed. TODO: fix it
            Thread.sleep(1000);
        }
    } catch (IOException e) {
        e.printStackTrace();
        Logger.printMsg(
                "Exception During Restarting the NameNode Command " + command + "   Ex: " + e.toString());
    } catch (InterruptedException e) {
        Logger.error(e);
        Logger.printMsg(
                "Exception During Restarting the NameNode Command " + command + "   Ex: " + e.toString());
    }
}

---

From source file:com.thoughtworks.go.util.command.ProcessRunner.java

public int run() throws IOException, InterruptedException {
    File workingDir = builder.directory() == null ? new File(".") : builder.directory();
    System.out.println(String.format("Trying to run command: %s from %s",
            Arrays.toString(builder.command().toArray()), workingDir.getAbsolutePath()));
    Process process = builder.start();
    int exitCode = process.waitFor();
    System.out.println(//from ww w  .j  a va  2s.c o  m
            "Finished command: " + Arrays.toString(builder.command().toArray()) + ". Exit code: " + exitCode);
    if (exitCode != 0) {
        if (failOnError) {
            throw new RuntimeException(String.format("Command exited with code %s. \n Exception: %s", exitCode,
                    IOUtils.toString(process.getErrorStream())));
        } else {
            LOGGER.error("Command exited with code {}. \n Exception: {}", exitCode,
                    IOUtils.toString(process.getErrorStream()));
        }
    }
    return exitCode;
}

---

From source file:com.microsoft.azure.management.samples.Utils.java

/**
 * This method is used for invoking native commands.
 *
 * @param command/*from  w w  w  .j a  v  a  2  s.  co m*/
 *            :- command to invoke.
 * @param ignoreErrorStream
 *            : Boolean which controls whether to throw exception or not
 *            based on error stream.
 * @return result :- depending on the method invocation.
 * @throws Exception exceptions thrown from the execution
 */
public static String cmdInvocation(String[] command, boolean ignoreErrorStream) throws Exception {
    String result = "";
    String error = "";
    InputStream inputStream = null;
    InputStream errorStream = null;
    BufferedReader br = null;
    BufferedReader ebr = null;
    try {
        Process process = new ProcessBuilder(command).start();
        inputStream = process.getInputStream();
        errorStream = process.getErrorStream();
        br = new BufferedReader(new InputStreamReader(inputStream));
        result = br.readLine();
        process.waitFor();
        ebr = new BufferedReader(new InputStreamReader(errorStream));
        error = ebr.readLine();
        if (error != null && (!error.equals(""))) {
            // To do - Log error message

            if (!ignoreErrorStream) {
                throw new Exception(error, null);
            }
        }
    } catch (Exception e) {
        throw new Exception("Exception occurred while invoking command", e);
    } finally {
        if (inputStream != null) {
            inputStream.close();
        }
        if (errorStream != null) {
            errorStream.close();
        }
        if (br != null) {
            br.close();
        }
        if (ebr != null) {
            ebr.close();
        }
    }
    return result;
}

---

From source file:net.ostis.scpdev.builder.SCsFileBuilder.java

protected InputStream convertSCsSource(String sourceRawPath, IFolder binroot) throws CoreException {
    String scs2tgf = ScCoreModule.getSCsCompilerPath();
    String includeOsPath = srcroot.getFolder("include").getLocation().toOSString();
    String binOsPath = getRawBinaryPath(binroot, source);

    try {/*from   ww  w. ja v  a 2  s. co m*/
        Process ps = Runtime
                .getRuntime().exec(
                        String.format("\"%s\" -nc -I\"%s\" \"%s\" \"%s\"", scs2tgf, includeOsPath,
                                sourceRawPath, binOsPath),
                        null, new File(source.getParent().getLocation().toOSString()));
        if (ps.waitFor() != 0)
            return ps.getErrorStream();
    } catch (Exception e) {
        log.error("Unexpected exception", e);
        throw new CoreException(new Status(IStatus.ERROR, ScpdevPlugin.PLUGIN_ID, "Unexpected exception", e));
    }

    return null;
}

---

From source file:com.kdmanalytics.toif.adaptor.SplintAdaptor.java

@Override
public String getGeneratorVersion() {
    final String[] commands = { "splint", "-help", "version" };
    ProcessBuilder splint = new ProcessBuilder(commands);
    try {//w w  w  . j  a  v a  2 s  .  c om
        Process splintInstance = splint.start();
        InputStream in = splintInstance.getErrorStream();

        BufferedReader br = new BufferedReader(new InputStreamReader(in));

        String strLine;

        while ((strLine = br.readLine()) != null) {
            String[] stringArray = strLine.split(" ");

            if (stringArray[1].trim().equals("3.1.2")) {
                return stringArray[1].trim();
            } else {
                System.err.println(getAdaptorName() + ": Generator " + stringArray[1]
                        + " found, only version 3.1.2 has been tested");
                return stringArray[1].trim();
            }
        }

    } catch (IOException e) {
        e.printStackTrace();
    }

    return "";
}

---

From source file:br.unb.bionimbuz.storage.bucket.methods.CloudMethodsAmazonGoogle.java

@Override
public void CheckStorageLatency(BioBucket bucket) throws Exception {

    if (!bucket.isMounted())
        throw new Exception("Cant check latency! Bucket not mounted: " + bucket.getName());

    float latency = 0;
    int i;/*from   w  ww.  j  a  v a2s . co m*/

    for (i = 0; i < LATENCY_CHECKS; i++) {
        //Upload
        String command = "/bin/dd if=/dev/zero of=" + bucket.getMountPoint() + "/pingfile-" + myId
                + " bs=64 count=1 oflag=dsync";

        Runtime rt = Runtime.getRuntime();
        Process proc = rt.exec(command);
        //System.out.println("\nRunning command: " + command);
        InputStream stderr = proc.getErrorStream();
        InputStreamReader isr = new InputStreamReader(stderr);
        BufferedReader br = new BufferedReader(isr);
        String line;

        List<String> output = new ArrayList<>();

        while ((line = br.readLine()) != null) {
            output.add(line);
            //System.out.println("[command] " + line);
        }

        int exitVal = proc.waitFor();
        //System.out.println("[command] Process exitValue: " + exitVal);

        if (exitVal != 0) {
            throw new Exception("Error in command: " + command);
        }
        int pos1, pos2;

        pos1 = output.get(output.size() - 1).indexOf(" copied, ");
        pos1 += 9;

        pos2 = output.get(output.size() - 1).indexOf(" s, ");

        String aux;

        aux = output.get(output.size() - 1).substring(pos1, pos2);
        aux = aux.replace(',', '.');

        float value = Float.parseFloat(aux);

        latency += value;
        //System.out.println("[current] Latency: " + (latency / (i + 1)));

        File faux = new File(bucket.getMountPoint() + "/pingfile-" + myId);
        faux.delete();
    }

    bucket.setLatency(latency / (i + 1));
}

---

From source file:br.unb.cic.bionimbuz.services.storage.bucket.methods.CloudMethodsAmazonGoogle.java

private void CheckStorageUpBandwith(BioBucket bucket) throws Exception {

    // Upload/*ww w  . ja va 2  s . com*/
    final String command = "/bin/dd if=/dev/zero of=" + bucket.getMountPoint() + "/testfile-" + myId
            + " bs=30M count=1 iflag=nocache oflag=nocache";

    final Runtime rt = Runtime.getRuntime();
    final Process proc = rt.exec(command);
    // System.out.println("\nRunning command: " + command);
    final InputStream stderr = proc.getErrorStream();
    final InputStreamReader isr = new InputStreamReader(stderr);
    final BufferedReader br = new BufferedReader(isr);
    String line;

    final List<String> output = new ArrayList<>();

    while ((line = br.readLine()) != null) {
        output.add(line);
        // System.out.println("[command] " + line);
    }

    final int exitVal = proc.waitFor();
    // System.out.println("[command] Process exitValue: " + exitVal);

    if (exitVal != 0) {
        throw new Exception("Error in command: " + command);
    }

    int pos1, pos2;

    pos1 = output.get(output.size() - 1).indexOf(" copied, ");
    pos1 += 9;

    pos2 = output.get(output.size() - 1).indexOf(" s, ");

    String aux;

    aux = output.get(output.size() - 1).substring(pos1, pos2);
    aux = aux.replace(',', '.');

    final float value = Float.parseFloat(aux);

    bucket.setUpBandwith(31 * 1024 * 1024 / value);
}

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